4096 MB memory disappeared !

[Eric Theroux]

Hi
I have a rp7410 server configured with 16Gb of RAM (8Gb per Cell).

It seems that the CAB/CELL 0/1 uses only 4Gb of the 8Gb installed,

see the output of cstm command attached.

Looks like there is a part of the memory not available (like hardware partition).

Any idea how to reactivate that 4Gb of RAM ?

thank in advance !
Eric

[Bill McNAMARA_1]

The memory needs to be consistently installed in what is known as a rank. If one dimm in a rank fails, the entire rank is disactivated to prevent cell controller memory hot spots and discontiguity (sp!?)

You need to identify which dimm in which rank failed and replace it. That is once a dimm failed.

If a cell has only one rank, if one dimm fails, the entire cell will be disactivated..

PS the logs didn't attach.
The GSP log would be most interesting.

[Bill McNAMARA_1]

sorry the log did attach! I just didn't see it!

Attach the GSP Error logs too.

[Bill McNAMARA_1]

ah okay, looks like no dimms failed.

You possibly just need to activate from the BCH (Boot Console Handler) SER DIMM menu.

Are you subscribing to the ICOD program?

Bill

[Steven E. Protter]

You have a bad or improperly installed memory chip. There should be four more 512 Meg Sims on that report.

Its usually a physical issue, not a software issue. If the chips are in thats all you need to do to access the memory.

I have hardware contracts and hate touching the insides of my machines, but either way someone needs to poke their head inside.

SEP

[Eric Theroux]

Hi,

The attachment is available.
Here is the log I get from Management Processor Chassis Logs menu:

526 PDC 0,1,0 *4 0x2000444076001066 0x00ffff01ff1dff74 MEM_DIMM_ERR_DEALLOCATED
526 PDC 0,1,0 *4 0x58004c0000001060 0x0000670314003029 04/20/2003 00:48:41

Earlier (in October) I also got this:
285 PDC 0,1,0 *10 0x200042ad76001092 0x00ffff01ff3dff74 MEM_DIMM_DEALLOCATED_PARITY_ERROR
285 PDC 0,1,0 *10 0x58004a0000001090 0x000066090a001800 10/10/2002 00:24:00

I can I know if it's a real defect DIMM ?

[Paula J Frazer-Campbell]

Eric

Power down and reseat all of the dimms - remember to wear an earth strap.

Reboot and test - If that mem is still not avail then swap it out.

Paula