L2000 to L3000 migration

[Paprocki]

Hi, a migration rp5450 to rp5470 is coming soon for me... The hardware part is for HP's Techs..
This server is on a SAN..What, according to u, would be the problem i will encounter for the "OS" part ..?? (hardware path..?..) , what will i have to take attention to..?
thanks!

[monasingh_1]

lan card instances number may change, (save all the ifconfig lanX display and netstat -in info)

disk paths may change, so keep the map file from vgexport -s -m MAP_FILE /dev/VGNAME.

LUN MASKING (HP) of FPATH (EMC) willneed to be modified if in use currently.

Zoning will need to be changed if wwn number are used in zoning.

Check if your SAN switch are going to complain if you are moving from 1GB fiber to 2GB.

L2000 and L3000 should be compatible for igniting with make_recovery tape. You may want to create a make_recovery.

keep a hard copy of vgdisplay -v ,strings lvmtab, netstat -r, ioscan, passwd/group, swlist, mount -v/ exportfs -v / auto.direct/auto_master etc.

Finally , Keep a good backup of all your data.

[Steven E. Protter]

use make_tape_recovery to be supported.

This upgrade will probably only require the Ignite tape and maybe some hardware enablement patches.

SEP

[John Palmer]

I recall doing a similar upgrade a couple of years ago. The main issue is that the hardware paths of various devices especially disks will change.

HP provided a script to run before the upgrade that changed /etc/ioconfig etc so that all device file names were correct.

Check with HP to see if this is still available.

Regards,
John

[Massimo Bianchi]

Hi,
be sure to check also the licencing of your software.

Some of them rely on

"uname -i", that may change, other on mac address of lan0, that may change also.

HW path are very likely to change, but , as mentioned, a good make_tape_recovery can fix all in a clean way.

Remember also, if you chane lan card, to update network devices with the proper mac address, just in case ....


Regards,
Massimo

[Paprocki]

Thanks , John could tell me how to get the right tools from HP (ioconfig..)..?

[John Palmer · Accepted solution]

I seem to remember that they provided it as part of the upgrade.

What it did was to change the files on the server which contain details of the connected hardware (see man ioconfig for more details) to reflect what the hardware paths would be after the upgrade.

Everything worked ok when I did it.

Regards,
John

[Paprocki]

thanks a lot to all of u...
quick and accurate answers...!!!

alea jacta est ;-)

[Paprocki]

a little one..
Could u advice me for the right options with make_tape_recovery in this case..?
I've 4 disks in VG00. My boot disk is mirrored
No other VG than VG00..

when i'll restore, do u think the new hardware parts (motherboard+CPU) won't cause trouble..?

If yes i'll do vgexport/vgimport..?

[monasingh_1]

make_tape_recovery -x inc_entire=vg00 should take entire vg00 in recovery tape.

new hardware should not be any problem. You will just need to select what disks you want to be part of new vg on new server.

hope this helps...