Memory Interleaving question on E4500 server

From: Tony Magtalas (ttk67@yahoo.com)
Date: Mon Jun 24 2002 - 16:03:52 EDT


I have an E4500 with 3 CPU/Memory boards, each
populated with identical memory SIMMS and CPU modules
(each SIMM is 256 MB, each bank= 2GB) CPU are all
400Mhz with 8 MB cache.

Question:

Should I get 6-way interleave memory for this
configuration ( 6 memory banks)

Here is what I get when I run "prtdiag" command:
(I got a mixture of 4 way and 2 way interleave)

Please reply. I will summarize
Tony

----
output of "prtdiag"
System Configuration:  Sun Microsystems  sun4u 8-slot
Sun Enterprise E4500/E5500
System clock frequency: 100 MHz
Memory size: 12288Mb
========================= CPUs
=========================
                    Run   Ecache   CPU    CPU
Brd  CPU   Module   MHz     MB    Impl.   Mask
---  ---  -------  -----  ------  ------  ----
 0     0     0      400     8.0   US-II    10.0
 0     1     1      400     8.0   US-II    10.0
 2     4     0      400     8.0   US-II    10.0
 2     5     1      400     8.0   US-II    10.0
 4     8     0      400     8.0   US-II    10.0
 4     9     1      400     8.0   US-II    10.0
========================= Memory
=========================
                                              Intrlv. 
Intrlv.
Brd   Bank   MB    Status   Condition  Speed   Factor 
 With
---  -----  ----  -------  ----------  -----  ------- 
-------
 0     0    2048   Active      OK       60ns    4-way 
   A
 0     1    2048   Active      OK       60ns    4-way 
   A
 2     0    2048   Active      OK       60ns    4-way 
   A
 2     1    2048   Active      OK       60ns    2-way 
   B
 4     0    2048   Active      OK       60ns    4-way 
   A
 4     1    2048   Active      OK       60ns    2-way 
   B
========================= IO Cards
=========================
     Bus   Freq
Brd  Type  MHz   Slot  Name                           
 
======================
Most recent AC Power Failure:
=============================
Wed May 15 10:40:41 2002
========================= Environmental Status
=========================
Keyswitch position is in Normal Mode
System Power Status: Redundant
System LED Status:    GREEN     YELLOW     GREEN
Normal                 ON        OFF       BLINKING
Fans:
-----
Unit   Status
----   ------
Rack    OK
Key     OK
AC      OK
System Temperatures (Celsius):
------------------------------
Brd   State   Current  Min  Max  Trend
---  -------  -------  ---  ---  -----
 0      OK       30     27   34  stable
 1      OK       37     36   37  stable
 2      OK       29     25   32  stable
 3      OK       39     38   41  stable
 4      OK       27     23   30  stable
 5      OK       34     32   35  stable
 7      OK       39     39   41  stable
CLK     OK       27     26   28  stable
Power Supplies:
---------------
Supply                        Status
---------                     ------
0                                OK
1                                OK
2                                OK
3                                OK
PPS                              OK
    System 3.3v                  OK
    System 5.0v                  OK
    Peripheral 5.0v              OK
    Peripheral 12v               OK
    Auxilary 5.0v                OK
    Peripheral 5.0v precharge    OK
    Peripheral 12v precharge     OK
    System 3.3v precharge        OK
    System 5.0v precharge        OK
AC Power                         OK
========================= HW Revisions
=========================
ASIC Revisions:
---------------
Brd  FHC  AC  SBus0  SBus1  PCI0  PCI1  FEPS  Board
Type      Attributes
---  ---  --  -----  -----  ----  ----  ---- 
----------      ----------
 0    1    5                                  CPU     
       100MHz Capable
 1    1    5    1      1                 22  
Dual-SBus-SOC+  100MHz Capable
 2    1    5                                  CPU     
       100MHz Capable
 3    1    5    1      1                 22  
Dual-SBus-SOC+  100MHz Capable
 4    1    5                                  CPU     
       100MHz Capable
 5    1    5    1      1                 22  
Dual-SBus-SOC+  100MHz Capable
 7    1    5                 4     4     c1   Dual-PCI
       100MHz Capable
System Board PROM revisions:
----------------------------
Board  0:   OBP   3.2.29 2001/06/18 17:28   POST 
3.9.29 2001/06/18 17:50
Board  1:   FCODE 1.8.29 2001/06/18 17:26   iPOST
3.4.29 2001/06/18 17:49
Board  2:   OBP   3.2.29 2001/06/18 17:28   POST 
3.9.29 2001/06/18 17:50
Board  3:   FCODE 1.8.29 2001/06/18 17:26   iPOST
3.4.29 2001/06/18 17:49
Board  4:   OBP   3.2.29 2001/06/18 17:28   POST 
3.9.29 2001/06/18 17:50
Board  5:   FCODE 1.8.29 2001/06/18 17:26   iPOST
3.4.29 2001/06/18 17:49
Board  7:   FCODE 1.8.29 2001/06/18 17:25   iPOST
3.0.29 2001/06/18 17:49
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