Re: [ADSM-L] Upgrade and Move to new TSM server

I'll echo John's concern about the mksysb.  If the new hardware is
different, then your mksysb is probably not a good idea.  You'll need
to be running the same version of TSM server on both old and new
hardware.  You can then copy over the TSM-specific files.  I think
John got them all.

I'm not clear on why you're doing the flash copy, unless it's to
preserve a copy of everything in the event that something doesn't
work.  When I upgrade server hardware, I simply export the VGs from
the old server, re-assign the disk LUNs to the new server (if
necessary), and then import the VGs to the new server.  As John said,
you'll need to know which disks each volume group are on.  I use the
wwn for this, as the hdisk numbers will be different.  You can also
use pvid, but I think wwn is probably better.  You can see this via
lsattr -El hdiskn.

Of course, it's always a good idea to have a good DB backup just in case.

You'll also need to worry about redefining paths to any tape
libraries and drives, as the device names may be different on the new
server than they were on the old server.  We have a script we use to
change the rmt names to not be random.  We change them to include
part of the WWN.  This guarantees that the path names will be
identical on any system, so we don't have to worry about redefining
the paths when we move a server instance to a new server.  We
actually have some scripts we use that allow us to move TSM server
instances between two AIX boxes that have shared (SAN) access to the
same disk and tape LUNs.  It's not HACMP, but it allows us to easily
move load around when we need to.

..Paul

At 02:03 PM 7/31/2007, Daad Ali wrote:

Hello TSMers,

  I need to upgrade TSM from 5.2 to 5.4 and move to a new hardware
and I need your valued opinion and expertise.

  Little background:
  My TSM DB and Logs are on SAN disks.


  Here is what I am planning to do after shutting down TSM:

  1- Restore mksysb (using NIM) from old TSM server (servera) to
New TSM Server and name it serverb (AIX 5.3 TL5)

  2- Flash Copy (thru SAN ofcourse) the Disks where TSM database
and logs are on servera  to disks assigned to serverb

  3- varyoff and export the volume groups assigned to disk storage
pools on servera. The storage pools should be empty. migrate first.

  4- import the volume groups on serverb
  5- shutdown servera and rename serverb to servera
     At this point I should have serverb look exactly like servera.
  6- Bring up TSM on the new servera
       TSM should come up  as 5.2 on new servera
  7- Upgrade TSM from 5.2 to 5.4


http://publib.boulder.ibm.com/infocenter/tivihelp/v1r1/index.jsp?topic=/com.ibm.itsmfdt.doc/anrai5330.htm


  I am hoping I will be in good shape after that.

  Has anyone done this procedure before?

  Your help is greatly appreciated.


  thanks,
  Daad



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Paul Zarnowski                            Ph: 607-255-4757
Manager, Storage Services                 Fx: 607-255-8521
719 Rhodes Hall, Ithaca, NY 14853-3801    Em: psz1 AT cornell DOT edu