Slog SSD - hardware advise

[Fred974]

Hi all,

is the Integral 120GB M.2 2280 PCIE NVME SSD Drive be good enough as slog SSD?
My next alternative is a DREVO X1 Pro SSD

Thank you

 

[KrisBee]

Off the top of my head, I'd say no to both those devices. The characteristics you want when choosing a SLOG device are: proper power loss protection, low latency & high speed writes combined with high write endurance. These criteria are not meet by typical consumer SSD devices.

But you should really review these three threads and satisfy yourself that your workload will benefit from a SLOG:

https://forums.freenas.org/index.php?threads/some-insights-into-slog-zil-with-zfs-on-freenas.13633
https://forums.freenas.org/index.php?threads/testing-the-benefits-of-slog-using-a-ram-disk.56561/
https://forums.freenas.org/index.php?threads/slog-benchmarking-and-finding-the-best-slog.63521/

 

[Chris Moore]

But you should really review these three threads and satisfy yourself that your workload will benefit from a SLOG:

Great links.