Format Of Possible Ld Exception Messages; Ld Example 1; Ld Suggested Action 1 - HP 3PAR StoreServ 7000 Troubleshooting Manual

LD
Displays Logical Disks (LDs) that are not optimal:
Checks for preserved LDs
Checks that current and created availability are the same
Checks for owner and backup
Checks that preserved data space (pdsld's) is the same as total data cache
Checks size and number of logging LDs

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.
LD ld:<ldname> "LD does not have a backup"
LD ld:<ldname> "LD does not have owner and backup"
LD ld:<ldname> "Logical Ddisk 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 -------Description-------- Qty
LD LDs not mapped to a volume
Component -Identifier-- --------Description---------
LD ld:Ten.usr.0

LD Suggested Action 1

Examine the identified LDs using CLI commands such as showld, showld
showvvmap, and other such commands.
LDs are normally mapped to (used by) VVs but they can be disassociated with a VV if a VV is
deleted without the underlying LDs being deleted, or by an aborted tune operation. Normally, you
would remove the unmapped LD to return its chunklets to the free pool.
cli% showld Ten.usr.0
Id Name
MapV
88 Ten.usr.0
N
cli% showldmap Ten.usr.0
Ld space not used by any vv
LD is not mapped to a volume
RAID -Detailed_State- Own
0 normal
Current: <cavail>, Configured: <avail>"
10
SizeMB UsedMB Use Lgct LgId WThru
0/1/2/3 8704
Troubleshooting Storage System Components
d, showldmap,
0 V 0 --- N
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