On Fri, Dec 17, 1999 at 10:23:54AM -0800, Jeff Behl wrote:
> If anyone wants to point me to the mailing list
> archive or faq, that'd be great cuz I'm sure this has
> been asked before. But I'll ask anyways..
>
> Have two drives in which all partitions are mirrored
> except for / partition. My game plan is: If a drive
> dies, I want to
> a) have the machine keep on chugging along without any
> notice. or, if this is not possible,
> b) swap one drive with the other (they're in caddies)
> and have everything working on reboot.
>
> (b) would occur if my hda drive, which has / mounted
> on it, dies. I'm assuming in such a situation the
> machine would lock up (I realize that if drive hdb,
> the second in array, dies, everything should keep
> going no prob...)
>
> Any tips/ideas? Would mirroring the / partition (I
> don't know how stable/good-of-an-idea this is at this
> time) be the way to go? Sorry if this question has
> been asked a hundred and one times...
With 0.90 RAID (included in the -ac series of the kernels) this
is absolutely possible. Make all the partitions RAID-1 devices,
and put your filesystems there. It's no problem (any longer) making
both root and swap reside on RAID.
With IDE your system will most likely keep on running if a disk
fails with bad sectors. Other failures, especially failures on
SCSI (due to the state of the SCSI layer in the kernel) may require
a reboot/powercycle to get the machine up and running again.
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