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List:       sun-managers
Subject:    SUMMARY: Need help with 8705 DX tape drive
From:       Kevin Maher <kmaher () sunspot ! tasc ! dot ! gov>
Date:       2000-10-31 14:22:19
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Ok, thanks to all of you that replied.  I got a few useful things to try,
some of which are detailed below.  Mostly, I got confirmation that about
10G is on target for what I should be expecting here.  I was also
recommended to check out Exabyte's site for an st.conf entry, which I had
already done.  The most intriguing solution was from TED BACKHERMS
<DMVTJB@dmv.state.va.us>, who said:

	I use the /dev/rmt/0hbn device with the following st.conf and I
	get good use of my tapes in Networker. Can't say about ufsdump,
	however.

	 "EXABYTE EXB-8505", "Exabyte EXB-8705 8mm Eliant 820","EXB-8SC";

	EXB-8SC = 1,0x29,0,0xce39,2,0x15,0x8c,1;

	This is on a 2.5.1 machine.

	I think the 0hbn spec is important, too, to prevent i/o errors
	which will cut your capacity under Networker.

This st.conf entry differs from the one Exabyte published on their web
site.  The published entry looks like so:

	EXB-8SC = 1,0x29,0,0xce39,4,0x15,0x15,0x8c,0x8c,1;

Others suggested that I try 0c as my backup device, which I'll also give a
try.


On Mon, 30 Oct 2000, Kevin Maher wrote:

> We have several 8705 DX tape drives (8mm) on our Sol 2.x systems here.
> These drives are *supposed* to be 14GB capacity (with compression
> naturally), but I'm not getting anything over 10G max on a tape ever.  
> I'm using ufsdump to device /dev/rmt/0h.  I'm using a blocking factor of
> 126, which was the only real help I found at sunsolve, and (before
> somebody asks) I am using the 160mXL tapes.
> 
> What I'd like to know is if somebody out there has an entry for st.conf
> that will utilize this drive to it's fullest other than what I found at
> the Exabyte web site.  If this is the best I can expect, I'd also like to
> know since I may decide to drop this model and go with AIT (Mammoth)
> instead.
> 
> 
> 
> 
> S
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