multiple nodes, use the CLI showport command to determine if a port is offline or misconfigured.
A missing or rebooting node will cause a port to be offline.
cli% showvlun -v testvv
Active VLUNs
Lun VVName HostName -Host_WWN/iSCSI_Name- Port Type Status ID
2 testvv testhost 10000000C9E5E0B9 3:1:1 host active 1
cli% showhost testhost
Id Name Persona -WWN/iSCSI_Name- Port
0 testhost Generic-ALUA 10000000C9E5E0B9 3:1:1
cli% createhost -add testhost 10000000C9E5E0B8
cli% showhost testhost
Id Name Persona -WWN/iSCSI_Name- Port
0 testhost Generic-ALUA 10000000C9E5E0B9 3:1:1
10000000C9E5E0B8 2:1:1
ld
Checks the following and displays Logical Drives (LDs) that are not optimal:
• Preserved LDs
• Verfies that current and created availability are the same
• Owner and backup are correct
• Verfies preserved data space (pdsld) is the same as total data cache
• Size and number of logging LDs
• LDs that are in failed or degraded state
• LDs are mapped to volumes
• LDs that are in write-through mode
Format of Possible ld Exception Messages
LD ld:<ldname> "LD is not mapped to a volume"
LD ld:<ldname> "LD is in write-through mode"
LD ld:<ldname> "LD has <X> preserved RAID sets and <Y> preserved chunklets"
LD ld:<ldname> "LD has reduced availability. Current: <cavail>, Configured: <avail>"
LD ld:<ldname> "LD does not have a backup"
LD ld:<ldname> "LD does not have owner and backup"
LD ld:<ldname> "Logical Disk is owned by <owner>, but preferred owner is <powner>"
LD ld:<ldname> "Logical Disk is backed by <backup>, but preferred backup is <pbackup>"
LD ld:<ldname> "A logging LD is smaller than 20G in size"
LD ld:<ldname> "Detailed State:<ldstate>" (degraded or failed)
LD -- "Number of logging LD's does not match number of nodes in the cluster"
LD -- "Preserved data storage space does not equal total node's Data memory"
ld Example 1
Component -------Summary Description-------- Qty
LD LDs not mapped to a volume 1
Component -Identifier-- --------Detailed Description---------
LD ld:vv.9.usr.3 LD is not mapped to a volume
ld Suggested Action 1
Examine the identified LDs using CLI commands such as showld, showld –d, showldmap,
showvvmap, and other such commands.
48 Troubleshooting
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