Indexes getting fragmented very quickly

We have been running SQL Server 2000 on a production machine for years.
Within the last 6 months, we have noticed a performance problem. The
system will suddenly slow to a crawl. We run DBCC Reindex for all of
the tables in the our database, and things go back to normal - running
very quickly. We are currently having to do this multiple times a day.
We have verified the indexes are getting fragmented by using the DBCC
showcontig. What will cause the indexes to get fragmented so quickly?
How do we prevent this from happening?
Any help would greatly be appreciated.
Thank you!
Jayme> What will cause the indexes to get fragmented so quickly?
Some possibilities:
Lots of inserts over a key that is no monotonically increasing.
Lost of updates (where value in index key changes).
Shrinking of database files.
--
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
"Jayme" <jayloub@.comcast.net> wrote in message
news:1150568837.067145.140050@.c74g2000cwc.googlegroups.com...
> We have been running SQL Server 2000 on a production machine for years.
> Within the last 6 months, we have noticed a performance problem. The
> system will suddenly slow to a crawl. We run DBCC Reindex for all of
> the tables in the our database, and things go back to normal - running
> very quickly. We are currently having to do this multiple times a day.
> We have verified the indexes are getting fragmented by using the DBCC
> showcontig. What will cause the indexes to get fragmented so quickly?
> How do we prevent this from happening?
> Any help would greatly be appreciated.
> Thank you!
> Jayme
>|||Jayme wrote:
> We have been running SQL Server 2000 on a production machine for years.
> Within the last 6 months, we have noticed a performance problem. The
> system will suddenly slow to a crawl. We run DBCC Reindex for all of
> the tables in the our database, and things go back to normal - running
> very quickly. We are currently having to do this multiple times a day.
> We have verified the indexes are getting fragmented by using the DBCC
> showcontig. What will cause the indexes to get fragmented so quickly?
> How do we prevent this from happening?
> Any help would greatly be appreciated.
> Thank you!
> Jayme
>
Are you sure you're seeing index fragmentation, and not disk
fragmentation? Post the output of your DBCC command..|||Tracy McKibben wrote:
> Jayme wrote:
> > We have been running SQL Server 2000 on a production machine for years.
> > Within the last 6 months, we have noticed a performance problem. The
> > system will suddenly slow to a crawl. We run DBCC Reindex for all of
> > the tables in the our database, and things go back to normal - running
> > very quickly. We are currently having to do this multiple times a day.
> > We have verified the indexes are getting fragmented by using the DBCC
> > showcontig. What will cause the indexes to get fragmented so quickly?
> > How do we prevent this from happening?
> >
> > Any help would greatly be appreciated.
> > Thank you!
> > Jayme
> >
> Are you sure you're seeing index fragmentation, and not disk
> fragmentation? Post the output of your DBCC command..
Check out for disk fragmentation also.
If Index fragmentation , then BOL has very good sample, in DBCC
Showconting topic.
It will check index fragmentation and defrag index which are fragmented
below threshold value. Run it regularly.
Regards
Amish Shah|||This is the dbcc output before the reindex is done:
DBCC SHOWCONTIG scanning 'QCSKUTable' table...
Table: 'QCSKUTable' (32771224); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 533
- Extents Scanned.......................: 68
- Extent Switches.......................: 67
- Avg. Pages per Extent..................: 7.8
- Scan Density [Best Count:Actual Count]......: 98.53% [67:68]
- Logical Scan Fragmentation ..............: 9.01%
- Extent Scan Fragmentation ...............: 72.06%
- Avg. Bytes Free per Page................: 789.2
- Avg. Page Density (full)................: 90.25%
DBCC SHOWCONTIG scanning 'Map' table...
Table: 'Map' (101575400); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 6089.0
- Avg. Page Density (full)................: 24.77%
DBCC SHOWCONTIG scanning 'Zone' table...
Table: 'Zone' (133575514); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 70
- Extents Scanned.......................: 9
- Extent Switches.......................: 8
- Avg. Pages per Extent..................: 7.8
- Scan Density [Best Count:Actual Count]......: 100.00% [9:9]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 11.11%
- Avg. Bytes Free per Page................: 837.4
- Avg. Page Density (full)................: 89.65%
DBCC SHOWCONTIG scanning 'QCConfiguration' table...
Table: 'QCConfiguration' (192771794); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 6976.0
- Avg. Page Density (full)................: 13.81%
DBCC SHOWCONTIG scanning 'TestQCSKUTable' table...
Table: 'TestQCSKUTable' (230395990); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 535
- Extents Scanned.......................: 68
- Extent Switches.......................: 67
- Avg. Pages per Extent..................: 7.9
- Scan Density [Best Count:Actual Count]......: 98.53% [67:68]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 67.65%
- Avg. Bytes Free per Page................: 786.5
- Avg. Page Density (full)................: 90.28%
DBCC SHOWCONTIG scanning 'Bay' table...
Table: 'Bay' (325576198); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 5
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 5.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 20.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 2084.0
- Avg. Page Density (full)................: 74.25%
DBCC SHOWCONTIG scanning 'ZoneMap' table...
Table: 'ZoneMap' (357576312); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 309
- Extents Scanned.......................: 39
- Extent Switches.......................: 38
- Avg. Pages per Extent..................: 7.9
- Scan Density [Best Count:Actual Count]......: 100.00% [39:39]
- Logical Scan Fragmentation ..............: 0.32%
- Extent Scan Fragmentation ...............: 69.23%
- Avg. Bytes Free per Page................: 799.9
- Avg. Page Density (full)................: 90.12%
DBCC SHOWCONTIG scanning 'Device' table...
Table: 'Device' (421576540); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 293
- Extents Scanned.......................: 37
- Extent Switches.......................: 36
- Avg. Pages per Extent..................: 7.9
- Scan Density [Best Count:Actual Count]......: 100.00% [37:37]
- Logical Scan Fragmentation ..............: 0.34%
- Extent Scan Fragmentation ...............: 81.08%
- Avg. Bytes Free per Page................: 779.5
- Avg. Page Density (full)................: 90.37%
DBCC SHOWCONTIG scanning 'Location' table...
Table: 'Location' (501576825); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 285
- Extents Scanned.......................: 36
- Extent Switches.......................: 35
- Avg. Pages per Extent..................: 7.9
- Scan Density [Best Count:Actual Count]......: 100.00% [36:36]
- Logical Scan Fragmentation ..............: 0.35%
- Extent Scan Fragmentation ...............: 5.56%
- Avg. Bytes Free per Page................: 786.2
- Avg. Page Density (full)................: 90.29%
DBCC SHOWCONTIG scanning 'Carrier' table...
Table: 'Carrier' (580913141); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 232
- Extents Scanned.......................: 34
- Extent Switches.......................: 33
- Avg. Pages per Extent..................: 6.8
- Scan Density [Best Count:Actual Count]......: 85.29% [29:34]
- Extent Scan Fragmentation ...............: 94.12%
- Avg. Bytes Free per Page................: 1359.3
- Avg. Page Density (full)................: 83.21%
DBCC SHOWCONTIG scanning 'NetController' table...
Table: 'NetController' (581577110); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 3
- Extents Scanned.......................: 3
- Extent Switches.......................: 2
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 33.33% [1:3]
- Logical Scan Fragmentation ..............: 33.33%
- Extent Scan Fragmentation ...............: 33.33%
- Avg. Bytes Free per Page................: 1356.0
- Avg. Page Density (full)................: 83.25%
DBCC SHOWCONTIG scanning 'QCContentDetail' table...
Table: 'QCContentDetail' (596249229); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 8
- Extents Scanned.......................: 6
- Extent Switches.......................: 6
- Avg. Pages per Extent..................: 1.3
- Scan Density [Best Count:Actual Count]......: 14.29% [1:7]
- Logical Scan Fragmentation ..............: 50.00%
- Extent Scan Fragmentation ...............: 66.67%
- Avg. Bytes Free per Page................: 3306.5
- Avg. Page Density (full)................: 59.15%
DBCC SHOWCONTIG scanning 'OrderToCarrier' table...
Table: 'OrderToCarrier' (628913312); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 139
- Extents Scanned.......................: 31
- Extent Switches.......................: 30
- Avg. Pages per Extent..................: 4.5
- Scan Density [Best Count:Actual Count]......: 58.06% [18:31]
- Extent Scan Fragmentation ...............: 96.77%
- Avg. Bytes Free per Page................: 1491.1
- Avg. Page Density (full)................: 81.58%
DBCC SHOWCONTIG scanning 'WaveGroup' table...
Table: 'WaveGroup' (645577338); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7988.0
- Avg. Page Density (full)................: 1.31%
DBCC SHOWCONTIG scanning 'WorkLoadCriteriaDetail' table...
Table: 'WorkLoadCriteriaDetail' (654625375); index ID: 1, database ID:
6
TABLE level scan performed.
- Pages Scanned........................: 9
- Extents Scanned.......................: 2
- Extent Switches.......................: 1
- Avg. Pages per Extent..................: 4.5
- Scan Density [Best Count:Actual Count]......: 100.00% [2:2]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 970.7
- Avg. Page Density (full)................: 88.01%
DBCC SHOWCONTIG scanning 'Products' table...
Table: 'Products' (660913426); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 8056.0
- Avg. Page Density (full)................: 0.47%
DBCC SHOWCONTIG scanning 'CloseToteData' table...
Table: 'CloseToteData' (691025743); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 17307
- Extents Scanned.......................: 2167
- Extent Switches.......................: 2166
- Avg. Pages per Extent..................: 8.0
- Scan Density [Best Count:Actual Count]......: 99.86% [2164:2167]
- Extent Scan Fragmentation ...............: 18.00%
- Avg. Bytes Free per Page................: 356.5
- Avg. Page Density (full)................: 95.60%
DBCC SHOWCONTIG scanning 'OrderState' table...
Table: 'OrderState' (692913540); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7561.0
- Avg. Page Density (full)................: 6.59%
DBCC SHOWCONTIG scanning 'Wave' table...
Table: 'Wave' (709577566); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 4796.0
- Avg. Page Density (full)................: 40.75%
DBCC SHOWCONTIG scanning 'LNG' table...
Table: 'LNG' (715149593); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 25
- Extents Scanned.......................: 4
- Extent Switches.......................: 3
- Avg. Pages per Extent..................: 6.3
- Scan Density [Best Count:Actual Count]......: 100.00% [4:4]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 916.6
- Avg. Page Density (full)................: 88.68%
DBCC SHOWCONTIG scanning 'WaveState' table...
Table: 'WaveState' (724913654); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7659.0
- Avg. Page Density (full)................: 5.37%
DBCC SHOWCONTIG scanning 'PCS_Object' table...
Table: 'PCS_Object' (747149707); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 905.0
- Avg. Page Density (full)................: 88.82%
DBCC SHOWCONTIG scanning 'WaveByProduct' table...
Table: 'WaveByProduct' (756913768); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 8
- Extents Scanned.......................: 5
- Extent Switches.......................: 4
- Avg. Pages per Extent..................: 1.6
- Scan Density [Best Count:Actual Count]......: 20.00% [1:5]
- Extent Scan Fragmentation ...............: 80.00%
- Avg. Bytes Free per Page................: 7734.6
- Avg. Page Density (full)................: 4.44%
DBCC SHOWCONTIG scanning 'LineItem' table...
Table: 'LineItem' (762902235); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 5894
- Extents Scanned.......................: 745
- Extent Switches.......................: 744
- Avg. Pages per Extent..................: 7.9
- Scan Density [Best Count:Actual Count]......: 98.93% [737:745]
- Extent Scan Fragmentation ...............: 89.13%
- Avg. Bytes Free per Page................: 1303.0
- Avg. Page Density (full)................: 83.90%
DBCC SHOWCONTIG scanning 'PCS_User' table...
Table: 'PCS_User' (779149821); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 3
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 3.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 1251.7
- Avg. Page Density (full)................: 84.54%
DBCC SHOWCONTIG scanning 'Wave' table...
Table: 'Wave' (788913882); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 8
- Extents Scanned.......................: 7
- Extent Switches.......................: 6
- Avg. Pages per Extent..................: 1.1
- Scan Density [Best Count:Actual Count]......: 14.29% [1:7]
- Extent Scan Fragmentation ...............: 57.14%
- Avg. Bytes Free per Page................: 7723.8
- Avg. Page Density (full)................: 4.57%
DBCC SHOWCONTIG scanning 'PDSynchronize' table...
Table: 'PDSynchronize' (794902349); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 3
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 3.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 66.67%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 3770.7
- Avg. Page Density (full)................: 53.41%
DBCC SHOWCONTIG scanning 'PCS_PermissionGroup' table...
Table: 'PCS_PermissionGroup' (811149935); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7319.0
- Avg. Page Density (full)................: 9.57%
DBCC SHOWCONTIG scanning 'Order' table...
Table: 'Order' (836914053); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 364
- Extents Scanned.......................: 55
- Extent Switches.......................: 54
- Avg. Pages per Extent..................: 6.6
- Scan Density [Best Count:Actual Count]......: 83.64% [46:55]
- Extent Scan Fragmentation ...............: 98.18%
- Avg. Bytes Free per Page................: 1263.0
- Avg. Page Density (full)................: 84.40%
DBCC SHOWCONTIG scanning 'Task' table...
Table: 'Task' (837578022); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 296
- Extents Scanned.......................: 42
- Extent Switches.......................: 43
- Avg. Pages per Extent..................: 7.0
- Scan Density [Best Count:Actual Count]......: 84.09% [37:44]
- Logical Scan Fragmentation ..............: 0.68%
- Extent Scan Fragmentation ...............: 64.29%
- Avg. Bytes Free per Page................: 843.2
- Avg. Page Density (full)................: 89.58%
DBCC SHOWCONTIG scanning 'PCS_Component' table...
Table: 'PCS_Component' (843150049); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 5189.0
- Avg. Page Density (full)................: 35.89%
DBCC SHOWCONTIG scanning 'QCEventLog' table...
Table: 'QCEventLog' (843918128); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 3603
- Extents Scanned.......................: 465
- Extent Switches.......................: 464
- Avg. Pages per Extent..................: 7.7
- Scan Density [Best Count:Actual Count]......: 96.99% [451:465]
- Extent Scan Fragmentation ...............: 36.99%
- Avg. Bytes Free per Page................: 575.1
- Avg. Page Density (full)................: 92.89%
DBCC SHOWCONTIG scanning 'OrderLine' table...
Table: 'OrderLine' (884914224); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 6298
- Extents Scanned.......................: 798
- Extent Switches.......................: 797
- Avg. Pages per Extent..................: 7.9
- Scan Density [Best Count:Actual Count]......: 98.75% [788:798]
- Extent Scan Fragmentation ...............: 98.37%
- Avg. Bytes Free per Page................: 255.3
- Avg. Page Density (full)................: 96.85%
DBCC SHOWCONTIG scanning 'PCS_PermissionGroupHasPL1' table...
Table: 'PCS_PermissionGroupHasPL1' (891150220); index ID: 1, database
ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 2068.0
- Avg. Page Density (full)................: 74.45%
DBCC SHOWCONTIG scanning 'QCErrors' table...
Table: 'QCErrors' (923918413); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 10
- Extents Scanned.......................: 2
- Extent Switches.......................: 1
- Avg. Pages per Extent..................: 5.0
- Scan Density [Best Count:Actual Count]......: 100.00% [2:2]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 848.3
- Avg. Page Density (full)................: 89.52%
DBCC SHOWCONTIG scanning 'StateTransitionTimes' table...
Table: 'StateTransitionTimes' (932914395); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 590
- Extents Scanned.......................: 100
- Extent Switches.......................: 99
- Avg. Pages per Extent..................: 5.9
- Scan Density [Best Count:Actual Count]......: 74.00% [74:100]
- Extent Scan Fragmentation ...............: 91.00%
- Avg. Bytes Free per Page................: 599.8
- Avg. Page Density (full)................: 92.59%
DBCC SHOWCONTIG scanning 'PCS_UserInPermissionGroup' table...
Table: 'PCS_UserInPermissionGroup' (955150448); index ID: 1, database
ID: 6
TABLE level scan performed.
- Pages Scanned........................: 3
- Extents Scanned.......................: 3
- Extent Switches.......................: 2
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 33.33% [1:3]
- Logical Scan Fragmentation ..............: 33.33%
- Extent Scan Fragmentation ...............: 66.67%
- Avg. Bytes Free per Page................: 869.0
- Avg. Page Density (full)................: 89.26%
DBCC SHOWCONTIG scanning 'PickMission' table...
Table: 'PickMission' (964914509); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 3950
- Extents Scanned.......................: 499
- Extent Switches.......................: 498
- Avg. Pages per Extent..................: 7.9
- Scan Density [Best Count:Actual Count]......: 99.00% [494:499]
- Extent Scan Fragmentation ...............: 99.20%
- Avg. Bytes Free per Page................: 279.3
- Avg. Page Density (full)................: 96.55%
DBCC SHOWCONTIG scanning 'Mission' table...
Table: 'Mission' (965578478); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 346
- Extents Scanned.......................: 52
- Extent Switches.......................: 53
- Avg. Pages per Extent..................: 6.7
- Scan Density [Best Count:Actual Count]......: 81.48% [44:54]
- Logical Scan Fragmentation ..............: 1.16%
- Extent Scan Fragmentation ...............: 82.69%
- Avg. Bytes Free per Page................: 876.8
- Avg. Page Density (full)................: 89.17%
DBCC SHOWCONTIG scanning 'QCMasterList' table...
Table: 'QCMasterList' (1003918698); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 984
- Extents Scanned.......................: 128
- Extent Switches.......................: 133
- Avg. Pages per Extent..................: 7.7
- Scan Density [Best Count:Actual Count]......: 91.79% [123:134]
- Logical Scan Fragmentation ..............: 1.12%
- Extent Scan Fragmentation ...............: 64.06%
- Avg. Bytes Free per Page................: 753.2
- Avg. Page Density (full)................: 90.69%
DBCC SHOWCONTIG scanning 'PCS_Client' table...
Table: 'PCS_Client' (1019150676); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7427.0
- Avg. Page Density (full)................: 8.24%
DBCC SHOWCONTIG scanning 'PCS_ClientRestriction' table...
Table: 'PCS_ClientRestriction' (1051150790); index ID: 1, database ID:
6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7780.0
- Avg. Page Density (full)................: 3.88%
DBCC SHOWCONTIG scanning 'PickMissionComplete' table...
Table: 'PickMissionComplete' (1060914851); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1661
- Extents Scanned.......................: 461
- Extent Switches.......................: 460
- Avg. Pages per Extent..................: 3.6
- Scan Density [Best Count:Actual Count]......: 45.12% [208:461]
- Extent Scan Fragmentation ...............: 66.81%
- Avg. Bytes Free per Page................: 2926.2
- Avg. Page Density (full)................: 63.85%
DBCC SHOWCONTIG scanning 'UISCFG_Band' table...
Table: 'UISCFG_Band' (1083150904); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 6640.0
- Avg. Page Density (full)................: 17.96%
DBCC SHOWCONTIG scanning 'CurrentActivity' table...
Table: 'CurrentActivity' (1093578934); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 743.0
- Avg. Page Density (full)................: 90.82%
DBCC SHOWCONTIG scanning 'UISCFG_ComponentEntry' table...
Table: 'UISCFG_ComponentEntry' (1115151018); index ID: 1, database ID:
6
TABLE level scan performed.
- Pages Scanned........................: 2
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 2.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 816.0
- Avg. Page Density (full)................: 89.92%
DBCC SHOWCONTIG scanning 'Configuration' table...
Table: 'Configuration' (1156915193); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7690.0
- Avg. Page Density (full)................: 4.99%
DBCC SHOWCONTIG scanning 'UISCFG_CE_on_Band' table...
Table: 'UISCFG_CE_on_Band' (1163151189); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 4881.0
- Avg. Page Density (full)................: 39.70%
DBCC SHOWCONTIG scanning 'UISCFG_Treeview' table...
Table: 'UISCFG_Treeview' (1227151417); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 3117.0
- Avg. Page Density (full)................: 61.49%
DBCC SHOWCONTIG scanning 'UISCFG_Events' table...
Table: 'UISCFG_Events' (1307151702); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 8051.0
- Avg. Page Density (full)................: 0.53%
DBCC SHOWCONTIG scanning 'IAS_AutoInteraction' table...
Table: 'IAS_AutoInteraction' (1323151759); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 2797.0
- Avg. Page Density (full)................: 65.44%
DBCC SHOWCONTIG scanning 'WorkLoadRollup' table...
Table: 'WorkLoadRollup' (1332199796); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 2370
- Extents Scanned.......................: 298
- Extent Switches.......................: 297
- Avg. Pages per Extent..................: 8.0
- Scan Density [Best Count:Actual Count]......: 99.66% [297:298]
- Logical Scan Fragmentation ..............: 9.66%
- Extent Scan Fragmentation ...............: 61.07%
- Avg. Bytes Free per Page................: 696.5
- Avg. Page Density (full)................: 91.39%
DBCC SHOWCONTIG scanning 'MissionDetail' table...
Table: 'MissionDetail' (1349579846); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1494
- Extents Scanned.......................: 189
- Extent Switches.......................: 855
- Avg. Pages per Extent..................: 7.9
- Scan Density [Best Count:Actual Count]......: 21.85% [187:856]
- Logical Scan Fragmentation ..............: 27.58%
- Extent Scan Fragmentation ...............: 89.42%
- Avg. Bytes Free per Page................: 4327.5
- Avg. Page Density (full)................: 46.54%
DBCC SHOWCONTIG scanning 'UISCFG_SystemParameters' table...
Table: 'UISCFG_SystemParameters' (1355151873); index ID: 1, database
ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7984.0
- Avg. Page Density (full)................: 1.36%
DBCC SHOWCONTIG scanning 'UISCFG_ProductInfo' table...
Table: 'UISCFG_ProductInfo' (1387151987); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 8048.0
- Avg. Page Density (full)................: 0.57%
DBCC SHOWCONTIG scanning 'UISCFG_UserPreferences' table...
Table: 'UISCFG_UserPreferences' (1419152101); index ID: 1, database ID:
6
TABLE level scan performed.
- Pages Scanned........................: 3
- Extents Scanned.......................: 3
- Extent Switches.......................: 2
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 33.33% [1:3]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 66.67%
- Avg. Bytes Free per Page................: 1943.7
- Avg. Page Density (full)................: 75.99%
DBCC SHOWCONTIG scanning 'dtproperties' table...
Table: 'dtproperties' (1451152215); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7567.0
- Avg. Page Density (full)................: 6.51%
DBCC SHOWCONTIG scanning 'Configuration' table...
Table: 'Configuration' (1573580644); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7290.0
- Avg. Page Density (full)................: 9.93%
DBCC SHOWCONTIG scanning 'Instruction' table...
Table: 'Instruction' (1605580758); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 4248.0
- Avg. Page Density (full)................: 47.52%
DBCC SHOWCONTIG scanning 'Message' table...
Table: 'Message' (1669580986); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 2
- Extents Scanned.......................: 2
- Extent Switches.......................: 1
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 50.00% [1:2]
- Logical Scan Fragmentation ..............: 50.00%
- Extent Scan Fragmentation ...............: 50.00%
- Avg. Bytes Free per Page................: 3633.0
- Avg. Page Density (full)................: 55.11%
DBCC SHOWCONTIG scanning 'SequenceNumbers' table...
Table: 'SequenceNumbers' (1765581328); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 6080.0
- Avg. Page Density (full)................: 24.88%
DBCC SHOWCONTIG scanning '_bufferlog' table...
Table: '_bufferlog' (1807306194); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 212
- Extents Scanned.......................: 31
- Extent Switches.......................: 30
- Avg. Pages per Extent..................: 6.8
- Scan Density [Best Count:Actual Count]......: 87.10% [27:31]
- Extent Scan Fragmentation ...............: 58.06%
- Avg. Bytes Free per Page................: 331.4
- Avg. Page Density (full)................: 95.91%
DBCC SHOWCONTIG scanning 'Technology' table...
Table: 'Technology' (1877581727); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7983.0
- Avg. Page Density (full)................: 1.37%
DBCC SHOWCONTIG scanning 'PostImportMap' table...
Table: 'PostImportMap' (1925581898); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7818.0
- Avg. Page Density (full)................: 3.41%
DBCC SHOWCONTIG scanning 'ImportErrors' table...
Table: 'ImportErrors' (1941581955); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7992.0
- Avg. Page Density (full)................: 1.26%
DBCC SHOWCONTIG scanning 'System' table...
Table: 'System' (2057058364); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 8077.0
- Avg. Page Density (full)................: 0.21%
DBCC SHOWCONTIG scanning 'WorkArea' table...
Table: 'WorkArea' (2089058478); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7970.0
- Avg. Page Density (full)................: 1.53%
DBCC SHOWCONTIG scanning 'ImportMap' table...
Table: 'ImportMap' (2112726579); index ID: 0, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7742.0
- Avg. Page Density (full)................: 4.35%
DBCC SHOWCONTIG scanning 'QCCurrentActivity' table...
Table: 'QCCurrentActivity' (2116254644); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 100.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 7940.0
- Avg. Page Density (full)................: 1.90%
DBCC SHOWCONTIG scanning 'Module' table...
Table: 'Module' (2137058649); index ID: 1, database ID: 6
TABLE level scan performed.
- Pages Scanned........................: 1
- Extents Scanned.......................: 1
- Extent Switches.......................: 0
- Avg. Pages per Extent..................: 1.0
- Scan Density [Best Count:Actual Count]......: 100.00% [1:1]
- Logical Scan Fragmentation ..............: 0.00%
- Extent Scan Fragmentation ...............: 0.00%
- Avg. Bytes Free per Page................: 6848.0
- Avg. Page Density (full)................: 15.39%
DBCC execution completed. If DBCC printed error messages, contact your
system administrator.
Tracy McKibben wrote:
> Jayme wrote:
> > We have been running SQL Server 2000 on a production machine for years.
> > Within the last 6 months, we have noticed a performance problem. The
> > system will suddenly slow to a crawl. We run DBCC Reindex for all of
> > the tables in the our database, and things go back to normal - running
> > very quickly. We are currently having to do this multiple times a day.
> > We have verified the indexes are getting fragmented by using the DBCC
> > showcontig. What will cause the indexes to get fragmented so quickly?
> > How do we prevent this from happening?
> >
> > Any help would greatly be appreciated.
> > Thank you!
> > Jayme
> >
> Are you sure you're seeing index fragmentation, and not disk
> fragmentation? Post the output of your DBCC command..|||Jayme wrote:
> This is the dbcc output before the reindex is done:
>
Ahh yes, I see lots of high "Extent Scan Fragmentation" values,
indicating external fragmentation, i.e. DISK fragmentation:
http://www.sql-server-performance.com/rd_index_fragmentation.asp
Some things you can do:
1. Never shrink the database. It's going to grow again, and repeated
shrink/growth operations will cause disk fragmentation.
2. Size the database properly to accommodate your needs to several
months, to avoid auto-growth
3. After sizing the DB properly, schedule an outage where you can shut
down SQL Server and run a full disk defrag. Copy the database files
(mdf and ldf) to another volume, use the Windows defragger to defrag the
drive, then copy the data files back, one at a time.
4. Now that the external fragmentation has been resolved, rebuild the
indexes.|||Jayme wrote:
> OK, I defrag'd the disk. Rebuilt the indexes. It still looks like
> there is some extent fragmentation for some of the tables. The
> database is set up in 3 files, one for data, one for index, one for
> log. Could that cause it to show more extent fragmentation?
>
Having the indexes in a seperate file should not cause more
fragmentation, assuming the file is sized properly and is not
auto-growing or shrinking.
I have to ask, did you stop SQL Server before running your defrag? You
can't defrag the database files while SQL is running.|||Yes I stopped SQL Server.
Tracy McKibben wrote:
> Jayme wrote:
> > OK, I defrag'd the disk. Rebuilt the indexes. It still looks like
> > there is some extent fragmentation for some of the tables. The
> > database is set up in 3 files, one for data, one for index, one for
> > log. Could that cause it to show more extent fragmentation?
> >
> Having the indexes in a seperate file should not cause more
> fragmentation, assuming the file is sized properly and is not
> auto-growing or shrinking.
> I have to ask, did you stop SQL Server before running your defrag? You
> can't defrag the database files while SQL is running.|||Jayme wrote:
> Yes I stopped SQL Server.
>
You said you have seperate files for data, indexes, and logs. Is it
possible that these few indexes span multiple files, i.e. they share
space in your data file and the index file? Certain values reported by
SHOWCONTIG are unreliable in such cases.|||It is possible. We try to keep all the indexes in one file, but it
could happen.
Tracy McKibben wrote:
> Jayme wrote:
> > Yes I stopped SQL Server.
> >
> >
> You said you have seperate files for data, indexes, and logs. Is it
> possible that these few indexes span multiple files, i.e. they share
> space in your data file and the index file? Certain values reported by
> SHOWCONTIG are unreliable in such cases.|||Don't even bother about fragmentation unless the index has at least 1000
pages otherwise you're hardly going to notice a difference. form your
earlier output, none of your indexes have more than about 50 pages. The only
larger table you have is 'LineItem' and that's a heap so fragmentation is
irrelevant.
Why are you concerned about fragmentation?
--
Paul Randal
Lead Program Manager, Microsoft SQL Server Storage Engine
http://blogs.msdn.com/sqlserverstorageengine/default.aspx
This posting is provided "AS IS" with no warranties, and confers no rights.
"Jayme" <jayloub@.comcast.net> wrote in message
news:1151071190.962959.17680@.i40g2000cwc.googlegroups.com...
> It is possible. We try to keep all the indexes in one file, but it
> could happen.
> Tracy McKibben wrote:
>> Jayme wrote:
>> > Yes I stopped SQL Server.
>> >
>> >
>> You said you have seperate files for data, indexes, and logs. Is it
>> possible that these few indexes span multiple files, i.e. they share
>> space in your data file and the index file? Certain values reported by
>> SHOWCONTIG are unreliable in such cases.
>|||It seems to have something to do with fragmentation of the indexes.
When we reindex the tables - the slowness immediately goes away.
What else could be happening that a reindex would fix?
Paul S Randal [MS] wrote:
> Don't even bother about fragmentation unless the index has at least 1000
> pages otherwise you're hardly going to notice a difference. form your
> earlier output, none of your indexes have more than about 50 pages. The only
> larger table you have is 'LineItem' and that's a heap so fragmentation is
> irrelevant.
> Why are you concerned about fragmentation?
> --
> Paul Randal
> Lead Program Manager, Microsoft SQL Server Storage Engine
> http://blogs.msdn.com/sqlserverstorageengine/default.aspx
> This posting is provided "AS IS" with no warranties, and confers no rights.
> "Jayme" <jayloub@.comcast.net> wrote in message
> news:1151071190.962959.17680@.i40g2000cwc.googlegroups.com...
> > It is possible. We try to keep all the indexes in one file, but it
> > could happen.
> >
> > Tracy McKibben wrote:
> >> Jayme wrote:
> >> > Yes I stopped SQL Server.
> >> >
> >> >
> >>
> >> You said you have seperate files for data, indexes, and logs. Is it
> >> possible that these few indexes span multiple files, i.e. they share
> >> space in your data file and the index file? Certain values reported by
> >> SHOWCONTIG are unreliable in such cases.
> >