cell boards

[Raj_Ranjan]

Can anyone please let me know what are cell boards in hp servers. And what is the command to find the details of the processor means (its specification).

[Doug O'Leary]

Hey;

I think you're combining two entirely separate concepts.

Cells are a hardware architecture that allows for electrical separation of hardware. Each cell will have their own cpus, memory, and (usually) I/O.

The CPUs in the cells would obviously follow the architecture of the entire system be it pa-ris or ia64.

HTH;

Doug O'Leary

[Raj_Ranjan]

Do anyone has any image for this to clear my doubts.

[Jeeshan · Accepted solution]

you can read a docs about cell boards

http://docs.hp.com/en/B9073-90183/ch02s09.html

you can view the processor specification

#echo "SelClass qualifier CPU; Info;wait;infolog"|cstm|more

[Don Morris_1]

http://docs.hp.com/en/AB297-9013A/ch01s01.html#v1370285

might help.

The Cell board is basically the motherboard of a standalone computer system. When processors, memory, I/O, power and cooling are all added and the board is within a chassis, you have a Cell -- which is really just a computing module which knows how to talk over an interconnect (external to the Cell bus) if needed to link with other Cells into a larger computing platform. Hence things like nPartitions where Cells are grouped (or left as singletons) to be used as different physical servers.

[Jov]

Hi,

Cells in HP mid-range servers allow multiple logical grouping of physical h/w (CPU, Memory, etc) using nPar technology. This configuration is initial setup at MSP.


Jov

[Tim Nelson]

One experience.

Power is not completely isolated.

The VRMs (Voltage Regulator Modules) are NOT isolated between cells. The is from experience with a failed VRMs taking down both cells in an rp7420 ( have experienced it 3 times in last 5 years).

[Raj_Ranjan]

Last Friday our main production server (rp7410) was down and was reported that one of the cell board has gone bad. They have replaced it. As it is a remote location i could'nt see anything. How can I know the specification of the cell board he replaced. Is there any way. The second thing is how to know the number of cell board there in the server.

[Don Morris_1]

parstatus -C is the quickest thing I can think of.

More detailed information per cell can be found with "parstatus -c N -V" where you replace N with 0, 1, ... [the numbers are from the first parstatus -C -- that tells you how many cells you have, in how many cabinets and what the numbering is... use that number with the -c (Cell) option to get more details]

[Don Morris_1]

Oh (and someone may know a way to tie all this together... I just relay what I do know), there's alternative information available via the MP console as well. If you go to the CM menu and do "PS" followed by C then 0 (or 1 or whatever number you want), you get information about the VRMs, Cell FSBs, which slots are populated, etc.