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HP MSA2324sa HP StorageWorks 2300 Family Modular Smart Array CLI reference gui - Page 29

clear cache, Description, Syntax, Parameters, Example

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clear cache Description Clears unwritable cache data from both controllers. This data cannot be written to disk because it is associated with a volume that no longer exists or whose disks are not online. If the data is needed, the volume's disks must be brought online. If the data is not needed it can be cleared, in which case it will be lost and data will differ between the host and disk. Unwritable cache is also called orphan data. You can clear unwritable cache data for a specified volume or for all volumes. Syntax clear cache [volume volume] Parameters volume volume Optional. Name or serial number of the volume whose cache data should be cleared. For syntax, see Command syntax. If this parameter is omitted, the command clears any unneeded orphaned data for volumes that are no longer online or that no longer exist. Example Clear the cache in both controllers for volume V1: # clear cache volume v1 Success: Command completed successfully HP StorageWorks 2000 G2 Modular Smart Array CLI Reference Guide 29

Section	Page
Contents	3
Tables	7
About this guide	9
Intended audience	9
Prerequisites	9
Related documentation	9
Document conventions and symbols	9
HP technical support	10
Product warranties	10
Subscription service	10
HP web sites	10
Documentation feedback	10
Using the CLI	11
Accessing the CLI	11
CLI output modes	11
Using CLI interactively	12
Using CLI scripts	12
Using the XML API	13
Scripting guidelines	14
XML API examples	14
XML API DTD content	16
XML API basetypes	17
XML API optimization	17
Command syntax	19
Keywords and parameters	19
Disks	19
Vdisks	19
Volumes	19
Ports	19
Command completion, editing, and history	20
Viewing help	20
Size representations	21
Event log	21
Categorical list of commands	23
Alphabetical list of commands	25
abort scrub	26
abort verify	27
abort volumecopy	28
clear cache	29
clear disk-metadata	30
clear events	31
clear expander-status	32
convert master-to-std	33
convert std-to-master	34
create chap-record	35
create host	36
create master-volume	37
create schedule	38
create snap-pool	39
create snapshots	40
create task	41
create user	43
create vdisk	45
create volume	47
create volume-copy	48
create volume-set	49
delete all-master-volumes	50
delete all-snapshots	51
delete chap-records	52
delete host	53
delete master-volume	54
delete schedule	55
delete snap-pool	56
delete snapshot	57
delete snapshot-write-data	58
delete task	59
delete user	60
delete vdisk	61
delete volume	62
dequarantine	63
exit	64
expand master-volume	65
expand snap-pool	66
expand vdisk	67
expand volume	68
map volume	69
meta	71
ping	72
rescan	73
reset host-link	74
reset snapshot	75
restart	76
restore defaults	77
rollback master-volume	78
scrub vdisk	79
set advanced-settings	80
set auto-write-through-trigger	82
set awt	82
set cache-parameters	83
Cache write policy	84
Cache optimization mode	84
Cache read-ahead size	84
Cache redundancy mode	85
set chap-record	86
set cli-parameters	87
set controller-date	90
set debug-log-parameters	91
set disk-parameters	92
set email-parameters	93
set enclosure	94
set expander-fault-isolation	95
set expander-phy	96
set host-name	97
set host-parameters	98
set iscsi-parameters	100
set job-parameters	101
set led	102
set network-parameters	103
set password	104
set prompt	105
set protocols	106
set snap-pool-policy	107
set snap-pool-threshold	108
set snmp-parameters	109
set spares	110
set system	111
set user	112
set vdisk	114
set volume	115
show advanced-settings	116
show auto-write-through-trigger	118
show awt	118
show cache-parameters	119
show chap-records	121
show cli-parameters	122
show configuration	124
show controller-date	125
show controllers	126
show debug-log-parameters	128
show disk-parameters	129
show disks	130
show email-parameters	132
show enclosure-status	133
show enclosures	135
show events	136
show expander-status	138
show frus	140
show host-maps	141
show host-parameters	143
show hosts	145
show iscsi-parameters	146
show job-parameters	147
show license	148
show master-volumes	149
show network-parameters	151
show ntp-status	152
show ports	153
show protocols	155
show redundancy-mode	156
show refresh-counters	157
show sas-link-health	158
show schedule-details	159
show schedules	160
show sensor-status	161
show shutdown-status	163
show snap-pools	164
show snapshots	165
show snmp-parameters	167
show system	168
show system-parameters	169
show task-details	170
show tasks	173
show users	174
show vdisks	175
show volume-maps	177
show volumecopy-status	178
show volumes	179
shutdown	181
stty	182
test	183
trust	183
unmap volume	184
verify vdisk	185
versions	185
volumecopy	186
Glossary	189