Comments on: Six Metrics for Measuring ZFS Pool Performance Part 1

By: WDP

WDP — Sun, 09 May 2021 05:15:44 +0000

How do you go about bench marking that? or is it just theoretical estimations? what would be the best fio test to see max throughput reads/writes? and then say a sustained load for multiple computers reading and writing at say a 90:10 ratio? Is that even possible?
How would you numbers change if say, you have 18TB SAS drives on an HBA? Would that impact IOPS and throughput? or is it more of a limitation of platter counts? like a WD HC550 claims 250mb/s.

By: Joon Lee

Joon Lee — Thu, 21 Nov 2019 18:48:36 +0000

In reply to Alexis. Hey, There were no tools used, just theoretical numbers calculated!

By: Alexis

Alexis — Wed, 13 Nov 2019 17:44:10 +0000

Great Article! Please could you provide the tools used for all this benchmarks?
Thanks!

By: Joon Lee

Joon Lee — Wed, 03 Oct 2018 17:27:00 +0000

In reply to hovnocuc. Corrected!

By: hovnocuc

hovnocuc — Wed, 03 Oct 2018 04:45:29 +0000

Are the streaming read speeds correct? IMHO they cannot be better than 1200 MB/s. And write speed is also off for 6x2way mirror.

By: Joon Lee

Joon Lee — Mon, 01 Oct 2018 19:25:23 +0000

In reply to David Still. This week!

By: David Still

David Still — Wed, 26 Sep 2018 17:23:48 +0000

When will Part 2 be posted?