How to speed up slow zpool scrub?

[Andy Farkas]

> -----Original Message-----
> From: PK1048 [mailto:paul at pk1048.com]
> Sent: Wednesday, 27 April 2016 12:34 PM
> To: Andy Farkas <andyf at andyit.com.au>
> Cc: freebsd-fs at freebsd.org
> Subject: Re: How to speed up slow zpool scrub?
>
> ...
> Scrubs (and resilver) operations are essentially all random I/O. Those
> drives are low end, low performance, desktop drives.

Yes, the system is an old low end, low performance desktop. That was
my point, that it took 25 hours to scrub 7.52T and not 4 days like the
OP is saying.

-andyf



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