zfs, nfs and zil

[Claus Guttesen]

> If your disk controller has a lot of cache on it, and a battery
> backup, then enabling the write cache and disabling the ZIL can be
> faster, without sacrifising consistency (the write cache on the
> controller acts like a ZIL).  There's several threads on the
> zfs-discuss mailing list where this is discussed.

It's an areca sata-controller with 512 MB battery backed cache.

> However, the better solution, and the one most recommended for those
> using NFS with ZFS, is to install a small, write-optimised, SLC-based
> SSD to the system as a separate log (SLOG/ZIL) device.
>
> NFS is a very sync-heavy protocol, and having a super-fast ZIL sitting
> on a separate SSD will greatly improve things.

Thank you. I'll get a ssd-drive (also suggested by Alexander).

-- 
regards
Claus

When lenity and cruelty play for a kingdom,
the gentler gamester is the soonest winner.

Shakespeare

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