Magnetic Tape Post: 302203195

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Operating Systems Solaris Magnetic Tape Post 302203195 by sparcguy on Friday 6th of June 2008 11:07:00 PM

06-07-2008

Registered User

source: docs.sun.com: Solaris Handbook for SMCC Peripherals

* Your system is able to access the tape drive and a tape cartridge is present, if the following status is displayed:

Archive QIC-150 tape drive:
sense key(0x0)= nosense residual= 0 retries= 0
file no= 0 block no= 0

sense key= nosense indicates that your system was able to access the tape and there were no errors. You can then use any of the backup commands described in the following sections.

* The following information tells you that the tape drive was just reset, powered on, or a tape cartridge was recently installed.

Archive QIC-150 tape drive:
sense key(0x6)= unit attention residual= 0 retries= 0
file no= 0 block no=0

In this case, execute the mt -f /dev/rmt/0 status command again until the sense key(0x6)= unit attention advisory message is replaced with the sense key(0x0)= nosense message.

* If the following status is displayed, your system is unable to access the tape.

/dev/rmt/0: no tape loaded or drive offline

In this case, insert a tape and execute the mt -f /dev/rmt/0 status command again.

Also, to further test have you tried doing a lowlevel tar and restore? I think the device for low level tar should be /dev/rmt/0l or 1l (L)

sparcguy

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LEARN ABOUT SUNOS

tcopy

tcopy(1)							   User Commands							  tcopy(1)

NAME

       tcopy - copy a magnetic tape

SYNOPSIS

       tcopy source [destination]

DESCRIPTION

       The  tcopy  utility copies the magnetic tape mounted on the tape drive specified by the source argument. The only assumption made about the
       contents of a tape is that there are two tape marks at the end.

       When only a source drive is specified, tcopy scans the tape, and displays information about the sizes of records and tape files.  If a des-
       tination  is  specified,  tcopy makes a copies the source tape onto the destination tape, with blocking preserved. As it copies, tcopy pro-
       duces the same output as it does when only scanning a tape.

       The tcopy utility requires the use of Berkeley-compatible device names. For example,

       example% tcopy /dev/rmt/1b /dev/rmt/2b

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mt(1), ioctl(2), attributes(5)

NOTES

       tcopy will only run on systems supporting an associated set of  ioctl(2) requests.

SunOS 5.10							    10 Mar 2000 							  tcopy(1)