Válasz: [zfs] Voluntary fsync

[[e-mail] via illumos-zfs]

Dear Nagy,

It is not the place of ads, but the Intel DC S3700 ssds are quite fast, reliable, and has a long lifetime according to Intel. And is not an expensive one.

Regards,
KÃŒldve az én HTC-mről

----- Reply message -----
Feladó: "Nagy, Attila via illumos-zfs" <***@lists.illumos.org>
Címzett: "Richard Yao" <***@gentoo.org>, <***@lists.illumos.org>
Tárgy: [zfs] Voluntary fsync
Dátum: H, aug. 18, 2014 00:00

On second thought, we could limit this functionality to SLOG devices
unless an in-kernel variable is changed via mdb, a module parameter, or
some other method. I believe that all SLOG devices that anyone would
want to use should support this, so it would be safe and SLOG devices
would see a benefit from increased parallelism.

I'm not sure we are talking about the same. :)

By the way, Nagy, are you using a SLOG device right now?

(Nagy is my surname, in Hungary it comes first, like in Japan)
We use ZFS for a lot of things. There are places where we use SLOG
devices and there are many places where we don't.
To alleviate the described problem we mostly use B/FBWC modules
(battery/flash backed write cache), which is much more cheaper than a
good SLOG device.


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