Swapping harddisks between v210 and v240
We have a v210 system having single cpu operating at 1002 MHz and a v240 with 2 cpu's operating at 1280 MHz. We want to swap the hdd's between the two machines or the processors. Is this possible? If so what are the possible problems that could be encountered? What are the things to watch out for? Please share your thoughts and experiences.
Thanks,
[365 byte] By [
volnaa] at [2007-11-26 17:36:44]

# 1
The drives are compatible. So swapping the drive should be fine. Be sure to keep drive 0 in slot 0 and drive 1 in slot 1.
I would be very careful. Swapping the drives can/most likely cause issues with the device tree. Make a great backup(or 2) of the OS. Before shutting down move the file /etc/path_to_inst to a new filename. Swap the drives. On the new system v240 do a "boot -ar". This will rebuild the path_to_inst file. It will ask you questions while it is coming up but selecting the defaults should be fine.
Also if you have an special software that uses the hostID as part of its license info, you might be required to get new license keys made. (Veritas comes to mind)
Short of that...Without knowing the applications or system function, the drives and OS should be compatible.
# 2
Watch out for network configuration; I'm not sure that the NICs on the 210 and 240 use the same driver. If they don't, you will need to reconfigure network for the appropriate NICs (if the boot -ar doesn't ask you). Other than things already mentioned, there shouldn't be any complications.
# 3
(whisper quietly, over and over)
... the Sun System Handbook is your friend ...
... the Sun System Handbook is your friend ...
... the Sun System Handbook is your friend ...
http://sunsolve.sun.com/handbook_pub/Systems/SunFireV210/SunFireV210.html
http://sunsolve.sun.com/handbook_pub/Systems/SunFireV240/SunFireV240.html
They are the same system, except for the outside chassis.
Glance at the systemboard part numbers in the Full Components List.
The integrated Ethernet is the same for both platforms.
The V240 has a larger chassis, for more internal storage, and redundant power supplies.
# 4
yes yes, but then that's assuming the user hasn't added other NICs and that Sun didn't switch NICs from one revision of the server to another.
# 6
> The drives are compatible. So swapping the drive
> should be fine. Be sure to keep drive 0 in slot 0
> and drive 1 in slot 1.
>
> I would be very careful. Swapping the drives
> can/most likely cause issues with the device tree.
> Make a great backup(or 2) of the OS. Before
> shutting down move the file /etc/path_to_inst to a
> new filename. Swap the drives. On the new system
> v240 do a "boot -ar". This will rebuild the
> path_to_inst file. It will ask you questions while
> it is coming up but selecting the defaults should be
> fine.
>
> Also if you have an special software that uses the
> hostID as part of its license info, you might be
> required to get new license keys made. (Veritas
> comes to mind)
>
> Short of that...Without knowing the applications or
> system function, the drives and OS should be
> compatible.
Thanks for the feedback and quick how-to. They both have oracle databases running. Is there anything more I should take care of, taking this into consideration. Ofcourse backups are being taken.
# 7
Just to update - we didn't do the disk swaps. Instead we did a swap of the databases only. This was less riskier and hence the decision was made to try this first. Both databases are working perfectly. Special thanks to Lee, but (un)fortunatly we did not try his suggested method to swap disks.