topic Re: Firmware Upgrade Best Practices in BladeSystem - General

Firmware Upgrade Best Practices

Louann Duchemin — Fri, 29 Jul 2011 20:58:22 GMT

BL86c's have two ROM's. Rom - A and ROM-B. When you perform an FW upgrade should you up grade both or just one to the newer version and leave the other alone just incase you need to fall back. I'm looking for best practices guidence.

Re: Firmware Upgrade Best Practices

Torsten. — Sat, 30 Jul 2011 11:31:41 GMT

The update will be written to the secondary flash, during next boot this becomes active.

During the next update the new version will be written again to the secondary flash and activated during boot and so on ...

Re: Firmware Upgrade Best Practices

Louann Duchemin — Mon, 01 Aug 2011 14:30:18 GMT

So what your saying is it really doesn't matter. The next time the Blade is booted it will automatically copy the higher version over the lower version?

Re: Firmware Upgrade Best Practices

Torsten. — Mon, 01 Aug 2011 18:48:06 GMT

Example:

sysrev before the update:

MP:CM> sysrev

SYSREV

Current firmware revisions

MP FW     : F.02.17
BMC FW    : 05.21
EFI FW    : ROM A 06.20, ROM B 06.20
System FW : ROM A 03.01, ROM B 03.01, Boot ROM A
PDH FW    : 50.07
UCIO FW   : 03.0b
PRS FW    : 00.08 UpSeqRev: 02, DownSeqRev: 01

and after the update (automatically to ROM B):

MP:CM> sysrev

SYSREV

Current firmware revisions

MP FW     : F.02.25
BMC FW    : 05.25
EFI FW    : ROM A 06.20, ROM B 07.14
System FW : ROM A 03.01, ROM B 04.11, Boot ROM B
UCIO FW   : 03.0b
PRS FW    : 00.08 UpSeqRev: 02, DownSeqRev: 01

Re: Firmware Upgrade Best Practices

Louann Duchemin — Mon, 01 Aug 2011 21:20:42 GMT

Thank you again for your reply. However, it still does not answer my question. I understand how the process takes, place but I have an Engineer that feels you should only upgrade one ROM, then boot off of that newer version, and keep the other ROM at the older version incase you have to fail back.

Do you agree or should we just go ahead and upgrade both ROM's?