Hi, can you check IOPS? and state # of VM's ? do : iostat -x 1 for a while =)
Isnt RAID discouraged ? AFAIK gluster likes JBOD, am I wrong? regards, JP 2017-10-25 12:05 GMT-03:00 Bryan Sockel <bryan.soc...@altn.com>: > Have a question in regards to storage performance. I have a gluster > replica 3 volume that we are testing for performance. In my current > configuration is 1 server has 16X1.2TB( 10K 2.5 Inch) drives configured in > Raid 10 with a 256k stripe. My 2nd server is configured with 4X6TB (3.5 > Inch Drives) configured Raid 10 with a 256k stripe. Each server is > configured with 802.3 Bond (4X1GB) network links. Each server is > configured with write-back on the raid controller. > > I am seeing a lot of network usage (solid 3 Gbps) when i perform file > copies on the vm attached to that gluster volume, But i see spikes on the > disk io when watching the dashboard through the cockpit interface. I > spikes are up to 1.5 Gbps, but i would say the average through put is maybe > 256 Mbps. > > Is this to be expected, or should it be a solid activity in the graphs for > disk IO. Is it better to use a 256K stripe or a 512 strip on the hardware > raid configuration? > > Eventually i plan on having the hardware match up for better performance. > > > Thanks > > Bryan > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > >
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