December 2011

AIX – loopmount

/ AIX / By

Finally on aix 6.1 ibm have introduced mounting of iso directly without raw copy on lv:

Check if necessary loopback device is available

# lsdev -C | grep loop

if nothing returned, run:

# mkdev -c loopback -s node -t loopback
loop0 Available

If the device is not present on system you get this error:

1320-003 loopmount: Specified loopback device is not found in ODM

Now for mount:

# loopmount -i /iso/dvd.iso -l loop0 -o "-V cdrfs -o ro" -m /mnt/dvd

And umount:

# loopumount -l loop0 -m /mnt/dvd

Attention: an image file can be associated with only one loopback device.

VIO – iso virtual DVD

/ AIX / By

Example of PowerVM virtual dvd setup:

login: padmin
padmin's Password:
1 unsuccessful login attempt since last login.
Last unsuccessful login: Mon Jan 31 18:51:28 CST 2011 on /dev/vty0
Last login: Mon Jan 31 18:28:29 CST 2011 on /dev/vty0

$
$ mkrep -sp rootvg -size 10G
Virtual Media Repository Created
Repository created within "VMLibrary" logical volume
$ mkvopt -name 6_1_6osp.iso -dev cd0 -ro
$
$ mkvdev -vadapter vhost1 -fbo -dev vcd1
vcd0 Available
$ loadopt -vtd vcd0 -disk 6_1_6osp.iso
$ unloadopt -vtd vcd0

Linux – IBM LinTape driver

/ Linux / By

If you need to user ibm lto tape drive inside IBM, Adic, Dell tapelibrary, with Tivoli Storage Manager is necessary to use

Download latest driver from IBM Fixcentral:
Storage Systems => Tape Systems => Tape device drivers and software => Linux

Get two two RPMs (my system is an RHEL 5 on 32bit hardware) :
lin_tape-1.61.0-1.src.rpm <== Kernel module
lin_taped-1.61.0-rhel5.i386.rpm <== Binary services

First step, rebuild the source:

# rpmbuild --rebuild lin_tape-1.61.0-1.src.rpm

Installing lin_tape-1.61.0-1.src.rpm
Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.625
+ umask 022
+ cd /usr/src/redhat/BUILD
+ cd /usr/src/redhat/BUILD
+ rm -rf lin_tape-1.61.0
+ /bin/gzip -dc /usr/src/redhat/SOURCES/lin_tape-1.61.0.tgz
[cut]
Wrote: /usr/src/redhat/RPMS/i386/lin_tape-1.61.0-1.i386.rpm
Executing(%clean): /bin/sh -e /var/tmp/rpm-tmp.18792
+ umask 022
+ cd /usr/src/redhat/BUILD
+ cd lin_tape-1.61.0
+ rm -rf /var/tmp/lin_tape-1.61.0-1-root-root
+ exit 0
Executing(--clean): /bin/sh -e /var/tmp/rpm-tmp.18792
+ umask 022
+ cd /usr/src/redhat/BUILD
+ rm -rf lin_tape-1.61.0
+ exit 0

Second step, install all:

# rpm -Uhv /usr/src/redhat/RPMS/i386/lin_tape-1.61.0-1.i386.rpm
# rpm -Uhv lin_taped-1.61.0-rhel5.i386.rpm

Last step, start service and check for the probed devices:

# /etc/init.d/lin_tape start

# cat /proc/scsi/IBM*
lin_tape version: 1.61.0
lin_tape major number: 253
Attached Changer Devices:
Number model SN HBA SCSI FO Path
lin_tape version: 1.61.0
lin_tape major number: 253
Attached Tape Devices:
Number model SN HBA SCSI FO Path
0 ULTRIUM-TD2 1110274799 Adaptec 29160B Ultra160 SCSI 2:0:1:0 NA
1 ULTRIUM-TD2 1110275058 Adaptec 29160B Ultra160 SCSI 2:0:2:0 NA

AIX – lpp incosistent

/ AIX / By

# lppchk –v

lppchk: The following filesets need to be installed or corrected to bring the system to a consistent state:
9a33182fe26f1beae04e59e5cb6d3cdb 0.0.0.0 (COMMITTED)

# lslpp -L

Backup the ODM using the following command:

# tar -cvf /tmp/odm.tar ./etc/objrepos ./usr/lib/objrepos
# export ODMDIR=/usr/lib/objrepos
# odmget -q name= lpp
# odmdelete -q name= -o lpp
# odmdelete -q lpp_name= -o product
# odmdelete -q lpp_id= -o history
# odmdelete -q lpp_id= -o inventory
# export ODMDIR=/etc/objrepos
# odmdelete -q name= -o lpp
# odmdelete -q lpp_name= -o product
# odmdelete -q lpp_id= -o history
# odmdelete -q lpp_id= -o inventory
# export ODMDIR=/etc/objrepos

Check lppchk -v again to see if those entries are gone from ODM

AIX – Warning, savebase failed

/ AIX / By

0516-1734 extendlv: Warning, savebase failed. Please manually run ‘savebase’ before rebooting.

If you run savebase -v and you get “non-bootable LV name given” try reconstucting your /dev/ipldevice file.

Run savebase -v again and if you get the same error, try follow procedure:

# bosboot -ad /dev/hdiskX (a disk that has hd5 on it)
# bosboot -ad /dev/hdiskY (a disk that has hd5 on it)
# ipl_varyon -i

[You’ll get a return on every physical disk on the system]

You will then get a return similar to this:

# savebase -v

saving to ‘/dev/hd5’
99 CuDv objects to be saved
240 CuAt objects to be saved
44 CuDep objects to be saved
51 CuVPD objects to be saved
407 CuDvDr objects to be saved
5 CuPath objects to be saved
0 CuPathAt objects to be saved
0 CuData objects to be saved
0 CuAtDef objects to be saved
Number of bytes of data to save = 49587
Compressing data
Compressed data size is = 12069
bi_start = 0x3600
bi_size = 0x1820000
bd_size = 0x1800000
ram FS start = 0x8d6ca0
ram FS size = 0xea34cf
sba_start = 0x1803600
sba_size = 0x20000
sbd_size = 0x2f29
Checking boot image size:
new save base byte cnt = 0x2f29
Wrote 12073 bytes
Successful completion

AIX – lslpp

/ AIX / By

Memo: lslpp

List the package that owns a file

# lslpp -w

List the files in a package

# lslpp -f

List all packages installed

# lslpp -L