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96 Configuration: Disk Groups and Virtual Disks
A disk group must be organized according to its related tasks and subtasks.
For example, if you create a disk group for the Accounting Department, you
can create virtual disks that match the different types of accounting
transactions performed in the department: Accounts Receivable (AR),
Accounts Payable (AP), internal billing, and so forth. In this scenario, the AR
and AP virtual disks probably need more capacity than the internal billing
virtual disk.
NOTE: In Linux, the host must be rebooted after deleting virtual disks to reset the
/dev entries.
NOTE: Before you can use a virtual disk, you must register the disk with the host
systems. See "Host-to-Virtual Disk Mapping" on page 119.
Creating Disk Groups
You can create disk groups using either Automatic configuration or Manual
configuration.
To create disk groups using automatic configuration:
1
To start the Create Disk Group Wizard, perform one of these actions:
• To create a disk group from unconfigured capacity in the storage
array—On the
Logical
tab, select an
Unconfigured Capacity
node,
and select
Disk Group
Create
. Alternatively, you can right-click the
Unconfigured Capacity
node, and select
Create Disk Group
from the
pop-up menu.
• To create a disk group from unassigned physical disks in the storage
array—On the
Physical
tab, select one or more unassigned physical
disks of the same physical disk type, and select
Disk Group
Create
.
Alternatively, you can right-click the unassigned physical disks, and
select
Create Disk Group
from the pop-up menu.
• To create a secure disk group—On the
Physical
tab, select one or more
unassigned security capable physical disks of the same physical disk
type, and select
Disk Group
Create
. Alternatively, you can right-
click the unassigned security capable physical disks, and select
Create
Disk Group
from the pop-up menu.
The I
ntroduction (Create Disk Group)
window is displayed.
2
Click
Next
.
The
Disk Group Name and Physical Disk Selection
window is displayed.
book.book Page 96 Tuesday, June 18, 2013 2:53 PM
- Owner’s Manual 1
- Notes, Cautions, and Warnings 2
- Contents 3
- 4 Contents 4
- 6 Configuration: About Your 6
- Virtual Disks 7
- 8 Contents 8
- 10 Contents 10
- 12 Contents 12
- Array Software 14
- 16 Contents 16
- Contents 17 17
- Contacting Dell 17
- 18 Contents 18
- Introduction 19
- Series Storage Array 20
- Introduction 21 21
- 22 Introduction 22
- Overview 23
- Hardware Features 24
- Hard-Drive Indicator Patterns 28
- RAID Controller Modules 31
- Battery Backup Unit 34
- System Password Reset 35
- Cache Functions and Features 36
- Array Terms and Concepts 37
- Physical Disks 38
- Physical Disk States 38
- Virtual Disks and Disk Groups 39
- RAID Levels 40
- RAID Level Usage 41
- Segment Size 43
- Virtual Disk Operations 43
- Consistency Check 44
- Media Verification 44
- Cycle Time 44
- Disk Group Operations 45
- Disk Group Defragmentation 47
- Disk Group Operations Limit 47
- Disk Migration 48
- Advanced Features 50
- Host Types 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 69
- Setting a Password 71
- Password Guidelines 72
- Removing Storage Arrays 73
- Enabling Premium Features 74
- Failover Alert Display 74
- Configuring E-mail Alerts 77
- Configuring SNMP Alerts 79
- Battery Settings 81
- Configuration: Event Monitor 83
- Configuring Host Access 85
- Using the Mappings Tab 86
- Removing Host Access 88
- Managing Host Groups 88
- Adding a Host to a Host Group 89
- Removing a Host Group 90
- Host Topology 90
- I/O Data Path Protection 92
- Creating Disk Groups 96
- Locating a Disk Group 98
- Creating Virtual Disks 98
- Changing the I/O Type 104
- 512 KB) 105
- Creating a Security Key 108
- Changing a Security Key 110
- Saving a Security Key 111
- Validate Security Key 112
- Erasing Secure Physical Disks 113
- Hot Spares and Rebuild 115
- Global Hot Spares 116
- Hot Spare Operation 116
- Hot Spare Drive Protection 116
- Enclosure Loss Protection 117
- Host-to-Virtual Disk Mapping 119
- Restricted Mappings 126
- Disk Group 127
- Storage Partitioning 130
- Disk Group Expansion 131
- Virtual Disk Expansion 132
- Using Free Capacity 132
- Disk Group Migration 133
- Import Disk Group 134
- Non-Importable Components 135
- Storage Array Media Scan 136
- Suspending the Media Scan 137
- Snapshot Virtual Disks 139
- Simple Path 142
- About the Simple Path 143
- Advanced Path 146
- Snapshot Repository Capacity 152
- Capacity option is disabled 153
- PowerVault Modular 155
- Snapshot Rollback 157
- Starting a Snapshot Rollback 159
- Resuming a Snapshot Rollback 160
- Canceling a Snapshot Rollback 161
- Virtual Disk Copy 163
- Types of Virtual Disk Copies 164
- Online Copy 165
- Creating a Virtual Disk Copy 168
- Create Copy Wizard 169
- Failed Virtual Disk Copy 169
- Failed RAID Controller Module 170
- Copy Manager 170
- Copying the Virtual Disk 171
- Setting Copy Priority 173
- Stopping a Virtual Disk Copy 173
- Recopying a Virtual Disk 174
- Re-Copying a Virtual Disk 175
- Removing Copy Pairs 176
- Configuration: Device Mapper 179
- Multipath for Linux 179
- Using DM Multipathing Devices 180
- Ready for Use 184
- Limitations and Known Issues 187
- Troubleshooting 188
- Packages 189
- Firmware 190
- EMM Firmware 197
- Technology (SMART) 198
- Management: Installing Array 201
- Components 201
- Front Bezel (Optional) 202
- Hard Drives 203
- Installing a Hard-Drive Blank 204
- Removing a Hard Drive 204
- Installing a Hard Drive 206
- RAID Controller Module 209
- Control Panel 218
- 1 control panel 2 release tab 219
- Installing the Control Panel 220
- Backplane 221
- Installing the Backplane 224
- Management: System Interfaces 227
- Storage Array Support Data 232
- Event Log 234
- Recovery Guru 235
- Storage Array Profile 236
- Finding Nodes 239
- Using Go To 240
- Condition 241
- Locating a Physical Disk 244
- SMrepassist Utility 247
- Unidentified Devices 248
- Software 251
- Troubleshooting: Your Array 253
- Management Modules 255
- Troubleshooting Hard Drives 258
- Connections 259
- Conditions 261
- Invalid Storage Array 262
- ECC Errors 262
- PCI Errors 262
- Critical Conditions 262
- Noncritical Conditions 263
- Getting Help 265
- Documentation Feedback 266
- Index 267 267
- Index 268 268
- Index 269 269
- Index 270 270
- Index 271 271
- Index 272 272
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