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Full Discussion: Failed to open tape device /dev/rmt/0mn:Device busy (errno = 16)
Operating Systems HP-UX Failed to open tape device /dev/rmt/0mn:Device busy (errno = 16) Post 302971742 by anuragr on Monday 25th of April 2016 07:04:40 AM
Old 04-25-2016
Failed to open tape device /dev/rmt/0mn:Device busy (errno = 16)
Hi,

Unable to make tape backup, please help.

Code:
/opt/ignite/bin/make_tape_recovery -a /dev/rmt/?mn -I -v -m tar -x inc_entire=vg00

 * Creating local directories for configuration files and archive.

=======  04/25/16 16:28:08 IST  Started /opt/ignite/bin/make_tape_recovery.
         (Mon Apr 25 16:28:08 IST 2016)
         @(#)Ignite-UX Revision C.7.5.142
         @(#)ignite/net_recovery (opt) Revision:
         /branches/IUX_RA0803/ignite/src@72866 Last Modified: 2008-02-06
         15:49:50 -0700 (Wed, 06 Feb 2008)

       * Testing for necessary pax patch.
       * Recovery Archive Description = Recovery Archive

       * Recovery Archive Location    = /dev/rmt/0mn

       * Number of Archives to Save   = 2

       * Pax type  = tar


        In?     dsk/vg  name                    minor#  Associated disks/mountpoints
        2       v       /dev/vg00               0x00    /dev/disk/disk3_p2
                                                /dev/vg00/lvol1 /stand  2
                                                /dev/vg00/lvol2
                                                /dev/vg00/lvol3 /       2
                                                /dev/vg00/lvol4 /home   2
                                                /dev/vg00/lvol5 /opt    2
                                                /dev/vg00/lvol6 /soft   2
                                                /dev/vg00/lvol7 /tmp    2
                                                /dev/vg00/lvol8 /usr    2
                                                /dev/vg00/lvol9 /var    2

        ** 0 - The Volume Group or Filesystem is Not included in the
               System Recovery Archive
        ** 1 - The Volume Group or Filesystem is Partially included in the
               System Recovery Archive
        ** 2 - The Volume Group or Filesystem is Fully included in the
               System Recovery Archive

       * Checking Versions of Ignite-UX filesets
ERROR:   Failed to open tape device /dev/rmt/0mn:Device busy (errno = 16).
ERROR:   Check tape device failed.

=======  04/25/16 16:28:09 IST  make_tape_recovery completed unsuccessfully

>ioscan -funC tape
Class     I  H/W Path     Driver S/W State   H/W Type     Description
=====================================================================
tape      0  0/4/1/0.0.0  stape   CLAIMED     DEVICE       HP      Ultrium 3-SCSI
                         /dev/rmt/0m            /dev/rmt/0mnb          /dev/rmt/c1t0d0BESTn
                         /dev/rmt/0mb           /dev/rmt/c1t0d0BEST    /dev/rmt/c1t0d0BESTnb
                         /dev/rmt/0mn           /dev/rmt/c1t0d0BESTb

>fuser -u /dev/rmt/0m*
/dev/rmt/0m:
/dev/rmt/0mb:
/dev/rmt/0mn:     7701o(root)
/dev/rmt/0mnb:

>ps -ef |grep 7701
    root  6855 21540  0 16:30:58 pts/0     0:00 grep 7701
    root  7701     1  0  Apr 23  pts/0    10:15 /sbin/pax -dwx ustar -f /dev/rmt/0mn


>kill -9 7701

>kill -9 7701

>ps -ef |grep 7701
    root  7701     1  0  Apr 23  pts/0    10:15 /sbin/pax -dwx ustar -f /dev/rmt/0mn
    root  7127 21540  0 16:31:25 pts/0     0:00 grep 7701

>mt -f /dev/rmt/0m status
on tape open: Device busy

>mt -f /dev/rmt/0m rew
/dev/rmt/0m: Device busy

 

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LEARN ABOUT OPENSOLARIS

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 5.11							    10 Mar 2000 							  tcopy(1)
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