ZFS Comparison (RAID10 vs RAIDZ vs RAIDZ2) : r/Proxmox - Reddit

I would have expected the RAIDZ pools to have slower writes from the copy-on-write feature. Also, I don't know enough about "scrubbing" and if the drawbacks of degradation at 80-90% …

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ZFS Comparison (RAID10 Vs RAIDZ Vs RAIDZ2) : R/Proxmox - Reddit

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I would have expected the RAIDZ pools to have slower writes from the copy-on-write feature. Also, I don't know enough about "scrubbing" and if the drawbacks of degradation at 80-90% …

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RAID10 Vs RAIDZ2 : R/truenas - Reddit

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View community ranking In the Top 5% of largest communities on Reddit. RAID10 vs RAIDZ2 . Got 4x4TB drives in 2x striped mirrors. I would like to add 2x 16TB drives. I love the flexibility …

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FAQs about ZFS Comparison (RAID10 vs RAIDZ vs RAIDZ2) : r/Proxmox - Reddit Coupon?

Is raidz2 Otoh good?

RaidZ2 otoh provides more resilience (any 2 disks can break) and in the case of 6 disks, 67% space efficiency (vs 50%). Performance should also be more than enough for nextcloud and plex. There are very strong cases for pools of mirror vdevs for sure, but it’s not the be-all-end-all. (Says the guy who runs 6 disks in RaidZ2. ;-) ) ...

Is raidz1 better than raidz2?

Raidz1 with hot spare is still worse than a raidz2. Keep in mind that you will lose bit rot protection when one disks fails. So with one degraded disk the smallest error (even if it is just one single bit flip) will cause data corruption. ...

Is RaidZ the best mix of all parameters?

RAIDZ appears to be the best mix of all parameters. However, I'm still curious if this conclusion is accurate or if I'm missing something else? The full output of the benchmark is below: ...

Should I use raidz2 or raid10 striped mirror?

That's a strong enough reason to recommend the single vdev RAIDZ2 configuration, over the RAID10 striped mirror configuration. It also seems logical that in the RAID10 configuration, if you lost one drive in one striped mirrored pair, and then you lost its mirror, both vdevs would die, and the zpool would be lost too. ...

What if raidz2 has 8 disks?

For RAIDZ2 with 8 disks, notice that if your volblocksize is set to the default of 8KiB (2x 4096-byte sectors), the overhead of parity and padding hits the maximum of 200%, i.e. to store 16TiB you need 48TiB of raw disk space. This is very bad. ...

How many TB is a raidz2 hard drive?

(1) The conversion from base 10 to base 2. 6TB according to your hard drive manufacturer is really 5.45TB (2) Parity space for RAIDZ2 is N -2, so (8 - 2) * 5.45 = 32.7TB usable. (3) ZFS overhead, same as any file system. ...