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- Path: 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
-
- 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
-