Nim configuration and pre install backup:
1. Register client on NIM server if it doens't exists already:
PS: THIS IS DONE ON THE CLIENT, NOT ON THE NIM SERVER. Replace YOUR_MASTER with your nim server's hostname.
# if [ $(oslevel|grep "^5") ]; then KERN=mp; else KERN=64; fi
# niminit -a name=$(hostname) -a pif_name="find_net $(hostname) 0" -a master=gznim -a platform=$(getconf MACHINE_ARCHITECTURE) -a netboot_kernel=${KERN} -a connect=nimshOr via SMITTY:
Configure Network Installation Management Client Fileset
Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[Entry Fields]
* Machine Name [gzlpar]
* Primary Network Install Interface [en0] +
* Host Name of Network Install Master [gznim]
Hardware Platform Type chrp
Kernel to use for Network Boot [mp] +
Communication Protocol used by client [nimsh] +
Ethernet Interface Options
Network Speed Setting [] +
Network Duplex Setting [] +
Comments []
Alternate Port Numbers for Network Communications
(reserved values will be used if left blank)
Client Registration [] #
Client Communications [] #Output (I had the client already configured):
Client:
# niminit 0042-041 niminit: /etc/niminfo already exists
Nim server:
[gznim:root:/home/root:] lsnim -l gzlpar gzlpar: class = machines type = standalone connect = nimsh platform = chrp netboot_kernel = mp if1 = vlan111 gzlpar 0 cable_type1 = N/A Cstate = ready for a NIM operation prev_state = lppchk operation is being performed Mstate = currently running cpuid = 00C659D24C00 Cstate_result = success
2. Perform backup of client system:
Via NIM master:
nim -o define -t mksysb -a server=master -a location=/export/mksysb/gzlpar/gzlpar_$(date +%Y%m%d%H%M%S)_sysb -a source=gzlpar -a mksysb_flags=eiX -a mk_image=yes gzlpar_bkp_premig
Or with mksysb from client (copy it outside the partition afterwards):
mksysb -eiX /backups-tmp/gzlpar-rootvg.sysb
Output:
[gznim:root:/home/root:] nim -o define -t mksysb -a server=master -a location=/export/mksysb/gzlpar/gzlpar_$(date +%Y%m%d%H%M%S)_sysb -a source=gzlpar -a mksysb_flags=eiX -a mk_image=yes gzlpar_bkp_premig
0042-001 nim: processing error encountered on "master":
0042-001 m_mkbosi: processing error encountered on "gzlpar":
warning: 0042-175 c_mkbosi: An unexpected result was returned by the
"/usr/sbin/mount" command:
mount: access denied for gznim:/export/mksysb/gzlpar
mount: giving up on:
gznim:/export/mksysb/gzlpar
Permission denied
rc=175
0042-175 c_mkbosi: An unexpected result was returned by the "/usr/sbin/mount" command:
mount: access denied for gznim:/export/mksysb/gzlpar
mount: giving up on:
gznim:/export/mksysb/gzlpar
Permission deniedThe error regarding Permission denied on nfs is because /etc/exports should be empty or should not have any entry related to nim operations. Once the conflict was fixed, the operation went OK:
[gznim:root:/home/root:] grep gzlpar /etc/exports
[gznim:root:/home/root:] grep mksysb /etc/exports
/export/mksysb -vers=4,sec=sys:krb5p:krb5i:krb5:dh,access=@192.168.195.0/26:@192.168.195.64/26:@192.168.195.128/27:@192.168.196.0/24:@192.168.195.160/27:@192.168.195.200/29:@192.168.194.0/24:@129.39.133.32/27:@129.39.133.50/27:@129.39.133.64/26:@129.39.133.128/25:@129.39.141.0/24:@129.39.141.128/26:@129.39.142.160/27:@129.39.143.0/26:@129.39.143.96/27:@129.39.143.160/27:@129.35.160.0/27:@129.35.166.0/28:@158.98.237.0/25:@129.39.142.96/27:@129.39.143.26/26:root=@192.168.195.0/26:@192.168.195.64/26:@192.168.195.128/27:@192.168.196.0/24:@192.168.195.160/27:@192.168.195.200/29:@192.168.194.0/24:@129.39.133.32/27:@129.39.133.50/27:@129.39.133.64/26:@129.39.133.128/25:@129.39.141.0/24:@129.39.141.128/26:@129.39.142.160/27:@129.39.143.0/26:@129.39.143.96/27:@129.39.143.160/27:@129.35.160.0/27:@129.35.166.0/28:@158.98.237.0/25:@129.39.142.96/27:@129.39.143.26/26:gznim,root=@192.168.195.0/26:@192.168.195.64/26:@192.168.195.128/27:@192.168.196.0/24:@192.168.195.160/27:@192.168.195.200/29:@192.168.194.0/24:@129.39.133.32/27:@129.39.133.50/27:@129.39.133.64/26:@129.39.133.128/25:@129.39.141.0/24:@129.39.141.128/26:@129.39.142.160/27:@129.39.143.0/26:@129.39.143.96/27:@129.39.143.160/27:@129.35.160.0/27:@129.35.166.0/28:@158.98.237.0/25:@129.39.142.96/27:@129.39.143.26/26:root=@192.168.195.0/26:@192.168.195.64/26:@192.168.195.128/27:@192.168.196.0/24:@192.168.195.160/27:@192.168.195.200/29:@192.168.194.0/24:@129.39.133.32/27:@129.39.133.50/27:@129.39.133.64/26:@129.39.133.128/25:@129.39.141.0/24:@129.39.141.128/26:@129.39.142.160/27:@129.39.143.0/26:@129.39.143.96/27:@129.39.143.160/27:@129.35.160.0/27:@129.35.166.0/28:@158.98.237.0/25:@129.39.142.96/27:@129.39.143.26/26:gznim
[gznim:root:/home/root:] exportfs -u /export/mksysb
[gznim:root:/home/root:] mv /etc/exports /etc/exports.tmp
[gznim:root:/home/root:] nim -o define -t mksysb -a server=master -a location=/export/mksysb/gzlpar/gzlpar_$(date +%Y%m%d%H%M%S)_sysb -a source=gzlpar -a mksysb_flags=eiX -a mk_image=yes gzlpar_bkp_premig
+---------------------------------------------------------------------+
System Backup Image Space Information
(Sizes are displayed in 1024-byte blocks.)
+---------------------------------------------------------------------+
Required = 11474417 (11206 MB) Available = 790102232 (771585 MB)
Creating information file (/image.data) for rootvg.
Creating list of files to back up
Backing up 86069 files..............................
14817 of 86069 files backed up (17%)......................
86069 of 86069 files backed up (100%)
0512-038 savevg: Backup Completed Successfully.
[gznim:root:/home/root:] ls -la /export/mksysb/gzlpar/gzlpar_*
-rw-r--r-- 1 root system 10699110400 Jan 8 13:28 /export/mksysb/gzlpar/gzlpar_20150108131936_sysb3. Make sure the fileset bos.alt_disk_install.rte is on the same level in NIM and in the SPOT used for migration:
# lslpp -l bos.alt_disk_install.rte # nim -o showres [SPOT_resource] | grep bos.alt_disk_install.rte # nim -o showres [lpp_source] | grep bos.alt_disk_install.rte
If you need to update lpp_source and spot with bos.alt_disk_install.rte fileset use following commands:
# nim -o update -a packages='bos.alt_disk_install.rte' -a source='[full_path]' -a show_progress=yes [lpp_source] # nim -o cust -a lpp_source=[lpp_source] -a filesets=bos.alt_disk_install.rte [spot]
The package can be downloaded from IBM website:
http://www-01.ibm.com/support/docview.wss?uid=isg1fileset1493029612
Alternatively, you can create a different spot and lpp_source on the same level with nim server but it's not mandatory.
There are different ways to get this done. I did it as following:
Downloaded lppsource from IBM website, then I have dowloaded the fix pack from fixcentral.
https://cirep.lge.fr.ibm.com/xarpages/home/aix_overview/install_new_server/aix_version_71
http://www-933.ibm.com/support/fixcentral/
Afterwards, I have created lpp_source (copied the downloaded files in /export/mksysb/global/71-03-04/, update it to latest level (same as nim) and created spot from it.
Lpp source creation:
# nim -o define -t lpp_source -a server=master -a location=/export/lpp_source/core/7.1/71-03-04 lppsource_71-03-04
Lpp source update:
# nim -o update -a packages=all -a source=/export/mksysb/global/71-03-04/ -a show_progress=yes lppsource_71-03-04[
Spot creation from lpp source and installation of bos.alt_disk_install.rte:
# nim -o define -t spot -a server=master -a location=/export/spot/7.1/ -a source=lppsource_71-03-04 spot_71-03-04 # nim -o cust -a lpp_source=lppsource_71-03-04 -a filesets=bos.alt_disk_install.rte spot_71-03-04
Checked again the levels of bos.alt_disk_install.rte:
# lslpp -l bos.alt_disk_install.rte # nim -o showres spot_71-03-04 | grep bos.alt_disk_install.rte # nim -o showres lppsource_71-03-04 | grep bos.alt_disk_install.rte
Output:
[gznim:root:/home/root:] oslevel -s
7100-03-04-1441
[gznim:root:/home/root:] lsnim |grep 71-03
lppsource_71-03-01 resources lpp_source
spot_71-03-01 resources spot
bundle_71-03-01 resources installp_bundle
bundle_X11_71-03-01 resources installp_bundle
bundle_NIMMASTER_71-03-01 resources installp_bundle
bundle_LDAP_71-03-01 resources installp_bundle
bundle_DIRECTOR_71-03-01 resources installp_bundle
[gznim:root:/home/root:] lslpp -l bos.alt_disk_install.rte
Fileset Level State Description
----------------------------------------------------------------------------
Path: /usr/lib/objrepos
bos.alt_disk_install.rte 7.1.3.30 APPLIED Alternate Disk Installation
Runtime
Path: /etc/objrepos
bos.alt_disk_install.rte 7.1.3.30 APPLIED Alternate Disk Installation
Runtime
[gznim:root:/home/root:] nim -o showres lppsource_71-03-01 | grep bos.alt_disk_install.rte
bos.alt_disk_install.rte 7.1.0.0 I N usr,root
bos.alt_disk_install.rte 7.1.2.15 S N usr,root
bos.alt_disk_install.rte 7.1.3.0 S N usr,root
[gznim:root:/home/root:] nim -o showres spot_71-03-01 | grep bos.alt_disk_install.rte
bos.alt_disk_install.rte 7.1.3.0 C F Alternate Disk Installation[gznim:root:/export/lpp_source/core/7.1:] nim -o define -t lpp_source -a server=master -a location=/export/lpp_source/core/7.1/71-03-04 lppsource_71-03-04
Preparing to copy install images (this will take several minutes)...
Now checking for missing install images...
All required install images have been found. This lpp_source is now ready.
[gznim:root:/export/lpp_source/core/7.1:] lsnim -l lppsource_71-03-04
lppsource_71-03-04:
class = resources
type = lpp_source
arch = power
Rstate = ready for use
prev_state = unavailable for use
location = /export/lpp_source/core/7.1/71-03-04
simages = yes
alloc_count = 0
server = master
[gznim:root:/export/lpp_source/core/7.1:] ls -la /export/lpp_source/core/7.1/71-03-04
total 264
drwxr-xr-x 3 root system 4096 Jan 9 12:42 .
drwxr-xr-x 9 root system 4096 Jan 8 17:01 ..
-rwx------ 1 root system 12767 Jan 9 12:42 AIX.71-03-01.tl.lppsource.install
-r--r----- 1 root system 49493 Jan 9 12:42 BuildServer_lppsource_list_AIX_71-03-01
-rw-r--r-- 1 root system 766 Jan 9 12:42 BuildServer_lppsource_list_AIX_71-03-01.log
-rw-r--r-- 1 root system 49724 Jan 9 12:42 BuildServer_lppsource_list_AIX_71-03-01_gznim
drwxr-xr-x 3 root system 256 Jan 9 12:42 installp
[gznim:root:/export/lpp_source/core/7.1:]
[gznim:root:/export/lpp_source/core/7.1:] nim -o update -a packages=all -a source=/export/mksysb/global/71-03-04/ -a show_progress=yes lppsource_71-03-04
/export/lpp_source/core/7.1/71-03-04/installp/ppc/infocenter.man.EN_US.libs.7.1.3.30.I
/export/lpp_source/core/7.1/71-03-04/installp/ppc/infocenter.man.EN_US.files.7.1.3.30.I
/export/lpp_source/core/7.1/71-03-04/installp/ppc/infocenter.man.EN_US.commands.7.1.3.30.I
/export/lpp_source/core/7.1/71-03-04/installp/ppc/rsct.opt.storagerm.3.2.0.0.I
/export/lpp_source/core/7.1/71-03-04/installp/ppc/rsct.opt.stackdump.3.2.0.0.I
/export/lpp_source/core/7.1/71-03-04/installp/ppc/rsct.opt.fence.3.2.0.0.I
/export/lpp_source/core/7.1/71-03-04/installp/ppc/rsct.core.3.2.0.0.I
[... useless output deleted ...]
[gznim:root:/export/lpp_source/core/7.1:]
[gznim:root:/home/root:] nim -o define -t spot -a server=master -a location=/export/spot/7.1/ -a source=lppsource_71-03-04 spot_71-03-04
Creating SPOT in "/export/spot/7.1/" on machine "master" from "lppsource_71-03-04" ...
Restoring files from BOS image. This may take several minutes ...
Installing filesets ...
Be sure to check the output from the SPOT installation
to verify that all the expected software was successfully
installed. You can use the NIM "showlog" operation to
view the installation log file for the SPOT.
+-----------------------------------------------------------------------------+
Pre-installation Verification...
+-----------------------------------------------------------------------------+
Verifying selections...done
Verifying requisites...done
Results...
[... useless output deleted ...]
+-----------------------------------------------------------------------------+
BUILDDATE Verification ...
+-----------------------------------------------------------------------------+
Verifying build dates...done
FILESET STATISTICS
------------------
952 Selected to be installed, of which:
834 Passed pre-installation verification
115 Replaced by superseding updates
3 Already installed (directly or via superseding filesets)
50 Additional requisites to be automatically installed
----
884 Total to be installed
+-----------------------------------------------------------------------------+
Installing Software...
+-----------------------------------------------------------------------------+
[... useless output deleted ...]
Checking filesets and network boot images for SPOT "spot_71-03-04".
This may take several minutes ...
[gznim:root:/home/root:]
[gznim:root:/home/root:] lslpp -l bos.alt_disk_install.rte
Fileset Level State Description
----------------------------------------------------------------------------
Path: /usr/lib/objrepos
bos.alt_disk_install.rte 7.1.3.30 APPLIED Alternate Disk Installation
Runtime
Path: /etc/objrepos
bos.alt_disk_install.rte 7.1.3.30 APPLIED Alternate Disk Installation
Runtime
[gznim:root:/home/root:] nim -o showres spot_71-03-04 | grep bos.alt_disk_install.rte
[gznim:root:/home/root:] nim -o showres lppsource_71-03-04 | grep bos.alt_disk_install.rte
bos.alt_disk_install.rte 7.1.0.0 I N usr,root
bos.alt_disk_install.rte 7.1.2.15 S N usr,root
bos.alt_disk_install.rte 7.1.3.0 S N usr,root
bos.alt_disk_install.rte 7.1.3.30 S N usr,root
[gznim:root:/home/root:]
[gznim:root:/home/root:] nim -o cust -a lpp_source=lppsource_71-03-04 -a filesets=bos.alt_disk_install.rte spot_71-03-04
Installing filesets ...
Be sure to check the output from the SPOT installation
to verify that all the expected software was successfully
installed. You can use the NIM "showlog" operation to
view the installation log file for the SPOT.
+-----------------------------------------------------------------------------+
Pre-installation Verification...
+-----------------------------------------------------------------------------+
Verifying selections...done
Verifying requisites...Verifying requisites...done
Results...
WARNINGS
--------
Problems described in this section are not likely to be the source of any
immediate or serious failures, but further actions may be necessary or
desired.
Superseded Fileset Updates
--------------------------
Fileset updates listed in this section will not be installed. Newer
updates which supersede (replace) these were selected instead (either by
you or automatically by the installation program). Make sure that the
superseding updates listed passed pre-installation verification.
bos.alt_disk_install.rte 7.1.2.15 (Superseded by 7.1.3.30)
bos.alt_disk_install.rte 7.1.3.0 (Superseded by 7.1.3.30)
<< End of Warning Section >>
SUCCESSES
---------
Filesets listed in this section passed pre-installation verification
and will be installed.
Selected Filesets
-----------------
bos.alt_disk_install.rte 7.1.0.0 # Alternate Disk Installation ...
bos.alt_disk_install.rte 7.1.3.30 # Alternate Disk Installation ...
<< End of Success Section >>
+-----------------------------------------------------------------------------+
BUILDDATE Verification ...
+-----------------------------------------------------------------------------+
Verifying build dates...done
FILESET STATISTICS
------------------
4 Selected to be installed, of which:
2 Passed pre-installation verification
2 Replaced by superseding updates
----
2 Total to be installed
+-----------------------------------------------------------------------------+
Installing Software...
+-----------------------------------------------------------------------------+
installp: APPLYING software for:
bos.alt_disk_install.rte 7.1.0.0
. . . . . << Copyright notice for bos.alt_disk_install >> . . . . . . .
Licensed Materials - Property of IBM
5765H4000
Copyright International Business Machines Corp. 1997, 2010.
All rights reserved.
US Government Users Restricted Rights - Use, duplication or disclosure
restricted by GSA ADP Schedule Contract with IBM Corp.
. . . . . << End of copyright notice for bos.alt_disk_install >>. . . .
0518-506 odmget: Cannot open object class file_overlay
Check path name and permissions.
0518-506 odmget: Cannot open object class file_overlay
Check path name and permissions.
Filesets processed: 1 of 2 (Total time: 2 secs).
installp: APPLYING software for:
bos.alt_disk_install.rte 7.1.3.30
. . . . . << Copyright notice for bos.alt_disk_install >> . . . . . . .
Licensed Materials - Property of IBM
5765H4000
Copyright International Business Machines Corp. 1997, 2014.
All rights reserved.
US Government Users Restricted Rights - Use, duplication or disclosure
restricted by GSA ADP Schedule Contract with IBM Corp.
. . . . . << End of copyright notice for bos.alt_disk_install >>. . . .
0518-506 odmget: Cannot open object class file_overlay
Check path name and permissions.
0518-506 odmget: Cannot open object class file_overlay
Check path name and permissions.
Finished processing all filesets. (Total time: 4 secs).
+-----------------------------------------------------------------------------+
Summaries:
+-----------------------------------------------------------------------------+
Pre-installation Failure/Warning Summary
----------------------------------------
Name Level Pre-installation Failure/Warning
-------------------------------------------------------------------------------
bos.alt_disk_install.rte 7.1.3.0 To be superseded by 7.1.3.30
bos.alt_disk_install.rte 7.1.2.15 To be superseded by 7.1.3.30
Installation Summary
--------------------
Name Level Part Event Result
-------------------------------------------------------------------------------
bos.alt_disk_install.rte 7.1.0.0 USR APPLY SUCCESS
bos.alt_disk_install.rte 7.1.0.0 ROOT APPLY SUCCESS
bos.alt_disk_install.rte 7.1.3.30 USR APPLY SUCCESS
bos.alt_disk_install.rte 7.1.3.30 ROOT APPLY SUCCESS
Checking filesets and network boot images for SPOT "spot_71-03-04".
This may take several minutes ...
[gznim:root:/home/root:] nim -o showres spot_71-03-04 | grep bos.alt_disk_install.rte
bos.alt_disk_install.rte 7.1.3.30 A F Alternate Disk InstallationPrerequisites:
Check that the previous install has been committed, in order to save place in /usr
Commit all packages with SMIT (smitty commit) or with the commands below:
# /usr/lib/instl/sm_inst installp_cmd -c -f'all' '-g' '-X' - Verification # lslpp -l | grep -i applied # installp -s all # lppchk -v
Output (installp command could give you different output if you still have APPLIED packages so do not worry - it will apply them for you.):
# /usr/lib/instl/sm_inst installp_cmd -c -f'all' '-g' '-X' - Verification
installp -cgX -J -f File 2>&1
File:
all
+-----------------------------------------------------------------------------+
Pre-commit Verification...
+-----------------------------------------------------------------------------+
Verifying selections...done
Verifying requisites...done
Results...
WARNINGS
--------
Problems described in this section are not likely to be the source of any
immediate or serious failures, but further actions may be necessary or
desired.
Nothing to Commit
-----------------
There is nothing in the APPLIED state that needs to be committed.
<< End of Warning Section >>
# lslpp -l | grep -i applied
# installp -s all
installp: No filesets were found in the Software
Vital Product Database in the APPLIED state.
# lppchk -v
#Space verification:
The filesystem /tmp must have at least 1GB free.
The filesystem /var must have at least 1GB free.
The filesystem / must have at least 10M free.
The filesystem /usr must have at least 1G free.
The filesystem /opt must have at least 10M free.
Minimum Paging Space 512M.
Minimum Free Memory 128M.
Minimum rootvg free space 500M.
Output:
# df -m /tmp /var / /usr /opt
Filesystem MB blocks Free %Used Iused %Iused Mounted on
/dev/hd3 10688.00 5165.45 52% 383 1% /tmp
/dev/hd9var 880.00 350.00 61% 5521 7% /var
/dev/hd4 128.00 68.41 47% 5216 24% /
/dev/hd2 3584.00 796.55 78% 56950 24% /usr
/dev/hd10opt 640.00 27.65 96% 8600 54% /opt
# lsvg rootvg |grep FREE
MAX LVs: 256 FREE PPs: 738 (47232 megabytes)
# lsps -s
Total Paging Space Percent Used
8192MB 1%
# chfs -a size=+1G /var
Filesystem size changed to 3932160
# df -g /var
Filesystem GB blocks Free %Used Iused %Iused Mounted on
/dev/hd9var 1.88 1.35 29% 5521 2% /var
/dev/hd9var 1920.00 1380.67 29% 5524 2% /varCheck the length of LV names in rootvg:
Long names (above 12 chars) will bring problems during the alternate rootvg creation, because they are renamed by adding alt_ prefix.
If command returns one or more LV(s), rename them to stay below 12 digits. If no output, you are good to move forward.
# lsvg -l rootvg | egrep -v "^rootvg|POINT$" | awk '{system("printf "$1"; printf "$1" | wc -m")}' | awk '{if ($2>12) {print $1,$2}}'Expected output (none):
# lsvg -l rootvg | egrep -v "^rootvg|POINT$" | awk '{system("printf "$1"; printf "$1" | wc -m")}' | awk '{if ($2>12) {print $1,$2}}'
#Check Scheduled Jobs
Jobs that are scheduled during the migration, should be removed or rescheduled.
# crontab -l
Also, all at jobs should be removed by moving the file /var/spool/cron/atjobs.
You can verify that no jobs are scheduled by running the following command:
# at -l
Save the following files if you have edited them:
/usr/adm/cron/at.allow /usr/adm/cron/at.deny /usr/adm/cron/cron.allow /usr/adm/cron/cron.deny
Backup and disable root crontab (remember the saved file, you will have to restore it after the migration):
# crontab -l > premigration.crontab # crontab -r
Output:
# ls -la /usr/adm/cron/cron.* -rw-r----- 1 bin cron 3 May 27 2008 /usr/adm/cron/cron.deny # ls -la /usr/adm/cron/at.* -rw-r----- 1 bin cron 4 May 27 2008 /usr/adm/cron/at.deny # cat /usr/adm/cron/at.deny # # cat /usr/adm/cron/cron.deny # # crontab -l > premigration.crontab # crontab -r # crontab -l can't open yourfile in /var/spool/cron/crontabs directory. No such file or directory
Backup some files which could be modified during OS migration (if required):
# cp -p /etc/motd /etc/motd.pre71 # cp -p /etc/mail/sendmail.cf /etc/mail/sendmail.cf.pre71
Output:
# cp -p /etc/motd /etc/motd.pre71 # cp -p /etc/mail/sendmail.cf /etc/mail/sendmail.cf.pre71 # ls -la /etc/motd* -r--r--r-- 1 bin bin 997 May 28 2008 /etc/motd -r--r--r-- 1 bin bin 997 May 28 2008 /etc/motd.pre71 # ls -la /etc/mail/sendmail.cf* -r-xr--r-- 1 root system 47410 Jan 26 2011 /etc/mail/sendmail.cf -r-xr--r-- 1 root system 47410 Jan 26 2011 /etc/mail/sendmail.cf.pre71
Prepare secondary hdisk for rootvg cloning:
a. check if rootvg is mirrored and if yes, check the correct symetric <LV> distribution over PV:
# bootlist -m normal -o # lsvg -l rootvg # lsvg -p rootvg # lspv -l hdiskX > lspv_hdiskX # lspv -l hdiskY > lspv_hdiskY # diff lspv_hdiskX lspv_hdiskY
b. Check last boot disks and DO NOT REMOVE this one:
# bootinfo -b
c. Remove the second disk from mirror (assuming the 2nd disk in our case is hdisk2):
# unmirrorvg -c 1 rootvg hdisk2 # chpv -c hdisk2 # lsvg -p rootvg
d. Check that hdisk2 is totally free and no more LV left on hdisk2:
# lspv -l hdisk2
If there are still LVs left, you will have to move them to another disk. At the end, the command lspv -l hdisk2 should display nothing.
# migratepv –l <whatever_lv_was_left> hdisk2 hdisk0 # lsvg –p rootvg # lspv –l hdisk2
e. Remove the disk from rootvg. Hdisk2 should not be part of any VG after that.
# reducevg rootvg hdisk2
# lsvg -p rootvg
# lspv
Output:
# bootlist -m normal -o
hdisk0 blv=hd5
hdisk0 blv=hd5
hdisk0 blv=hd5
hdisk0 blv=hd5
hdisk0 blv=hd5
# lsvg -l rootvg
rootvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
hd5 boot 1 2 2 closed/syncd N/A
hd6 paging 128 256 2 open/syncd N/A
hd8 jfs2log 1 2 2 open/syncd N/A
hd4 jfs2 2 4 2 open/syncd /
hd2 jfs2 56 112 2 open/syncd /usr
hd9var jfs2 30 60 2 open/syncd /var
hd3 jfs2 167 334 2 open/syncd /tmp
hd1 jfs2 4 8 2 open/syncd /home
hd10opt jfs2 10 20 2 open/syncd /opt
lv02 jfs 25 50 2 open/syncd /Depot
dooncelv jfs2 2 4 2 open/syncd /DoOnceAIX
loglv00 jfslog 1 2 2 open/syncd N/A
lv03 jfs 1 2 2 open/syncd /opt/Tivoli
dumplv jfs2 1 2 2 open/syncd /var/adm/ras/dump_copydir
srmlv jfs2 1 2 2 open/syncd /var/adm/perfmgr
# lsvg -p rootvg
rootvg:
PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION
hdisk0 active 799 369 67..00..00..144..158
hdisk2 active 799 369 67..00..00..144..158
# lspv -l hdisk0 > lspv_hdisk0
# lspv -l hdisk2 > lspv_hdisk2
# diff lspv_hdisk0 lspv_hdisk2
1c1
< hdisk0:
---
> hdisk2:
# bootinfo -b
hdisk0
# lsvg -p rootvg
rootvg:
PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION
hdisk0 active 799 369 67..00..00..144..158
hdisk2 active 799 369 67..00..00..144..158
# unmirrorvg -c 1 rootvg hdisk2
0516-1246 rmlvcopy: If hd5 is the boot logical volume, please run 'chpv -c <diskname>'
as root user to clear the boot record and avoid a potential boot
off an old boot image that may reside on the disk from which this
logical volume is moved/removed.
0516-1804 chvg: The quorum change takes effect immediately.
0516-1144 unmirrorvg: rootvg successfully unmirrored, user should perform
bosboot of system to reinitialize boot records. Then, user must modify
bootlist to just include: hdisk0.
# chpv -c hdisk2
# lsvg -p rootvg
rootvg:
PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION
hdisk0 active 799 369 67..00..00..144..158
hdisk2 active 799 799 160..160..159..160..160
# lspv -l hdisk2
# reducevg rootvg hdisk2
# lsvg -p rootvg
rootvg:
PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION
hdisk0 active 799 369 67..00..00..144..158
# lspv
hdisk0 00c659d2534e5277 rootvg active
hdisk1 00c659d25360587d datavg active
hdisk2 00c659d25362656a None
hdisk3 00c659d25cf44eb0 datavg activePS: If you do not have rootvg mirrored or do not have an extra free disk, you will have to add one to the machine. This part is not covered here.
Uninstall the following AIX.DoOnce packages (IBM internal specific):
AIX.DoOnce.SecurityTool.rte AIX.DoOnce.CustomTool.rte
lslpp -l | grep DoOnce installp -u AIX.DoOnce.SecurityTool.rte installp -u AIX.DoOnce.CustomTool.rte
Output:
# lslpp -l | grep DoOnce
AIX.DoOnce.CustomTool.rte 5.4.0.0 COMMITTED AIX Do Once Custom Tool
AIX.DoOnce.SecurityTool.rte
# installp -u AIX.DoOnce.SecurityTool.rte
+-----------------------------------------------------------------------------+
Pre-deinstall Verification...
+-----------------------------------------------------------------------------+
Verifying selections...done
Verifying requisites...done
Results...
SUCCESSES
---------
Filesets listed in this section passed pre-deinstall verification
and will be removed.
Selected Filesets
-----------------
AIX.DoOnce.SecurityTool.rte 6.6.0.0 # AIX Do Once Security Tool (I...
<< End of Success Section >>
FILESET STATISTICS
------------------
1 Selected to be deinstalled, of which:
1 Passed pre-deinstall verification
----
1 Total to be deinstalled
+-----------------------------------------------------------------------------+
Deinstalling Software...
+-----------------------------------------------------------------------------+
installp: DEINSTALLING software for:
AIX.DoOnce.SecurityTool.rte 6.6.0.0
Finished processing all filesets. (Total time: 1 secs).
+-----------------------------------------------------------------------------+
Summaries:
+-----------------------------------------------------------------------------+
Installation Summary
--------------------
Name Level Part Event Result
-------------------------------------------------------------------------------
AIX.DoOnce.SecurityTool.rte 6.6.0.0 USR DEINSTALL SUCCESS
# installp -u AIX.DoOnce.CustomTool.rte
+-----------------------------------------------------------------------------+
Pre-deinstall Verification...
+-----------------------------------------------------------------------------+
Verifying selections...done
Verifying requisites...done
Results...
SUCCESSES
---------
Filesets listed in this section passed pre-deinstall verification
and will be removed.
Selected Filesets
-----------------
AIX.DoOnce.CustomTool.rte 5.4.0.0 # AIX Do Once Custom Tool
<< End of Success Section >>
FILESET STATISTICS
------------------
1 Selected to be deinstalled, of which:
1 Passed pre-deinstall verification
----
1 Total to be deinstalled
+-----------------------------------------------------------------------------+
Deinstalling Software...
+-----------------------------------------------------------------------------+
installp: DEINSTALLING software for:
AIX.DoOnce.CustomTool.rte 5.4.0.0
Finished processing all filesets. (Total time: 2 secs).
+-----------------------------------------------------------------------------+
Summaries:
+-----------------------------------------------------------------------------+
Installation Summary
--------------------
Name Level Part Event Result
-------------------------------------------------------------------------------
AIX.DoOnce.CustomTool.rte 5.4.0.0 USR DEINSTALL SUCCESS
# lslpp -l | grep DoOnce
#Check if client has TCB enabled, if yes either perform traditional installation or disable TCB permanently
If TCB is disabled and then after migration it is re-enabled, it will damage the system. Also, if TCB is not disabled, the migration will fail.
1. Check if TCB is enabled:
#odmget -q attribute=TCB_STATE PdAt
2. If the output of above command contains tcb_enabled:
# odmget -q attribute=TCB_STATE PdAt | sed 's/tcb_enabled/tcb_disabled/'| odmchange -o PdAt -q attribute=TCB_STATE
Output (in my case, it was disabled):
# odmget -q attribute=TCB_STATE PdAt | grep deflt
deflt = "tcb_disabled"Verify AIO configuration on servers hosting databases (you may need it after the migration):
# lsdev -Cl aio0 # lsattr -El aio0
Output:
# lsdev -Cl aio0 aio0 Defined Asynchronous I/O (Legacy) # lsattr -El aio0 autoconfig defined STATE to be configured at system restart True fastpath enable State of fast path True kprocprio 39 Server PRIORITY True maxreqs 4096 Maximum number of REQUESTS True maxservers 10 MAXIMUM number of servers per cpu True minservers 1 MINIMUM number of servers True
The Migration
Before starting the migration, as with all nim operations, make sure you won't get any nfs conflicts so clear out /etc/exports and unexport (exportfs -u /mount/point) any nim directory that could interfere with this operation.
nimadm -c [client_name] -s [SPOT] -l [lpp_source] -d [destination_drive] -Y
Output:
[gznim:root:/home/root:] nimadm -c gzlpar -l lppsource_71-03-04 -s spot_71-03-04 -d hdisk2 -Y Initializing the NIM master. Initializing NIM client gzlpar. Verifying alt_disk_migration eligibility. Initializing log: /var/adm/ras/alt_mig/gzlpar_alt_mig.log Starting Alternate Disk Migration. +-----------------------------------------------------------------------------+ Executing nimadm phase 1. +-----------------------------------------------------------------------------+ Cloning altinst_rootvg on client, Phase 1. Client alt_disk_install command: alt_disk_copy -M 7.1 -P1 -d "hdisk2" Calling mkszfile to create new /image.data file. Checking disk sizes. Creating cloned rootvg volume group and associated logical volumes. Creating logical volume alt_hd5. Creating logical volume alt_hd6. Creating logical volume alt_hd8. Creating logical volume alt_hd4. Creating logical volume alt_hd2. Creating logical volume alt_hd9var. Creating logical volume alt_hd3. Creating logical volume alt_hd1. Creating logical volume alt_hd10opt. Creating logical volume alt_lv02. Creating logical volume alt_dooncelv. Creating logical volume alt_loglv00. Creating logical volume alt_lv03. Creating logical volume alt_dumplv. Creating logical volume alt_srmlv. Creating logical volume alt_hd11admin. Creating /alt_inst/ file system. Creating /alt_inst/Depot file system. Creating /alt_inst/DoOnceAIX file system. Creating /alt_inst/admin file system. Creating /alt_inst/home file system. Creating /alt_inst/opt file system. Creating /alt_inst/opt/Tivoli file system. Creating /alt_inst/tmp file system. Creating /alt_inst/usr file system. Creating /alt_inst/var file system. Creating /alt_inst/var/adm/perfmgr file system. Creating /alt_inst/var/adm/ras/dump_copydir file system. Generating a list of files for backup and restore into the alternate file system... Backing-up the rootvg files and restoring them to the alternate file system... Phase 1 complete. +-----------------------------------------------------------------------------+ Executing nimadm phase 2.
During the process, if you are curious, you can check from time to time with different terminal, the output of command lsnim -l tsmmgr:
[gznim:root:/home/root:] lsnim -l gzlpar gzlpar: class = machines type = standalone connect = nimsh platform = chrp netboot_kernel = mp if1 = vlan111 gzlpar 0 cable_type1 = N/A Cstate = ready for a NIM operation prev_state = lppchk operation is being performed Mstate = currently running lpp_source = lppsource_71-03-04 spot = spot_71-03-04 cpuid = 00C659D24C00 control = master Cstate_result = success [gznim:root:/home/root:] lsnim -l gzlpar gzlpar: class = machines type = standalone locked = 11337944 connect = nimsh platform = chrp netboot_kernel = mp if1 = vlan111 gzlpar 0 cable_type1 = N/A Cstate = alt_disk_mig operation is being performed prev_state = ready for a NIM operation Mstate = currently running lpp_source = lppsource_71-03-04 spot = spot_71-03-04 cpuid = 00C659D24C00 control = master Cstate_result = success [gznim:root:/home/root:] cat /etc/exports /export/lpp_source/core/7.1/71-03-04 -ro,root=gzlpar,access=gzlpar /export/spot/7.1/spot_71-03-04/usr -ro,root=gzlpar,access=gzlpar
Also, if you check the partition, you will see the unallocated disk is now part of alternate rootvg and extra mounts are present:
# lspv hdisk0 00c659d2534e5277 rootvg active hdisk1 00c659d25360587d datavg active hdisk2 00c659d25362656a altinst_rootvg active hdisk3 00c659d25cf44eb0 datavg active # df | grep alt /dev/alt_hd4 262144 140136 47% 5240 25% /alt_inst /dev/alt_lv02 3276800 158216 96% 433 1% /alt_inst/Depot /dev/alt_dooncelv 262144 255616 3% 141 1% /alt_inst/DoOnceAIX /dev/alt_hd11admin 262144 261448 1% 4 1% /alt_inst/admin /dev/alt_hd1 524288 62872 89% 4069 36% /alt_inst/home /dev/alt_hd10opt 1310720 56664 96% 8600 54% /alt_inst/opt /dev/alt_lv03 131072 126872 4% 17 1% /alt_inst/opt/Tivoli /dev/alt_hd3 21889024 10569680 52% 382 1% /alt_inst/tmp /dev/alt_hd2 7340032 5562136 25% 6346 2% /alt_inst/usr /dev/alt_hd9var 3932160 3930840 1% 8 1% /alt_inst/var /dev/alt_srmlv 131072 130392 1% 4 1% /alt_inst/var/adm/perfmgr /dev/alt_dumplv 131072 130392 1% 4 1% /alt_inst/var/adm/ras/dump_copydir
At the end, if you do not have any errors (normally everything should go smoothly), you just reboot to hdisk2 and you will find yourself in the migrated environment. And if for whatever reason you are not satisfied with this new version, you can always rollback by rebooting into hdisk0. Neat, huh?
