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From: Ignacio Vazquez-Abrams <ignacio@openservices.net>
To: <linux-kernel@vger.kernel.org>
Subject: Re: Kernel Startup Delay
Date: Tue, 21 Aug 2001 13:02:57 -0400 (EDT)	[thread overview]
Message-ID: <Pine.LNX.4.33.0108211300040.23498-100000@terbidium.openservices.net> (raw)
In-Reply-To: <027001c12a5b$e5d29be0$160e10ac@hades>

On Tue, 21 Aug 2001, Mark Cuss wrote:

> Hello!
>
> I am setting up a server with 4 SCSI hard disks, two of which I will jumper
> to have a delayed spin up as to not bake the power supply.  These two drives
> will contain a striping RAID.  I am concerned that the kernel will load off
> of the other drives and attempt to start this RAID before the disks have
> even spun up - is there a way to have the kernel delay its startup for a
> certain number of seconds while all the drives spin up?
>
> Any hints are greatly appreciated.
>
> Mark

I thought that this was a function of the SCSI BIOS? I know that with the
Adaptec AHA-x940xx and AIC-78x0 you can tell the card/chip to spin up the
drives after individually-configurable delays, and then continue booting the
system once all the drives have spun up. Does your card/chip have a similar
feature?

-- 
Ignacio Vazquez-Abrams  <ignacio@openservices.net>


  reply	other threads:[~2001-08-21 17:03 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <9lu1js$s3o$1@ns1.clouddancer.com>
2001-08-21 16:11 ` Kernel Startup Delay Mark Cuss
2001-08-21 17:02   ` Ignacio Vazquez-Abrams [this message]
2001-08-21 19:01   ` Colonel
2001-08-22  6:00   ` Jim Roland
     [not found] <no.id>
2001-08-21 16:26 ` Alan Cox

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