Date: Sat, 11 Apr 2020 19:26:40 +0000 (UTC) From: Chris Ross <cross+freebsd@distal.com> To: "Ireneusz Pluta/wp.pl" <ipluta@wp.pl> Cc: Robert Clausecker <fuz@fuz.su>, freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: ZFS server has gone crazy slow Message-ID: <7AA1EA07-6041-464A-A39A-158ACD1DC11C@distal.com> In-Reply-To: <6fd7a561-462e-242d-5057-51c52d716d68@wp.pl> References: <2182C27C-A5D3-41BF-9CE9-7C6883E43074@distal.com> <20200411174831.GA54397@fuz.su> <6190573D-BCA7-44F9-86BD-0DCBB1F69D1D@distal.com> <6fd7a561-462e-242d-5057-51c52d716d68@wp.pl>
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> On Apr 11, 2020, at 14:10, Ireneusz Pluta/wp.pl <ipluta@wp.pl> wrote:
> W dniu 2020-04-11 o 20:02, Chris Ross pisze:
>> And, I’m not sure how to check SMART values. This is a Dell server, and I’m 95% sure I have it’s RAID controller (Dell PERC 6, mfi0) just set to provide JBOD for the two disks. Will the smartmontools package be useful with disks on an mfi controller?
> Does the controller expose these jbods as /dev/da? devices to the system ?
mfid devices. And, googling showed that I might want to use mfip to allow me to access the drives for smartctl, and I’ll work on that more in a bit..
But, Eugene was kind enough to point out something that should’ve been obvious, that I’d filled my ZFS volumes. I had a snapshot of everything from a while ago, and one of the filesystems contains large data files. Deleting the snapshot on that volume freed things back to functional.
Thanks all.
- Chris
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