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From: Darren Reed <avalon@coombs.anu.edu.au>
Subject: Re: Exabyte 8505XL
To: greg@uswest.net (Greg Rowe)
Date: Wed, 25 Dec 1996 10:22:16 +1100 (EDT)
Cc: hackers@freebsd.org
In-Reply-To: <9612240816.ZM12057@nevis.oss.uswest.net> from "Greg Rowe" at Dec 24, 96 08:16:45 am
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In some mail from Greg Rowe, sie said:
> 
>  Can anyone tell me what the default density is for an Exabyte 8505XL tape
> drive
> on 2.1.5 ? I seem to be only getting around 7-8 gig on a tape using Amanda.
> I'm
> not sure if this is because I'm comressing the dumps prior to writing to tape
> and hardware compression can't do much more, or I'm writing to the tape at
> standard 8505 density. I noticed density codes have been added to the SCSI
> code
> at 2.2 for Exabytes. Do I need to upgrade my dump systems to take advantage of
> the Exabyte hardware compression ? Thanks.

bdsf   126 54000 6000   :2.3G",   # Exabyte 8200
bdsf   126 54000 13000  :5.2G",    # Exabyte 8500 (double density 112m)
bdsf   126 54000 18000  :7.0G",    # Exabyte 8500 (double density 160m)
bdsf   126 108000 13000 :10.4G",   # Exabyte 8500-Compression 112m
bdsf   126 108000 18000 :14.0G",   # Exabyte 8500-Compression 160m

these "work" for me, but I'm not sure if they're correct or not.