Summary: 8500 8mm tape drive question

From: Suzanna M. Vasquez (vasquezs@radon.brooks.af.mil)
Date: Fri Oct 28 1994 - 00:35:53 CDT


Received responses to look at the mage page for st.

Here's a summary:

     /dev/rmt/[0- 127][l,m,h,u,c][b][n]
                 where l,m,h,u,c specifies the density (low,
                 medium, high, ultra/compressed), b the optional
                 BSD behavior (see mtio(7)), and n the optional
                 no rewind behavior. For example, /dev/rmt/0lbn
                 specifies unit 0, low density, BSD behavior, and
                 no rewind.
                 For helical-scan tape devices (Exabyte
                 8200/8500/8500c/8505):
                 l Standard 2 Gbyte format
                 m 5 Gbyte format (8500 only)
                 h,c data compression
                                                 (8500c, 8505 only)
                 
Thanks to the following:

 Andre Saile <saile@transtec.de>
 Kenneth.Erickson@Eng.Sun.COM (Ken Erickson)
 Andy_Feldt@phyast.nhn.uoknor.edu (Andy Feldt)
 glenn@uniq.com.au (Glenn Satchell - Uniq Professional Services)
 bharrell@digit.com (Bruce L. Harrell)
 REEDWV@RCWUSR.BP.COM
 epl@Kodak.COM (Gene Loriot (epl@kodak.com))

> HI all!
>
> Have 8500 8mm tape drives on sparc 10 using 112-m tape media.
> The OS is Solaris 2.3. One tape drive is set to id=4 and the
> other is id=5.
>
> Can you all help me in clarifying what each raw device
> for the tape drives do and suggestions on what is best to use?
> The following table is probabley incorrect but can someone
> explain to me the correct response in this format?
>
> /dev/rmt/0bn = ? = ?
> /dev/rmt/0lbn = low density = ? hold 2.3GB non-compressed info
> /dev/rmt/0mbn = high density = ? hold 5.0GB non-compressed info
> /dev/rmt/0hbn = low density w/compression = ?
> /dev/rmt/0ubn = high density w/compression = ?
> /dev/rmt/0cbn = ? = ?
>
>
>
> Thanks.
>
> suzanna
>
> --------------------------------+---------------------------
> Suzanna M. Vasquez | Unix System Administrator
> Computer Sciences Corporation | Brooks AFB
> vasquezs@radon.brooks.af.mil | (210) 536-5444
>



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