HP 3PAR F-Class, T-Class, StoreServ 10000 Storage Troubleshooting Guide (QL226-96953, May 2013)

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
Component --Identifier-- ------------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 will be reported. Chunklets may have been
manually moved with movech or by specifying it during a tune operation or during failure conditions
such as node, path, or cage failures. The HA levels from highest to lowest are port, cage, mag,
and ch (disk).
Examine the identified LD(s) using CLI commands such as showld, showld –d, showldch, and
showpd for any failed or missing disks. In the example below, the LD should have cage-level
availability but it currently has chunklet (disk) level availability (i.e., the chunklets are on the same
disk).
cli% showld -d R1.usr.0
Id Name CPG RAID Own SizeMB RSizeMB RowSz StepKB SetSz Refcnt Avail CAvail
32 R1.usr.0 --- 1 0/1/3/2 256 512 1 256 2 0 cage ch
cli% showldch R1.usr.0
Ldch Row Set PdPos Pdid Pdch State Usage Media Sp From To
0 0 0 0:1:0 4 0 normal ld valid N --- ---
1 0 0 0:1:0 4 55 normal ld valid N --- ---
Troubleshooting Storage System Components 109