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HP 3PAR StoreServ 7450 4-node HP 3PAR StoreServ 7450 Storage Troubleshooting G - Page 38

LD, Format of Possible LD Exception Messages, LD Example 1, LD Suggested Action 1

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LD Displays Logical Disks (LDs) that are not optimal: • Checks for preserved LDs • Checks that current and created availability are the same • Checks for owner and backup • Checks that preserved data space (pdsld) is the same as total data cache • Checks size and number of logging LDs Format of Possible LD Exception Messages LD ld: "LD is not mapped to a volume" LD ld: "LD is in write-through mode" LD ld: "LD has preserved RAID sets and preserved chunklets" LD ld: "LD has reduced availability. Current: , Configured: " LD ld: "LD does not have a backup" LD ld: "LD does not have owner and backup" LD ld: "Logical Ddisk is owned by , but preferred owner is " LD ld: "Logical Disk is backed by , but preferred backup is " LD ld: "A logging LD is smaller than 20G in size" LD ld: "Detailed State:" (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 CLI commands such as showld, showld -d, showldmap, showvvmap, and other such commands. 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 MapV SizeMB UsedMB Use Lgct LgId WThru 88 Ten.usr.0 N 0 normal 0/1/2/3 8704 0 V 0 --- N cli% showldmap Ten.usr.0 Ld space not used by any vv 38 Troubleshooting

Section	Page
HP 3PAR StoreServ 7450 Storage Troubleshooting Guide	1
Contents	3
1 Identifying Storage System Components	6
Understanding Component Numbering	6
Drive Enclosures	6
Controller Nodes	7
PCIe Slots and Ports	8
I/O Modules	9
Power Cooling Modules	9
Power Distribution Units	10
Service Processor	10
2 Understanding LED Indicator Status	12
Enclosure LEDs	12
Bezels LEDs	12
Disk Drive LEDs	13
Storage System Component LEDs	13
Power Cooling Module LEDs	13
Drive PCM LEDs	15
I/O Modules LEDs	16
External Port Activity LEDs	17
Controller Node and Internal Component LEDs	18
Ethernet LEDs	19
FC Port LEDs	19
SAS Port LEDs	20
Interconnect Port LEDs	20
Fibre Channel Adapter Port LEDs	21
Converged Network Adapter Port LEDs	22
Service Processor LEDs	22
3 Powering Off/On the Storage System	25
Powering Off	25
Powering On	25
4 Alerts	27
Getting Recommended Actions	27
5 Troubleshooting	29
The checkhealth Command	29
Using the checkhealth Command	29
Troubleshooting Storage System Components	30
Alert	31
Format of Possible Alert Exception Messages	31
Alert Example	31
Alert Suggested Action	31
Cage	31
Format of Possible Cage Exception Messages	31
Cage Example 1	32
Cage Suggested Action 1	32
Cage Example 2	33
Cage Suggested Action 2	33
Cage Example 3	34
Cage Suggested Action 3	34
Cage Example 4	35
Cage Suggested Action 4	35
Cage Example 5	35
Cage Suggested Action 5	35
Data Encryption at Rest (DAR)	36
Format of Possible DAR Exception Messages	37
DAR Suggested Action	37
Dar Example 2	37
Dar Suggested Action 2	37
Date	37
Format of Possible Date Exception Messages	37
Date Example	37
Date Suggested Action	37
LD	38
Format of Possible LD Exception Messages	38
LD Example 1	38
LD Suggested Action 1	38
LD Example 2	39
LD Suggested Action 2	39
LD Example 3	39
LD Suggested Action 3	39
LD Example 4	40
LD Suggested Action 4	40
License	40
Format of Possible License Exception Messages	40
License Example	40
License Suggested Action	41
Network	41
Format of Possible Network Exception Messages	41
Network Example 1	41
Network Suggested Action 1	41
Network Example 2	41
Network Suggested Action 2	41
Node	42
Format of Possible Node Exception Messages	42
Suggested Node Action, General	42
Node Example 1	42
Node Suggested Action 1	43
Node Example 2	43
Node Suggested Action 2	43
Node Example 3	44
Node Suggested Action 3	44
PD	44
Format of Possible PD Exception Messages	45
PD Example 1	45
PD Suggested Action 1	45
PD Example 2	46
PD Suggested Action 2	46
PD Example 3	47
PD Suggested Action 3	47
PD Example 4	48
PD Suggested Action 4	48
PD Example 5	48
PD Suggested Action 5	48
PD Example 6	49
PD Suggested Action 6	49
Port	49
Format of Possible Port Exception Messages	49
Port Suggested Actions, General	49
Port Example 1	49
Port Suggested Action 1	49
Port Example 2	51
Port Suggested Action 2	51
Port Example 3	51
Port Suggested Action 3	51
Port Example 4	51
Port Suggested Action 4	51
Port Example 5	52
Port Suggested Action 5	52
RC	52
Format of Possible RC Exception Messages	52
RC Example	52
RC Suggested Action	53
SNMP	53
Format of Possible SNMP Exception Messages	53
SNMP Example	53
SNMP Suggested Action	53
Task	53
Format of Possible Task Exception Messages	53
Task Example	53
Task Suggested Action	53
VLUN	54
Format of Possible VLUN Exception Messages	54
VLUN Example	54
VLUN Suggested Action	54
VV	55
Format of Possible VV Exception Messages	55
VV Suggested Action	55
Troubleshooting Storage System Setup	55
Storage System Setup Wizard Errors	55
Collecting SmartStart Log Files	61
Collecting Service Processor Log Files	61
Contacting HP Support about System Setup	61
6 Support and Other Resources	63
Contacting HP	63
HP 3PAR documentation	63
Typographic conventions	66
HP 3PAR branding information	66