Re: [Xen-users] how do you create domU partitions?

[Simon Hobson <linux@xxxxxxxxxxxxxxxx>]

At 12:32 +0200 26/9/11, Mauro wrote:
> I've create DomUs in a cluster environment and with a SAN storage.
> I've created a VG and a domU has its own LVM.
> My intent is to create domuS with a single root partition and put
> data, like /var/vmail, in a separate lvm.
> Do you think it's a good solution or it's better to separate
> partitions like /usr, /home, etc.?
It all depends on your requirements and usage.

I have some systems with just a single partition, some where /var is 
separate, and some with several more volumes - eg on a mail server 
I'll have a separate volume for just the mail.
I tend to do all the partitioning in Dom0 (LV for each required 
volume), pass each volume to the DomU as an individual disk, and then 
just use the entire disk in DomU.
It's easy to deal with in Dom0 as you can handle the filesystems easily, eg :
lvm lvcreate -L 2G -n guestnameroot vg0
mkfs -t ext3 /dev/vg0/guestnameroot
mount /dev/vg0/guestnameroot /mnt
<copy files to disk etc>

But it's really a matter of preference. Some people create a "disk" 
for each DomU, then partition it inside the DomU (even using LVM). 
The arrangement as seen in the DomU is more normal, but it's harder 
to work with the disk in Dom0
--
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
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