HP 3PAR StoreServ 7000 - Ld Example 2; Ld Suggested Action 2; Ld Example 3; Ld Suggested Action 3

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 vv.9.usr.3
Id Name RAID -Detailed_State- Own SizeMB UsedMB Use Lgct LgId WThru MapV
57 vv.9.usr.3 1 normal 1/0 8192 0 C,V 0 --- N N
---------------------------------------------------------------------
1 8192 0
cli% showldmap vv.9.usr.3
Ld space not used by any vv
ld Example 2
Component -------Summary Description-------- Qty
LD LDs in write through mode 3
Component -Identifier-- --------Detailed Description---------
LD ld:Ten.usr.12 LD is in write-through mode
ld Suggested Action 2
Examine the identified LDs using CLI commands such as showld, showld –d, showldch, and
showpd for any failed or missing drives. Write-through mode (WThru) indicates that host I/O
operations must be written through to the drive before the host I/O command is acknowledged.
This is usually due to a node-down condition, when node batteries are not working, or where drive
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 ---------Summary Description--------- Qty
LD LDs with reduced availability 1
Component --Identifier-- ------------Detailed Description---------------
LD ld:R1.usr.0 LD has reduced availability. Current: ch, Configured: cage
ld Suggested Action 3
LDs are created with certain high-availability characteristics, such as -ha -cage. If chunklets in
an LD get moved to locations where the Current Availability (CAvail) is not at least as good as
the desired level of availability (Avail), this condition is reported. Chunklets might have been
Troubleshooting Storage System Components 49