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From: Doug Ledford <dledford@redhat.com>
To: berthiaume_wayne@emc.com
Cc: alan@lxorguk.ukuu.org.uk, linux-scsi@vger.kernel.org,
	rabeeh@galileo.co.il
Subject: Re: Hot plugging a disk in runtime
Date: Mon, 20 May 2002 13:58:08 -0400	[thread overview]
Message-ID: <20020520135808.A1648@redhat.com> (raw)
In-Reply-To: <93F527C91A6ED411AFE10050040665D0049BFA5A@corpusmx1.us.dg.com>; from berthiaume_wayne@emc.com on Mon, May 20, 2002 at 12:34:46PM -0400

On Mon, May 20, 2002 at 12:34:46PM -0400, berthiaume_wayne@emc.com wrote:
> 	Will it, possibly, cause a reordering of other sd<xx> devices
> already on line when scsi_init is called?

No, it will not move any devices that already exist.  It will either 
insert into the chain in the first hole it finds, or append to the end of 
the chain.  This way, if you have drives sda through sdd and you remove 
sdb, then when you do an add, the new drive will take the now vacant sdb 
slot.  For the common case of wanting to replace a failed drive, this is 
the perfect behaviour.

-- 
  Doug Ledford <dledford@redhat.com>     919-754-3700 x44233
         Red Hat, Inc. 
         1801 Varsity Dr.
         Raleigh, NC 27606
  

  reply	other threads:[~2002-05-20 17:58 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-20 16:34 Hot plugging a disk in runtime berthiaume_wayne
2002-05-20 17:58 ` Doug Ledford [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-05-20 18:11 berthiaume_wayne
     [not found] <rabeeh@galileo.co.il>
2002-05-20 10:19 ` Rabeeh Khoury
2002-05-20 11:41   ` Karl Hammar
2002-05-20 11:57   ` Alan Cox
2002-05-20 11:41     ` Kaushik Datta
2002-05-20 12:24     ` Rabeeh Khoury
2002-05-20 13:14       ` Alan Cox
2002-05-20 14:20       ` James Bottomley
2002-05-21 15:42         ` Michael Clark
2002-05-20 22:33     ` Oliver Xymoron

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