Identify a Disk Slot (Oracle Solaris)

Language:

The examples in this procedure apply to a SPARC T5-4 server that has an eight-disk backplane configuration.

Note - This document applies to several server and server module products. The following example is based on the SPARC T5-4 server. Your output might vary from the examples based on your product.

Type the format command.

# format
Searching for disks...done
 
AVAILABLE DISK SELECTIONS:
    0. c0t5000CCA00ABBAEB8d0 <SUN300G cyl 46873 alt 2 hd 20 sec 625>
       /scsi_vhci/disk@g5000cca00abbaeb8
    1. c0t5000C5001D40D7F7d0 <SUN300G cyl 46873 alt 2 hd 20 sec 625>
       /scsi_vhci/disk@g5000c5001d40d7f7
[...]

The remaining steps in this example identify the physical slot that corresponds to the device name c0t5000CCA00ABBAEB8d0.

Type prtconf -v and search for the device link containing the device name c0t5000CCA00ABBAEB8d0.

For this example, the following portion of the output includes that device name:

Device Minor Nodes:
    dev=(32,0)
        dev_path=/scsi_vhci/disk@g5000cca00abbaeb8:a
            spectype=blk type=minor
            dev_link=/dev/dsk/c0t5000CCA00ABBAEB8d0s0      <<=== Device link
            dev_link=/dev/sd3a
        dev_path=/scsi_vhci/disk@g5000cca00abbaeb8:a,raw
            spectype=chr type=minor
            dev_link=/dev/rdsk/c0t5000CCA00ABBAEB8d0s0     <<=== Device link
            dev_link=/dev/rsd3a

Search the prtconf output for the name='wwn' entry that shows the WWN value 5000cca00abbaeb8.

Note the obp-path value listed under WWN 5000cca00abbaeb8.

Refer to the following items to find the controller.

Controller 0 – /pci@400/pci@1/pci@0/pci@0/LSI,sas@0/disk@w5000cca00abbaeb9,0
Controller 1 – /pci@700/pci@1/pci@0/pci@0/LSI,sas@0/disk@w5000cca00abbaeb9,0

For SPARC T5-4 servers, the controller is identified in the first field. For servers with a four-processor configuration, pci@400 is controller 0 and pci@700 is controller 1.

The following output example shows the obp-path for a SPARC T5-4 server.

Paths from multipath bus adapters:
    mpt_sas#5 (online)
        name='wwn' type=string items=1
            value='5000cca00abbaeb8'              <<=== Hard drive WWN ID
        name='lun' type=int items=1
            value=00000000
        name='target-port' type=string items=1
            value='5000cca00abbaeb9'              <<=== Hard drive SAS address
        name='obp-path' type=string items=1
            value='/pci@400/pci@1/pci@0/LSI,sas@0/disk@w5000cca00abbaeb9,0'
        name='phy-num' type=int items=1
            value=00000000
        name='path-class' type=string items=1
            value='primary'

In this example, the obp-path is:

/pci@400/pci@1/pci@0/pci@0/LSI,sas@0/disk@w5000cca00abbaeb9,0

Based on the earlier name identification, this disk is on controller 0.

Consult this port mapping table to determine which physical disk slot the phy-num value corresponds to.
This phy-num value corresponds to physical disk slot 0.

SAS Controller

PhyNum

Disk Slot

SAS Controller

PhyNum

Disk Slot

0

0

0
Default boot drive

1

0

4

1

1

1

5

2

2

2

6

3

3

3

7

Identify a Disk Slot (Oracle Solaris)

Related Information