Re: RAID1: What happens when one half of a mirror fails?

On Thu, 2005-06-30 at 21:53 +0200, Frank Wittig wrote:

Eric Pretorious wrote:

quoted

On Thursday 30 June 2005 12:03 pm, Laurent CARON wrote:

quoted

is the swap partition on raid?

No. swap both swap partitions are formatted as standard swap partitions and mounted via /etc/fstab.

That's no good idea. If a disk fails which contains a swap partition to
which data has been swapped the system will crash.
Therefor it is important to use mirrored partitions for swap.

This is totally specific to the usage of the machine you're doing the
mirroring on: the relative importance of loss of disk space vs downtime.

If a little downtime is no big deal, and you could use a little extra
disk space, then sure, don't mirror swap.

If downtime is more important than the loss of a little disk space, then
do mirror swap.

Before you say that disk is always cheaper than downtime, recall that
sometimes there'll be a layer of bureaucracy between you and the
purchase of a new disk.