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[Xen-users] Newbie requesting words of wisdom from the experienced

To: "Xen users list Xen" <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] Newbie requesting words of wisdom from the experienced
From: christoffer@xxxxxxxxx
Date: Sat, 28 Feb 2009 16:04:30 +0100 (CET)
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I'm trying to set up a file server for home use. Piece of cake if done on
physical hw. However, adding a couple hundred bucks for cores and some
memory bought me hardware that would support virtualization well. Besides,
file serving is quite low on resources. This leads me to think that
running e.g. OpenFiler in domU would be a good idea, leaving plenty of
domU execution space for other purposes.

Could you please comment on the idea regarding the feasibility, any
gotchas, pointers or other?

I previously tried FreeNAS as HVM, which didn't work so well, because HVM
apparently depends on qemu/ioemu, which can only export four disks, which
is not enough. I need about seven - short term - and an additional four
next time I expand storage.

As a last resort, I guess I could simply set up software RAID in dom0 and
export the resulting volumes to a domU filer, but I would like to be able
to get an SMS if a disk fails. That assumes a server/demon process can
discover it and transmit. The idea is to have as little of such stuff in
dom0 as possible, for security reasons. I'm no security whiz, but
understand that server processes in dom0 probably defeats any security.


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