Re: ZFS secondarycache on SSD problem on r255173

From: Steven Hartland <killing_at_multiplay.co.uk>
Date: Thu, 17 Oct 2013 08:30:41 +0100
Still worth testing with the problem version installed but
with trim disabled to see if that clears the issues, if
nothing else it will confirm / deny if trim is involved.

    Regards
    Steve

----- Original Message ----- 
From: "Vitalij Satanivskij" <satan_at_ukr.net>
To: "Steven Hartland" <killing_at_multiplay.co.uk>
Cc: "Justin T. Gibbs" <gibbs_at_FreeBSD.org>; "Vitalij Satanivskij" <satan_at_ukr.net>; <freebsd-current_at_freebsd.org>; "Borja Marcos" 
<borjam_at_sarenet.es>; "Dmitriy Makarov" <supportme_at_ukr.net>
Sent: Thursday, October 17, 2013 7:12 AM
Subject: Re: ZFS secondarycache on SSD problem on r255173


> Hello.
>
> SSD is Intel SSD 530 series (INTEL SSDSC2BW180A4 DC12)
>
> Controler is onboard intel sata controler, motherboard is Supermicro X9SRL-F so it's Intel C602 chipset
>
> All cache ssd connected to sata 2 ports.
>
> System has LSI MPS controler (SAS2308) with firmware version - 16.00.00.00, but only hdd's (36 1TB WD RE4 drives)
> connected to it.
>
>
> Steven Hartland wrote:
> SH> Ohh stupid question what hardware are you running this on,
> SH> specifically what SSD's and what controller and if relavent
> SH> what controller Firmware version?
> SH>
> SH> I wonder if you might have bad HW / FW, such as older LSI
> SH> mps Firmware, which is know to causing corruption with
> SH> some delete methods.
> SH>
> SH> Without the ashift fixes, you'll be sending short requests
> SH> to the disk which will then ignore them, so I can see a
> SH> potential corrilation there.
> SH>
> SH> You could rule this out by disabling ZFS TRIM with
> SH> vfs.zfs.trim.enabled=0 in /boot/loader.conf
> SH>
> SH>     Regards
> SH>     Steve
> SH>
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Received on Thu Oct 17 2013 - 05:30:29 UTC

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