Re: [Xen-users] XCP and Gluster

[Wouter van Eekelen <me@xxxxxxx>]

Well, our setup is as follows:

- Hostnodes have a 8 GB USB stick or 30 GB SSD for local storage

- Are connected to a SAN through iSCSI.

You indeed need some local storage, but you can have the actual VM storage on a SAN.

On Mon, Jun 6, 2011 at 2:54 PM, Scott Damron <sdamron@xxxxxxxxx> wrote:

Are you actually thinking of XCP here when you say don't have any
disks in the servers?  I don't think that is an option, as it uses
local disk when bringing up a VM, I believe this is the default
behavior.  Then there is his question about Infiniband.  ipoib may be
supported in XCP, but plain Infiniband is not.  I imagine a person
could fiddle around and get it working, but it wouldn't be stable
enough from what I have seen.

Thanks,

Scott

On Mon, Jun 6, 2011 at 5:48 AM, Wouter van Eekelen <me@xxxxxxx> wrote:
> You should have a SAN and have no disks in the actual servers.
>
> On Mon, Jun 6, 2011 at 12:45 PM, Martins Lazdans <marrtins@xxxxxxxx> wrote:
>>
>> What do you recommend for such configuration:
>> Say, we have 4 servers, each with 12 drives. I want to distribute and
>> replicate xen images over all servers in such manner that:
>> *) live migration works
>> *) *any* one of 4 server may fail still leaving *all* images accessible.
>> *) Will work over Infiniband (not only using ipoib)
>> *) It would be a big plus, if filesystem do not require separate
>> metadata/transaction/management/you-name-it server or at least provide
>> machanism for transparent fileover.
>>
>> I was reading deocumentation of number of network filesystems and
>> GlusterFS seemed the best choice.
>>
>> Igor Serebryany wrote:
>>>
>>> On Sun, Jun 05, 2011 at 11:56:28PM +1000, Joseph Glanville wrote:
>>>>
>>>> I would really recommend against using Gluster or any filesystem based
>>>> method of providing VM storage
>>>
>>> Ditto. I would specifically recommend against Gluster. We tried it at my
>>> company for VM storage, and it's just not suitable for large files like
>>> VM images, especially if you are hoping to use the advanced features
>>> like replication.
>>>
>>> --Igor
>>>
>>>
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>>
>> --
>> Martins Lazdans
>>
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>
>
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