V480 missing 2 gig of RAM
Hello
We have a V480 that has got a bit mixed up. It used to have
16GB of memory installed but now shows the following. I believe these are 512mb dimms and there will be 16 of them on each board, A and B. I assume Board B shows correct and since its 8 way interleaving it must be full. I believe board A's memory should be the same as board B's.
Any ides on what could have caused this and what to do to rectify.?
System Configuration: Sun Microsystems sun4u Sun Fire 480R
System clock frequency: 150 MHz
Memory size: 14336 Megabytes
========================= CPUs ===============================================
RunE$ CPUCPU
Brd CPU MHzMB Impl.Mask
-- - - - -
A0900 8.0 US-III+ 2.3
A2900 8.0 US-III+ 2.3
B1900 8.0 US-III+ 2.3
B3900 8.0 US-III+ 2.3
========================= Memory Configuration ===============================
Logical Logical Logical
MCBankBankBank DIMMInterleave Interleaved
Brd IDnumsizeStatusSizeFactorwith
---- --
A001024MBno_status512MB4-way0
A011024MBno_status512MB4-way0
A021024MBno_status512MB4-way0
A031024MBno_status512MB4-way0
A221024MBno_status512MB1-way1
A231024MBno_status256MB1-way2
B101024MBno_status512MB8-way3
B111024MBno_status512MB8-way3
B121024MBno_status512MB8-way3
B131024MBno_status512MB8-way3
B301024MBno_status512MB8-way3
B311024MBno_status512MB8-way3
B321024MBno_status512MB8-way3
B331024MBno_status512MB8-way3
[1620 byte] By [
sunspot] at [2007-11-25 22:47:08]
# 2
This Server has 16gb memory installed
I have reviewed /var/adm/messages.1. I can see that the server
was rebooted on the 20th September and it came back up with 16Gb of
memory (See below) :Sep 20 18:34:35 51 info] mem =
16777216K
Now I dont understand the memory map . Board A will have 16 dimms slots on it, CPU 0......8 slots which are supposed to be A0 and A1 and CPU2....8 slots B0 B1. A0,A1,B0,B1 each contain 4 dimms. Now how does this output map to that information
A001024MBno_status512MB4-way0
A011024MBno_status512MB4-way0
A021024MBno_status512MB4-way0
A031024MBno_status512MB4-way0
A221024MBno_status512MB1-way1
A231024MBno_status256MB1-way2
B101024MBno_status512MB8-way3
B111024MBno_status512MB8-way3
B121024MBno_status512MB8-way3
B131024MBno_status512MB8-way3
B301024MBno_status512MB8-way3
B311024MBno_status512MB8-way3
B321024MBno_status512MB8-way3
B331024MBno_status512MB8-way3
I assume the following
A001024MBno_status512MB4-way0
A011024MBno_status512MB4-way0
A021024MBno_status512MB4-way0
A031024MBno_status512MB4-way0
is 8 x 512 mb dimms opposite CP0 on board A,...... A0 and A1, all 8 slots filled since 4 way interleave.
Next
A221024MBno_status512MB1-way1
A231024MBno_status256MB1-way2
is referring to memory associated with CPU2 on board A so probably B0, B1
From this its saying there are no dimms in one of the banks
A 2 0, A 2 1, this is not true and hence reported wrong.
A 2 2 and A 2 3 reports, if I read this correct, 2 x 512 mb dimms and 2 x 128 mb dimms as the 4 dimms in the bank.
This is wrong reporting also.
As reported by messages on Sept 20th there is 16GB of memory installed. I believe board A is an exact replica of board B which shows correct.
B101024MBno_status512MB8-way3
B111024MBno_status512MB8-way3
B121024MBno_status512MB8-way3
B131024MBno_status512MB8-way3
B301024MBno_status512MB8-way3
B311024MBno_status512MB8-way3
B321024MBno_status512MB8-way3
B331024MBno_status512MB8-way3
so my questions are am i reading this correctly, where is the missing memory gone from prtdiag now and could somebody explain how to map the prtdiag -v memory output
to the psychical banks A0, A1, B0, B1 to what i see here
B10
B11
B12
B13
B30
B31
B32
B33
Thanks in advance
