FAILING K360

[Nobody's Hero]

I have an unsupported K360 failing at boot up.
I need to get into sp mode to disable the processor 0, I believe this is failing. How can I get to the menu to disable the processor. I do a cntrl+b and SP, SP is a no go. Running 11.0.

[Uday_S_Ankolekar]

Try to remove this CPU from the system!

Well, I found this doc in TKB..
. a. Interrupt the boot process, and get to the PDC Main Menu by
answering N for no to the questions about booting from primary
and alternate boot paths.

b. Select the Configuration Menu by typing: CO

c. Disable processor 1 (the second processor) by typing:

PR 1 OFF

d. Enable it at a later stage by typing:

PR 1 ON

(Never turn processor 0 off)

2. To improve system performance, use the following information:

Kernel parameters: fs_async set to 1
nbuf
bufpage

Filesystem parameters: use 'tunefs' on an unmounted filesystem.

To tune the root filesystem, boot into maintenance mode by typing:

ISL> hpux -lm (;0)/hp-ux

No filesystem is put on a raw partition so only kernel parameters
will affect a raw partition.

Good luck,
-USA..

[Sanjay_6]

Hi,

I don't think you can disable the processor on k360. Can't remember. Even if you could, you cannot disable processor 0. Replacement is the only choice.

Hope this helps.

Regds

[Uday_S_Ankolekar]

If it's processor 0 then I think you have no luck...!

[Nobody's Hero]

never get to the boot. Systems gets a FLT during io,memory and cpu scan.

[John Poff]

Hi,

If you have at least two CPUs you could swap 0 and 1, and then disable 1.

JP

[Patrick Wallek · Accepted solution]

If I recall correctly processor 0 is the monarch processor and you can't boot without it.

If it is truly failing, the I think your best bet is to pull processor 0 out, then move the next highest numbered processor to processor 0 (if you have 4 CPUs, move processor 3 to processor 0 slot).

Then try to boot the machine again.

[Sanjay_6]

Hi,

what is the FLT code on the display panel?.

Regds

[Tim Nelson]

Without root privelage to access the kernel you could ask your admin to provide restricted SAM access to the SAM performance section. All info is provided under the properties section.

[Mahesh Kumar Malik]

Hi Robert

Processor 0 can not be disabled.

Suggest following:

1. Swap next higher processor to processor 0 slot and then disable it in new slot.You can go to SER (service) menu at IPL>CO>SER to select the processor to disable

2. Take the suspected processor out of server and replace with highest slot one.

Regards
Mahesh