[comp.sys.sun] Tape drive devices /dev/rst*

PUB%MANVAX.BITNET@cunyvm.cuny.edu (Ed Geraghty - Pub files Manager) (05/24/91)

I am using a Sun-4/370 with an internal 1/4" tape 150Meg tape drive.  I am
trying to figure out which the numbers after the /dev/rst mean.  (e.g.
/dev/rst0 /dev/rst8 etc...) can any one tell me what they mean or tell me
where in the manual set I can find them. I have looked for them ang have
not been successful.

ballen@convex.csd.uwm.edu (Bruce Allen) (06/05/91)

In article <2878@brchh104.bnr.ca> PUB%MANVAX.BITNET@cunyvm.cuny.edu (Ed Geraghty - Pub files Manager) writes:
>I am using a Sun-4/370 with an internal 1/4" tape 150Meg tape drive.  I am
>trying to figure out which the numbers after the /dev/rst mean.  (e.g.
>/dev/rst0 /dev/rst8 etc...) can any one tell me what they mean or tell me
>where in the manual set I can find them. I have looked for them ang have
>not been successful.


Look on the st(4s) man page:
   For QIC-150 tape devices (Archive Viper):
	     /dev/rst[0-3]        QIC-150 Format
		       /dev/rst[8-11]       QIC-150 Format
				 /dev/rst[16-20]      QIC-150 Format
					   /dev/rst[24-28]      QIC-150 Format
						     /dev/nrst[0-3]       non-rewinding QIC-150 Format
							       /dev/nrst[8-11]      non-rewinding QIC-150 Format
									 /dev/nrst[16-19]     non-rewinding QIC-150 Format
										   /dev/nrst[24-27]     non-rewinding QIC-150 Format

jms@tardis.tymnet.com (Joe Smith) (06/05/91)

In article <2878@brchh104.bnr.ca> PUB%MANVAX.BITNET@cunyvm.cuny.edu (Ed Geraghty - Pub files Manager) writes:
>I am trying to figure out which the numbers after the /dev/rst mean.  (e.g.
>/dev/rst0 /dev/rst8 etc...) can any one tell me what they mean?

Try "man st".  The st (SCSI Tape) driver is documented in section 4 of
the manuals.  The name "st0" is unit 0 at low density and "st8" is unit
0 at higher density.  For the 150meg 1/4-inch tapes, there is no difference.
-- 
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