Re: [Xen-users] Xen cLVM and iSCSI

[Barry van Someren <barry@xxxxxxxxxxxxxxxx>]

Hi,

Unfortunately I don't have that level of control over the iSCSI partitioning.
(I buy the storage per LUN and I don't think the provider will like it
if I buy 100's of 10-100 GB LUNS)

Otherwise it would definitely be best as you would just devote a whole
"hd" to a VM.

On Sun, May 3, 2009 at 3:39 PM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:
> On Sun, May 3, 2009 at 5:32 PM, Barry van Someren
> <barry@xxxxxxxxxxxxxxxx> wrote:
>> However when setting up cLVM I just get bogged down with Redhat's
>> clustering so I've taken a look at what cLVM provides and decided not
>> to bother with it.
>
> If you use iscsi anyway, why not give each domU its own LUN and dump
> LVM altogether?
> I believe there's an unofficial block-iscsi script that makes setting
> up domU easier
>
> http://lists.xensource.com/archives/html/xen-devel/2007-11/msg00782.html
>
>> My only concern is that I'm wondering if LVM actually pre-allocates
>> the PE (Physical Extents) or allocates them as required.
>> The last thing would be bad (tm) as it would mean that data could get
>> randomly overwritten.
>
> The first one.
>
> Regards,
>
> Fajar
>
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-- 
Barry van Someren
---------------------------------------
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