Re: Oracle configuration on Enterprise E450

I understand the issue with striping being bad for logs, but I would expect that you would want some form of mirroring for them. Then the question would be whether to use Oracle's mirroring or Sun's DiskSuite. I'd be interested in the pros/cons on this...

--Peter

grjohnson wrote:
> We run e450's and currently have a RAID 0 configuratuion. I keep all
> my datafiles on the RAID 0, and Redologs on a seperate drive.
> ALTHOUGH, I'd set it up differently next time.
>
> Keep two drives for redo logs, not mirrored, for mulitplexing.
>
> 2 OS
> 2 Redo logs / archive
> 3 data disks (striped -> /oradata01 (data, temp)
> 3 data disks (striped -> /oradata02 (indexes, undo, system)
>
> From my experince, the LOGS really need to be away from the stripped
> disk.
>
> Cheers,
>
> grjohnson
>
> Birger Blixt <Birger.Blixt_at_uab.ericsson.se> wrote in message news:<3DE60844.44649503_at_uab.ericsson.se>...
>

>>Darren Dunham wrote:
>>
>> 
>>
>>>2 OS disks (mirrored)                     -> / (root)
>>>8 data disks (4 way stripe + mirroring)   -> /oradata1 (db, index, logs..)
>>
>>Even a mirror can be broken.
>>I'm no oracle guru, but I should make another device for logs,
>>so the db can be restored and rollback'ed to a proper state
>>in a time that is acceptable.
>>
>>Plan for the worst case first ,,   recover , backup , then the other.
>>
>>Also, logs and data mey have different mount options,
>>example  forcedirectio,noatime for the db filesys.
>>
>>/bb