[Users] Very bad write performance in VM (ovirt 3.3.3)

[ml ml]

Hi Vijay,

i deleted the Cluster/Datacenter and set it up with two new (physical)
Hosts and now the performance looks great.

I dunno what i did wrong. Thanks a lot....


On Mon, Feb 10, 2014 at 6:10 PM, Vijay Bellur <vbellur at redhat.com> wrote:

> On 02/09/2014 11:08 PM, ml ml wrote:
>
>> Yes, the only thing which brings the wirte I/O almost on my Host Level
>> is by enabling viodiskcache = writeback.
>> As far as i can tell this is caching enabled for the guest and the host
>> which is critical if sudden power loss happens.
>> Can  i turn this is on if i have a BBU in my Host System?
>>
>>
> I was referring to the set of gluster volume tunables in [1]. These
> options can be enabled through "volume set" interface in gluster CLI.
>
> The quorum options are used for providing tolerance against split-brains
> and the remaining ones are recommended normally for performance.
>
> -Vijay
>
> [1] https://github.com/gluster/glusterfs/blob/master/extras/
> group-virt.example
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20140211/b42238a6/attachment-0001.html>