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

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