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Chapter 7: Technology Background
285
Example
Following is an example to explain the Transition function.
In the example above, there is a four-drive RAID 5 disk array and a global spare
drive. Physical drives 1, 2, 3, and 4 belong to the disk array. Physical drive 5
remains unconfigured. Physical drive 6 is a revertible spare drive.
If a physical drive fails in a disk array and there is a spare drive of adequate
capacity available, the controller automatically rebuilds the array using the spare
1
2
3
4
5
6
Spare
Drive
Array
Drives
1
2
3
4
5
6
Rebuild
to Spare
Failed
Drive
- E830f, E630f, E330f 1
- Copyright 2
- Recommendations 2
- VTrak E-Class Product Manual 10
- Contents 11
- Chapter 1: Introduction 23
- VTrak Overview 24
- Architectural Description 25
- Features 28
- Maximum LUNs Supported 29
- Advanced Storage Features 29
- Background Activities 29
- PerfectRAID Features 29
- System Management 30
- General Specifications 31
- Dimensions 32
- Safety and Environmental 33
- Warranty and Support 34
- Chapter 2: Installation 35
- Mounting VTrak in a Rack 36
- Attaching the Sliding Plates 39
- Installing Physical Drives 41
- Installing Your Drives 42
- Fibre Channel SAN 45
- Data Path 46
- Management Path 46
- Fibre Channel DAS 47
- Host PC or Server 48
- Network Switch 48
- SAS IN SAS OUT 49
- JBOD Expansion 50
- Chapter 3: Setup 55
- Drive Status Indicators 57
- VTrak Default IP Addresses 59
- Setting up VTrak with the CLI 59
- Setting up VTrak with the CLU 61
- Setting system date and time 62
- Logging into WebPAM PROe 64
- Automatic 67
- Advanced 69
- Logging out of WebPAM PROe 71
- Secure Connection 74
- Choosing the Display Language 75
- 4. Click the Login button 76
- Perusing the Interface 77
- Viewing the Storage Network 80
- Managing Subsystems 81
- Making Subsystem Settings 82
- Saving a Service Report 85
- Managing RAID Controllers 91
- Viewing Controller Statistics 93
- Locating a Controller 94
- Managing Enclosures 98
- Viewing Enclosure Information 99
- Viewing FRU VPD Information 100
- Viewing Power Supply Status 100
- Viewing Fan Status 100
- Viewing Voltage Sensor Status 101
- Managing UPS Units 102
- Making UPS Settings 103
- Viewing UPS Information 104
- Managing Users 105
- Making User Settings 107
- Making LDAP Settings 108
- Changing User Passwords 109
- Deleting a User 110
- Importing a User Database 110
- Exporting a User Database 111
- Media Patrol 116
- Redundancy Check 116
- Initialization 117
- Migration 118
- Making Migration Settings 119
- Making PDM Settings 119
- Transition 120
- Synchronization 120
- Battery Reconditioning 121
- Spare Check 121
- Managing Storage Services 122
- SLP Service 123
- Webserver Service 124
- Telnet Service 125
- SSH Service 126
- SNMP Service 127
- Restarting SNMP Service 128
- Making SNMP Settings 128
- Adding an SNMP Trap Sink 128
- CIM Service 129
- Netsend Service 130
- Starting Netsend Service 131
- Stopping Netsend 131
- Restarting Netsend Service 131
- Making Netsend Settings 131
- Monitoring Performance 133
- Monitoring PSU Wattage 134
- Managing Physical Drives 136
- Locating a Physical Drive 141
- Managing Disk Arrays 143
- Wizard: Express Configuration 146
- Deleting a Disk Array 149
- Making Disk Array Settings 150
- Locating a Disk Array 150
- Running PDM on a Disk Array 151
- Rebuilding a Disk Array 152
- Performing a Manual Rebuild 153
- Managing Logical Drives 154
- Deleting a Logical Drive 158
- Making Logical Drive Settings 158
- Locating a Logical Drive 159
- Initializing a Logical Drive 159
- Migrating a Logical Drive 161
- Managing Spare Drives 163
- Deleting a Spare Drive 165
- Making Spare Drive Settings 165
- Locating a Spare Drive 165
- Running Spare Check 166
- Managing LUNs and Initiators 168
- Editing a LUN Map 169
- Deleting a LUN Map 169
- Viewing a List of Initiators 170
- Viewing FC Node Information 171
- Viewing FC Port Information 171
- Making FC Port Settings 172
- Viewing FC Port Statistics 173
- Viewing a List of FC SFPs 173
- Adding an FC Initiator 174
- Deleting an FC Initiator 174
- Managing SAS Connections 175
- Adding a SAS Initiator 176
- Deleting a SAS Initiator 176
- Initial Connection 178
- Making a Telnet Connection 179
- Making a SSH Connection 179
- Logging Into the CLI 180
- Accessing Online Help 181
- Exiting the CLU 181
- Logging Out of the CLI 182
- Running Quick Setup 183
- Managing the Subsystem 184
- Setting the Lock 185
- Resetting the Lock 185
- Releasing the Lock 185
- Making NTP Settings 186
- Managing the Controllers 188
- Making Controller Settings 189
- Locating the Controller 190
- Managing the Enclosure 192
- Making Enclosure Settings 193
- Locating a Power Supply 194
- Viewing Cooling Unit Status 194
- Viewing Battery Information 195
- Reconditioning a Battery 196
- Locating an Enclosure 196
- Viewing Enclosure Topology 196
- Clearing Statistics 199
- Setting an Alias 200
- Disk Array Operational Status 207
- Accepting an Incomplete Array 208
- Disk Array 208
- Migrating a Disk Array 209
- Running PDM 210
- Creating a Logical Drive 212
- Running Redundancy Check 220
- Making Automatic Settings 222
- Making Manual Settings 222
- Viewing Node Information 224
- Viewing SFP Information 225
- Property Definitions 226
- Viewing SAS Port Statistics 229
- Viewing SAS Initiators 229
- Managing Background Activity 230
- Working with the Event Viewer 232
- Clearing NVRAM Events 233
- Working with LUN Mapping 234
- Mapping a LUN to an Initiator 235
- Deleting an Initiator 235
- Changing Your Own Password 241
- Making Email Settings 243
- Making SLP Settings 244
- Making Webserver Settings 244
- Making Telnet Settings 245
- Making SSH Settings 245
- Managing SNMP Trap Sinks 246
- Making CIM Settings 247
- Managing Netsend Recipients 249
- Deleting Netsend Recipients 250
- Flashing through TFTP 251
- Restoring Factory Defaults 254
- Shutting Down the Subsystem 255
- Starting Up After Shutdown 257
- Restarting the Subsystem 259
- Making Buzzer Settings 261
- Chapter 6: Maintenance 263
- Automatic Restart 264
- Manual Restart 264
- Updating with the CLU 266
- Updating with USB Support 268
- Failed Update 269
- WebPAM PROe 270
- Restarting a Subsystem 271
- Replacing a Power Supply 272
- Removing the Old Power Supply 273
- Installing a New Power Supply 273
- E830f and E630f 274
- Removing the Old Controller 276
- Installing the New Controller 277
- Disk Arrays 281
- Power Management 282
- Logical Drives 283
- RAID 1 – Mirror 285
- RAID 1E – Enhanced Mirror 287
- RAID 10 – Mirror + Stripe 290
- RAID 50 Axles 292
- • Transaction processing 294
- RAID 60 Axles 295
- RAID Level Migration 297
- Stripe Size 303
- Sector Size 303
- Preferred Controller ID 303
- Partition and Format 304
- Spare Drives 305
- Automatic Transition 309
- Manual Transition 309
- RAID Controllers 311
- Forced Read-Ahead Cache 312
- Adaptive Writeback Cache 312
- Power Saving 313
- Capacity Coercion 313
- Chapter 8: Troubleshooting 315
- Silencing the Buzzer 316
- LEDs Display Amber or Red 317
- Drive Carrier LEDs 318
- Back Panel LEDs 319
- CLU Reports a Problem 322
- Checking a Reported Component 323
- WebPAM PROe Reports a Problem 325
- •Storage Tab 327
- • Disk Arrays 327
- • Logical Drives 327
- USB Support Reports a Problem 329
- Enclosure Problems 330
- Overheating 332
- Power Supplies 332
- Batteries 333
- Controller Problems 334
- Serial Connection 335
- Telnet Connection 336
- Physical Drive Problems 338
- Incomplete Array 342
- Connection Problems 344
- Network Connections 345
- Fibre Channel Connections 345
- SAS Connections 346
- Power Cycling the Subsystem 348
- Event Notification Response 349
- Chapter 9: Support 367
- Logging In 369
- Connection 370
- Timeouts 370
- Email Messages 370
- User Management 371
- Disk Array Degraded 371
- Media Patrol and PDM 372
- Contacting Technical Support 373
- Attn: Technical Support 375
- Limited Warranty 376
- Your Responsibilities 377
- SNMP MIB Files 381
- Before You Begin 385
- Installing PerfectPath 386
- Verifying Installation 387
- Running Perfect Path View 389
- Viewing LUN Properties 390
- Viewing Path Properties 391
- Viewing Events 395
- Clearing Path Statistics 395
- Features and Settings 396
- Load Balance Policy 397
- Path Verification 398
- PDO Removal 399
- Performance Tab Refresh Rate 400
- Round Robin Count 400
- Refreshing the Objects 401
- Viewing System Information 401
- Saving System Information 402
- Troubleshooting 403
- Updating PerfectPath 404
- Repairing PerfectPath 405
- Removing PerfectPath 406
- Check Initial Setup 408
- Installing Packages 409
- Verifying Packages – RedHat 410
- Verifying Packages – SuSE 410
- RedHat Systems 412
- SuSE Systems 412
- Editing a Configuration File 412
- Setting the Daemon to Run 414
- Task 5: Setting-up ALUA 417
- RedHat Linux RHEL 5.5 418
- SuSE Linux SLES 10 SP3 419
- SuSE Linux SLES 11 420
- SuSE Linux SLES 11 SP1 421
- Linux MPIO: Known Issues 424
- Sample multipath.conf File 425
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