Irregular disk IO and poor performance (possibly after reading a lot of data from pool)

[Karl Denninger]

‎You may have one or more drives taking seek errors and retrying; I've seen similar behavior. Smartctl *might* disclose this -- the bad news is that some drives do not log these events!

-- Karl
(On Passport PDA)
  Original Message  
From: InterNetX - Juergen Gotteswinter
Sent: Monday, December 1, 2014 12:49
To: freebsd-fs at freebsd.org
Reply To: juergen.gotteswinter at internetx.com
Subject: Re: Irregular disk IO and poor performance (possibly after reading a lot of data from pool)

looks kinda strange, too? could you add the output of

zpool status -vv

gstat -c could be helpful, too as well as good old smartctl -a

Am 01.12.2014 um 18:30 schrieb Steven Hartland:
> disk1 mountpoint 
> /......... local
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