IO problem Proxmox 8 ZFS RAID 10

Feb 12, 2020
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Dark fiber
Hello,

I have a problem that I have been dragging for a long time, I have Dell R630 servers with 6 Samsung EVO 870 SSD 1TB disks and I have a ZFS RAID 10, when I migrate or make a high disk consumption, the IO goes up a lot and the load the same, anyone can think of any idea how to solve it? Previously, I think with LVM did not happen, but in Proxmox 8 no longer allows you to create a RAID 10 with LVM, I have even thought of mounting the 6 disks in RAID 10 Hardware and install with the XFS option, any ideas?

Thanks,
 
but in Proxmox 8 no longer allows you to create a RAID 10 with LVM
It never did. With LVM you need to rely on HW Raid.

Are the disks used in JBOD/HBA mode? Those EVOs are consumer SSDs. It is likely that their caches are getting full and then the performance will drop.
 

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