ZFS regimen: scrub, scrub, scrub and scrub again.

[matt]

On 01/23/13 14:27, Wojciech Puchar wrote:
>>
>
> both "works". For todays trend of solving everything by more hardware
> ZFS may even have "enough" performance.
>
> But still it is dangerous for a reasons i explained, as well as it
> promotes bad setups and layouts like making single filesystem out of
> large amount of disks. This is bad for no matter what filesystem and
> RAID setup you use, or even what OS.
>
>
ZFS mirror performance is quite good (both random IO and sequential),
and resilvers/scrubs are measured in an hour or less. You can always
make pool out of these instead of RAIDZ if you can get away with less
total available space.

I think RAIDZ vs Gmirror is a bad comparison, you can use a ZFS mirror
with all the ZFS features, plus N-way (not sure if gmirror does this).

Regarding single large filesystems, there is an old saying about not
putting all your eggs into one basket, even if it's a great basket :)

Matt