Monday, March 19, 2012

Crash Recovery

I am trying to restore a crashed server. The server has an SQL2K
installation with a small database (say) DATA. The file DATA.MDF has gone
missing during the crash. The file DATA.LDF has been recovered. There is
also a backup file DATA.BAK. This backup is about 4 MB and I suspect it was
used to install the database in the first place, as it is several months
old. The log file LDF has been recently updated and is 47 Mb.
Is there any way to recover this database to a reasonable up to date version
using DATA.BAK and DATA.LDF. All suggestions are welcome?
BobHi,
Since the MDF file is not avaible you will not able be use the LDF.
But using DATA.BAK file you can recover the database back to the time in
whcih backup is created.
How to restore the BAK file.
From Query analyzer execute the below command
1. Copy the DATA.BAK to c:\backup folder
Restore database <dbname> from disk='c:\backup\data.bak'
You may need to use WITH Move option along with restore statement.
Thanks
Hari
MCDBA
"Bob Morris" <bmorris@.kenyaonline.com> wrote in message
news:#fVLgrcBEHA.3348@.TK2MSFTNGP11.phx.gbl...
> I am trying to restore a crashed server. The server has an SQL2K
> installation with a small database (say) DATA. The file DATA.MDF has gone
> missing during the crash. The file DATA.LDF has been recovered. There is
> also a backup file DATA.BAK. This backup is about 4 MB and I suspect it
was
> used to install the database in the first place, as it is several months
> old. The log file LDF has been recently updated and is 47 Mb.
> Is there any way to recover this database to a reasonable up to date
version
> using DATA.BAK and DATA.LDF. All suggestions are welcome?
> Bob
>
>|||Thanks,
But I need to know if there's any way to apply the LDF. The MDB file was
probably created on this machine from the BAK file. (i.e. the database was
created elsewhere and "restored" to this machine with the force restore
option). The LDF will reflect changes since that was done, and that's what I
want to try and do.
Regards
Bob
"Hari" <hari_prasad_k@.hotmail.com> wrote in message
news:eAF4v9cBEHA.3568@.tk2msftngp13.phx.gbl...
> Hi,
> Since the MDF file is not avaible you will not able be use the LDF.
> But using DATA.BAK file you can recover the database back to the time in
> whcih backup is created.
> How to restore the BAK file.
> From Query analyzer execute the below command
> 1. Copy the DATA.BAK to c:\backup folder
> Restore database <dbname> from disk='c:\backup\data.bak'
> You may need to use WITH Move option along with restore statement.
> Thanks
> Hari
> MCDBA
>
>
>
> "Bob Morris" <bmorris@.kenyaonline.com> wrote in message
> news:#fVLgrcBEHA.3348@.TK2MSFTNGP11.phx.gbl...
gone
> was
> version
>|||Thanks, but what I need is to try and apply the LDF after I restore the
backup.
Regards
"Hari" <hari_prasad_k@.hotmail.com> wrote in message
news:eAF4v9cBEHA.3568@.tk2msftngp13.phx.gbl...
> Hi,
> Since the MDF file is not avaible you will not able be use the LDF.
> But using DATA.BAK file you can recover the database back to the time in
> whcih backup is created.
> How to restore the BAK file.
> From Query analyzer execute the below command
> 1. Copy the DATA.BAK to c:\backup folder
> Restore database <dbname> from disk='c:\backup\data.bak'
> You may need to use WITH Move option along with restore statement.
> Thanks
> Hari
> MCDBA
>
>
>
> "Bob Morris" <bmorris@.kenyaonline.com> wrote in message
> news:#fVLgrcBEHA.3348@.TK2MSFTNGP11.phx.gbl...
gone
> was
> version
>|||You can't apply an LDF file to a restored database backup. If you're lucky,
you might be able to dig something out of the LDF file using some log reader
program. See my signature, the links.
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
"Bob Morris" <bmorris@.kenyaonline.com> wrote in message
news:eiZLHtfBEHA.2768@.tk2msftngp13.phx.gbl...
> Thanks, but what I need is to try and apply the LDF after I restore the
> backup.
> Regards
> "Hari" <hari_prasad_k@.hotmail.com> wrote in message
> news:eAF4v9cBEHA.3568@.tk2msftngp13.phx.gbl...
> gone
is
it
months
>

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