> It's no problem (any longer) making
> both root and swap reside on RAID.

True of root, but see Stephen Tweedie's message of 6 December for a warning
about swap on RAID. You can get corruption if swapping during RAID resyncing.
It's still probably better than not having swap on RAID, as it should stand up
to a disk failure, you will just have to be careful when you replace the failed
disk, but it is unfortunately not safe to say that it's "no problem" to have
swap on RAID.

Cheers,


Bruno Prior         [EMAIL PROTECTED]

> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Jakob Østergaard
> Sent: 17 December 1999 18:42
> To: [EMAIL PROTECTED]
> Subject: Re: raid-1 mirror...
>
>
> 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.
>
> --
> ................................................................
> : [EMAIL PROTECTED]  : And I see the elder races,         :
> :.........................: putrid forms of man                :
> :   Jakob Østergaard      : See him rise and claim the earth,  :
> :        OZ9ABN           : his downfall is at hand.           :
> :.........................:............{Konkhra}...............:
>
>

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