The previous was a local HDD (2TB, 7200rpm) on the management server with an NFS share, then mounted to cloudstack over NFS. New storage is Raid-z2, 1G between hosts and to NAS, ping seems to take 0.05-0.3 ms between hosts as well as to the NAS.
Best, Pierre On Tue, 2 May 2023 at 16:43, Michael J McCafferty < [email protected]> wrote: > Pierre, What was the "old" storage? Was it local or NAS? This question > is to compare against your new storage. How do you have the 8x8TB disks > configured? A pool of mirrors? RAID-Z2? Are you 1G or 10G or faster between > the hosts and the NAS?MikeSent from my Galaxy > -------- Original message --------From: Pierre Le Fevre <[email protected]> > Date: 4/28/23 1:46 AM (GMT-08:00) To: [email protected] > Subject: Using NFS as primary storage, performance issues Hi all,We're > working on upgrading our storage solution to a proper networkattached > storage.Before this, we had an NFS share on some mounted disks on the > managementserver. Our new setup is a NAS running TrueNAS (zfs) with 64 GB > ram and8x8TB, 7200 rpm hard disks mounted to cloudstack over NFS.It seems > the performance is however much lower than before, resulting insomewhat > unusable virtual machines. In VMs, IOPS can be as low as <10 IOPS,vs 100 > with the management server setup.Is there a recommended setup for primary > storage to yield betterperformance?All the bestPierre,kthcloud
