I use gluster on ssd r5 (two replicas + arbiter) with ACS for those who need VM HA. Works fine, but I doubt it will work fine for HDD RAID5, as it is only for linear workloads without bbu, and other tricks.
пт, 24 апр. 2020 г., 21:15 <n...@li.nux.ro>: > Hi, > > I would not use Gluster in production for VM workloads, perhaps as > secondary storage where there are mostly sequential writes involved > rather than load of random I/O, it would be fast at that. > > CEPH is a much better choice, it's user base is an order of magnitude > larger and so many more problems and corner cases covered. > CEPH is however also much more complex to deploy and maintain so you > should do a few trials before that. > > You should be able to get a HA CEPH deployment up and running, I do not > think they do deduplication though and neither GlusterFS afaik. I would > imagine any deduplication process would put a crippling amount of load > on the performance or require ludicrous amounts of extra resources. > > /imho > > Regards > > On 2020-04-24 13:05, Pratik Chandrakar wrote: > > Hello, > > I am using gluster 5.11 (3 node replication on raid 5) as a primary > > storage for cloudstack 4.11.2 on Centos 7.7, the setup is running > > stable for more then a year but performance of VM degraded very much > > with the increasing number of active VMs, UI response, boot time of > > VMs are also slow. One more problem which I face with the VMs which > > has more than 500 GB of storage doesn't start in case of stopped > > status without manual intervention of attaching and detaching of data > > volumes. Therefore I am planning to migrate to Ceph RBD. Will it be a > > right choice or something else should be considered because HA and > > deduplication is a must have requirement?? > > I know it's a naive question but didn't found answer on google. >
