[ovirt-users] does SPM can run over ovirt-engine host ?
Moti Asayag
masayag at redhat.com
Thu Apr 24 06:27:29 UTC 2014
----- Original Message -----
> From: "Tamer Lima" <tamer.americo at gmail.com>
> To: users at ovirt.org
> Sent: Monday, April 14, 2014 5:13:12 PM
> Subject: [ovirt-users] does SPM can run over ovirt-engine host ?
>
>
> Hello,
>
> When I create virtual machine from a template (centos6.5, 2 cores, 8GB mem,
> 500GB hd) this process takes almost 2 hours. I click on "New VM" button and
> just select the template and click ok.
>
> engine.log show me high network consumption (98%) between engine-server host
> and SPM host.
Could you share that piece of log which indicates the 98% consumption is beween
the engine server to the SPM host (vs the SPM node to the storage server) ?
>
> I tried to make my engine-server host a spm host too, but without sucess.
>
>
> Does SPM can run over on the same ovirt-engine machine ?
>
> Am I make something wrong? Or create VM from template is really slow ?
>
>
> my servers :
> srv-0202 = ovirt-engine , vdsm
> srv-0203 = spm , vdsm
> srv-0204 = vdsm
> These servers are dell blades connected on a 100GB switch.
>
>
>
> thanks
>
>
>
>
> This is what I know about SPM:
> http://www.ovirt.org/Storage_-_oVirt_workshop_November_2011
>
>
>
> = Storage Pool Manager (SPM) A role assigned to one host in a data center
> granting it sole authority over:
>
> * Creation, deletion, an dmanipulation of virtula disk images, snapshots
> and templates
> * Templates: you can create on VM as a golden image and provision to
> multiple VMs (QCOW layers)
> * Allocation of storage for sparse block devices (on SAN)
> * Thin provisinoing (see below)
> * Single metadata writer:
> * SPM lease mechanism (Chockler and Malkhi 2004, Light-Weight Leases
> for Storage-Cnntric Coordination)
> * Storage-centric mailbox
> * This role can be migrated to any host in data center
>
>
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