Listing MDisks by using the CLI

You can use the command-line interface (CLI) to list the MDisks.

1. Use the following CLI command:

   lsmdisk ­delim :

   This example is what you might see when you use the lsmdisk ­delim : command:

   id:name:status:mode:mdisk_grp_id:mdisk_grp_name:capacity:ctrl_LUN_#:controller_name:UID:tier:encrypt:site_id:site_name:distributed
   0:mdisk0:online:unmanaged:::500.0GB:0000000000000000:controller1:600a0b8000689e710000c0d255823cdb00000000000000000000000000000000:enterprise:no:::no
   1:mdisk1:online:unmanaged:::500.0GB:0000000000000001:controller1:600a0b80004942be000001e9558261c300000000000000000000000000000000:enterprise:no:::no
   2:mdisk2:online:unmanaged:::100.0GB:0000000000000002:controller1:600a0b8000689e710000c0d555823d4d00000000000000000000000000000000:enterprise:no:::no
   3:mdisk3:online:unmanaged:::100.0GB:0000000000000003:controller1:600a0b80004942be000001ea558261e500000000000000000000000000000000:enterprise:no:::no
   4:mdisk4:online:unmanaged:::100.0GB:0000000000000004:controller1:600a0b8000689e710000c0d655823d5d00000000000000000000000000000000:enterprise:no:::no
   5:mdisk5:online:unmanaged:::100.0GB:0000000000000005:controller1:600a0b80004942be000001eb5582624100000000000000000000000000000000:enterprise:no:::no
   6:mdisk6:online:unmanaged:::150.0GB:0000000000000006:controller1:600a0b8000689e710000c0d755823d8400000000000000000000000000000000:enterprise:no:::no
   7:mdisk7:online:unmanaged:::100.0GB:0000000000000000:controller3:60050763008181b6d80000000000061100000000000000000000000000000000:enterprise:no:::no
   8:mdisk8:online:unmanaged:::100.0GB:0000000000000001:controller3:60050763008181b6d80000000000060f00000000000000000000000000000000:enterprise:no:::no
   9:mdisk9:online:unmanaged:::100.0GB:0000000000000002:controller3:60050763008181b6d80000000000060900000000000000000000000000000000:enterprise:no:::no
   10:mdisk10:online:unmanaged:::100.0GB:0000000000000003:controller3:60050763008181b6d80000000000061400000000000000000000000000000000:enterprise:no:::no
   11:mdisk11:online:unmanaged:::100.0GB:0000000000000004:controller3:60050763008181b6d80000000000060800000000000000000000000000000000:enterprise:no:::no
   12:mdisk12:online:unmanaged:::100.0GB:0000000000000005:controller3:60050763008181b6d80000000000060a00000000000000000000000000000000:enterprise:no:::no
   13:mdisk13:online:unmanaged:::100.0GB:0000000000000006:controller3:60050763008181b6d80000000000060b00000000000000000000000000000000:enterprise:no:::no
   14:mdisk14:online:unmanaged:::100.0GB:0000000000000007:controller3:60050763008181b6d80000000000061200000000000000000000000000000000:enterprise:no:::no
   15:mdisk15:online:unmanaged:::100.0GB:0000000000000008:controller3:60050763008181b6d80000000000060e00000000000000000000000000000000:enterprise:no:::no
   16:mdisk16:online:unmanaged:::100.0GB:0000000000000009:controller3:60050763008181b6d80000000000060c00000000000000000000000000000000:enterprise:no:::no
   17:mdisk17:online:unmanaged:::100.0GB:000000000000000A:controller3:60050763008181b6d80000000000060d00000000000000000000000000000000:enterprise:no:::no
   18:mdisk18:online:unmanaged:::100.0GB:000000000000000B:controller3:60050763008181b6d80000000000061300000000000000000000000000000000:enterprise:no:::no
   19:mdisk19:online:unmanaged:::100.0GB:000000000000000C:controller3:60050763008181b6d80000000000060700000000000000000000000000000000:enterprise:no:::no
   20:mdisk20:online:unmanaged:::100.0GB:000000000000000D:controller3:60050763008181b6d80000000000060600000000000000000000000000000000:enterprise:no:::no
   21:mdisk21:online:unmanaged:::100.0GB:000000000000000E:controller3:60050763008181b6d80000000000061000000000000000000000000000000000:enterprise:no:::no

2. View the status column to see the status of the MDisk. Notice that all the MDisks are online. Possible statuses of an MDisk are:
   • Online
   • Offline
   • Excluded
   • Degraded ports
   • Degraded paths
3. View the mode column to see the mode of the disk. Notice that the mode is unmanaged. Possible modes for an MDisk are:
   • Managed
   • Unmanaged
   • Image
4. Use the lsmdisk ­delim : 3 command to see detailed information for the MDisk with an ID of 3. An example of what you might see is:

   id:3
   name:mdisk3
   status:offline
   mode:managed
   mdisk_grp_id:3
   mdisk_grp_name:SSD3
   capacity:136.7GB
   quorum_index: 
   block_size:512
   controller_name SSD
   ctrl_type:6
   ctrl_WWNN:5005076801E87502
   controller_id:1
   path_count:0
   max_path_count:0
   ctrl_LUN_#:0000000000000000
   UID:5000a72000008fbb000000000000000000000000000000000000000000000000
   preferred_WWPN:5000A72A00008FBB
   active_WWPN:5000A72A00008FBB
   node_id:10
   node_name:destiny
   location:1
   fast_write_state:empty
   raid_status:online
   raid_level:raid0
   redundancy:0
   strip_size:256
   spare_goal:2
   spare_protection_min:2
   balanced:yes
   tier:generic_ssd
   site_id:3
   site_name:Quorumslow_write_priority
   fabric_type iscsi
   easy_tier_load high
   encrypt no
   distributed no
   drive_class_id
   drive_count 0
   stripe_width 0
   rebuild_areas_total
   rebuild_areas_available
   rebuild_areas_goal
   dedupe no
   preferred_iscsi_port_id 127
   active_iscsi_port_id 127

   For an MDisk belonging to an iSCSI controller, the iscsi_port_id field in the lsmdisk output, points to the row of lsiscsistorageport output that displays the iSCSI initiator session details. Whether an MDisk is in a degraded or offline state, the status and iogroup_list fields in the lsiscsistorageport can be used to see whether iSCSI controller sessions are down. An example of what you might see is:

   id:0
   name:mdisk0
   status:online
   mode:unmanaged
   mdisk_grp_id:
   mdisk_grp_name:
   capacity:100.0GB
   quorum_index:
   block_size:512
   controller_name:controller0
   ctrl_type:4
   ctrl_WWNN:200400A0B85AD3B7
   controller_id:0
   path_count:2
   max_path_count:2
   ctrl_LUN_#:0000000000000000
   UID:600a0b800076b42000002a1755e4f5e200000000000000000000000000000000
   preferred_WWPN:202500A0B85AD3B7
   active_WWPN:202500A0B85AD3B7
   fast_write_state:empty
   raid_status:
   raid_level:
   redundancy:
   strip_size:
   spare_goal:
   spare_protection_min:
   balanced:
   tier:enterprise
   slow_write_priority:
   fabric_type:fc
   site_id:
   site_name:
   easy_tier_load:medium
   encrypt:no
   distributed:no
   drive_class_id:
   drive_count:0
   stripe_width:0
   rebuild_areas_total:
   rebuild_areas_available:
   rebuild_areas_goal:
   dedupe:no
   preferred_iscsi_port_id:
   active_iscsi_port_id: