Date: Mon, 01 Dec 2014 12:56:39 -0500 From: Karl Denninger <karl@denninger.net> To: freebsd-fs@freebsd.org Subject: Re: Irregular disk IO and poor performance (possibly after reading a lot of data from pool) Message-ID: <20141201175639.4309067.12451.1776@denninger.net> In-Reply-To: <547CA9F5.7030300@internetx.com> References: <1417438604.143909513.k6b3b33f@frv41.fwdcdn.com> <547CA5AA.8080105@multiplay.co.uk> <547CA9F5.7030300@internetx.com>
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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@freebsd.org Reply To: juergen.gotteswinter@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 _______________________________________________ freebsd-fs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-fs To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" %SPAMBLOCK-SYS: Matched [@freebsd.org+], message okhelp
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