Dear forum!
Would you consider the
Intel Optane SSD DC P4801X 100GB, U.2
still as a good choice as SLOG device for a home lab ZFS?
RaidZ2 with dedup on x570 with 128GB EEC Ram and 500GB L2ARC (Western Digital WD_BLACK SN750 NVMe SSD 500GB, M.2)
Or recommend an pci-e 4.0 NAND SSD?
Thanks a lot!
zlynx
March 5, 2021, 7:24pm
2
I always vote for Optane.
2 Likes
I am a little bit concerned because of the relatively low write speed of 1GB/s
Enough for now (10G ethernet)
But is this a realistic bottleneck that could be avoided by using NAND Flash?
It seems that the write endurance has gone up significantely.
zlynx
March 5, 2021, 9:31pm
4
As far as I know about ZFS the SLOG does not get hit for every write. Only synchronous writes.
So unless you’re running a database transaction workload it should be fine.
Someone else may know more than I do about that though.
1 Like
What speed are you getting out of your array? nevermind, you would not ask about a bottleneck if you were not expecting to encounter one
nx2l
March 5, 2021, 10:18pm
6
I believe the experts , people on the forum that know more about zfs than I, say that the slog isnt a write cache, therefore it should not determine/limit your zpools write speed.
system
Closed
December 4, 2021, 4:19pm
7
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