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Article #636Re: Low capacity on Viper SCSI tape drives
From: Dave Olson
Date: Sun, 06 Sep 1992 20:30
Date: Sun, 06 Sep 1992 20:30
22 lines
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1699 bytes
In <22341@venera.isi.edu> dstrout@isi.edu (David Strout) writes:
| I have an old Sun3 shoebox (external case w/ 312MB scsi drive and a
| Viper SCSI tape unit) hooked to a color slab. My thought had been to
| use the tape for backup. I run a little program to do a MTIOCFIXBLK
| to set the block size on /dev/nrst0 to 512 bytes. Then, when I do a
| tar cvf - . > /dev/nrst0, I run out of tape after about 7.5 MB. This
| is with a DC6150 cartrige. What else to I need to do to get the
| per-tape capacity up to the 100-150MB range where it belongs?
More than likely you are getting a media error, rather than
'running out of tape'. Chances are good that if the tape drive
is old, that it is QIC24 (60 Mbyte), not QIC150; should be
a stamping or label on the drive that identifies it as a
2150S (QIC150) or 2060S (QIC24). If it is a QIC24, you
shouldn't use 6150 cartridges, you should use 600A, or the
300XL or 450XL cartridges; the coercivity of the tape is
different on the 6150 and 6250's, and won't work well on
the older drives.
--
Let no one tell me that silence gives consent, | Dave Olson
because whoever is silent dissents. | Silicon Graphics, Inc.
Maria Isabel Barreno | olson@sgi.com
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Path: arc1-ca.pugleaf.net!sparky!uunet!sun-barr!olivea!sgigate!odin!sgihub!zola!zuni!anchor!olson From: olson@anchor.esd.sgi.com (Dave Olson) Newsgroups: comp.sys.next.sysadmin Subject: Re: Low capacity on Viper SCSI tape drives Message-ID: <ph63iuc@zuni.esd.sgi.com> Date: 6 Sep 92 20:30:29 GMT References: <22341@venera.isi.edu> Sender: news@zuni.esd.sgi.com (Net News) Organization: Silicon Graphics, Inc. Mountain View, CA Lines: 22