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Operating Systems Solaris Tar & Tape drive without media Post 302266744 by jmsathish on Thursday 11th of December 2008 01:29:04 AM
Old 12-11-2008
Tar & Tape drive without media

Hi all,

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.

My problem is that tar command hanged for multiple days instead of throwing the error,
Is it valid behaviour?

I was unable to test the scenario as i dont have a tape drive with me.

Regards,
Satheesh
 

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AMMT(8) 						      System Manager's Manual							   AMMT(8)

NAME
ammt - Amanda version of mt SYNOPSIS
ammt [ -d ] [ -f|-t device ] command [ count ] DESCRIPTION
Ammt provides just enough of the standard mt command for the needs of Amanda. This is handy when doing a full restore and the standard mt program has not yet been found. Ammt also provides access to the Amanda output drivers that support various tape simulations. See the amanda(8) man page for more details about Amanda. See the OUTPUT DRIVERS section of amanda(8) for more information on the Amanda output drivers. OPTIONS
-d Turn on debugging output. -f device Access tape device device. If not specified, the TAPE environment variable is used. -t device Same as -f. command count Which command to issue, and an optional count of operations. COMMANDS
Each command may be abbreviated to whatever length makes it unique. eof|weof count Write count (default: 1) end of file marks (tapemarks). fsf count Skip forward count (default: 1) files. bsf count Skip backward count (default: 1) files. asf count Position to file number count (default: 0) where zero is beginning of tape. This is the same as a rewind followed by a fsf count. rewind Rewind to beginning of tape. offline|rewoffl Rewind to beginning of tape and unload the tape from the drive. status Report status information about the drive. Which data reported, and what it means, depends on the underlying operating system, and may include: ONLINE Indicates the drive is online and ready. OFFLINE Indicates the drive is offline or not ready. BOT Indicates the drive is at beginning of tape. EOT Indicates the drive is at end of tape. PROTECTED Indicates the tape is write protected. ds Device status. er Error register. fileno Current tape file number. blkno Current tape block number file. NOTE: many systems only report good data when a tape is in the drive and ready. AUTHOR
Marc Mengel <mengel@fnal.gov> John R. Jackson <jrj@purdue.edu> SEE ALSO
amanda(8) AMMT(8)
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