3PAR InForm® OS 2.3.1 Messages and Operator's Guide (320-200181 Rev B, February 2010)

11.15
Troubleshooting InServ Storage Server Components
InForm OS Version 2.3.1 Messages and Operator’s Guide
LD ld:<ldname> "LD has reduced availability. Current: <cavail>, Configured:
<avail>"
LD ld:<ldname> "LD does not have a backup"
LD ld:<ldname> "LD does not have owner and backup"
LD ld:<ldname> "A logging LD is not 20G in size"
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"
11.4.4.2 LD Example 1
Component -------Description-------- Qty
LD LDs not mapped to a volume 10
Component -Identifier-- --------Description---------
LD ld:Ten.usr.0 LD is not mapped to a volume
11.4.4.3 LD Suggested Action 1
Examine the identified LD(s) using CLI commands such as showld, showld –d, showldmap,
showvvmap, etc.
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
11.4.4.4 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
11.4.4.5 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-