After the reboot
or if the ioscan –fnC tape shows the below output:-
[server1:/opt/atdd/bin]# ioscan -fnC tape
Class I H/W Path Driver
S/W State H/W Type Description
===============================================================
tape 0 0/5/1/0.9.12.0.0.0.1 atdd
CLAIMED DEVICE IBM
ULTRIUM-TD2
/dev/rmt/0m
/dev/rmt/0mnr
/dev/rmt/c22t0d1BESTnb /dev/rmt/s0mnb
/dev/rmt/0mb /dev/rmt/c22t0d1BEST /dev/rmt/s0m
/dev/rmt/0mn
/dev/rmt/c22t0d1BESTb
/dev/rmt/s0mb
/dev/rmt/0mnb
/dev/rmt/c22t0d1BESTn
/dev/rmt/s0mn
------------------------------------------------------------------------------------------------------------
So to change from 0mn
to 1mn check with below commands:-
[server1:/opt/atdd/bin]# /opt/atdd/bin/atdd_mksf –h ---à
For Help
[server1:/opt/atdd/bin]# /opt/atdd/bin/atdd_mksf –c -à
The command for listing the commands for creating the special files as
shown below.
mknod /dev/rmt/atdd.dbg c 118 0xFFFFFd
mknod /dev/rmt/atdd.cfg c 118 0xFFFFFc
rm -f /dev/rmt/atdd.ctrl
mknod /dev/rmt/atdd.ctrl c 118 0xFFFFFa
mknod /dev/rmt/0m c 118 0x160100
mknod /dev/rmt/0mb c 118 0x160180
mknod /dev/rmt/0mn c 118 0x160140
mknod /dev/rmt/0mnb c 118 0x1601c0
mknod /dev/rmt/0mnr c 118 0x16014b
rm -f /dev/rmt/c22t0d1BEST
mknod /dev/rmt/c22t0d1BEST c 118 0x160100
rm -f /dev/rmt/c22t0d1BESTb
mknod /dev/rmt/c22t0d1BESTb c 118 0x160180
rm -f /dev/rmt/c22t0d1BESTn
mknod /dev/rmt/c22t0d1BESTn c 118 0x160140
rm -f /dev/rmt/c22t0d1BESTnb
mknod /dev/rmt/c22t0d1BESTnb c 118 0x1601c0
chmod 666
/dev/rmt/atdd.dbg /dev/rmt/atdd.cfg /dev/rmt/atdd.ctrl /dev/rmt/0m
/dev/rmt/0mb /dev/rmt/0mn /dev/rmt/0mnb /dev/rmt/0mnr /dev/rmt/c22t0d1BEST
/dev/rmt/c22t0d1BESTb /dev/rmt/c22t0d1BESTn /dev/rmt/c22t0d1BESTnb
chown bin:bin
/dev/rmt/atdd.dbg /dev/rmt/atdd.cfg /dev/rmt/atdd.ctrl /dev/rmt/0m
/dev/rmt/0mb /dev/rmt/0mn /dev/rmt/0mnb /dev/rmt/0mnr /dev/rmt/c22t0d1BEST
/dev/rmt/c22t0d1BESTb /dev/rmt/c22t0d1BESTn /dev/rmt/c22t0d1BESTnb
So to change from
0mn to 1mn manually create the device file for the tape drive:-
[server1]#mknod /dev/rmt/atdd.dbg c 118 0xFFFFFd
[server1]#mknod /dev/rmt/atdd.cfg c 118 0xFFFFFc
[server1]#rm -f /dev/rmt/atdd.ctrl
[server1]#mknod /dev/rmt/atdd.ctrl c 118 0xFFFFFa
[server1]#mknod /dev/rmt/1m c 118 0x160100
[server1]#mknod /dev/rmt/1mb c 118 0x160180
[server1]#mknod /dev/rmt/1mn c 118 0x160140
[server1]#mknod /dev/rmt/1mnb c 118 0x1601c0
[server1]#mknod /dev/rmt/1mnr c 118 0x16014b
[server1]#rm -f /dev/rmt/c22t0d1BEST
[server1]#mknod /dev/rmt/c22t0d1BEST c 118 0x160100
[server1]#rm -f /dev/rmt/c22t0d1BESTb
[server1]#mknod /dev/rmt/c22t0d1BESTb c 118 0x160180
[server1]#rm -f /dev/rmt/c22t0d1BESTn
[server1]#mknod /dev/rmt/c22t0d1BESTn c 118 0x160140
[server1]#rm -f /dev/rmt/c22t0d1BESTnb
[server1]#mknod /dev/rmt/c22t0d1BESTnb c 118 0x1601c0
Then Change the
permission and owership of the newly created device files as mentioned below.
[server1]#chmod
666 /dev/rmt/atdd.dbg /dev/rmt/atdd.cfg
/dev/rmt/atdd.ctrl /dev/rmt/1m /dev/rmt/1mb /dev/rmt/1mn /dev/rmt/1mnb
/dev/rmt/1mnr /dev/rmt/c22t0d1BEST /dev/rmt/c22t0d1BESTb /dev/rmt/c22t0d1BESTn
/dev/rmt/c22t0d1BESTnb
[server1]#chown
bin:bin /dev/rmt/atdd.dbg
/dev/rmt/atdd.cfg /dev/rmt/atdd.ctrl /dev/rmt/1m /dev/rmt/1mb /dev/rmt/1mn
/dev/rmt/1mnb /dev/rmt/1mnr /dev/rmt/c22t0d1BEST /dev/rmt/c22t0d1BESTb /dev/rmt/c22t0d1BESTn
/dev/rmt/c22t0d1BESTnb
Then Check with
ioscan as shown below after the changes:-
[server1:/opt/atdd/bin]# ioscan -fnC tape
Class I H/W Path Driver
S/W State H/W Type Description
===========================================================================
tape 0 0/5/1/0.9.12.0.0.0.1 atdd
CLAIMED DEVICE IBM
ULTRIUM-TD2
/dev/rmt/1m
/dev/rmt/1mnr
/dev/rmt/c22t0d1BESTnb /dev/rmt/s0mnb
/dev/rmt/1mb /dev/rmt/c22t0d1BEST /dev/rmt/s0m
/dev/rmt/1mn
/dev/rmt/c22t0d1BESTb
/dev/rmt/s0mb
/dev/rmt/1mnb
/dev/rmt/c22t0d1BESTn /dev/rmt/s0mn
[server1:/root]#
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