Checking disk controller status using the CLI

You can use the command-line interface (CLI) to check the status of the disk controllers.

Issue the svcinfo lscontroller -delim : command to display the example output:

id:controller_name:ctrl_s/n:vendor_id:product_id_low:product_id_high
0:controller0::IBM :1742-900:
1:controller1::IBM :2105800 :

You can also check the status of a specific disk controller. Issue the following command to check the status of a specific disk controller:

svcinfo lscontroller -delim = controller_id

where controller_id is the ID of the controller whose status you want to check.

id=0
controller_name=controller0
WWNN=200600A0B80F80A6
mdisk_link_count=7
max_mdisk_link_count=7
degraded=no
vendor_id=IBM
product_id_low=1742-900
product_id_high=
product_revision=0914
ctrl_s/n=
allow_quorum=yes
WWPN=200600A0B80F80A7
path_count=4
max_path_count=4
WWPN=200600A0B80F80A8
path_count=4
max_path_count=4
WWPN=200700A0B80F80A7
path_count=4
max_path_count=4
WWPN=200700A0B80F80A8
path_count=2
max_path_count=2

You can see the status of a specific disk controller (id=0) in the sixth line of the previous example. The value of degraded is defined below:

no: Specifies that the status is good
yes: Specifies that the status is undesirable