On Wednesday 18 July 2007 15:50, besonen wrote:
> is it true that with software raid 1 that i cannot have the boot drive
> protected?
No. However, getting the mirror of the boot drive to be bootable
under grub in readiness for when the boot drive fails does not seem
to me to be quite as easy/reliable as it was under LILO. Maybe a
grub expert can post a reliable recipe here.
> if this is the case what are some work-arounds besides using a
> 3ware controller for just the boot drive?
n/a
> can i take a single drive that was part of a mirrored array and attach it
> to another computer and access the data?
With software RAID 1 yes. (But not with other RAID levels.)
> if a hard drive in a mirrored array fails, and i replace the failed drive,
> will the array auto-rebuild?
Software RAID usually mirrors partitions rather than whole drives.
You'll need to partition the new drive and add the new partititions to
the RAIDs. A couple of minutes work. The mirrors will then rebuild.
> and during the rebuild process, can the
> rebuild be throttled such that the system remains usable while the rebuild
> occurs?
Yes. You can change the speedlimits by echoing integers into
/proc/sys/dev/raid/speed_limit_{min,max}
--Mike Bird
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