this is great, many many thanks ... i really appreciate your reply :-)
i am sure this will help me in planning the stuff ... i'm starring
(gmail) this reply so i can come back
and report about my server swap action and results !
thanks again BIG
//
g
2009/1/29 Richard Rhodes <rrhodes AT firstenergycorp DOT com>:
> Here's how I would handle your migration. We have done this with our TSM
> servers, as well as all kinds of other servers, including Oracle.
>
> We call this a Storage Swing - swinging storage from one server to another.
>
> Conceptually, this is unplugging the storage from the old server and
> plugging it into the new server, just using the SAN to do it. Or, if you
> were JBOD storage, it is unplugging the scsi cable and hooking it to the
> new server. The AIX work would be the same reguardless of whether it was
> SCSI/SSA/JBOD, ISCSI, FC/SAN.
>
> Setup new server
> - setup and patch AIX
> - setup inittab entries, crontabs, etc, etc
> - install tsm
> - copy to this new server your unique files that are in rootvg
> (dsmserv.dsk, dsmserv.opt, etc, etc)
> (probably the contents of your /usr/tivoli/tsm/server/bin)
> (we keep all of this on our SAN storage)
>
> SAN work
> - zone new server HBA's to storage
> - do whatever you need to do on the new server for SAN storage
> - never used a Hitachi box . . .but do whatever you need to do on it
> --> BUT DON"T MAKE THE SAN LUNS AVAILABLE TO THE NEW SERVER YET
> - For our storage (emc), what we do is NOT MASK the storage to the
> server HBA's
> - It would be VERY BAD to have the luns avaialabe to both servers
> concurrently!!!!
>
> Cutover work - part 1
> - backup TSM
> - make some kind of backup of non-tsm files on the SAN storage
> - I would tar them up and copy them somewhere
>
> Cutover work - part 2 - on old server
> - shutdown TSM
> - have any important files in rootvg changed? If yes, copy them to the new
> server.
> (rdist can be usefull for helping if you have a lot of roogvg files)
> - varyoffvg SAN volume groups
> - exportvg SAN volume groups
>
> Cutover work - part 3 - SAN - SWING STORAGE
> - unmask the luns from old server
> - mask the luns to the new server
>
> Cutover work - part 4 - on new server
> - cfgmgr
> - your old luns are brought into the new server
> - setup up multi-pathing???
> - importvg san volume groups
> - mount filesystems
> - startup/test TSM
> - perform a reboot test
> - shutdown TSM
> - reboot AIX
> - does every come up correctly???
> - filesystems mount
> - tsm starts up
>
> That's it.
>
> Rick
>
>
>
>
>
>
>
>
> goc
> <gooooc AT GMAIL DOT COM
> > To
> Sent by: "ADSM: ADSM-L AT VM.MARIST DOT EDU
> Dist Stor cc
> Manager"
> <[email protected] Subject
> .EDU> Re: Hardware upgrade question(s)
>
>
> 01/28/2009 02:27
> PM
>
>
> Please respond to
> "ADSM: Dist Stor
> Manager"
> <[email protected]
> .EDU>
>
>
>
>
>
>
>> Do you currently have SAN storage on the old server?
>
> me : yes (xp12000)
>
>> Do you boot from the SAN storage, or is your rootvg on local/internal
>> drives?
>
> me : no (hdisk0/hdisk1)
>
>> Are you keeping that SAN storage, or replacing it also?
>
> me : keeping
>
>> If you currently use SAN storage, is your entire TSM db/log and any other
>> filesystems on the SAN storage?
>
> me : yes
>
>> For example, we use internal disks for our boot volume (rootvg), so TSM
> is
>> installed and lives on the internal drives. Our TSM server db/log and
>> other related filesystems are all on external SAN storage.
>>
>> Depending on your answers, your migration to the new server could be very
>> easy . . . just a storage swing.
>>
>> Rick
>>
>
> me : thank you, can you help me some more ? :-)
>
>
>
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