[ovirt-users] Storage Domain sizing

[Maor Lipchuk]

I know that there is a monitoring process which monitors each Storage
Domain, so I guess that if you will have multiple storage domains this will
make the monitor runs every time multiple times, but I think that the
affect is insignificant on the Host or the Storage Domain.

You should also consider the limitation of logical volumes in a volume
group,
IINM LVM has a default limit of 255 volumes (I'm not sure how it behaves
regarding efficiency if you use more volumes)
oVirt uses LV also for snapshots so with one storage domain you might get
to this limit pretty quick

On Mon, Jan 23, 2017 at 4:35 PM, Grundmann, Christian <
Christian.Grundmann at fabasoft.com> wrote:

> Hi,
>
> thx for you input
>
> both aren’t problems for me, all domains are from the same storage and so
> can’t be maintained independently.
>
>
>
> Are there performance problems with only one Domain (like waiting for
> locks etc.) which I don’t have that much with multiple?
>
>
>
> Thx Christian
>
>
>
>
>
> *Von:* Maor Lipchuk [mailto:mlipchuk at redhat.com]
> *Gesendet:* Montag, 23. Jänner 2017 15:32
> *An:* Grundmann, Christian <Christian.Grundmann at fabasoft.com>
> *Cc:* users at ovirt.org
> *Betreff:* Re: [ovirt-users] Storage Domain sizing
>
>
>
> There are many factors that can be discussed on this issue,
>
> two things that pop up on my mind are that many storage domains will make
> your Data Center be more robust and flexible, since you can maintain part
> of the storage domains which could help with upgrading your storage server
> in the future or fixing issues that might occur in your storage, without
> moving your Data Center to a non operational state.
>
>
>
> One storage domain is preferrable if you want to use large disks with your
> VMs that small storage domains does not have the capacity to do so
>
>
>
> Regards,
>
> Maor
>
>
>
> On Mon, Jan 23, 2017 at 9:52 AM, Grundmann, Christian <
> Christian.Grundmann at fabasoft.com> wrote:
>
> Hi,
>
> Ii am about to migrate to a new storage.
>
> Whats the best practice in sizing?
>
> 1 big Storage Domain or multiple smaller ones?
>
>
>
> My current Setup:
>
> 11 Hosts
>
> 7 FC Storage Domains 1 TB each
>
>
>
> Can anyone tell me the pro and cons of 1 vs. many?
>
>
>
>
>
> Thx Christian
>
>
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