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Recovery with logs, then incremental, then more logs?

Recovery with logs, then incremental, then more logs?

2006-04-18       - By Riyaj Shamsudeen

Reply:     1     2     3     4     5     6     7     8     9     10     >>  

Issuing a commit forces the LGWR to write the log buffer contents to
disk physically, which is a primary mechanism for database consistency.  
After the successful write, committed changes are permanent whether
instance crashes or not later. From your error message, I think that
*somehow* log writes are partly successful leading to corruption.

It is scary to have redo log corruption just due to out-of-space errors..

I don't know much about NFS3 protocol, but is your vendor / file system
in this list ?

http://www.oracle.com/technology/deploy/availability/htdocs/vendors_nfs.html


Allen, Brandon wrote:
> It is NFS3 - details below:
>
>
> /baan4 ->mount|grep -e mounted -e --- -e baan4db
>   node       mounted        mounted over    vfs       date        options
> -- ----- -- ---- ---- --  -- ---- ---- --  -- --- -- ---- ---- -- ---- ---- --
> gbtnas01 /baan4db         /baan4           nfs3   Feb 12 21:29 rw,bg,hard
,intr,rsize=8192,wsize=8192,vers=3,proto=tcp,biods=24
>
>
> Please let me know if you see any problems with the above config.
>
> Thanks,
> Brandon
>
>
> -- --Original Message-- --
> From: Riyaj Shamsudeen [mailto:rshamsud@(protected)]
> Sent: Tuesday, April 18, 2006 12:14 PM
> To: Allen, Brandon
> Cc: Binley Lim; oracle-l@(protected)
> Subject: Re: Recovery with logs, then incremental, then more logs?
>
>
>     What type of file system are you using for your redo log files ? Is there
any special mount options in use ? While I agree with the solution as point-in
-time recovery for online redo log corruption, but out-of-space error as a cause
, does not fit for redo log files.
>
>  
>
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>  


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