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Managing virtual libraries
96267 • G Chapter 4 VTL operations 85
VTLsupportstwotypesofcompression:
■ Hardwarecompression‐usesaHifnExpressDR1000(1GB/seccompression)or
DR600(600MB/sec)compressioncard.Alicense keycodeisrequiredfor
hardwarecompression.
■ Softwarecom pre ssi on‐usesanLZOalgorithmthatrunsontheVTLserver.
Inordertousecompre ssi on, youmustalsoenabletapedrivecompressi on inyour
backupapplication.
Note – Note:Ifyouarealready usingsoftwarecompressionthatissuppliedbyyour
backupapplication,youshouldnotuseVTL’scompression.Usingbothtypesof
compressionwillcau s eVTLtotrytocompressalready‐com pre ssed dataandthis
canslowdownyourbackups.
▼ To enableor disablecompression:
1. Enabl etapedrivecompressioninyourbackupappl icat ion.
2. Ifyouareusingh ardwarecompression,installacertifiedcompressioncardin
yourVTLserver.
YoucanhaveuptotwocompressioncardsperVTLserver.
Thecompressioncard(s)mustbeinstalledbeforecompressionbegins.Ifyoutryto
usehardwarecompression an da
compressioncardisnotavailable,VTLwillsend
anerrormessagetotheconsoleeventloganduncompr esseddatawillbewrittento
thevirtualtape drive.
3. IntheVTLConsole, right‐cl ick onVirtualT apeLibrarySystemandselect
Properties.
4. SelecttheEnableVirtualT apeLib rarycompressionmodecheckboxand
specifywhetheryouare
usingSoftwareorHardwarecompression.
IfyouareupgradingaVTLsystemthatpreviouslyusedsoftwarecompressionto
nowusehardwarecompression,thecompressi o nmodewillbeswitchedto
hardwarewhenthetapeisoverwritten.
Bothtypesofcompressionareglobalsetti ng s, whichmeansthattheywillapplyto
alltapes
inyoursystem.
IfcompressionisenabledontheVTLse rver,youcanstilldisableorenable
compressiononeachindivid ual virtualtapedriveinthesa me mannerasrealtape
drives‐‐viayourbackupapplicationorviaSCSIcommandswhicharesentbythe
operatingsystem.
- Virtual Tape Library 1
- Revision History 3
- Contents 5
- 96267 • G Contents vii 7
- 96267 • G Contents ix 9
- Aboutthisbook 11
- Commentingonthisbook 13
- 96267 • G 1 15
- Features 16
- Improvedreliability 19
- KeyVTLfeaturesandoptions 22
- VTLhigh‐availabilityoption 23
- Managementpathfailover 24
- Storagepathfailover 25
- Failoverduringreplication 25
- Mirroringandfailover 25
- AutomatedTapeCaching 26
- Virtualtapereplication 26
- AutoReplication 27
- Keymanagement 28
- Passwordprotection 28
- UnderstandingVTLZoning 29
- WWPNzoning(softzoning) 30
- Portzoning(hardzoning) 31
- ACSLS server 32
- UsingtheVTLconsole 33
- Populatingtheconsole 34
- Populating the console 35
- ■ “SANClients”onpage 25 36
- ■ “Reports”onpa ge 25 36
- VirtualTapeLibrarySystem 38
- SANClients 39
- PhysicalResources 40
- VTLoperations 41
- Managing network connectivity 44
- Managingvirtuallibraries 47
- Managing virtual libraries 48
- C below). 53
- D above). 54
- E above) 54
- C above) 66
- D above) 66
- E above) 68
- F below) 68
- G below) 68
- Creatingvirtualtapes 70
- A below). 71
- A below).PressNext (B) 72
- K above) 78
- B above) 78
- B below) 79
- $ACSSS_HOME: 85
- /export/home/ACSSS 85
- 202700a0b811158a 85
- 210000e08b8 a0bc2 85
- A below) 91
- ProtectingVTLmetadata 93
- Mirroringthe VTL database 94
- F below),andpressNext(G) 95
- H below) 96
- Managingadministrators 97
- Managingtapes 100
- Abelow) 101
- B below),Add(C) 101
- Managing tapes 102
- O below) 104
- P below).PressNext(R) 104
- Stophere. 106
- N below).PressNext(P) 109
- N below) 109
- Y below) 112
- Copyingtapes 118
- K below),andpressNext(L) 121
- M below) 121
- Managingtapecaching 134
- Disablinga policy 135
- Relinkingphys icaltapes 135
- Managing tape caching 136
- Creatingandviewingreports 137
- Creating and viewing reports 138
- H below),andpressNext(J) 139
- K below) 139
- Viewingareport 140
- Encryptingandshreddingdata 141
- Creatinga key 142
- Encrypting and shredding data 143
- Deletinga key 144
- Exportinga key 145
- Importinga key 146
- Shreddinga virtualtape 147
- WorkingwiththeEventLog 149
- Viewinganeventlog 150
- Sortinganeventlog 150
- Working with the Event Log 151
- Dabove) 152
- E below) 152
- ManagingVTLservers 154
- Managing VTL servers 155
- InstallingtheVTLconsole 157
- Failback 161
- [VTL_Plus]vtladmin# uname -a 164
- VTL_Plus]vtladmin# sms 167
- Resumingbackupsfollowinga 171
- Configuring email alerts 173
- J) when ready 175
- Customizing email fields 176
- UpdatingVTLsoftware 179
- “update-vtxxxxxxsolarisnn” 181
- “Description_of_patch“ 181
- K)havebeenupdat ed 182
- VTLcommandlinereference 183
- Commonarguments 184
- LogintotheVTLServer 185
- Virtualdevices/Clients 186
- Description: 187
- Addclient 188
- Deleteclient 188
- Getclientproperties 189
- Assignvirtualdevice 189
- Unassignvirtualdevice 190
- Createvirtualdevice 191
- Deletevirtualdevice 191
- Getsupportedvirtualdrives 193
- Createvirtualtapelibrary 193
- Addvirtualtapedrive 195
- Createstandalone tapedrive 196
- Createvirtualtape 197
- Movevirtualtape 198
- Tapecopy 200
- Settapeduplication 200
- Settapeproperties 201
- Automatedtapecaching 203
- Syncphysicaltapes 205
- Migratevirtualtapes 206
- Reclaimdiskspace 207
- Renewcache 207
- Systemconfiguration 208
- Removealicensekeycode 209
- GetVTLinfo 209
- Import/Export 210
- Exportvirtualtape 211
- Getimport/exportjobstatus 212
- Resumeimport/exportjobs 213
- Deleteimport/exportjobs 214
- Suspendimport/exportjobs 214
- Cancelimport/exportjobs 214
- Replication 215
- Promoteareplica 217
- Removereplication 217
- Suspendreplication 218
- Resumereplication 219
- Setreplicationproperties 219
- Getreplicationproperties 220
- Getreplicationstatus 221
- Startreplication 221
- Physicaldevices 222
- Getphysicaltapelist 223
- Movephysicaltape 223
- Ejectphysicaltape 224
- Rescanphysicaldevices 227
- Importdisk 227
- Serverthroughputreport 229
- Devicethroughputreport 231
- Diskusagereport 232
- Replicationstatusreport 234
- Createjobreport 237
- EventLog 238
- Technicalsupport 239
- Requiredports 241
- Troubleshooting 243
- # ipstor status 244
- Case: Lowhostsystemmemory 245
- Case: Highserveractivity 246
- Takingan X‐Ray 254
- SNMPtraps 257
- Trap Severity Message 258
- ILOMcommandreference 289
- Alert Commands 290
- SNMP Commands 290
- Description Command 290
- Host System Commands 291
- Clock Settings 291
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