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AIX Migration issue with EMC ODM sets


 
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Operating Systems AIX AIX Migration issue with EMC ODM sets
# 1  
AIX Migration issue with EMC ODM sets

Hi Experts , I want to start migrating our AIX 6.1 to AIX 7.1 . I am planning to use alt_disk_migration . Chris gibson has awesome documentation in the internet. However I am running into an issue with EMC odm filesets . So my current OS is AIX 6.1. and I have this :
Code:
lslpp -l | grep EMC
  EMC.CLARiiON.aix.rte       5.3.0.9  COMMITTED  EMC CLARiiON AIX Support
  EMC.CLARiiON.fcp.rte       5.3.0.9  COMMITTED  EMC CLARiiON FCP Support

-------------
But if I migrate to AIX 7.1 these are not compatible, because bos.rte will be 7.1. ( i tested trying to install those on a clean AIX 7.1 and failed)
For AIX 7.1 we need the EMC.CLARION.AIX.rte 6.0.0.2 or something. So Now I have dilemma here . I can't install those before migration because we are still in AIX 6.1 . But I can't migrate to AIX 7.1 with EMC.CLARiiON.aix.rte 5.3.0.9, because it is not good with AIX 7.1. See the problem I have here. I was thinking uninstall those before migration , then I feel like this is too risky for production environment. Any body has any idea, all the help will be appreciated very highly !

Last edited by Don Cragun; 11-11-2015 at 12:39 AM.. Reason: Add CODE and ICODE tags.
# 2  
I don't think you really need your disks during the migration ;-) After you made alt_rootvg, you can wake it up and remove the filesets. After booting in new AIX you install the new versions.

Waking up alt_rootvg: alt_rootvg_op -W -d hdiskX
Removing filesets in alt_rootvg: INUCLIENTS=1 chroot /alt_inst /usr/sbin/installp -u 'EMC.CLARiiON.*'
Putting alt_rootvg back to sleep: alt_rootvg_op -S -t -d hdiskX

Of course, if your rootvg doesn't reside on EMC storage using NPIV or dedicated FC.
# 3  
Thanks agent.kgb.
You can't wake the altinst_rootvg in this situation . This will only work if it is a TL upgrade. otherwise
Code:
alt_rootvg_op -W -d hdiskX

will give you some sort of error , saying can't wake up the vg because current version is lower than alt_rootvg, something like that. I am thinking doing some sort of post install script . keep you posted

Last edited by Don Cragun; 11-11-2015 at 12:41 AM.. Reason: Add CODE and ICODE tags.
# 4  
The other thing, of course, is to ask EMC for their advice.

Also, IBM support should have some ideas. I would hope that the binary compatibility between AIX 6.1 and AIX 7.1 would let you at least install/migrate AIX and reboot.

If I read/understood you correctly - it is sad that EMC will not permit you to update their drivers on AIX 6.1 (or on the alt_install).

And, thanks for your willingness to keep us current on your progress!

Michael
# 5  
Thanks for everyone for trying to help .So i did test migration with NIMADM , After migration i upgraded EMC odm, now it looks like below (not sure why it is showing two of same fileset) . so far it works, this server has only two LUNs, (test server) no application or anything running on the server. I will know more when I do that on the real server, hope everything runs okay . I need to figure it out how to put that in the lpp_source. EMC is such a pain , one image file came with Symmetrixc, clariion, CELERRA together, i need to separate those install only CLARiiON. I need to figure it out how to add that only in the lpp_source, smit installp take care of that easily, not in this case, or maybe I am just dumb .
Code:
lslpp -l | grep EMC 
EMC.CLARiiON.aix.rte 6.0.0.2 COMMITTED EMC CLARiiON AIX Support 
EMC.CLARiiON.fcp.rte 6.0.0.2 COMMITTED EMC CLARiiON FCP Support 
EMC.INVISTA.aix.rte 6.0.0.2 COMMITTED EMC INVISTA AIX Support 
EMC.INVISTA.fcp.rte 6.0.0.2 COMMITTED EMC INVISTA FCP Support 
EMC.XtremIO.fcp.rte 5.3.0.9 COMMITTED EMC XtremIO FCP Support 
EMCpower.MgmtComponent 5.7.2.0 COMMITTED PowerPath Management 
EMCpower.base 5.7.2.0 COMMITTED PowerPath Base Driver and 
EMCpower.migration_enabler 
EMCpower.mpx 5.7.2.0 COMMITTED PowerPath Multi_Pathing 
EMC.CLARiiON.aix.rte 6.0.0.2 COMMITTED EMC CLARiiON AIX Support 
EMC.CLARiiON.fcp.rte 6.0.0.2 COMMITTED EMC CLARiiON FCP Support 
EMC.INVISTA.aix.rte 6.0.0.2 COMMITTED EMC INVISTA AIX Support 
EMC.INVISTA.fcp.rte 6.0.0.2 COMMITTED EMC INVISTA FCP Support


Last edited by Don Cragun; 11-11-2015 at 12:42 AM.. Reason: Add CODE and ICODE tags.
# 6  
test server.

Code:
# oslevel -s
6100-08-03-1339
# lslpp -L EMC\*
  Fileset                      Level  State  Type  Description (Uninstaller)
  ----------------------------------------------------------------------------
  EMC.CLARiiON.aix.rte       5.3.0.8    C     F    EMC CLARiiON AIX Support
                                                   Software
  EMC.CLARiiON.fcp.rte       5.3.0.8    C     F    EMC CLARiiON FCP Support
                                                   Software


# lsdev -Cc disk | grep Virtual
hdisk0 Available          Virtual SCSI Disk Drive
hdisk9 Available          Virtual SCSI Disk Drive
# getconf DISK_SIZE /dev/hdisk0
40960
# getconf DISK_SIZE /dev/hdisk9
40960
# lsvg -p rootvg
rootvg:
PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION
hdisk0            active            639         583         127..100..100..128..128

NIM:
Code:
# lsnim -t mksysb  | grep test
test_mksysb         resources       mksysb
# lsnim -l test_mksysb | grep location
   location      = /export/mksysb/test.mksysb
# cp /export/mksysb/test.mksysb /export/mksysb/test.mksysb.bak
# nim -Fo remove test_mksysb
# nim -o define -t mksysb -a server=master -a location=/export/mksysb/test.mksysb -a mk_image=yes -a source=test -a mksysb_flags="Xipa" test_mksysb

+---------------------------------------------------------------------+
                System Backup Image Space Information
              (Sizes are displayed in 1024-byte blocks.)
+---------------------------------------------------------------------+

Required = 1117817 (1092 MB)    Available = 385141436 (376115 MB)

Expanding /tmp.
Filesystem size changed to 262144

Creating information file (/image.data) for rootvg.

Creating list of files to back up

Backing up 26830 files........

26830 of 26830 files backed up (100%)
0512-038 savevg: Backup Completed Successfully.

# nimadm -T test_mksysb -O /export/mksysb/test_upgraded -s spot_71_03_05 -l lpp_71_03_05 -j vg1 -Y

... a lot of output ...

# ls -l /export/mksysb/*test*
-rw-r-----    1 nobody   nobody   1124710400 Nov 11 11:05 test.mksysb
-rw-r--r--    1 root     system    943564800 Nov 11 11:58 test_upgraded

Copy new mksysb to the NIM client

Test server:
Code:
# nimclient -o cust -a lpp_source=lpp_71_03_05 -a filesets='bos.alt_disk_install'
# alt_disk_mksysb -m /tmp/test_upgraded -d hdisk9 -B

... a lot of output ...

 lspv | grep -E '^hdisk(0|9)'
hdisk0          00f91ab70e53153d                    rootvg          active
hdisk9          00cba4a7f647aa36                    altinst_rootvg

# bootlist -m normal -o
hdisk0 blv=hd5 pathid=0
hdisk0 blv=hd5 pathid=1
# bootlist -m normal hdisk9

# reboot -q

After reboot:

Code:
# oslevel -s
7100-03-05-1524

# lslpp -L EMC\*
  Fileset                      Level  State  Type  Description (Uninstaller)
  ----------------------------------------------------------------------------
  EMC.CLARiiON.aix.rte       5.3.0.8    C     F    EMC CLARiiON AIX Support
                                                   Software
  EMC.CLARiiON.fcp.rte       5.3.0.8    C     F    EMC CLARiiON FCP Support
                                                   Software
# mount -o soft nfs_server:/share /mnt
# cd /mnt/EMC/ODM/6.0.0.5
# update_all -Y -d .
....
Installation Summary
--------------------
Name                        Level           Part        Event       Result
-------------------------------------------------------------------------------
EMC.CLARiiON.aix.rte        6.0.0.5         USR         APPLY       SUCCESS
EMC.CLARiiON.fcp.rte        6.0.0.5         USR         APPLY       SUCCESS

    * * *  A T T E N T I O N  * * *
    System boot image has been updated. You must reboot the system
    after install_all_updates completes to properly integrate the updates.

install_all_updates: Checking for recommended maintenance level 7100-03.
install_all_updates: Executing /usr/bin/oslevel -rf, Result = 7100-03
install_all_updates: Verification completed.
install_all_updates: Log file is /var/adm/ras/install_all_updates.log
install_all_updates: Result = SUCCESS

# lslpp -L EMC\*
  Fileset                      Level  State  Type  Description (Uninstaller)
  ----------------------------------------------------------------------------
  EMC.CLARiiON.aix.rte       6.0.0.5    C     F    EMC CLARiiON AIX Support
                                                   Software
  EMC.CLARiiON.fcp.rte       6.0.0.5    C     F    EMC CLARiiON FCP Support
                                                   Software

reboot and ready. But if you've read the whole output, you seen that I've used lpp_source for the update. I don't have EMC ODM filesets in the lpp_source, but it is not so difficult to do. If they were there, they were updated together with the base OS.

something like:
Code:
nim# nim -o update -a source=/directory/where/new/EMC/ODM/resides -a packages=all lpp_71_03_05

then you don't even need to update them manually and to reboot the server again.
This User Gave Thanks to agent.kgb For This Post:
# 7  
Wow ! agent.kgb you rock, I will try that and let you know. How did you get all these output? , looks like your environment is same like ours. You truly are helpful person

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