I am on the latest gluster version 6.x. I have an nvme lvm cache, configured on a sata based volume. I have two bricks replicated, and configured exactly the same way.
I have made sure that the block size on volumes and xfs is 128k. The issue is that the write performance to the mounted gluster volume is horribly slow 39 mib/s.
However if I test the lvm volume performance or the individual bricks performance I get 600-700 mib/s, which confirms the bricks are configured correctly. It is only when I attempt to mount the gluster file system remotely or even locally I get slow speeds.
I had a similar config 2 nvme disks for the hot tier and 2 sata disks for the cold tier, and the mounted gluster file system v3.12 was giving near 600 mib/s.
It's not the network, as mounting locally has the same issue. I tried write through on the lvm volume, but no luck.
What could be the problem?
Thanks
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