With RAIDZ you get 1 disk worth of IOPS.
Run FIO local and over the network against your array and see if the results pass the sniff test:
https://www.veeam.com/kb2014
Remember to divide by 3 for reverse incremental. With a single mirror in your pool, after dividing by 3, you should net about 2/3 of 1 disk of IOPS.
If you must stick with reverse incremental, you may need to go with a RAID 10 equivalent. Because I think you need to more than double or triple your performance and mirroring more RAIDZ vdevs will only take you so far (e.g. you could do 6, 4 drive RAIDZ1 vdevs in a pool to triple your IOPS).
XFS gets you fast clone, we use forever forward with GFS restore points for retention and weekly synthetic fulls. Without fast clone, the synthetic fulls would take too long. This is on 18 drives in a RAID 60.
Run FIO local and over the network against your array and see if the results pass the sniff test:
https://www.veeam.com/kb2014
Remember to divide by 3 for reverse incremental. With a single mirror in your pool, after dividing by 3, you should net about 2/3 of 1 disk of IOPS.
If you must stick with reverse incremental, you may need to go with a RAID 10 equivalent. Because I think you need to more than double or triple your performance and mirroring more RAIDZ vdevs will only take you so far (e.g. you could do 6, 4 drive RAIDZ1 vdevs in a pool to triple your IOPS).
XFS gets you fast clone, we use forever forward with GFS restore points for retention and weekly synthetic fulls. Without fast clone, the synthetic fulls would take too long. This is on 18 drives in a RAID 60.
Statistics: Posted by Entropy — Feb 19, 2024 1:50 pm
