[fedora-virt] Install Guest\HD Q?
Richard W.M. Jones
rjones at redhat.com
Sat Jun 6 11:27:57 UTC 2009
On Sat, Jun 06, 2009 at 12:01:50PM +0100, Frank Murphy (Frankly3d) wrote:
> Is it possible to assign a full *physical drive*
> to each guest.
Yes, it's possible. Not necessarily advisable though.
> If I need one for F11, F11, Rawide
> the first two being update in line with releases.
> Do I set this up while installing the host OS?
> Best Recommended?
I'm not quite clear what you want, but: Assuming you have a PC with
four physical drives installed, then you can have the host on one of
them (probably /dev/sda is best). During host OS installation, leave
/dev/sd[b-d] untouched. Then in virt-install or virt-manager you can
select to install the guest using /dev/sd[b-d] as their main drive.
*Inside the guest* the drive will appear to the guest as /dev/sda.
The reason we don't do this normally is that it's incredibly
inflexible. What happens if one guest needs more disk space? Get
your screwdriver out and replace that drive?
A better solution is to treat all four drives as 'storage', combine
them together using RAID and/or LVM, then use LVM to partition out
flexible chunks of space for the host and each guest. LVM allows you
to resize guest logical volumes to cope with future requirements.
 Particularly expanding -- shrinking is a bit more of a problem.
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
Read my programming blog: http://rwmj.wordpress.com
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