Linux Btrfs filesystem development
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From: Roman Mamedov <rm@romanrm.net>
To: Forza <forza@tnonline.net>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: FSTRIM timeout/errors on WD RED SA500 NAS SSD
Date: Fri, 24 Jun 2022 23:37:22 +0500	[thread overview]
Message-ID: <20220624233722.05038e48@nvm> (raw)
In-Reply-To: <98c43f5e-2091-b222-edad-632caef9f9e3@tnonline.net>

On Fri, 24 Jun 2022 17:23:27 +0200
Forza <forza@tnonline.net> wrote:

> Can we work around the Btrfs fstrim issue, for example by splitting up 
> fstrim requests in "discard_max_bytes" sized chunks?

If I'm not mistaken, those discard_max_* are honoured automatically by a lower
level than the submitting filesystem (i.e. the block layer).

It seems like the linux-ide list (or is it linux-scsi for SAS?) could be better
suited to hunt down this issue. Especially if aside from Btrfs even just a
simple blkdiscard also shows trouble.

Btw, did you try lowering discard_max_bytes in sysfs, and then retrying
blkdiscard?

-- 
With respect,
Roman

  reply	other threads:[~2022-06-24 18:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-24 15:23 FSTRIM timeout/errors on WD RED SA500 NAS SSD Forza
2022-06-24 18:37 ` Roman Mamedov [this message]
2022-06-24 22:45   ` Forza
2022-06-24 22:55     ` Roman Mamedov
2022-06-25  6:44 ` Qu Wenruo
2022-06-25 10:34   ` Forza

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