HP 3PAR StoreServ 7000 Storage Troubleshooting Guide

Checks the following and displays logical disks (LD) that are not optimal:

• Preserved LDs

• Verifies that current and created availability are the same

• Owner and backup

• Verifies preserved data space (pdsld) is the same as total data cache

• Size and number of logging LDs

Format of Possible LD Exception Messages

LD ld:<ldname> "LD is not mapped to a volume"

LD ld:<ldname> "LD is in write-through mode"

LD ld:<ldname> "LD has <X> preserved RAID sets and <Y> preserved chunklets"

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> "Logical Ddisk is owned by <owner>, but preferred owner is <powner>"

LD ld:<ldname> "Logical Disk is backed by <backup>, but preferred backup is <pbackup>"

LD ld:<ldname> "A logging LD is smaller than 20G in size"

LD ld:<ldname> "Detailed State:<ldstate>" (degraded or failed)

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"

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

LD Suggested Action 1

Examine the identified LDs using the following CLI commands:showld, showld –d, showldmap,

and showvvmap.

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

cli% showldmap Ten.usr.0

Ld space not used by any vv

36 Troubleshooting