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Managing the AMASS File System
6-00028-01 Rev A Cache Commands C-3
Cache Commands
Using new AMASS commands, you can now assign cache
block list values for reads and writes per volume group. If you
do not use the Enhanced Cache Control feature, AMASS reuses
the cache block at the head of the free list, which is the oldest
cache block in the system. However, by using both the
setcblist and setcbwght commands, AMASS will instead
reuse the cache block list with the highest weight factor score.
Therefore, a system administrator can keep files for a specific
volume group in cache longer and the files can consequently be
accessed more quickly by client applications. These new cache
control commands are located in /usr/amass/bin.
setcblist
Assigns a read and write cache block list value for a specific
volume group. The values are separate for reads and writes
within the volume group.
Command Page
setcblist C-3
cblist C-5
setcbwght C-7
cbwghtlist C-9
- Managing the 1
- File System 1
- Trademark Notice 2
- Copyright Notice 2
- Technical Assistance 2
- Documentation 2
- READER COMMENT FORM 3
- P-2 Preface 6-00028-01 Rev A 6
- 6-00028-01 Rev A Preface P-3 7
- P-4 Preface 6-00028-01 Rev A 8
- Conventions 9
- Contact 10
- Publications 10
- Related 11
- Secured Web 11
- P-8 Preface 6-00028-01 Rev A 12
- Contents 13
- Operational Tasks 2 14
- Command Reference 3 15
- Accessing Storage Devices 16
- 6-00025-01 Rev A Contents xv 19
- Utility Reference 4 22
- 6-00025-01 Rev A Contents xix 23
- 6-00025-01 Rev A Contents xxi 25
- Troubleshooting Tools 6 26
- Backup Scripts for HP-UX A 27
- Fine-tune Block Size B 27
- Cache Commands C 27
- Initial Setup 29
- Slot Position 31
- Step Command Description 32
- amass or root 37
- Volume Groups Defined 41
- Space Pool 42
- Cleaning Group 42
- Numeric Volume Group 42
- Media Verification 42
- /archive 43
- AMASS archives /pubs 43
- When a Group Runs 44
- Out-of-Space 44
- Operational 51
- Database and Journal Backups 53
- Manual Backup 57
- Replace a Full Backup Volume 59
- Restore AMASS Database 60
- MAXIOSZ value to 61
- Reinitialize Database 62
- Back Up Media in Library 64
- Use Redundant Media 65
- Take a Drive Out of Service 66
- Return a Drive to Service 67
- To delete: 68
- • All files on a volume 68
- Delete Volume Group 70
- Recycle a Volume 71
- Remove Media From Library 73
- Read Offline Volume 75
- Read Offline Volumes 76
- /tmp/sysop.out 77
- -s option returns 78
- Add Space to Volume Group 79
- Create Space Pool 80
- Reassign Volume Group 81
- Activate the File System 83
- Modify Configuration File 85
- MAXIOSZ Changes 87
- Return Code Description 92
- -1 error 92
- /usr/filesysdb/journal 96
- /usr/filesysdb 96
- For libraries only: 98
- For standalone drive only: 98
- Additional Information 99
- Generated Column Titles 100
- Topics Description 101
- Option Description 102
- Installing 107
- Option Definition 108
- command 109
- Value Description 111
- Shutdown Tasks 112
- /usr/amass/bin 113
- ./amassstat 113
- [-acfisvw] 113
- [-f -t seconds] 113
- Fields Description 118
- WriteVerify 120
- Network Libraries 122
- ./bulkinlet 123
- [volumegroup] 123
- [jukeboxnumber] 123
- SCSI, Multislot Libraries 125
- Reload Existing Volumes 127
- # su root 127
- Supported Network Libraries 129
- Library Library Interface 130
- Command Characteristic 132
- Optional Feature 138
- /etc/vold.conf file 139
- /etc/fsd.auto file 139
- /etc/fsd.tab 139
- StorageTek drives: 144
- 2 71 (0x021001e6) 145
- Field Description 146
- # cd /archive/accting 148
- Prerequisites 149
- Automatic Cleaning 154
- ADIC Scalar 1000 155
- Global IDLETIME Parameter 163
- Per Drive drivestat -e 163
- Output Examples 164
- Eject Value for A Drive 164
- Eject Value for All Drives 164
- IDLETIME parameter has been 165
- # drivestat -e “?” all 166
- Examples 168
- -s) generated by 173
- /archive/projects 178
- Volume Group 2 179
- Volume Group 0 179
- PATH variable 181
- • I/O requests 182
- The user must be amass 183
- # sysperf 5 -k -c 186
- Online O = Offline 190
- Inactive 190
- /usr/amass/BarcodeTemplate 193
- -f metafilepath 196
- At the Source Site 197
- At the Destination Site 202
- /tmp/newcustomers metadata 203
- /tmp/newcustomers 203
- [-cdeirstw] 209
- [-j jukeboxnumber] 209
- Characteristics 213
- /archive) 215
- ./techpubs 216
- ./mrktpubs 216
- ./volclean 221
- C” for volcomp and sets it 225
- I” for Inactive 225
- Source Media 228
- Destination Media 228
- Read Drive 228
- Write Drive 228
- /usr/amass/bin in 229
- File Names Last Example 243
- Using cpio Command 244
- Using tar Command 245
- [volumelist] 247
- For optical platters: 248
- For tape drives: 249
- Command Description 251
- -b blocksize) with care 252
- Defined” on page 1-13 254
- Ready? (y/n) y 259
- Inlet operation completed 259
- Reset to Zero 266
- AMASS assigned this 277
- Name Contention 294
- # volusage 298
- Reference 301
- Utilities 303
- Scripts in /usr/amass/tools 304
- Step 3. Reboot the system 306
- # cd /usr/amass/tools 306
- # ./amass_atboot -d 306
- When to Use Script 307
- Errors and 308
- Corrective Action 308
- Daemon Description 311
- Group Test Name Definition 313
- Step 1. Log in as root 314
- ./amass_tests 315
- Definition 318
- Hardware Utility Page 325
- Step 2. Enter the following: 327
- # cd /usr/amass/utils 327
- # init_element 1 327
- # mediaeject 1 2 329
- View Status for One Element 335
- /usr/amass/utils 336
- ./mediamove 336
- When to Use Utility 339
- ./mediawrite 341
- [-b blocksize] 341
- Installing AMASS 346
- Database Utilities 351
- # su amass 354
- Password: 354
- Exit codes follow: 357
- ./fileincache 357
- ./sysdbchk 369
- SYSDBCHK_CACHE_DIR 370
- ./volprint 373
- Trouble 379
- AMASS Appears Hung 381
- Cancel Outstanding Requests 382
- Operating Issues 383
- AMASS Database is Bad 384
- 08:42 /usr/amass/fslock1 388
- /etc/hosts file corrupted? 391
- AMASS Does Not Start 394
- If Journal Partition Crashes 395
- /dev/rst12 396
- If Database Partition Crashes 397
- For SCSI-attached libraries: 398
- For standalone drives: 398
- If Cache Partition Crashes 399
- System Panics 401
- Operating 403
- Files in /dir Directory 403
- Power Failure 407
- Messages Generated by AMASS 408
- Scripts for 413
- ŽŽŽŽŽ/etc/archivedate.AMASS 417
- ŽŽŽŽŽŽ>>${TEMPFILE} 417
- Fine-tune 423
- Block Size 423
- Optimize Tape Block Size 425
- MAXIOSZ 426
- . This concept is 428
- The configurable -b 428
- Commands 431
- Cache Commands 433
- ./setcblist 434
- [-r read_list volumegroup] 434
- [-w write_list volumegroup] 434
- ./setcbwght 438
- 6-00028-01 Rev A Index INX-1 441
- INX-2 Index 6-00028-01 Rev A 442
- 6-00028-01 Rev A Index INX-3 443
- INX-4 Index 6-00028-01 Rev A 444
- 6-00028-01 Rev A Index INX-5 445
- INX-6 Index 6-00028-01 Rev A 446
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