[CentOS] RAID help

Tue Dec 14 19:11:22 UTC 2010
m.roth at 5-cent.us <m.roth at 5-cent.us>

Ryan Wagoner wrote:
> On Tue, Dec 14, 2010 at 1:49 PM,  <m.roth at 5-cent.us> wrote:
>> Jason T. Slack-Moehrle wrote:
<snip>
>>> 3. Create other mount points I might want i.e swap, /home, etc
>>> 4. Create RAID1 out of these partitions
>>
>> Only if you want each directory RAIDed. DO NOT mirror swap. Bad idea.
>
> You want to mirror swap. If a drive fails your swap immediately goes
> offline. If an application had memory in swap it is now lost.
<snip>
Mmmm... but if a drive goes down, then swap could quite easily be in an
undefined state, part-way through the mirroring.

       mark