| Asset ID: |
1-71-2060018.1 |
| Update Date: | 2017-10-11 |
| Keywords: | |
Solution Type
Technical Instruction Sure
Solution
2060018.1
:
SPARC M8-8 and SPARC M7-8 Servers : How to differentiate a server with one Pdomain versus a server with two Pdomains
| Related Categories |
- PLA-Support>Sun Systems>SPARC>Enterprise>SN-SPARC: M7
|
In this Document
Applies to:
SPARC M7-8 - Version All Versions and later
SPARC M8-8 - Version All Versions and later
Information in this document applies to any platform.
Goal
The SPARC M8-8 and M7-8 servers can be ordered with one or two PDomains.
A server with one PDomain includes all of the processors, memory, and PCIe expansion in the chassis. In this configuration, the server can use up to eight processors within its single static PDomain.
In a server with two PDomains, each PDomain includes half of the possible processors, memory, and PCIe expansion slots in the chassis. In this two PDomain configuration, each static PDomain operates as a separate server within the same chassis.
The goal of this document is to demonstrate how to identify the two configurations of SPARC M8-8 and M7-8 servers.
Note : M8 Supercluster uses the SPARC M8-8 with two PDomains and the M7 Supercluster uses the SPARC M7-8 with two PDomains.
Solution
Hardware check
From an hardware perspective, the differences between M8-8/M7-8 with one or two Pdomains are :
- the number of SPMs installed,
- the type of Internal Interconnect (aka trusses) to partition the server.
The label on both server configurations will be the same : either M8-8 or M7-8.
The only way to physically determine the number of SPMs installed is to check for the number of RJ45 port covers on the serial ports of the SP board :
- Two covers imply two SPM and consequently either an M8-8 or M7-8 dual-host,
- Three covers imply a single SPM and the server is a M8-8 or M7-8 single-host.
Example from an M8-8/M7-8 with one Pdomain
It may not be straightforward to physically determine the Internal Interconnect differences but they are as following :
| M8-8 / M7-8 with one Pdomain |
M8-8 / M7-8 with two Pdomains |
|
Left to right
- II_N_8_LO (slot IT_0)
- II_N_8_LI (slot IT_1)
- II_W_248 (slot IT_2)
- II_N_8_RI (slot IT_3)
- II_N_8_RO (slot IT_4)
|
Left to right
- II_N_24_L (slot IT_0)
- II_N_24_L (slot IT_1)
- II_W_248 (slot IT_2)
- II_N_24_R (slot IT_3)
- II_N_24_R (slot IT_4)
|
|
|
|
From ILOM
The Qpart and model report the same value on both configurations of the M8-8 and M7-8 servers:
-> show /System qpart_id model component_model
/System
Properties:
qpart_id = Q10775
model = SPARC M7-8
component_model = SPARC M7-8
The number of DCUs
| M8-8 / M7-8 with one Pdomain |
M8-8 / M7-8 with two Pdomains |
-> show -d targets /System/DCUs
/System/DCUs
Targets:
DCU_0 |
-> show -d targets /System/DCUs
/System/DCUs
Targets:
DCU_0
DCU_1
|
| -> show /System/DCUs/ installed_dcus max_dcus
/System/DCUs
Properties:
installed_dcus = 1
max_dcus = 1
|
-> show /System/DCUs/ installed_dcus max_dcus
/System/DCUs
Properties:
installed_dcus = 2
max_dcus = 2
|
The number of Hosts/Pdomains
| M8-8 / M7-8 with one Pdomain |
M8-8 / M7-8 with two Pdomains |
-> show -d targets /Servers/PDomains/
/Servers/PDomains
Targets:
PDomain_0 |
-> show -d targets /Servers/PDomains/
/Servers/PDomains
Targets:
PDomain_0
PDomain_1 |
The number of SPMs
| M8-8 / M7-8 with one Pdomain |
M8-8 /M7-8 with two Pdomains |
-> show -d targets /System/Other_Removable_Devices/Service_Processors/Service_Processor_0
/System/Other_Removable_Devices/Service_Processors/Service_Processor_0
Targets:
Service_Processor_Module_0 |
-> show -d targets /System/Other_Removable_Devices/Service_Processors/Service_Processor_0
/System/Other_Removable_Devices/Service_Processors/Service_Processor_0
Targets:
Service_Processor_Module_0
Service_Processor_Module_1 |
-> show /System/Other_Removable_Devices/Service_Processors/Service_Processor_0 installed_components
/System/Other_Removable_Devices/Service_Processors/Service_Processor_0
Properties:
installed_components = 1 |
-> show /System/Other_Removable_Devices/Service_Processors/Service_Processor_0 installed_components
/System/Other_Removable_Devices/Service_Processors/Service_Processor_0
Properties:
installed_components = 2 |
The type of trusses installed
| M8-8 / M7-8 with one Pdomain |
M8-8 / M7-8 with two Pdomains |
|
For /SYS/IT[0-4]
-> show /SYS/IT0 fru_description
/SYS/IT0
Properties:
fru_description = II-N-8-LO
-> show /SYS/IT1 fru_description
/SYS/IT1
Properties:
fru_description = II-N-8-LI
...
|
For /SYS/IT[0-4]
-> show /SYS/IT0 fru_description
/SYS/IT0
Properties:
fru_description = II-N-2/4-L
-> show /SYS/IT1 fru_description
/SYS/IT1
Properties:
fru_description = II-N-2/4-L
...
|
|
-> show -t /SYS type=="Interconnect Termination ID" fru_description
Target | Property | Value
----------------------------------------+--------------------------------+----------------------------------------
/SYS/IT0 | fru_description | II_N_8_LO
/SYS/IT1 | fru_description | II_N_8_LI
/SYS/IT2 | fru_description | II_W_248
/SYS/IT3 | fru_description | II_N_8_RI
/SYS/IT4 | fru_description | II_N_8_RO
|
-> show -t /SYS type=="Interconnect Termination ID" fru_description
Target | Property | Value
----------------------------------------+------------+----------------------------------
/SYS/IT0 | fru_description | II_N_24_L
/SYS/IT1 | fru_description | II_N_24_L
/SYS/IT2 | fru_description | II_W_248
/SYS/IT3 | fru_description | II_N_24_R
/SYS/IT4 | fru_description | II_N_24_R
|
| M8-8 / M7-8 with one Pdomain |
M8-8 / M7-8 with two Pdomains |
[(restricted_shell) SPM0:~]# sp_trace_view -r OTHER | grep truss
OTHER 2015-09-23 13:01:43.739498 775 plat_chassis.c:348 first truss: truss_type=II_N_8_LO(3)
OTHER 2015-09-23 13:01:46.090739 775 plat_chassis.c:348 third truss: truss_type=II_W_248(7)
OTHER 2015-09-23 13:01:48.442405 775 plat_chassis.c:348 fifth truss: truss_type=II_N_8_RO(5)
OTHER 2015-09-23 13:01:50.800344 775 plat_chassis.c:348 second truss: truss_type=II_N_8_LI(4)
OTHER 2015-09-23 13:01:53.151868 775 plat_chassis.c:348 fourth truss: truss_type=II_N_8_RI(6) |
[(restricted_shell) SPM0:~]# sp_trace_view -r OTHER | grep truss
OTHER 2015-09-23 15:55:54.090531 695 plat_chassis.c:348 first truss: truss_type=II_N_24_L(1)
OTHER 2015-09-23 15:55:56.428658 695 plat_chassis.c:348 third truss: truss_type=II_W_248(7)
OTHER 2015-09-23 15:55:58.767040 695 plat_chassis.c:348 fifth truss: truss_type=II_N_24_R(2)
OTHER 2015-09-23 15:56:01.106465 695 plat_chassis.c:348 second truss: truss_type=II_N_24_L(1)
OTHER 2015-09-23 15:56:03.439404 695 plat_chassis.c:348 fourth truss: truss_type=II_N_24_R(2) |
The type of chassis
| M8-8 / M7-8 with one Pdomain |
M8-8 / M7-8 with two Pdomains |
[(restricted_shell) SPM0 :~]# sp_trace_view -r OTHER | grep chassis_type
OTHER 2015-09-23 13:01:53.152075 775 plat_chassis.c:1310 device_type: 0xe05 chassis_type: 0xe19 slot_id: 0 |
[(restricted_shell) SPM0 :~]# sp_trace_view -r OTHER | grep chassis_type
OTHER 2015-09-23 15:56:03.439616 695 plat_chassis.c:1310 device_type: 0xe05 chassis_type: 0xe4b slot_id: 1 |
From snapshot
All of the checks above applies to snapshot, using the SP Traces viewer or from the ilom/@usr@local@bin@collect_properties.out file.
The chassis type can also be checked as following
| M8-8 / M7-8 with one Pdomain |
M8-8 / M7-8 with two Pdomains |
-bash-4.1$ grep chassis ilom/@usr@local@bin@sysstatectl_summary.out
chassis_type = 0x0e19 (type 1x8) |
-bash-4.1$ grep chassis ilom/@usr@local@bin@sysstatectl_summary.out
chassis_type = 0x0e4b (type 2x4S) |
FMA
When FMA diagnoses a fault on SP or SPM, the proper Part Number for the FRU will be reported.
-> show /System/Other_Removable_Devices/Service_Processors/Service_Processor_0 part_number serial_number
/System/Other_Removable_Devices/Service_Processors/Service_Processor_0
Properties:
part_number = 7098750
serial_number = 465769T+1440950182
-> show /SYS/SP0 fru_part_number fru_serial_number
/SYS/SP0
Properties:
fru_part_number = 7098750
fru_serial_number = 465769T+1440950182
Note that FMA will never indict an Internal Internal. But if a diagnosis lead to an IT replacement, the PN can be found from ILOM or snapshot.
-> show /SYS/IT0 fru_description fru_part_number fru_serial_number
/SYS/IT0
Properties:
fru_description = II-N-2/4-L
fru_part_number = 7089406
fru_serial_number = 473244M+1411030016
References
<NOTE:2071511.2> - Information Center: SPARC M8 and SPARC M7 Series Servers
<NOTE:1967511.1> - SPARC M7-8 Server : Product Information Page
<NOTE:2311474.1> - SPARC M8-8 Server : Product Information Page
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