[5575] in linux-scsi channel archive
Re: Swapping on raid
daemon@ATHENA.MIT.EDU (Super User)
Wed Jan 13 03:54:36 1999
From: root@lls.lls.com (Super User)
To: louism@man8.com (Louis Mandelstam)
Date: Wed, 13 Jan 1999 08:48:18 +0000 (GMT)
Cc: russell@lls.lls.com, linux-raid@vger.rutgers.edu,
linux-scsi@vger.rutgers.edu
In-Reply-To: <Pine.LNX.3.96.990113102401.25561W-100000@man8.mailgate.net> from "Louis Mandelstam" at Jan 13, 99 10:29:23 am
Quoth Louis Mandelstam.....
>
>On Wed, 13 Jan 1999, Russell Brown wrote:
>
>> >Reasons TO USE RAID for swap - if the darn swap partition goes bad,
>>
>> Except that the lower level SCSI drivers* seem to croak when a disk goes
>> bad and lockup the system anyway :-(
>> * - aic7xxx in my case.
>
>I didn't have opportunity to test by actually pulling drives out of the
>SCSI tray yet however, but echoing to appropriate command to
>/proc/scsi/.. had the desired effect of shutting down a disk, causing md
>to rebuild onto a hot spare. Removing the shut down drive at this point
>works fine, and I can re-add it later, spin it up using echo ... >
>/proc/scsi/... and make it part of the RAID again.
Yes that's a nicely controlled removal - try pulling the power from a
running drive (or in your case pull it out of the tray) and things might
not be quite so clean.
--
Regards,
Russell
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| Russell Brown | MAIL: russell@lls.com PHONE: 01780 471800 |
| Lady Lodge Systems | WWW Work: http://www.kings.demon.co.uk/ |
| Peterborough, England | WWW Play: http://www.kings.demon.co.uk/russell/ |
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