[CentOS] problem with swap and upgrade to 4 from 3.3
Peter Farrow
peter at farrows.org
Fri May 6 22:09:32 UTC 2005
Hi There,
Yes I agree, I always raid the swap.....when the original install was
done a staff member (who I have now fired :-) ) did not raid the swap
partitions at install time, leaving me with this problem after raiding
them subsequently
P.
Joshua Baker-LePain wrote:
>On Fri, 6 May 2005 at 9:03am, Daniel J. Cody wrote
>
>
>
>>Hey Peter,
>>
>>
>
>
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>>>I guess I could set the swap back to an unmirrored set, run the upgrade
>>>from the CDs then mirror it again, but this is not ideal, does anyone
>>>have any suggestions as to how to fix this little RAID niggle with the
>>>swap caused by not RAIDing the swap parition originally on install?
>>>
>>>
>>I wouldn't personally recommend using software raid on swap partitions
>>since it causes all sorts of problems like you're describing. If you
>>want to get raid type performance from your swap partitions, I'd suggest
>>just letting the kernel itself handle that.
>>
>>
>
>The main purpose of putting swap on a mirrored array is not performance.
>It allows the system to stay up and running should a disk fail. Mirroring
>the system disk is pretty much pointless if the system is going to die
>upon losing a disk anyway b/c half the swap is now gone.
>
>
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