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188 Configuration: Premium Feature—Virtual Disk Copy
9
Ty p e
yes
and click
Finish
.
NOTE: Operation in Progress icons are displayed on the source virtual disk and the
target virtual disk while the virtual disk copy has a status of In Progress or Pending.
For more information, see the PowerVault Modular Disk Storage Manager
online help topics.
Storage Array Performance During Virtual Disk
Copy
The following factors contribute to the overall performance of the storage
array:
• I/O activity
•Virtual disk RAID level
• Virtual disk configuration—Number of drives in the virtual disk groups
• Virtual disk type—Snapshot virtual disks may take more time to copy than
standard virtual disks
During a virtual disk copy, resources for the storage array are diverted from
processing I/O activity to completing a virtual disk copy. This affects the
overall performance of the storage array. When you create a new virtual disk
copy, you define the copy priority to determine how much controller
processing time is diverted from I/O activity to a virtual disk copy operation.
Setting Copy Priority
You can use the Copy Manager to select the rate at which a virtual disk copy
completes for a selected copy pair. You can change the copy priority for a copy
pair at any of these times:
• Before the virtual disk copy begins
• While the virtual disk copy has a status of In Progress
• When you re-create a virtual disk copy
To set copy priority:
1
In the AMW, select
Virtual Disk
Copy Manager
.
The
Copy Manager
window is displayed.
book.book Page 188 Tuesday, June 18, 2013 3:09 PM
- Owner’s Manual 1
- Notes, Cautions, and Warnings 2
- Contents 3
- 4 Contents 4
- 6 Configuration: About Your 6
- 8 Contents 8
- 10 Contents 10
- 12 Contents 12
- 16 Management: Installing 14
- 16 Contents 16
- 18 Contents 18
- Introduction 19
- Series Storage Array 20
- 22 Introduction 22
- Overview 23
- Hardware Features 24
- Hard-Drive Indicator Patterns 28
- RAID Controller Modules 31
- Battery Backup Unit 34
- Cache Functions and Features 35
- Write-Through Cache 36
- Array Terms and Concepts 37
- Physical Disks 38
- Physical Disk States 38
- Virtual Disks and Disk Groups 39
- Virtual Disk States 40
- RAID Levels 41
- Segment Size 43
- Virtual Disk Operations 43
- Consistency Check 44
- Media Verification 44
- Cycle Time 44
- Disk Group Operations 45
- Segment Size Migration 46
- Disk Group Defragmentation 47
- Disk Group Operations Limit 47
- Disk Migration 48
- Disk Roaming 50
- Advanced Features 51
- Virtual Disk Recovery 53
- Multi-Path Software 54
- Virtual Disk Ownership 55
- Load Balancing 56
- Configuration: Overview 61
- Enterprise Management Window 62
- Array Management Window 63
- Configuration: Overview 65 65
- 66 Configuration: Overview 66
- Out-of-Band Management 67
- Storage Arrays 68
- Setting Up Your Storage Array 70
- Locating Storage Arrays 72
- Setting a Password 73
- Password Guidelines 74
- Removing Storage Arrays 76
- Enabling Premium Features 76
- Displaying Failover Alert 77
- Configuring E-mail Alerts 79
- Configuring SNMP Alerts 82
- Battery Settings 83
- Configuration: Using iSCSI 87
- Creating CHAP Secrets 88
- Initiator CHAP Secret 89
- Target CHAP Secret 89
- Statistics 95
- Configuration: Event Monitor 97
- Configuring Host Access 99
- Using the Mappings Tab 100
- Defining a Host 101
- Removing Host Access 102
- Managing Host Groups 103
- Removing a Host Group 105
- Host Topology 105
- I/O Data Path Protection 107
- Virtual Disks 111
- Creating Disk Groups 112
- Locating a Disk Group 114
- Creating Virtual Disks 114
- Changing the I/O Type 120
- 512 KB) 121
- Creating a Security Key 124
- Changing a Security Key 126
- Saving a Security Key 128
- Validate Security Key 129
- Erasing Secure Physical Disks 130
- Hot Spares and Rebuild 132
- Global Hot Spares 132
- Hot Spare Operation 133
- Hot Spare Drive Protection 133
- Enclosure Loss Protection 134
- Host-to-Virtual Disk Mapping 135
- Restricted Mappings 143
- Disk Group 144
- Storage Partitioning 147
- Disk Group Expansion 148
- Virtual Disk Expansion 149
- Using Free Capacity 149
- Using Unconfigured Capacity 149
- Disk Group Migration 150
- Import Disk Group 151
- Storage Array Media Scan 152
- Changing Media Scan Settings 153
- Suspending the Media Scan 154
- Snapshot Virtual Disks 155
- Scheduled Snapshot Icons 158
- Simple Path 159
- Advanced Path 162
- Snapshot Repository Capacity 169
- PowerVault Modular 172
- Snapshot Rollback 174
- Command Line Options 175
- Starting a Snapshot Rollback 176
- Resuming a Snapshot Rollback 177
- Canceling a Snapshot Rollback 177
- Virtual Disk Copy 179
- Types of Virtual Disk Copies 180
- Online Copy 181
- Creating a Virtual Disk Copy 184
- Create Copy Wizard 185
- Failed Virtual Disk Copy 185
- Failed RAID Controller Module 186
- Copy Manager 186
- Copying the Virtual Disk 186
- Setting Copy Priority 188
- Stopping a Virtual Disk Copy 189
- Recopying a Virtual Disk 190
- Re-Copying the Virtual Disk 191
- Removing Copy Pairs 192
- Configuration: Device Mapper 197
- Multipath for Linux 197
- Using DM Multipathing Devices 198
- Window (EMW) 199
- Ready For Use 203
- Limitations and Known Issues 206
- Troubleshooting 207
- from DM 208
- Packages 209
- Firmware 210
- EMM Firmware 217
- Technology (SMART) 218
- Management: Installing Array 221
- Components 221
- Front Bezel (Optional) 222
- Hard Drives 223
- Installing a Hard-Drive Blank 224
- Removing a Hard Drive 224
- Installing a Hard Drive 226
- RAID Controller Module 229
- Control Panel 239
- Installing the Control Panel 240
- Backplane 241
- Installing the Backplane 244
- Management: System Interfaces 247
- Array Software 249
- Storage Array Support Data 253
- Retrieving Trace Buffers 254
- Collecting Physical Disk Data 256
- Event Log 257
- Recovery Guru 258
- Storage Array Profile 258
- Finding Nodes 261
- Using Go To 262
- Condition 263
- Locating a Physical Disk 266
- SMrepassist Utility 269
- Unidentified Devices 270
- Software 273
- Troubleshooting: Your Array 275
- Management Modules 277
- Troubleshooting Hard Drives 280
- Connections 281
- Conditions 283
- Invalid Storage Array 283
- ECC Errors 283
- PCI Errors 284
- Critical Conditions 284
- Noncritical Conditions 284
- Getting Help 285
- Documentation Feedback 286
- Index 285 287
- Index 286 288
- Index 287 289
- Index 288 290
- Index 289 291
- Index 290 292
- Index 291 293
- 292 Index 294
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