Identifying Processors in Solaris - psrinfo / psradm
Posted by Rena Borges on Friday, March 27, 2015 Under: Solaris
Usually a solaris box has several processors on-board. Here I show you some simple commands like how to enable / disable / spare the processors using psradm.
When comes to troubleshoot hardware issues it comes handy.
When comes to troubleshoot hardware issues it comes handy.
-bash-4.1$ psrinfo
0 on-line since 02/05/2015 13:36:38
1 on-line since 02/05/2015 13:36:41
2 on-line since 02/05/2015 13:36:41
3 on-line since 02/05/2015 13:36:41
4 on-line since 02/05/2015 13:36:41
5 on-line since 02/05/2015 13:36:41
6 on-line since 02/05/2015 13:36:41
7 on-line since 02/05/2015 13:36:41
8 on-line since 02/05/2015 13:36:41
9 on-line since 02/05/2015 13:36:41
10 on-line since 02/05/2015 13:36:41
11 on-line since 02/05/2015 13:36:41
12 on-line since 02/05/2015 13:36:41
13 on-line since 02/05/2015 13:36:41
14 on-line since 02/05/2015 13:36:41
15 on-line since 02/05/2015 13:36:41
16 on-line since 02/05/2015 13:36:41
17 on-line since 02/05/2015 13:36:41
18 on-line since 02/05/2015 13:36:41
19 on-line since 02/05/2015 13:36:41
20 on-line since 02/05/2015 13:36:41
21 on-line since 02/05/2015 13:36:41
22 on-line since 02/05/2015 13:36:41
23 on-line since 02/05/2015 13:36:41
24 on-line since 02/05/2015 13:36:41
25 on-line since 02/05/2015 13:36:41
26 on-line since 02/05/2015 13:36:42
27 on-line since 02/05/2015 13:36:42
28 on-line since 02/05/2015 13:36:42
29 on-line since 02/05/2015 13:36:42
30 on-line since 02/05/2015 13:36:42
31 on-line since 02/05/2015 13:36:42
This machine has 32 processors all on-line, now with their respective IDs (0 to 31 in the example above) you can manipulate them. For that you will need to use psradm to make changes in the status of the selected processors. Each processor could be in any of these states: on-line, off-line, faulted, spare and no-intr (no interruptible).
To disable (make it off-line) a processor with ID 7:
-bash-4.1$ psradm -f 7
To enable (make it on-line) a processor with ID 7:
-bash-4.1$ psradm -n 7
Note: You can also enable/disable multiple cores: psradm -f 7 9 10
To make the processor as spare forcefully even if it's in faulted state:
-bash-4.1$ psradm -F -s 7
To set processor 7 to no-intr state:
-bash-4.1$ psradm -i 7
At least one processor must also be able to be interrupted. Since an off-line or spare processor can be interruptible, it is possible to have an operational system with one processor no-intr and all other processors off-line or spare but with one or more accepting interrupts. Click here for more information on this.
To display a system's physical processor type and to see detailed information about it:
-bash-4.1$ psrinfo -pv
The physical processor has 8 cores and 16 virtual processors (0-7,16-23)
The core has 2 virtual processors (0,16)
The core has 2 virtual processors (1,17)
The core has 2 virtual processors (2,18)
The core has 2 virtual processors (3,19)
The core has 2 virtual processors (4,20)
The core has 2 virtual processors (5,21)
The core has 2 virtual processors (6,22)
The core has 2 virtual processors (7,23)
x86 (GenuineIntel 206D7 family 6 model 45 step 7 clock 2893 MHz)
Intel(r) Xeon(r) CPU E5-2690 0 @ 2.90GHz
The physical processor has 8 cores and 16 virtual processors (8-15,24-31)
The core has 2 virtual processors (8,24)
The core has 2 virtual processors (9,25)
The core has 2 virtual processors (10,26)
The core has 2 virtual processors (11,27)
The core has 2 virtual processors (12,28)
The core has 2 virtual processors (13,29)
The core has 2 virtual processors (14,30)
The core has 2 virtual processors (15,31)
x86 (GenuineIntel 206D7 family 6 model 45 step 7 clock 2893 MHz)
Intel(r) Xeon(r) CPU E5-2690 0 @ 2.90GHz
This machine has 2 physical x86 processors with 8 cores each; Each core has 2 virtual processors, giving us the total amount of 32 processors.
To check only the amount of physical processors:
-bash-4.1$ psrinfo -p
2
You can have more information about Processor Sockets, Memory Device Sockets, On-Board Devices and Upgradeable Slots with prtdiag, however only on SPARC systems, x86 doesn't offer this facility:
-bash-4.1$ prtdiagSystem Configuration: Oracle Corporation SUN FIRE X4270 M3
BIOS Configuration: American Megatrends Inc. 18100400 04/04/2014
BMC Configuration: IPMI 2.0 (KCS: Keyboard Controller Style)
==== Processor Sockets ====================================
Version Location Tag
-------------------------------- --------------------------
Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz P0
Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz P1
==== Memory Device Sockets ================================
Type Status Set Device Locator Bank Locator
----------- ------ --- ------------------- ----------------
DDR3 in use 0 D7 /SYS/MB/P0
DDR3 in use 0 D6 /SYS/MB/P0
DDR3 in use 0 D5 /SYS/MB/P0
DDR3 in use 0 D4 /SYS/MB/P0
DDR3 in use 0 D0 /SYS/MB/P0
DDR3 in use 0 D1 /SYS/MB/P0
DDR3 in use 0 D2 /SYS/MB/P0
DDR3 in use 0 D3 /SYS/MB/P0
DDR3 in use 0 D7 /SYS/MB/P1
DDR3 in use 0 D6 /SYS/MB/P1
DDR3 in use 0 D5 /SYS/MB/P1
DDR3 in use 0 D4 /SYS/MB/P1
DDR3 in use 0 D0 /SYS/MB/P1
DDR3 in use 0 D1 /SYS/MB/P1
DDR3 in use 0 D2 /SYS/MB/P1
DDR3 in use 0 D3 /SYS/MB/P1
==== On-Board Devices =====================================
Onboard Video
X540 10GbE Controller
X540 10GbE Controller
X540 10GbE Controller
X540 10GbE Controller
Intel C600 Series - SAS
Intel C600 Series - SATA
==== Upgradeable Slots ====================================
ID Status Type Description
--- --------- ---------------- ----------------------------
1 available PCI Express Gen3 /SYS/MB/PCIE1
2 in use PCI Express Gen3 /SYS/MB/PCIE2
3 available PCI Express Gen3 /SYS/MB/PCIE3
4 in use PCI Express Gen3 /SYS/MB/PCIE4
5 in use PCI Express Gen3 /SYS/MB/PCIE5
6 in use PCI Express Gen3 /SYS/MB/PCIE6
In : Solaris
Tags: "how to identify solaris processors" "psrinfo" "psradm" "prtdiag" "how to use psrinfo" "how to use psradm" "how to enable processor in solaris" "how to disabel processor in solaris"
