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From: bijal@hpopd.pwd.hp.com (Bijal Shah)
Newsgroups: comp.sys.hp
Subject: Re: DAT drive on HP9000/800 ??
Message-ID: <38070001@hpopd.pwd.hp.com>
Date: 25 Jan 91 08:58:46 GMT
References: <1991Jan24.175544.23068@objy.com>
Organization: Hewlett-Packard CCG-PWD, UK.
Lines: 51

/ hpopd:comp.sys.hp / bruce@opus.objy.com (Bruce Reed) /  5:55 pm  Jan 24, 1991 /
>I been given an HP9000/800 to take care of with a tape drive that appears
>to be a DAT drive, but I'm not sure. The label on the drive says "Digital
>Data Storage". 
>
>If is anyone is familiar with this drive, I would appreciate a confirmation
>on my DAT speculation and any other information you can provide on:

	Yes, that is a DAT tape drive.  Digital Data Storage is a method
	of putting the data on the tape developed by HP and Sony (I think).
	I have one of these beasts sitting on my S370.

>  -- capacity

	About 1.3Gbytes.  It will dump that amount in roughly 4 hours.

>  -- tape size (useful in dump)

	60 metres, though why you would need this knowledge is beyond me.

>  -- best type of tapes to use (brand/length)

	Use HP tapes, of course! (8-)  As far as I know, there is no other
	length of tape available.  Me thinks that you have been around reel
	tapes for too long ;-)  I think that Sony may do DDS formatted tapes
	too.  Generally, DDS tapes (not DAT!) will last for up to 5000 uses.
	You should get a cleaning tape too, that has too be used once for
	every 25 uses of the DDS drive.  It lasts for 25 uses, too.
	Part numbers are:

		HP92283A - 5 DDS tapes.
		HP92283K - 1 cleaning tape

>  -- any restrictions you know of using this as a standard mt device

	Not as far as I know.  I do know that you shouldn't use the 
	fbackup/frecover commands, as these are not yet properly supported
	by HP-UX.  tar,cpio work fine.  You should have documentation covering
	all this anyway.  It comes with the drive when you by it.  Contact HP.
	They will put you in touch with someone, if they cannot get you the
	documentation.

>-- 
>Bruce Reed        				
>Objectivity Inc.              bruce@objy.com 	| Duck em' if they can't
>Menlo Park, CA                sun!objy!bruce	| take a joke!
>----------

Bijal Shah
HP SESD
Pinewood, England