Dell PowerVault MD3600i Manuel d'utilisateur Page 50
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50 Planning: MD3600i Series Storage Array Terms and Concepts
• Migrating virtual disks to a storage array with no existing physical disks—
Turn off the destination storage array, when migrating disk groups or a
complete set of physical disks from a storage array to another storage array
that has no existing physical disks. After the destination storage array has
been turned on and has successfully recognized the newly migrated
physical disks, migration operations can continue.
NOTE: Disk groups from multiple storage arrays should not be migrated at the
same time to a storage array that has no existing physical disks. Use cold
virtual disk migration for the disk groups from one storage array.
• Enabling premium features before migration—Before migrating disk
groups and virtual disks, enable the required premium features on the
destination storage array. If a disk group is migrated from an MD3600i
storage array that has a premium feature enabled and the destination array
does not have this feature enabled, an
Out of Compliance
error message
can be generated.
Disk Roaming
You can move physical disks within an array. The RAID controller module
automatically recognizes the relocated physical disks and logically places
them in the proper virtual disks that are part of the disk group. Disk roaming
is permitted when the RAID controller module is either online or powered
off.
NOTE: The disk group must be exported before moving the physical disks.
Host Server-to-Virtual Disk Mapping
The host server attached to a storage array accesses various virtual disks on the
storage array through its host ports. Specific virtual disk-to-LUN mappings to an
individual host server can be defined. In addition, the host server can be part of a
host group that shares access to one or more virtual disks. You can manually
configure a host server-to-virtual disk mapping. When you configure host server-
to-virtual disk mapping, consider these guidelines:
• You can define one host server-to-virtual disk mapping for each virtual disk in
the storage array.
• Host server-to-virtual disk mappings are shared between RAID controller
modules in the storage array.
book.book Page 50 Thursday, December 9, 2010 3:20 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 13
- 14 Contents 14
- 19 Troubleshooting: Your 15
- 16 Contents 16
- Contents 17 17
- 18 Contents 18
- Introduction 19
- Series Storage Array 20
- 22 Introduction 22
- Overview 23
- Hardware Features 24
- Hard-Drive Indicator Patterns 28
- Power Indicator Codes 30
- 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
- Multi-Path Software 54
- Virtual Disk Ownership 55
- Load Balancing 56
- Configuration: Overview 61
- Enterprise Management Window 62
- Array Management Window 63
- Out-of-Band Management 65
- Storage Arrays 66
- Setting Up Your Storage Array 68
- Locating Storage Arrays 70
- Setting a Password 71
- Password Guidelines 72
- Removing Storage Arrays 74
- Enabling Premium Features 74
- Displaying Failover Alert 75
- Configuring E-mail Alerts 77
- Configuring SNMP Alerts 80
- Battery Settings 81
- Configuration: Using iSCSI 83
- Creating CHAP Secrets 84
- Initiator CHAP Secret 85
- Target CHAP Secret 85
- Statistics 91
- Configuration: Event Monitor 93
- Configuring Host Access 95
- Using the Mappings Tab 96
- Defining a Host 97
- Removing Host Access 98
- Managing Host Groups 99
- Removing a Host Group 101
- Host Topology 101
- I/O Data Path Protection 103
- Virtual Disks 107
- Creating Disk Groups 108
- Locating a Disk Group 110
- Creating Virtual Disks 110
- Changing the I/O Type 116
- 512 KB) 117
- Creating a Security Key 120
- Changing a Security Key 122
- Saving a Security Key 124
- Validate Security Key 125
- Erasing Secure Physical Disks 126
- Hot Spares and Rebuild 128
- Global Hot Spares 128
- Hot Spare Operation 129
- Hot Spare Drive Protection 129
- Enclosure Loss Protection 130
- Host-to-Virtual Disk Mapping 131
- Restricted Mappings 137
- Disk Group 139
- Storage Partitioning 141
- Disk Group Expansion 143
- Virtual Disk Expansion 144
- Using Free Capacity 144
- Using Unconfigured Capacity 144
- Disk Group Migration 145
- Import Disk Group 146
- Storage Array Media Scan 147
- Changing Media Scan Settings 148
- Suspending the Media Scan 149
- Snapshot Virtual Disks 151
- Simple Path 153
- Advanced Path 156
- Snapshot Repository Capacity 163
- PowerVault Modular 166
- Virtual Disk Copy 169
- Creating a Virtual Disk Copy 172
- Before you Begin 173
- Create Copy Wizard 174
- Failed Virtual Disk Copy 174
- Failed RAID Controller Module 175
- Copy Manager 175
- Copying the Virtual Disk 175
- Setting Copy Priority 177
- Stopping a Virtual Disk Copy 178
- Recopying a Virtual Disk 179
- Recopying the Virtual Disk 180
- Removing Copy Pairs 181
- Configuration: Device Mapper 185
- Multipath for Linux 185
- Using DM Multipathing Devices 186
- Window (EMW) 187
- Ready For Use 191
- Limitations and Known Issues 193
- Troubleshooting 194
- from DM 195
- Packages 197
- Firmware 198
- EMM Firmware 205
- Technology (SMART) 206
- Management: Installing Array 209
- Components 209
- Front Bezel (Optional) 210
- Hard Drives 211
- Installing a Drive Blank 212
- Removing a Hard Drive 212
- Installing a Hard Drive 214
- RAID Controller Module 217
- Control Panel 227
- Installing the Control Panel 228
- Backplane 229
- Installing the Backplane 232
- Management: System Interfaces 235
- Array Software 237
- Storage Array Support Data 241
- Retrieving Trace Buffers 242
- Collecting Physical Disk Data 244
- Event Log 245
- Recovery Guru 246
- Storage Array Profile 246
- Finding Nodes 249
- Using Go To 250
- Condition 251
- Locating a Physical Disk 254
- SMrepassist Utility 257
- Unidentified Devices 258
- Software 261
- Troubleshooting: Your Array 263
- Management Modules 265
- Troubleshooting Hard Drives 268
- Connections 269
- Conditions 271
- Invalid Storage Array 271
- ECC Errors 271
- PCI Errors 272
- Critical Conditions 272
- Noncritical Conditions 272
- Getting Help 273
- 274 Getting Help 274
- Index 275 275
- Index 276 276
- Index 277 277
- Index 278 278
- Index 279 279
- Index 280 280
- Index 281 281
- 282 Index 282
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