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Operating Systems Solaris Tar & Tape drive without media Post 302266803 by incredible on Thursday 11th of December 2008 05:06:26 AM
Old 12-11-2008
Quote:
Originally Posted by jmsathish
I would like to know what would happen if the tape (media) is not placed on the drive and a tar command is executed to backup on the tape.
The problem here is, you will have to see the script.. how intelligent it is to check whether the tape drive is there or not, if not its not to probe the drive anymore, or cause the system to hang..

Quote:
Originally Posted by jmsathish
My problem is that tar command hanged for multiple days instead of throwing the error,
Is it valid behaviour?
What evident do you have that the tar command hanged on the system? did you try a tar command manually on some files?
And by the way, your output provided is really not sufficient to find the root cause
 

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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 5.11 10 Mar 2000 tcopy(1)
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