IAM page (0:0) is pointed to by the previous pointer of IAM page (

Server: Msg 2576, Level 16, State 1, Line 1
IAM page (0:0) is pointed to by the previous pointer of IAM page (1:867)
object ID 992722589 index ID 0 but was not detected in the scan.
Server: Msg 2577, Level 16, State 1, Line 1
Chain sequence numbers are out of order in IAM chain for object ID
992722589, index ID 0. Page (1:867) sequence number 1 points to page
(1:48122) sequence number 0.
I get this error every time I run DBCC CHECKALLOC(DBName). The page number
is always the same but, the location of the error in the output moves on each
subsequent run. The Object ID does not exist in sysindexes, syscolumns,
sysdepends or sysobjects. I have put the DB in single user mode and run DBCC
CHECKDB(DBNAME, repair_allow_data_loss). It says it cannot repair the DB.
Going to a previous backup is not an option so I am getting ready to bcp all
of the data to a new database. Are there any other options for this?
-Alan-Couple of things...
If the 'ID' column is still unique, then check if its got a unique
constraint on, if not then put it on.
If that doe't work take off the foreign key from all tables referencing the
table which ID is part of and do your CHECKALLOC again.
If that doesn't work then have a look at
http://support.microsoft.com/kb/816084
Peter
"sqlsleuth" wrote:
> Server: Msg 2576, Level 16, State 1, Line 1
> IAM page (0:0) is pointed to by the previous pointer of IAM page (1:867)
> object ID 992722589 index ID 0 but was not detected in the scan.
> Server: Msg 2577, Level 16, State 1, Line 1
> Chain sequence numbers are out of order in IAM chain for object ID
> 992722589, index ID 0. Page (1:867) sequence number 1 points to page
> (1:48122) sequence number 0.
> I get this error every time I run DBCC CHECKALLOC(DBName). The page number
> is always the same but, the location of the error in the output moves on each
> subsequent run. The Object ID does not exist in sysindexes, syscolumns,
> sysdepends or sysobjects. I have put the DB in single user mode and run DBCC
> CHECKDB(DBNAME, repair_allow_data_loss). It says it cannot repair the DB.
> Going to a previous backup is not an option so I am getting ready to bcp all
> of the data to a new database. Are there any other options for this?
> -Alan-|||The Object ID
992722589 does not exist so there is nothing to check. Each time DBCC
CHECKALLOC is run it appears in the results of a different table.
"Peter Nolan" wrote:
> Couple of things...
> If the 'ID' column is still unique, then check if its got a unique
> constraint on, if not then put it on.
> If that doe't work take off the foreign key from all tables referencing the
> table which ID is part of and do your CHECKALLOC again.
> If that doesn't work then have a look at
> http://support.microsoft.com/kb/816084
> Peter
>
>
> "sqlsleuth" wrote:
> > Server: Msg 2576, Level 16, State 1, Line 1
> > IAM page (0:0) is pointed to by the previous pointer of IAM page (1:867)
> > object ID 992722589 index ID 0 but was not detected in the scan.
> > Server: Msg 2577, Level 16, State 1, Line 1
> > Chain sequence numbers are out of order in IAM chain for object ID
> > 992722589, index ID 0. Page (1:867) sequence number 1 points to page
> > (1:48122) sequence number 0.
> >
> > I get this error every time I run DBCC CHECKALLOC(DBName). The page number
> > is always the same but, the location of the error in the output moves on each
> > subsequent run. The Object ID does not exist in sysindexes, syscolumns,
> > sysdepends or sysobjects. I have put the DB in single user mode and run DBCC
> > CHECKDB(DBNAME, repair_allow_data_loss). It says it cannot repair the DB.
> > Going to a previous backup is not an option so I am getting ready to bcp all
> > of the data to a new database. Are there any other options for this?
> >
> > -Alan-|||What about http://support.microsoft.com/kb/816084 ?
Do you have auto statisics turned on ?
Are there any unique constraints in the tables themselves ?
The reason I'm going down this route is that occasionally when bulk loading
stuff I take off primary keys, indexes ect but somehow the system doesn't
register it properly and still thinks there something there, it could be as
part of the sysindexes or the statistics.
When it happened to me I re-established my primary key indexes ect.
You could also try dropping you statistics are re-establishing them.
Anyways thats about all I can help you, good luck and I hope you get a
successful resolution.
Peter
Peter
"sqlsleuth" wrote:
> The Object ID
> 992722589 does not exist so there is nothing to check. Each time DBCC
> CHECKALLOC is run it appears in the results of a different table.
> "Peter Nolan" wrote:
> > Couple of things...
> >
> > If the 'ID' column is still unique, then check if its got a unique
> > constraint on, if not then put it on.
> >
> > If that doe't work take off the foreign key from all tables referencing the
> > table which ID is part of and do your CHECKALLOC again.
> >
> > If that doesn't work then have a look at
> > http://support.microsoft.com/kb/816084
> >
> > Peter
> >
> >
> >
> >
> > "sqlsleuth" wrote:
> >
> > > Server: Msg 2576, Level 16, State 1, Line 1
> > > IAM page (0:0) is pointed to by the previous pointer of IAM page (1:867)
> > > object ID 992722589 index ID 0 but was not detected in the scan.
> > > Server: Msg 2577, Level 16, State 1, Line 1
> > > Chain sequence numbers are out of order in IAM chain for object ID
> > > 992722589, index ID 0. Page (1:867) sequence number 1 points to page
> > > (1:48122) sequence number 0.
> > >
> > > I get this error every time I run DBCC CHECKALLOC(DBName). The page number
> > > is always the same but, the location of the error in the output moves on each
> > > subsequent run. The Object ID does not exist in sysindexes, syscolumns,
> > > sysdepends or sysobjects. I have put the DB in single user mode and run DBCC
> > > CHECKDB(DBNAME, repair_allow_data_loss). It says it cannot repair the DB.
> > > Going to a previous backup is not an option so I am getting ready to bcp all
> > > of the data to a new database. Are there any other options for this?
> > >
> > > -Alan-|||Auto Statistics is on and there are a large number of unique constraints in
the tables. I can try to run the suggested fixes on the backup database and
see if it helps.
Thanks for the help.
"Peter Nolan" wrote:
> What about http://support.microsoft.com/kb/816084 ?
> Do you have auto statisics turned on ?
> Are there any unique constraints in the tables themselves ?
> The reason I'm going down this route is that occasionally when bulk loading
> stuff I take off primary keys, indexes ect but somehow the system doesn't
> register it properly and still thinks there something there, it could be as
> part of the sysindexes or the statistics.
> When it happened to me I re-established my primary key indexes ect.
> You could also try dropping you statistics are re-establishing them.
> Anyways thats about all I can help you, good luck and I hope you get a
> successful resolution.
> Peter
> Peter
> "sqlsleuth" wrote:
> > The Object ID
> > 992722589 does not exist so there is nothing to check. Each time DBCC
> > CHECKALLOC is run it appears in the results of a different table.
> >
> > "Peter Nolan" wrote:
> >
> > > Couple of things...
> > >
> > > If the 'ID' column is still unique, then check if its got a unique
> > > constraint on, if not then put it on.
> > >
> > > If that doe't work take off the foreign key from all tables referencing the
> > > table which ID is part of and do your CHECKALLOC again.
> > >
> > > If that doesn't work then have a look at
> > > http://support.microsoft.com/kb/816084
> > >
> > > Peter
> > >
> > >
> > >
> > >
> > > "sqlsleuth" wrote:
> > >
> > > > Server: Msg 2576, Level 16, State 1, Line 1
> > > > IAM page (0:0) is pointed to by the previous pointer of IAM page (1:867)
> > > > object ID 992722589 index ID 0 but was not detected in the scan.
> > > > Server: Msg 2577, Level 16, State 1, Line 1
> > > > Chain sequence numbers are out of order in IAM chain for object ID
> > > > 992722589, index ID 0. Page (1:867) sequence number 1 points to page
> > > > (1:48122) sequence number 0.
> > > >
> > > > I get this error every time I run DBCC CHECKALLOC(DBName). The page number
> > > > is always the same but, the location of the error in the output moves on each
> > > > subsequent run. The Object ID does not exist in sysindexes, syscolumns,
> > > > sysdepends or sysobjects. I have put the DB in single user mode and run DBCC
> > > > CHECKDB(DBNAME, repair_allow_data_loss). It says it cannot repair the DB.
> > > > Going to a previous backup is not an option so I am getting ready to bcp all
> > > > of the data to a new database. Are there any other options for this?
> > > >
> > > > -Alan-|||For complete troubleshooting of the above error message, you will need to firstly analyze the exact reason for the corruption of sequence numbers of IAM pages. If the corruption is caused due to hardware failure, then change the hardware component. However, in case of software corruption, run DBCC CHECKDB command  with appropriate repair clause  to repair the database.



DBCC CHECKDB command allows complete repair in most cases. But, if in case the command fails, then the only option is to use a advanced SQL Recovery software.

IAM page (0:0) is pointed to by the previous pointer of IAM page (

Server: Msg 2576, Level 16, State 1, Line 1
IAM page (0:0) is pointed to by the previous pointer of IAM page (1:867)
object ID 992722589 index ID 0 but was not detected in the scan.
Server: Msg 2577, Level 16, State 1, Line 1
Chain sequence numbers are out of order in IAM chain for object ID
992722589, index ID 0. Page (1:867) sequence number 1 points to page
(1:48122) sequence number 0.
I get this error every time I run DBCC CHECKALLOC(DBName). The page number
is always the same but, the location of the error in the output moves on each
subsequent run. The Object ID does not exist in sysindexes, syscolumns,
sysdepends or sysobjects. I have put the DB in single user mode and run DBCC
CHECKDB(DBNAME, repair_allow_data_loss). It says it cannot repair the DB.
Going to a previous backup is not an option so I am getting ready to bcp all
of the data to a new database. Are there any other options for this?
-Alan-
Couple of things...
If the 'ID' column is still unique, then check if its got a unique
constraint on, if not then put it on.
If that doe't work take off the foreign key from all tables referencing the
table which ID is part of and do your CHECKALLOC again.
If that doesn't work then have a look at
http://support.microsoft.com/kb/816084
Peter
"sqlsleuth" wrote:

> Server: Msg 2576, Level 16, State 1, Line 1
> IAM page (0:0) is pointed to by the previous pointer of IAM page (1:867)
> object ID 992722589 index ID 0 but was not detected in the scan.
> Server: Msg 2577, Level 16, State 1, Line 1
> Chain sequence numbers are out of order in IAM chain for object ID
> 992722589, index ID 0. Page (1:867) sequence number 1 points to page
> (1:48122) sequence number 0.
> I get this error every time I run DBCC CHECKALLOC(DBName). The page number
> is always the same but, the location of the error in the output moves on each
> subsequent run. The Object ID does not exist in sysindexes, syscolumns,
> sysdepends or sysobjects. I have put the DB in single user mode and run DBCC
> CHECKDB(DBNAME, repair_allow_data_loss). It says it cannot repair the DB.
> Going to a previous backup is not an option so I am getting ready to bcp all
> of the data to a new database. Are there any other options for this?
> -Alan-

IAM page (0:0) is pointed to by the previous pointer of IAM page (

Server: Msg 2576, Level 16, State 1, Line 1
IAM page (0:0) is pointed to by the previous pointer of IAM page (1:867)
object ID 992722589 index ID 0 but was not detected in the scan.
Server: Msg 2577, Level 16, State 1, Line 1
Chain sequence numbers are out of order in IAM chain for object ID
992722589, index ID 0. Page (1:867) sequence number 1 points to page
(1:48122) sequence number 0.
I get this error every time I run DBCC CHECKALLOC(DBName). The page number
is always the same but, the location of the error in the output moves on eac
h
subsequent run. The Object ID does not exist in sysindexes, syscolumns,
sysdepends or sysobjects. I have put the DB in single user mode and run DBC
C
CHECKDB(DBNAME, repair_allow_data_loss). It says it cannot repair the DB.
Going to a previous backup is not an option so I am getting ready to bcp all
of the data to a new database. Are there any other options for this?
-Alan-Couple of things...
If the 'ID' column is still unique, then check if its got a unique
constraint on, if not then put it on.
If that doe't work take off the foreign key from all tables referencing the
table which ID is part of and do your CHECKALLOC again.
If that doesn't work then have a look at
http://support.microsoft.com/kb/816084
Peter
"sqlsleuth" wrote:

> Server: Msg 2576, Level 16, State 1, Line 1
> IAM page (0:0) is pointed to by the previous pointer of IAM page (1:867)
> object ID 992722589 index ID 0 but was not detected in the scan.
> Server: Msg 2577, Level 16, State 1, Line 1
> Chain sequence numbers are out of order in IAM chain for object ID
> 992722589, index ID 0. Page (1:867) sequence number 1 points to page
> (1:48122) sequence number 0.
> I get this error every time I run DBCC CHECKALLOC(DBName). The page numbe
r
> is always the same but, the location of the error in the output moves on e
ach
> subsequent run. The Object ID does not exist in sysindexes, syscolumns,
> sysdepends or sysobjects. I have put the DB in single user mode and run D
BCC
> CHECKDB(DBNAME, repair_allow_data_loss). It says it cannot repair the DB.
> Going to a previous backup is not an option so I am getting ready to bcp a
ll
> of the data to a new database. Are there any other options for this?
> -Alan-sql

IAM error?

I have gotten the following error a few times on just one database that I
have:
Table error: IAM page (1:511426) (object ID 2, index ID 255) is out of the
range of this database.
This error can only be fixed by running dbcc checkdb allow_data_loss. Can
anyone tell me what may be causing this error and what I can change or avoid
so it stops happening?
TIA
jjYou have corruption in the database. Unless you have backups from before
you got the corruption you are probably going to have to loose some data by
running CHECKDB as mentioned. The first choice is always try to restore
from known good backups though.
--
Andrew J. Kelly SQL MVP
"jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
news:u%2311wOGwFHA.2808@.TK2MSFTNGP10.phx.gbl...
>I have gotten the following error a few times on just one database that I
>have:
> Table error: IAM page (1:511426) (object ID 2, index ID 255) is out of the
> range of this database.
> This error can only be fixed by running dbcc checkdb allow_data_loss. Can
> anyone tell me what may be causing this error and what I can change or
> avoid so it stops happening?
> TIA
> jj
>|||Actually I fixed the errors with the aforementioned script but since I only
have these errors on this one db every few months I'm wondering what's going
on.
"Andrew J. Kelly" <sqlmvpnooospam@.shadhawk.com> wrote in message
news:%23nGwJ$HwFHA.3556@.TK2MSFTNGP12.phx.gbl...
> You have corruption in the database. Unless you have backups from before
> you got the corruption you are probably going to have to loose some data
> by running CHECKDB as mentioned. The first choice is always try to
> restore from known good backups though.
> --
> Andrew J. Kelly SQL MVP
>
> "jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
> news:u%2311wOGwFHA.2808@.TK2MSFTNGP10.phx.gbl...
>>I have gotten the following error a few times on just one database that I
>>have:
>> Table error: IAM page (1:511426) (object ID 2, index ID 255) is out of
>> the range of this database.
>> This error can only be fixed by running dbcc checkdb allow_data_loss. Can
>> anyone tell me what may be causing this error and what I can change or
>> avoid so it stops happening?
>> TIA
>> jj
>|||Sounds like you have hardware problems. That is the most common cause of
corruption these days. Fixing the problem with DBCC CHECKDB is not the best
solution. You loose data each time you fix it that way. Do you know what
data you lost? Your database is no longer solid with regards to data
integrity but you haven't a clue as to where. Not a good situation to be
in.
--
Andrew J. Kelly SQL MVP
"jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
news:OLEZlDIwFHA.664@.tk2msftngp13.phx.gbl...
> Actually I fixed the errors with the aforementioned script but since I
> only have these errors on this one db every few months I'm wondering
> what's going on.
>
> "Andrew J. Kelly" <sqlmvpnooospam@.shadhawk.com> wrote in message
> news:%23nGwJ$HwFHA.3556@.TK2MSFTNGP12.phx.gbl...
>> You have corruption in the database. Unless you have backups from before
>> you got the corruption you are probably going to have to loose some data
>> by running CHECKDB as mentioned. The first choice is always try to
>> restore from known good backups though.
>> --
>> Andrew J. Kelly SQL MVP
>>
>> "jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
>> news:u%2311wOGwFHA.2808@.TK2MSFTNGP10.phx.gbl...
>>I have gotten the following error a few times on just one database that I
>>have:
>> Table error: IAM page (1:511426) (object ID 2, index ID 255) is out of
>> the range of this database.
>> This error can only be fixed by running dbcc checkdb allow_data_loss.
>> Can anyone tell me what may be causing this error and what I can change
>> or avoid so it stops happening?
>> TIA
>> jj
>>
>

IAM error?

I have gotten the following error a few times on just one database that I
have:
Table error: IAM page (1:511426) (object ID 2, index ID 255) is out of the
range of this database.
This error can only be fixed by running dbcc checkdb allow_data_loss. Can
anyone tell me what may be causing this error and what I can change or avoid
so it stops happening?
TIA
jj
You have corruption in the database. Unless you have backups from before
you got the corruption you are probably going to have to loose some data by
running CHECKDB as mentioned. The first choice is always try to restore
from known good backups though.
Andrew J. Kelly SQL MVP
"jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
news:u%2311wOGwFHA.2808@.TK2MSFTNGP10.phx.gbl...
>I have gotten the following error a few times on just one database that I
>have:
> Table error: IAM page (1:511426) (object ID 2, index ID 255) is out of the
> range of this database.
> This error can only be fixed by running dbcc checkdb allow_data_loss. Can
> anyone tell me what may be causing this error and what I can change or
> avoid so it stops happening?
> TIA
> jj
>
|||Actually I fixed the errors with the aforementioned script but since I only
have these errors on this one db every few months I'm wondering what's going
on.
"Andrew J. Kelly" <sqlmvpnooospam@.shadhawk.com> wrote in message
news:%23nGwJ$HwFHA.3556@.TK2MSFTNGP12.phx.gbl...
> You have corruption in the database. Unless you have backups from before
> you got the corruption you are probably going to have to loose some data
> by running CHECKDB as mentioned. The first choice is always try to
> restore from known good backups though.
> --
> Andrew J. Kelly SQL MVP
>
> "jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
> news:u%2311wOGwFHA.2808@.TK2MSFTNGP10.phx.gbl...
>
|||Sounds like you have hardware problems. That is the most common cause of
corruption these days. Fixing the problem with DBCC CHECKDB is not the best
solution. You loose data each time you fix it that way. Do you know what
data you lost? Your database is no longer solid with regards to data
integrity but you haven't a clue as to where. Not a good situation to be
in.
Andrew J. Kelly SQL MVP
"jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
news:OLEZlDIwFHA.664@.tk2msftngp13.phx.gbl...
> Actually I fixed the errors with the aforementioned script but since I
> only have these errors on this one db every few months I'm wondering
> what's going on.
>
> "Andrew J. Kelly" <sqlmvpnooospam@.shadhawk.com> wrote in message
> news:%23nGwJ$HwFHA.3556@.TK2MSFTNGP12.phx.gbl...
>

IAM error?

I have gotten the following error a few times on just one database that I
have:
Table error: IAM page (1:511426) (object ID 2, index ID 255) is out of the
range of this database.
This error can only be fixed by running dbcc checkdb allow_data_loss. Can
anyone tell me what may be causing this error and what I can change or avoid
so it stops happening?
TIA
jjYou have corruption in the database. Unless you have backups from before
you got the corruption you are probably going to have to loose some data by
running CHECKDB as mentioned. The first choice is always try to restore
from known good backups though.
Andrew J. Kelly SQL MVP
"jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
news:u%2311wOGwFHA.2808@.TK2MSFTNGP10.phx.gbl...
>I have gotten the following error a few times on just one database that I
>have:
> Table error: IAM page (1:511426) (object ID 2, index ID 255) is out of the
> range of this database.
> This error can only be fixed by running dbcc checkdb allow_data_loss. Can
> anyone tell me what may be causing this error and what I can change or
> avoid so it stops happening?
> TIA
> jj
>|||Actually I fixed the errors with the aforementioned script but since I only
have these errors on this one db every few months I'm wondering what's going
on.
"Andrew J. Kelly" <sqlmvpnooospam@.shadhawk.com> wrote in message
news:%23nGwJ$HwFHA.3556@.TK2MSFTNGP12.phx.gbl...
> You have corruption in the database. Unless you have backups from before
> you got the corruption you are probably going to have to loose some data
> by running CHECKDB as mentioned. The first choice is always try to
> restore from known good backups though.
> --
> Andrew J. Kelly SQL MVP
>
> "jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
> news:u%2311wOGwFHA.2808@.TK2MSFTNGP10.phx.gbl...
>|||Sounds like you have hardware problems. That is the most common cause of
corruption these days. Fixing the problem with DBCC CHECKDB is not the best
solution. You loose data each time you fix it that way. Do you know what
data you lost? Your database is no longer solid with regards to data
integrity but you haven't a clue as to where. Not a good situation to be
in.
Andrew J. Kelly SQL MVP
"jj" <jeff_detoro@.urmc.rochester.edu> wrote in message
news:OLEZlDIwFHA.664@.tk2msftngp13.phx.gbl...
> Actually I fixed the errors with the aforementioned script but since I
> only have these errors on this one db every few months I'm wondering
> what's going on.
>
> "Andrew J. Kelly" <sqlmvpnooospam@.shadhawk.com> wrote in message
> news:%23nGwJ$HwFHA.3556@.TK2MSFTNGP12.phx.gbl...
>

I/O error

Hello,
I am getting following while creating a non-clustered
index on a table having 20 million records. Can anyone
suggest a solution for this...
Server: Msg 823, Level 24, State 11, Line 1
I/O error 33(error not found) detected during write at
offset 0x000002c8450000 in
file 'F:\SQL2K_Data\PROD_Data.MDF'.
Connection Broken
Regards,
ManojManoj,
This error came from the Operating system and not SQL Server. It
indicates a problem with your underlying hardware, most probably your
disk subsystem. Can you reproduce it on another server?
Run sqlhdtst available from http://support.microsoft.com/?id=178444 to
reproduce the error on your hardware.
--
Mark Allison, SQL Server MVP
http://www.markallison.co.uk
Looking for a SQL Server replication book?
http://www.nwsu.com/0974973602.html
Manoj Raheja wrote:
> Hello,
> I am getting following while creating a non-clustered
> index on a table having 20 million records. Can anyone
> suggest a solution for this...
> Server: Msg 823, Level 24, State 11, Line 1
> I/O error 33(error not found) detected during write at
> offset 0x000002c8450000 in
> file 'F:\SQL2K_Data\PROD_Data.MDF'.
> Connection Broken
> Regards,
> Manoj
>|||Manoj
It seems to be serious problem.
I suggest to restore database from the last BACKUP or if you don't have then
from query Analyser, master database, execute
dbcc checkdb(<databas_name>)
"Manoj Raheja" <manoj_raheja@.hotmail.com> wrote in message
news:1bfe301c451ed$eaba6680$a101280a@.phx.gbl...
> Hello,
> I am getting following while creating a non-clustered
> index on a table having 20 million records. Can anyone
> suggest a solution for this...
> Server: Msg 823, Level 24, State 11, Line 1
> I/O error 33(error not found) detected during write at
> offset 0x000002c8450000 in
> file 'F:\SQL2K_Data\PROD_Data.MDF'.
> Connection Broken
> Regards,
> Manoj
>

I need to create index on a column containing sequential numbers with at least s

I need to create index on a column containing sequential numbers with at least seven significant digits. Which index would be best suited for this task?Not enough info:

What are your inserts versus queries?

Do you have a PK?

Is there already a clustered index on the table?

how will the column be updated, inserted and also deleted by?