HP 3PAR User's Guide Page 180
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15 Hist Commands
histch
DESCRIPTION
The histch command displays a histogram of service times in a timed loop for individual chunklets.
SYNTAX
histch [options <arg>]
AUTHORITY
Any role in the system.
OPTIONS
–ld <LD_name>
Specifies the Logical Disk (LD), identified by name, from which chunklet statistics are sampled.
–ch <chunklet_num>
Specifies that statistics are limited to only the specified chunklet, identified by number.
–metric both|time|size
Selects which metric to display. Metrics can be one of the following:
• both - (Default) Displays both I/O time and I/O size histograms.
• time - Displays only the I/O time histogram.
• size - Displays only the I/O size histogram.
–timecols <fcol> <lcol>
For the I/O time histogram, show the columns from the first column <fcol> through last column
<lcol>. The available columns range from 0 through 31.
• The first column (<fcol>) must be a value greater than or equal to 0, but less than the value
of the last column (<lcol>) (default value of 6).
• The last column (<lcol>) must be less than or equal to 31 (default value of 15).
• The first column includes all data accumulated for columns less than the first column and the
last column includes accumulated data for all columns greater than the last column.
–sizecols <fcol> <lcol>
For the I/O size histogram, show the columns from the first column (<fcol>) through the last
column (<lcol>). Available columns range from 0 through 15.
• The first column (<fcol>) must be a value greater than or equal to 0, but less than the value
of the last column (<lcol>) (default value of 3).
• The last column (<lcol>) must be less than or equal to 15 (default value of 11).
-pct
Shows the access count in each bucket as a percentage.
NOTE: For the following options, by default the histogram shows data from the start of the
command.
–prev|–begin
180 Hist Commands
- HP 3PAR OS 3.1.2 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 8 Contents 8
- Contents 9 9
- 10 Contents 10
- Syntax and Conventions 11
- Syntax Rules 11
- Glob-Style Pattern 12
- Numbering Formats 13
- Object Sets 13
- Regular Expressions Patterns 13
- Provisioning 14
- VV Name Patterns 15
- COMMAND NAME 16
- Exit Status 17
- 2 Commands Quick Reference 18
- Domain Management Commands 19
- Alert Severity Levels 20
- Help and Utility Commands 21
- Task Management Commands 21
- LDAP Management Commands 22
- Licensing Management Commands 22
- Node Date Information 23
- Controller Node Properties 23
- Controller Node EEPROM Log 23
- Port Information 24
- Battery Management 25
- System Manager 25
- Node Rescue 25
- Chunklet Statistics 25
- System Tuner 27
- Dynamic Optimization 27
- Virtual Volume Statistics 27
- Preserved Data Commands 28
- Replication Commands 28
- Service Commands 30
- General System Maintenance 31
- QoS Commands 31
- SNMP Agent Commands 32
- System Reporter Commands 33
- CIM Server Commands 34
- Sparing Commands 34
- SSH Access Commands 35
- Task Schedule Commands 35
- User Management Commands 36
- Volume Management Commands 37
- Logical Disk Management 38
- Space and Storage Management 38
- Template Management 39
- Virtual Volume Management 39
- 3 Add Command 42
- 4 Admit Commands 44
- 20 disks admitted 46
- 46 Admit Commands 46
- “showpd” (page 420) 47
- 48 Admit Commands 48
- 50 Admit Commands 50
- 2 VVs admitted 54
- 54 Admit Commands 54
- 5 Cancel Command 55
- 6 Change Command 56
- 7 Check Commands 57
- 60 Check Commands 60
- 62 Check Commands 62
- 66 Check Commands 66
- # checkrclink stopclient 69
- # checkrclink stopserver 69
- 8 CLI Command 72
- ENVIRONMENT VARIABLES 74
- 9 Compact Commands 75
- 10 Control Commands 79
- 86 Control Commands 86
- 90 Control Commands 90
- 94 Control Commands 94
- 11 Create Commands 95
- 96 Create Commands 96
- 100 Create Commands 100
- 102 Create Commands 102
- SPECIFIERS 103
- RESTRICTIONS 103
- EXAMPLES 103
- • GB = 1024 MB 104
- • TB = 1024 GB 104
- For this command: 104
- • MB = 1048576 bytes 104
- 106 Create Commands 106
- DESCRIPTION 107
- AUTHORITY 107
- 112 Create Commands 112
- ◦ MB = 1048576 bytes 114
- ◦ GB = 1073741824 bytes 114
- 116 Create Commands 116
- 124 Create Commands 124
- 128 Create Commands 128
- 1:4:1:23410002AC000060 130
- 130 Create Commands 130
- 134 Create Commands 134
- 140 Create Commands 140
- 142 Create Commands 142
- 146 Create Commands 146
- 148 Create Commands 148
- 162 Create Commands 162
- To add a VV to the set: 163
- 12 Dismiss Commands 164
- 166 Dismiss Commands 166
- 168 Dismiss Commands 168
- 13 Free Command 170
- 14 Grow Commands 171
- 172 Grow Commands 172
- 178 Grow Commands 178
- # growvv vv1 2t 179
- 15 Hist Commands 180
- 188 Hist Commands 188
- 192 Hist Commands 192
- ◦ less than or equal to 31 195
- 198 Hist Commands 198
- 200 Hist Commands 200
- 202 Hist Commands 202
- 16 Import Command 204
- 17 Locate Commands 206
- 208 Locate Commands 208
- 18 Move Commands 210
- 212 Move Commands 212
- 214 Move Commands 214
- (quality) of the moves 216
- 218 Move Commands 218
- 222 Move Commands 222
- 19 Promote Commands 225
- 20 Remove Commands 228
- 230 Remove Commands 230
- 234 Remove Commands 234
- 236 Remove Commands 236
- 238 Remove Commands 238
- 240 Remove Commands 240
- # removercopytarget System1 242
- # removercopytarget System2 242
- 242 Remove Commands 242
- 244 Remove Commands 244
- EXIT STATUS 245
- 246 Remove Commands 246
- 248 Remove Commands 248
- 250 Remove Commands 250
- Remove the following tasks? 251
- Remove all tasks? 252
- 252 Remove Commands 252
- User removed 254
- 254 Remove Commands 254
- 260 Remove Commands 260
- 21 Service Commands 261
- SUBCOMMANDS 265
- 268 Service Commands 268
- 22 Set Commands 271
- 272 Set Commands 272
- 278 Set Commands 278
- 280 Set Commands 280
- (see “showcage” (page 361)) 281
- 282 Set Commands 282
- MinimumDefaultNumber of Nodes 287
- 24 GB96 GB5-6 287
- 32 GB128 GB7-8 287
- 288 Set Commands 288
- 290 Set Commands 290
- 294 Set Commands 294
- 308 Set Commands 308
- Old password: 310
- 310 Set Commands 310
- 312 Set Commands 312
- 318 Set Commands 318
- 322 Set Commands 322
- 324 Set Commands 324
- 326 Set Commands 326
- 328 Set Commands 328
- 330 Set Commands 330
- 332 Set Commands 332
- 336 Set Commands 336
- 338 Set Commands 338
- 340 Set Commands 340
- 342 Set Commands 342
- 348 Set Commands 348
- 23 Show Commands 350
- 352 Show Commands 352
- 358 Show Commands 358
- 360 Show Commands 360
- 366 Show Commands 366
- 368 Show Commands 368
- 372 Show Commands 372
- Node Date 373
- Id Name Members 377
- 7 domainset domainset.1 377
- domainset.2 377
- 380 Show Commands 380
- 396 Show Commands 396
- 404 Show Commands 404
- Restrictions 410
- 422 Show Commands 422
- ◦ failed – The PD has failed 424
- 436 Show Commands 436
- ◦ alpa_wait. ALPA waiting 442
- ◦ login_wait. Login waiting 442
- ◦ ready. Link is ready 442
- 450 Show Commands 450
- 452 Show Commands 452
- 458 Show Commands 458
- # showrctransport 464
- 464 Show Commands 464
- 466 Show Commands 466
- 468 Show Commands 468
- 470 Show Commands 470
- [password] 474
- 474 Show Commands 474
- 480 Show Commands 480
- 482 Show Commands 482
- Capacities 485
- 488 Show Commands 488
- Name Type Other Options 494
- 494 Show Commands 494
- 496 Show Commands 496
- Joe all super N 497
- 498 Show Commands 498
- 508 Show Commands 508
- ◦ copy_source. Copy Source 512
- 518 Show Commands 518
- 522 Show Commands 522
- 24 Shutdown Commands 530
- 532 Shutdown Commands 532
- 26 Start Commands 577
- 580 Start Commands 580
- # startrcopy 582
- 582 Start Commands 582
- # startrcopygroup Group1 583
- 584 Start Commands 584
- 586 Start Commands 586
- 27 Stat Commands 588
- 596 Stat Commands 596
- 608 Stat Commands 608
- 618 Stat Commands 618
- 622 Stat Commands 622
- 624 Stat Commands 624
- 626 Stat Commands 626
- 630 Stat Commands 630
- 632 Stat Commands 632
- 28 Stop Commands 633
- # stoprcopy –stopgroups 634
- 634 Stop Commands 634
- # stoprcopygroup Group1 636
- 636 Stop Commands 636
- 29 Sync Command 639
- 640 Sync Command 640
- 30 Tune Commands 642
- 644 Tune Commands 644
- Task 999 started 652
- 652 Tune Commands 652
- 654 Tune Commands 654
- 31 Update Commands 658
- Updating VV avvro 660
- 660 Update Commands 660
- 32 Upgrade Commands 662
- 664 Upgrade Commands 664
- 33 Wait Command 665
- Contacting HP 666
- HP 3PAR documentation 666
- Typographic conventions 669
- HP 3PAR branding information 669
- 35 Documentation feedback 670
- 672 Index 672
- 674 Index 674
- 676 Index 676
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