HP 3PAR InForm OS 3.1.1 Messages and Operators Guide

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 RAID -Detailed_State- Own SizeMB UsedMB Use Lgct LgId WThru
MapV
88 Ten.usr.0 0 normal 0/1/2/3 8704 0 V 0 --- N
N
cli% showldmap Ten.usr.0
Ld space not used by any vv
LD Example 2
Component -------Description-------- Qty
LD LDs in write through mode 3
Component -Identifier-- --------Description---------
LD ld:Ten.usr.12 LD is in write-through mode
LD Suggested Action 2
Examine the identified LD(s) using CLI commands such as showld, showld –d, showldch, and
showpd for any failed/missing disks. Write-through mode (WThru) indicates that host I/O operations
must be written through to the disk before the host I/O command will be acknowledged. This is
usually due to a node-down condition, when node batteries are not working, or where disk
redundancy is not optimal.
cli% showld Ten*
Id Name RAID -Detailed_State- Own SizeMB UsedMB Use Lgct LgId
WThru
MapV
91 Ten.usr.3 0 normal 1/0/3/2 13824 0 V 0 --- N N
92 Ten.usr.12 0 normal 2/3/0/1 28672 0 V 0 --- Y N
cli% showldch Ten.usr.12
Ldch Row Set PdPos Pdid Pdch State Usage Media Sp From To
0 0 0 3:3:0 108 6 normal ld valid N --- ---
11 0 11 --- 104 74 normal ld valid N --- ---
cli% showpd 104
-Size(MB)-- ----Ports----
Id CagePos Type Speed(K) State Total Free A B
104 4:9:0? FC 15 failed 428800 0 ----- -----
LD Example 3
Component ---------Description--------- Qty
LD LDs with reduced availability 1
Troubleshooting Storage System Components 301