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- Newsgroups: comp.unix.sysv386
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!uunet.ca!cognos!maklinm
- From: maklinm@cognos.com (Max Maklin)
- Subject: Re: ARCHIVE SCSI ST525 TAPE AND ISC UNIX 3.01 WONT WRITE
- Message-ID: <1992Nov8.225107.2448@cognos.com>
- Sender: news@cognos.com (News Administrator)
- Nntp-Posting-Host: concorde
- Organization: Cognos Incorporated, Ottawa CANADA
- References: <1dh71nINN52o@uwm.edu>
- Distribution: usa
- Date: Sun, 8 Nov 1992 22:51:07 GMT
- Lines: 50
-
- In article <1dh71nINN52o@uwm.edu> peter@miller.cs.uwm.edu (Peter J Diaz de Leon) writes:
- :^() >I recently bought a Archive ST525 SCSI tape drive and
- :^() >am running it on a DPT EISA SCSI controler under
- :^() >ISC UNIX SYS 5 R3 V:3.0.1
- :^() >
- :^() >The tape drive has been set for SCSI ID 2.
- :^() >I am able to use the "mt" command to retension
- :^() >and rewind and erase the tape in the drive.
- :^() >The mt command with the "-v" option gives me
- :^() >the following:
- :^() >
- :^() > Found scsi tape:
- :^() > speed = 0
- :^() > flags = 0x2118
- :^() > spare = 0
- :^() > media = 0
- :^() > recsiz = 512
- :^() >
- :^() > Rewind status 0
- :^() >
- :^() >However, when I try to write out to the tape
- :^() >using tar or cpio I get:
- :^() >
- :^() >I/O error on write(), errno 5, I/O error
- :^() >
- :^() >I get a very similar message if I try to read of
- :^() >a tape made on another machine.
- :^() >
- :^() >By the way the tape in the tape drive is a
- :^() >DC6150. I have not had a chance to go and buy
- :^() >6525 tapes yet. Could this be the problem?
-
- The I/O error on write is typically returned when the write() call
- has actually run out of tape to write to. Are you sure you are at
- the beginning of the tape? mt has an option to rewind the tape,
- i.e. mt -f device_name rewind. If you are at the beginning this
- command will return immediately. Another source of problems is if
- there is an EOT marker at the beginning of the tape.
-
- I typically get these messages when I tell cpio how long the tape
- is, but because of media errors I in turn use more tape up then I
- told cpio. Therefore it continues streaming thinking there is more
- tape, but in fact runs out as some was passed over because of bad media
-
- Max
- --
- Max Maklin P.O. Box 9707
- Technical Analyst 3755 Riverside Drive
- Cognos Incorporated Ottawa, Ontario CANADA
- Internet: maklinm@cognos.COM UUNet: maklinm@cognos.UUCP
-