Possible Corrupt Table
Jul 20, 2005
I have 1 table in a 200+ table database
The database is Merge Synchornised and has been working fine for 2
years +
The same database is at several customers and the DB is fully
relational
I have a table which creates client timeout errors whenever an insert
or update is issued
The table has foreign keys and primary key and links parent to
children tables so if I need to recreate the table I will also need
advice on the best way to do this to keep the integrity of the
database
I wasn't sure the table was the problem so I deleted all publications
and disbled the server from being a distributor
I cannot find any error logs with any clues so can only assume the is
the first corruption I have ever seen on SQL 2K (SP3)
I have defragmented the drive, reindexed the tables, shrunk databases
(Plenty of space available)
Please advise any course of action you think may help me.
Regards Paul Goldney
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Aug 24, 2006
I have a table that I can't read any data.
It hangs up when I try to drop it as well.
So, what are my options here? Secondly, what has caused this?
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May 30, 2001
Hi,
One of my tables got corrupt and it is not possible to bring down the Database into Single user mode to run the dbcc to repair it. Is there any other way that I could correct.
Thanks
Cynthia
Msg 8978, Sev 16: Table Corrupt: Object ID 901630305, index ID 8. Page (5:572498) is missing a reference from previous page (8:98777). Possible chain linkage problem. [SQLSTATE 42000]
Msg 8928, Sev 16: Object ID 901630305, index ID 8: Page (8:98777) could not be processed. See other errors for details. [SQLSTATE 42000]
Msg 8976, Sev 16: Table Corrupt: Object ID 901630305, index ID 8. Page (8:98777) not allocated or corrupt. Parent (5:335525) and previous (5:572497) refer to it. [SQLSTATE 42000]
Msg 8944, Sev 16: Table Corrupt: Object ID 901630305, index ID 8, page (8:98777), row 38. Test (VarColOffsets + (int)(sizeof (class VarColOffset) * nVarCols) <= (nextRec - pRec)) failed. Values are 525 and 26. [SQLSTATE 42000]
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May 23, 2000
What is the best approach to repairing a corrupt table? I received the following error from last night's maintenance. (SQL 6.5)
Thanks, Kevin
[2] Check Data Allocation...
WARNING: Database AHSDATA is currently being used by 1 user(s).
This may cause spurious problems to be reported.
The following errors were found:
Table Corrupt: object id does not match between extent in allocation page and Sysindexes; check the following extent: alloc pg#=247552 extent#=247720 object id on extent=-1175060352 (object name = -1175060352) object id in Sysindexes=1329491865 (object name = PS_AHS_RETIRE_2000)
Table Corrupt: Index id on extent should be 0; check the following page and ids: alloc page=247552 extent=247720 index id on extent=200
Table Corrupt: Extent structures are linked incorrectly; check the following extent: alloc pg#=247552 extent#=247720 previous extent# on this extent=-1 previous extent should be=247712
Table Corrupt: Object id wrong; tables: alloc page 247552 extent id=247720 l page#=247720 objid in ext=-1175060352 (name = -1175060352) objid in page=1329491865 (name = PS_AHS_RETIRE_2000)objid in sysindexes=1329491865 (name = PS_AHS_RETIRE_2000)
** Execution Time: 0 hrs, 10 mins, 50 secs **
[3] Update Statistics...
[Microsoft SQL-DMO] Error 605: [SQL Server] Attempt to fetch logical page 247792 in database 'AHSDATA' belongs to object 'PSPNLDEFN', not to object 'PS_AHS_RETIRE_2000'.
[Microsoft SQL-DMO] Error 10025: [DB-Library] Possible network error: Write to SQL Server Failed.
** Execution Time: 0 hrs, 5 mins, 11 secs **
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Jan 17, 2000
I have a problem for dropping a table from my database and I got the error message: ""Extent chain for object 736005653 is not correctly linked." The problem indicates table corrupt on the database from DBCC checknewalloc. Instead of reloading the database from a dump, do you have anyway to repair the damage table or drop it.
TIA,
Stella Liu
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Dec 25, 1999
I am running SQL server 6.5 with sp3 on NT4.0 with sp6. I ran DBCC checkalloc on one of my database and got the following message.
Table Corrupt: Extent structures are linked incorrectly; check the following extent: alloc pg#=6815488 extent#=6815736 previous extent# on this extent=8625424 previous extent should be=6815728
I have previouly ran dbcc checkdb on the database and I was not able to correct the problem. Please help!
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Mar 12, 2001
I run a daily maintaince job and it fails.But when i go through the error log. i get
this eror "'Table Corrupt: Extent id 30464 on allocation pg# 30464 has objid 732178004 and used bit on, but reference bit off"
how do i get the table name fron sysobjects as i have had no luck when i do a simple select query to get the details i need
Getting the name would make it easier to solve the problem
thanks
safac
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Jan 2, 2001
I have small table that has been corrupted.
I'm getting the following error when running a simple select statement:
"could not open FCB for invalid file ID 0 in database 'data_base_name'.
Table or database may be corrupt. connection broken."
I have already created a new table, but I have been unsuccessful at removing the corrupted table. Does anyone know the steps to go about removing this table? And, if anyone has seen this type of error before, why did it occur?
Is it a bug with microsoft SQL7? Any info would be greatly appreciated.
Thanks in advance
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Aug 7, 2000
Hi Everybody,Can any one tell me how to solve the error 8908(Table Corrupt error). Iam getting this problem every 6 weeks or so. Chain linkage mismatch problem.Help in this regard is highly appreciated.Thanks in advance.
Monu.
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Feb 25, 2000
Folks,
I am running SQL 7.0 & SMS 2.0. I get the following message while running DBCC CHECKCATALOG on my SMS database.
"Table Corrupt: Object ID 322100188 (object 'Summarizer_ComponentTallys') does not match between 'SYSREFERENCES' and 'SYSCOLUMNS.'."
This prevents my nightly tape backup as well.. Veritas (Backupexec) nightly as well. Is there a fix for this? This has been happening since we installed SMS 2.0 sometime in December.
Thanks.
Sam
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Jan 14, 2000
Hi folks,
on one of my SQL7.0 Servers I sometimes encounter the following message in the errorlog:
Table Corrupt: Object ID 0, index ID 0, page ID (1:999816). The PageId in the page header = (0:0).
It seems to me that this message is put for each db that is delt with in the maintenance plan, because it is the same number (16 times in my case)
It occurs during the index reorganisation phase of my maintenance plan. Before this happens there is a DBCC checkdb and DBCC newalloc on several DBs with no errors.
Anything I have to check or to fix, or can I ignore such zero-messages?
Thank you in advance
Karsten
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Aug 11, 1999
I have a corrupt syscolumns table and have no good backups :(
I get message 7930, Level 16, State 1.
Table Corrupt; keys in left child is not less than the parent key; check left child page 15491....
The end result is the appearance that a column is missing from one of my tables. In otherwords, I know the table is supposed to have col1, but when I select data from the table, col1 does not show up....dbcc checkdb gave me the error above.
thanks in advance!
Dean
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Feb 10, 1999
I recieve a corrupt tempdb table when I run dbcc newalloc. Is there anything I can do other then restore from a backup.
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Mar 11, 1999
Hi!
I had following problem:
dbcc checktable('syslogs')
Checking syslogs
Msg 2503, Level 16, State 1
Table Corrupt: Page linkage is not consistent; check the following pages: (current page#=438165; page# pointing to this page=438166; previous page# indicated in this page=0)
DBCC execution completed. If DBCC printed error messages, see your System Administrator.
dbcc newalloc(kmn,NOINDEX)
************************************************** *************
TABLE: syslogsOBJID = 8
INDID=0 FIRST=420675 ROOT=460295 DPAGES=57143SORT=0
Msg 2525, Level 16, State 1
Table Corrupt: Object id wrong; tables: alloc page 420608 extent id=420672 l page#=420675 objid in ext=0 (name = 0) objid in page=8 (name = syslogs)objid in sysindexes=8 (name = syslogs)
Page linkage failed for INDID 0; Processed 1 pages;
Data level: 0. 0 Data Pages in 1 extents.
TOTAL # of extents = 0
************************************************** *************
Restoring a database from a backup copy is impossible.
Alexandr.
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Jan 12, 2007
Hi there!
I need to execute: ALTER DATABASE MyDB SET SINGLE_USER
which always returns Timeout Expired.
I can't execute dbcc checktable (MyTable, REPAIR_ALLOW_DATA_LOSS) until the database is in single mode.
How else can I set single-mode or can I bypass that requirement?
Thanks!
Mike
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Jul 16, 1999
I have SQL Server 6.5 I was running DBCC CHECKALLOC (db_name) and I got corrupt table error 2502. Please can anyone help me out as to what I do to repair that corrupt table? I wait for your help. I shall remain.
Regards,
E. Warden
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Jun 1, 2001
I have the following error on a table. I have rebuilt the index with the sorted_DATA_reorg option but no sucess any ideas!!?
Table Corrupt: Keys in data page should be in ascending order; check page number 13843
Server: Msg 2511, Level 16, State 1, Line 1
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Jul 4, 2001
Since a user increased the size of a 5.5Gb database by 500Mb, the following error is being reported when they attempt to use the Recalculate button:
Error 2541:[SQL Server]Table Corrupt: object id does not match between extent in allocation pages and Sysindexes; check the following extent alloc pg#=195072 extent#=195320 object id on extent=0 (object name = 0)object id in Sysindexes=471787584 (object name = C0122402RT0)
Other than this the database is behaving normally so far. How do I solve this problem?
thanks
Derek
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Nov 1, 2006
I have database currupt some table , I want to delete / drop table
Example
1. databaseTest Have --> table customer , table payment , table sales
2. table Payment can't select / drop / insert /rename (fail) show message error below
ERROR (Row 0);
Microsoft SQL Server 2000 Windows CE Edition:
"The database file is corrupted. (Database name: "" )"
3.How to drop table Payment (I want to drop and create table again and insert data to new table ) Or How to solution for repare table Payment
Thank You
Suwimol
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Dec 1, 1999
I have a table which I am unable to drop, remove indexes from, and when I select the database from the EM and click on Recalculate get the following error:
When attempting to do a Recalculate from the EM I get: Error 2541 (SQL Server) Table Corrupt object id does not match between extent in allocation page a d sysindexes; check the following extent; alloc pg# 589050 extent# 589096 object id on extent=0 object name=0 object id in sysindexes=1420532094 (object name=MifDEtailOct)
When attempting to remove an index from the table I get: Error 2504 (SQL Server) Table Corrupt index id in alloc page does not match the index id in sysindexes (alloc page#=721664; extentid=721704; index id in alloc=5;index id in sysindexes = 4
When attempting to drop the table from the EM it disappears then when I do a refresh it's back again.
I run a checkdb on the database once a week, but that hasn't resolved the problem.
I also ran the sp_fixindex as outlined in the faq with no relief.
This initially happened on one table and now I'm getting the same error on a second table. I have removed the data from both tables, but can't seem to get rid of them.
These tables originally has a couple of million records in them so they were rather large before I moved the data to a new table.
Truncate also didn't work when I was attempting to clear the table. I had to create an sp to delete a few hundred thousand records at a time.
I would appreciate any suggestions.
Rick Poland
rpolan1@tandy.com
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Oct 19, 2001
Since a user increased the size of a 5.5Gb database by 500Mb, the following error is being reported when they attempt to use the Recalculate button (I think they mave for some reason have recreated a table that they thought was missing, but I haven't been given the full details yet!):
Error 2541:[SQL Server]Table Corrupt: object id does not match between extent in allocation pages and Sysindexes; check the following extent alloc pg#=195072 extent#=195320 object id on extent=0 (object name = 0)object id in Sysindexes=471787584 (object name = C0122402RT0)
Other than this the database is behaving normally so far. How do I solve this problem (i'm hoping to get this sorted soon if anyone can help)?
thanks
Derek
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May 16, 2008
I have SQL 2005 with sp1 (can't get sp2 to install yet), with a failover cluster (that works, but hasn't needed to be used in awhile), and the data resides on a, new, 1TB SAN array.
We were not aware one of our tables were corrupt until the last rotation of our backup included the corrupt table. So restoring isn't an option. rebuilding the table is a last resort. I would like to understand how this happened, and how to prevent it.
The error when trying to do anything to the table, read, edit, drop, etc:
Attempt to fetch logical page (1:27232) in database 23 failed. It belongs to allocation unit 72057594049069056 not to 281474980642816.
the first allocation unit # is sysobjvalues, and the second is g2_pluginparametermap
the table that the error happens on is g2_Item.
CHECKDB returns this error:
Msg 605, Level 12, State 3, Line 1
Attempt to fetch logical page (1:27232) in database 22 failed. It belongs to allocation unit 72057594049069056 not to 281474980642816.
Msg 8921, Level 16, State 1, Line 1
Check terminated. A failure was detected while collecting facts. Possibly tempdb out of space or a system table is inconsistent. Check previous errors.
(tempdb is only 14megs, the drive has almost 30 gigs of free space. the db in question is only 300 megs)
dbcc page(db,1,27232,1)
returns nothing
I thought for sure I had manually made a backup quite awhile ago when I knew this table was fine. I restored the backup to a new database and am having the same exact problem.
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Oct 12, 2001
I found this script some where on internet..i am not sure what it does and how to i solve the problem because my friend has already run the script and i donno how to get back to the original configuration.
/* this script works on a database that is a copy of pubs. I created this database easily with DTS
This only works on SQL Server 7 databases
*/
/* NOTE: This script will truly corrupt a database. It should not be run on ANY real
database. It is only for simulating corruption for training purposes.
*/
sp_configure allow, 1
go
reconfigure with override
go
update sysindexes set FirstIAM = 1234
where id = OBJECT_ID('roysched')
go
sp_configure allow, 0
go
reconfigure with override
go
How to sovlve the issue after the corrupt is done...how do i modify the info back to original..
Are there any other process or script that i can simulate to corrupt the databse and solutions pertaining to the same..i would like to experiment and then see how it goes and how quickly i can solve...
Thanks,
Jeff
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May 27, 2003
The ldf file of a db was deleted by mistake. This was done whilst the SQL Server Service was still running. The db was not detached cleanly. I ran sp_detach_db on the db and tried re-attaching but got the error message:
"Database [dbname] cannot be opened because some of the files could not be activated".
Subsequently I have tried creating a new db called the same as the old one. Stopping the MSSQL service, copying over the mdf and re-starting the service. The db still comes up as suspect and the error log shows "Device activation error. The physical file name 'D:LogsETERBK_Log.LDF' may be incorrect". I have tried copying over the new ldf to the correct location but the same message appears.
I am not interested in getting the data back but would like to get back the stored procedures. Can anyone help this is urgernt?
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Jul 6, 2006
Have a corrupt SQL database that I am unable to repair using any of the repair options with DBCC CHECKDB. Below is the output from the repair_allow_data_loss option.
I can't seem to figure out how to go about fixing this. Any takers?!
Server: Msg 8946, Level 16, State 12, Line 2
Table error: Allocation page (1:24264) has invalid PFS_PAGE page header values. Type is 0. Check type, object ID and page ID on the page.
Server: Msg 8921, Level 16, State 1, Line 1
CHECKTABLE terminated. A failure was detected while collecting facts. Possibly tempdb out of space or a system table is inconsistent. Check previous errors.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 0, index ID 0, page (1:24264). Test (m_headerVersion == HEADER_7_0) failed. Values are 0 and 1.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 0, index ID 0, page (1:24264). Test ((m_type >=DATA_PAGE && m_type <= UNDOFILE_HEADER_PAGE) || (m_type == UNKNOWN_PAGE && level == BASIC_HEADER)) failed. Values are 0 and 101.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 0, index ID 0, page (1:24264). Test (m_freeData >= PAGEHEADSIZE && m_freeData <= (UINT)PAGESIZE - m_slotCnt * sizeof (Slot)) failed. Values are 0 and 8192.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 0, index ID 0, page (1:24264). Test (m_headerVersion == HEADER_7_0) failed. Values are 0 and 1.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 0, index ID 0, page (1:24264). Test ((m_type >=DATA_PAGE && m_type <= UNDOFILE_HEADER_PAGE) || (m_type == UNKNOWN_PAGE && level == BASIC_HEADER)) failed. Values are 0 and 101.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 0, index ID 0, page (1:24264). Test (m_freeData >= PAGEHEADSIZE && m_freeData <= (UINT)PAGESIZE - m_slotCnt * sizeof (Slot)) failed. Values are 0 and 8192.
Server: Msg 8998, Level 16, State 1, Line 1
Page errors on the GAM, SGAM, or PFS pages do not allow CHECKALLOC to verify database ID 7 pages from (1:24264) to (1:32351). See other errors for cause.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 0, index ID 0, page (1:32352). Test (m_headerVersion == HEADER_7_0) failed. Values are 0 and 1.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 0, index ID 0, page (1:32352). Test ((m_type >=DATA_PAGE && m_type <= UNDOFILE_HEADER_PAGE) || (m_type == UNKNOWN_PAGE && level == BASIC_HEADER)) failed. Values are 0 and 101.
Server: Msg 8939, Level 16, State 1, Line 1
Table error: Object ID 0, index ID 0, page (1:32352). Test (m_freeData >= PAGEHEADSIZE && m_freeData <= (UINT)PAGESIZE - m_slotCnt * sizeof (Slot)) failed. Values are 0 and 8192.
Server: Msg 8998, Level 16, State 1, Line 1
Page errors on the GAM, SGAM, or PFS pages do not allow CHECKALLOC to verify database ID 7 pages from (1:32352) to (1:40439). See other errors for cause.
DBCC results for '8602955'.
The system cannot self repair this error.
The system cannot self repair this error.
The system cannot self repair this error.
The repair level on the DBCC statement caused this repair to be bypassed.
The system cannot self repair this error.
The system cannot self repair this error.
The repair level on the DBCC statement caused this repair to be bypassed.
The system cannot self repair this error.
The system cannot self repair this error.
The system cannot self repair this error.
The repair level on the DBCC statement caused this repair to be bypassed.
CHECKDB found 8 allocation errors and 3 consistency errors not associated with any single object.
DBCC results for 'sysobjects'.
There are 1395 rows in 27 pages for object 'sysobjects'.
CHECKDB found 8 allocation errors and 3 consistency errors in database '8602955'.
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
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Feb 7, 2002
I had installed a third-party software on my server and that corrupted my Master DB. Over the weekend when we bought SQL server down, we could not bring it back up. I had to re-install SQL server and then restore all my databases from the backup. Is there a better way of doing this???
Curiously
Someone who calls himself a DBA
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Jul 23, 2002
Hi everybody,
I have a strange problem with one of the jobs created through a maintenace plan. The idea is that every 2 hours a transaction log backup is created and backups older than 2 days should be removed. This worked for several months without a problem, but suddenly today the job reports failed as status.
I looked into jobhistory but all I got is the following message:
sqlmaint.exe failed. [SQLSTATE 42000] (Error 22029). The step failed.
Strange enough reports the sqllog that the t-log has been backed up succesfully. The files are on disk and I can restore them without a problem.
Any ideas what is going on ???
Tia Markus
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Mar 28, 2001
Hi All,
I am working in a test environment where I need to corrupt a database for test purpose/R&D. After corrupting the database, I ran the DBCC CHECKDB (pubs, repair_fast) and then DBCC CHECKDB (pubs, repair_rebuild) commands. But DBCC is not fixing the corrupt database.
My question is why DBCC is not fixing the corrupted Database? Is that a limitation of DBCC or is there any other way/command or tool to fix the corrupted database other then restoring from the previously backed up file.
The following are the steps that I followed to corrupt the database:
I used the following script (available in the script section of www.swynk.com) to corrupt the pubs database.
sp_configure allow, 1
go
reconfigure with override
go
update sysindexes set FirstIAM = 1234
where id = OBJECT_ID('roysched')
go
sp_configure allow, 0
go
reconfigure with override
go
Then I did a select * from roysched. I got the error:
Server: Msg 5180, Level 22, State 1, Line 1
Could not open FCB for invalid file ID 53764 in database 'pubs'. Table or database may be corrupted.
The pubs database got corrupted. Now, I want to fix this error. So I set the pubs database to single user mode and ran the DBCC command :
DBCC CHECKDB (pubs, repair_fast) that doesn't help so I ran the DBCC CHECKDB (pubs, repair_rebuild) command.
I got big DBCC output. I doesn't seems to fix the pubs database. When I did a select * from roysched again it gave the same corruption error.
I would appreciate any help in this issue.
Thanks
Sri
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Apr 6, 2000
Hi,
I am receiving an Msg 2540 on a database when I perform the DBCCs. It looks like the indexes on this one table got corrupt. I know this because when I perform the DBCCs with the noindex option then I do not get any errors. I tried to drop and recreate the indexes (two indexes - one clustered and one unique) but to no avail. The dbccs continued to produce the error.
If someone has any ideas please respond. This is a prodn problem and so any input would be greatly appreciated.
Thanks again
Kiran
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Sep 14, 1999
I have been having problems with the SQL 7 server when temporary tables are being created, so I ran a DBCC checkdb against tempdb,
and this is what came back. When I try to run the dbcc with repair_allow_data_loss it says the database must be in single user mode.
This option is not allowed in tempdb. So now what? Does any one have any suggestions?
Server: Msg 8999, Level 16, State 1, Line 1
Database tempdb allocation errors prevent further CHECKDB processing.
Server: Msg 8906, Level 16, State 1, Line 1
Page (1:109) in database ID 2 is allocated in the SGAM (1:3) and PFS (1:1), but was not allocated in any IAM. PFS flags 'IAM_PG MIXED_EXT ALLOCATED 0_PCT_FULL'.
Server: Msg 8905, Level 16, State 1, Line 1
Extent (1:1000) in database ID 2 is marked allocated in the GAM, but no SGAM or IAM has allocated it.
Server: Msg 8905, Level 16, State 1, Line 1
Extent (1:1016) in database ID 2 is marked allocated in the GAM, but no SGAM or IAM has allocated it.
DBCC results for 'tempdb'.
CHECKDB found 3 allocation errors and 0 consistency errors not associated with any single object.
CHECKDB found 3 allocation errors and 0 consistency errors in database 'tempdb'.
repair_allow_data_loss is the minimum repair level for the errors found by DBCC CHECKDB (tempdb ).
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
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Apr 12, 1999
This morning no one was able to connect to the SQL server. At the server, the RAID set showed no activity. I could not bring up any applications. When clicking the start button, it would take 5 minutes to get a response. I connected to the server from a different machine and tried to restart the SQL services, without success. I could access the Event Viewer Application log. All entries in the log read "DB-LIBRARY error - SQL Server connection timed out." The SQL error log listed the following error " Lazywriter: LRU list is corrupt, bhead 0xe50040, bnew 0, bold 0x130bb00, stat 0x1004/0, page 0x1e1608, bufno 0, freebufs 5528, freelist 0xf1bfe0
99/04/10 22:22:10.10 spid2 Lazywriter: LRU list is corrupt, bhead 0xe50040, bnew 0, bold 0x130bb00, stat 0x1004/0, page 0x1e1608, bufno 0, freebufs 5498, freelist 0x118274"
What does this error indicate? We have received this error in the past and have upgraded our RAID controller because. This is the first time we have had this error since upgrading the controller a month ago.
Thanks.
Philip Talavera
System Administrator
SVG Distribution
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Apr 28, 1999
After implementing a recommendation to perform dbcc checkalloc before nightly backup, I began getting the error below on msdb. Books Online suggests restoring from a known clean backup. We have only been using SQL Server for a few weeks and it seems that all our backups of msdb have the same problem. Is there any way of correcting this problem?
Msg 2521, Level 16, State 1
Table Corrupt: Page is linked but not allocated; check the following pages and table: alloc page#=3584 extent id=3816 logical page#=3816 object id in extent=8 (object name = syslogs) index id in extent=0
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Jul 11, 2002
Hello!
I'm intrested in all possible ways to corrupt data or log files in SQL server 2000 except of manualy editing them or cutting the comp's power abruptly.
Thank you.
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