Checking the status of an external storage system

You can use the management GUI or command-line interface (CLI) to check the status of an external storage system.

To view the status of external storage systems in the management GUI, select Pools > External Storage. The list displays all attached external storage systems. The value State column indicates the status of the external storage system.

An example for a non-iSCSI storage system

Specify lscontroller -delim : 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 by specifying the following command:

lscontroller -delim = controller_id

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

id=7
controller_name=controller7
WWNN=20000004CF2412AC
mdisk_link_count=1
max_mdisk_link_count=1
degraded=no
vendor_id=SEAGATE 
product_id_low=ST373405
product_id_high=FC      
product_revision=0003
ctrl_s/n=3EK0J5Y8
allow_quorum=no
site_id=2
site_name=DR
WWPN=22000004CF2412AC
path_count=1
max_path_count=1
WWPN=21000004CF2412AC
path_count=0
max_path_count=0
fabric_type=sas_direct

fabric_type
site_id
site_name
WWPN
path_count
max_path_count
iscsi_port_id

You can see the status of a specific disk controller (id=7) in the previous example. The value of degraded is defined:

no: Specifies that the status is good.
yes: Specifies that the status is undesirable.
degraded: Specifies whether the controller has degraded MDisks.

A concise example for an iSCSI-attached storage system

After iSCSI sessions are initiated by using the addiscsistorageport command, the status of the resultant sessions can be viewed by using the lscontroller -delim command.

Specify lscontroller -delim : to display the example output:

id:controller_name:ctrl_s/n:vendor_id:product_id_low:product_id_high:WWNN:degraded:fabric_type:site_id:site_name
0:controller0::IBM:1726-4xx:FAStT::no:iscsi:1:snpp1
1:controller1::IBM:1726-4xx:FAStT::no:iscsi:2:snpp2

A detailed example for an iSCSI-attached storage system

You can also check the status of a specific iSCSI controller by specifying the following command:

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 
mdisk_link_count 4
max_mdisk_link_count 4
degraded no
vendor_id IBM
product_id_low 1726-4xx
product_id_high   FAStT
product_revision 0617
ctrl_s/n
allow_quorum no
fabric_type iscsi
site_id
site_name
WWPN
path_count 4
max_path_count 4
iscsi_port_id 1ip 10.10.10.1
WWPN
path_count 4
max_path_count 4
iscsi_port_id 2ip 10.10.10.2