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[Xen-users] best practicefor storage allocation for vm?

To: <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] best practicefor storage allocation for vm?
From: "it-news \(Josef Lahmer\)" <it-news@xxxxxxxxx>
Date: Tue, 29 May 2007 09:59:42 +0200
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Thread-topic: best practicefor storage allocation for vm?
dear list,

whats de best practice giving store to vm?
you can make plans for every server, but some have much free space, some vm's 
need storage. is there a way to easy change disk capacity?

storage for xen-server side:
a) fc shared storage for a hand of servers. images sored on centrally storage.
b) local lvm and the posibility do add local disks for the vm's
wich variant do you prefer?

on vm side:
my idea was to give every machine minimum disk and add disks when needed.
but what do do when unexpected growth or changes needed?

a) resize lvm-disk => have to user reiser or ex2-fs which can do resizing?
b) add an extra disk and use lvm on vm too? => also problem with resizing 
filesystem?
c) mounting the disk (maybe my snapshot), takeing the files and copy to a new 
bigger disk.

a and b looks interessting, but i think c would also be very easy way?

any other ideas?

regards
josy

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