[4988] in linux-scsi channel archive
Re: Howto: rescan scsi bus after a hot swap ??
daemon@ATHENA.MIT.EDU (Drew Eckhardt)
Fri Oct 23 16:37:58 1998
To: "Marty Leisner" <leisner@sdsp.mc.xerox.com>
cc: Chris Atenasio <chrisa@ultranet.com>,
Hardware Stuff <mrfixit@clouddancer.com>, linux-scsi@vger.rutgers.edu,
ncr53c810@Colorado.EDU
In-reply-to: Your message of "Fri, 23 Oct 1998 13:11:41 EDT."
<9810231711.AA25452@gnu.sdsp.mc.xerox.com>
Date: Fri, 23 Oct 1998 14:33:01 -0600
From: Drew Eckhardt <drew@Poohsticks.Org>
In message <9810231711.AA25452@gnu.sdsp.mc.xerox.com>, leisner@sdsp.mc.xerox.co
m writes:
>
>> (Symbios makes repeaters for this, or you can use one SCSI channel per devic
>e)
>> chunk of bus for each device.
>>
>> > * However perhaps it is legal to switch on an
>> > * already connected device.
>>
>> Leaving unpowered devices connected is a bad idea.
>
>Why? I've been powering on and off my syquest drives when I
>wanted to use them...
The standard doesn't restrict bus interaction for powered off devices,
and some result in munged data when powered down (I think my old
DEC RZ55 did this).
You might get lucky, or you might not.
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