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From: Dark Penguin <darkpenguin@yandex.ru>
To: Edward Kuns <eddie.kuns@gmail.com>, linux-raid@vger.kernel.org
Subject: Re: md failing mechanism
Date: Sat, 23 Jan 2016 02:07:37 +0300	[thread overview]
Message-ID: <56A2B639.7000902@yandex.ru> (raw)
In-Reply-To: <CACsGCyTUBRrQgt0GiVp1R6pv-4gO44Ro7pgm4iCq+1KwWDoPsg@mail.gmail.com>

> Depending on your distribution, you may have been scrubbing all along.

 > Notice that if you have problems with timeouts, then this scrubbing
 > can break your array by causing you to hit a bad sector and fail as
 > Phil and others have described in several of his referenced EMails.

I remember disabling scrubbing myself. My reasons were not very... 
bright, but now it turned out to be a it's a good thing, because with 
TL;DR disabled by default, it could lead to that kind of bad things 
happening, yes. I remember having one drive kicked out of an array in my 
home storage, and since then, I've learned to use write-intent bitmaps 
to re-add them more easily. But I'm a BAARF person, so I only have 
mirrors; I wonder what happens if the only drive in a degraded mirror 
fails?..


> I took the script from this Email:
>
> https://www.marc.info/?l=linux-raid&m=144661276420400&w=2
>
> and dropped that code in my /etc/rc.d/rc.local after verifying that my
> Linux distribution still ran that script on every startup.  YMMV.
> That solved my problem.  Good luck.

I was afraid to learn that my latest pack of drives are modern enough to 
be castrated already, but it turned out they are not. :) My anime is 
safe with the last 5900RPM Hitachi drives available, and they do support 
TL;DR. I wish Hitachi made more 5900RPM drives for such purposes...


-- 
darkpenguin

  reply	other threads:[~2016-01-22 23:07 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-22 17:59 md failing mechanism Dark Penguin
2016-01-22 19:29 ` Phil Turmel
2016-01-22 20:00   ` Wols Lists
2016-01-22 21:44   ` Dark Penguin
2016-01-22 22:18     ` Phil Turmel
2016-01-22 22:50       ` Dark Penguin
2016-01-22 23:23         ` Edward Kuns
2016-01-22 23:34       ` Wols Lists
2016-01-23  0:09         ` Dark Penguin
2016-01-22 22:37     ` Edward Kuns
2016-01-22 23:07       ` Dark Penguin [this message]
2016-01-22 23:39         ` Wols Lists
2016-01-23  0:09           ` Dark Penguin
2016-01-23  0:34         ` Phil Turmel
2016-01-23 10:33           ` Dark Penguin
2016-01-23 15:12             ` Phil Turmel
2016-01-22 23:40     ` James J
2016-01-23  0:44       ` Phil Turmel
2016-01-23 14:09       ` Wols Lists
2016-01-23 19:02         ` James J
2016-01-24 22:13           ` Adam Goryachev

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