[ovirt-users] Replicated Glusterfs on top of ZFS

[Arman Khalatyan]

no,
ZFS itself is not on top of lvm. only ssd was spitted by lvm for slog(10G)
and cache (the rest)
but in any-case the ssd does not help much on glusterfs/ovirt  load it has
almost 100% cache misses....:( (terrible performance compare with nfs)





On Thu, Mar 2, 2017 at 1:47 PM, FERNANDO FREDIANI <fernando.frediani at upx.com
> wrote:

> Am I understanding correctly, but you have Gluster on the top of ZFS which
> is on the top of LVM ? If so, why the usage of LVM was necessary ? I have
> ZFS with any need of LVM.
>
> Fernando
>
> On 02/03/2017 06:19, Arman Khalatyan wrote:
>
> Hi,
> I use 3 nodes with zfs and glusterfs.
> Are there any suggestions to optimize it?
>
> host zfs config 4TB-HDD+250GB-SSD:
> [root at clei22 ~]# zpool status
>   pool: zclei22
>  state: ONLINE
>   scan: scrub repaired 0 in 0h0m with 0 errors on Tue Feb 28 14:16:07 2017
> config:
>
>     NAME                                    STATE     READ WRITE CKSUM
>     zclei22                                 ONLINE       0     0     0
>       HGST_HUS724040ALA640_PN2334PBJ4SV6T1  ONLINE       0     0     0
>     logs
>       lv_slog                               ONLINE       0     0     0
>     cache
>       lv_cache                              ONLINE       0     0     0
>
> errors: No known data errors
>
> Name:
> GluReplica
> Volume ID:
> ee686dfe-203a-4caa-a691-26353460cc48
> Volume Type:
> Replicate (Arbiter)
> Replica Count:
> 2 + 1
> Number of Bricks:
> 3
> Transport Types:
> TCP, RDMA
> Maximum no of snapshots:
> 256
> Capacity:
> 3.51 TiB total, 190.56 GiB used, 3.33 TiB free
>
>
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