From: Phil Turmel <philip@turmel.org>
To: NeilBrown <neilb@suse.de>, dag@newtech.fi
Cc: linux-raid@vger.kernel.org
Subject: Re: Enable SCTERC in the kernel?
Date: Fri, 25 Oct 2013 08:29:50 -0400 [thread overview]
Message-ID: <526A643E.9000400@turmel.org> (raw)
In-Reply-To: <20131025214252.1929c7f1@notabene.brown>
On 10/25/2013 06:42 AM, NeilBrown wrote:
> On Fri, 25 Oct 2013 11:51 +0300 Dag Nygren <dag@newtech.fi> wrote:
>
>>
>> Hi all!
>>
>> Just run into the standard problem by not having SCTERC enabled
>> for my drives due to a spelling mistake in my rc.local script
>> setting the parameters and started wondering:
>>
>> - What if the md module automatically set this during assembly
>> of the RAID? - In the kernel module itself. It could always set it,
>> if the set failed we could spit out a kernel warning that the used
>> drive might not be the best as a RAID device. Would there be any ill
>> effects from this?
>> - And ditto for the device time-out.
>>
>> This would definitely make md work a lot better for people. I have a
>> strange feeling that most don't know the parameter needs setting...
No strange feeling at all. Most of my posts to this list are helping
people bitten by it.
> I don't think it is appropriate for the kernel to automatically set such
> things. However it might be appropriate for mdadm to do it when assembling
> or creating the array.
>
> I'm happy to review and possibly accept patches.
This is a wonderful idea, as it could possibly help people stuck on
older kernels. I'll take a look at doing this myself.
Phil
next prev parent reply other threads:[~2013-10-25 12:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-25 8:51 Enable SCTERC in the kernel? Dag Nygren
2013-10-25 10:42 ` NeilBrown
2013-10-25 12:29 ` Phil Turmel [this message]
2013-10-25 16:29 ` Piergiorgio Sartor
2013-10-25 10:47 ` Martin K. Petersen
2013-10-25 11:10 ` Dag Nygren
2013-10-25 11:27 ` Martin K. Petersen
2013-10-25 11:35 ` Dag Nygren
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