Re: [NTLK] [OT] Re - Needs

From: Jim Johnston (jimthej_at_mac.com)
Date: Thu Jan 10 2002 - 20:52:11 EST


>
> Eek!
>
> You plugged a SCSI device into a machine while it was running?
>
> Here's what I've been told: Don't do that. It's a "Bad Thing" -- the
> SCSI cables carry power and it's very possible that you can blast your
> scsi card (and even stuff close to the card, like a video card,
> motherboard, etc) by plugging a SCSI device into a chain without powering
> down first.
>
> We even power down our SCSI-connected Solaris arrays before adding drives.
> Supposedly, ADB is beholden to similar restrictions, although the power
> that an old Mac keyboard/mouse carries is less than that of a SCSI
> connection. Other connections, like fibre channel (or usb/firewire, for
> that matter) don't require a power-down.
>
> Sounds like you got away with it. But I wouldn't recommend pulling the Zip
> back off while it was running. ;)
>
> ~Dustin
My first experience with SCSI while running fried the motherboard on a Mac
Iici. My boss was less than pleased.

-- 
Jim Johnston
Teacher
Mac Smacker
Newton User

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