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

LD Example 2

Component -------Description-------- Qty
LD LDs in write through mode
Component -Identifier-- --------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
showpd for any failed or 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 is 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
WThru
MapV
91 Ten.usr.3
92 Ten.usr.12
cli% showldch Ten.usr.12
Ldch Row Set PdPos Pdid Pdch
0 0
11 0 11
cli% showpd 104
Id CagePos Type Speed(K) State
104 4:9:0?

LD Example 3

Component ---------Description--------- Qty
LD LDs with reduced availability
Component --Identifier-- ------------Description---------------
LD ld:R1.usr.0

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 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 LDs using CLI commands such as showld, showld
showpd for any failed or missing disks. In the example below, the LD should have cage-level
32 Troubleshooting
RAID -Detailed_State- Own
0 normal
0 normal
State Usage Media Sp From
0 3:3:0 108 6 normal
--- 104 74 normal
FC 15 failed 428800
LD has reduced availability.
3
SizeMB UsedMB Use Lgct LgId
1/0/3/2 13824
2/3/0/1 28672
ld valid N --- ---
ld valid N --- ---
-Size(MB)-- ----Ports----
Total Free A B
0 ----- -----
1
d, showldch, and
0 V 0 ---
0 V 0 ---
To
Current: ch, Configured: cage
d, showldch, and
N N
Y N