Hp LeftHand P4000 SAN Solutions User Manual Page 175
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1. Log in to the management group that contains the volume that you want to roll back.
2. In the navigation window, select the snapshot to which you want to roll back.
Review the snapshot Details tab to ensure you have selected the correct snapshot.
3. Click Snapshot Tasks on the Details tab, and select Roll Back Volume.
A warning message opens that illustrates the possible consequences of performing a rollback,
including
• Existing iSCSI sessions present a risk of data inconsistencies.
• All newer snapshots will be deleted.
• Changes to the original volume since the snapshot was created will be lost.
If you do not have connected iSCSI sessions or newer snapshots, those issues will not be
reflected in the message.
If the snapshot is part of a snapshot setIf the snapshot is
not
part of a
snapshot set
You have the following possible choices for continuing from this message
window:
You have three choices for
continuing from this message
window:
• Click Roll Back ALL Associated Volumes. This is recommended. See “Roll
back all associated volumes” (page 176).• Click OK. See “Continue with
standard roll back”
(page 175).
• Click Roll Back Selected Volume Only. See “Continue with standard roll
back” (page 175).
NOTE: This will only the roll back the volume of the selected snapshot.
Click OK. This is not recommended.
• Click New SmartClone
Volume. See “Create a new
SmartClone volume from the
snapshot” (page 175).
• Click Roll Back Volume. See “Continue with standard roll back” (page 175).
NOTE: This will leave some snapshot sets incomplete. This is not
recommended.
• Click Cancel. See “Cancel the
rollback operation”
(page 176).
• Click Cancel. See “Cancel the rollback operation” (page 176).
Continue with standard roll back
The following steps result with the original volume, with its original name, returned to the state of
the rolled back snapshot. If the snapshot is part of a snapshot set, this is not recommended.
The volume rolls back to the snapshot, deleting any newer snapshots. The rolled back snapshot
remains intact underneath the volume and retains the data. Any data that had been added to the
volume since the snapshot was created is deleted.
1. If you rolled back an application-managed snapshot, use diskpart.exe to change the
resulting volume's attributes.
For more information, see “Making a Windows application-managed snapshot available”
(page 171).
2. Reconnect iSCSI sessions to the volume, and restart the applications.
Create a new SmartClone volume from the snapshot
Instead of continuing with a standard roll back, you can create a new SmartClone volume, with
a new name, from the selected snapshot. This choice preserves any newer snapshots and any new
data in the original volume.
1. Click New SmartClone Volume.
2. Enter a name, and configure the additional settings.
For more information about characteristics of SmartClone volumes, see “Defining SmartClone
volume characteristics” (page 183).
Rolling back a volume to a snapshot or clone point 175
- Abstract 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- 1 Getting started 7
- Configuring storage systems 8
- Volumes wizard 8
- 1. Management group 9
- 2. Cluster 9
- 3. Volume 9
- Using the Map View 10
- Setting preferences 11
- Troubleshooting 12
- Storage system tasks 15
- Rebooting the storage system 17
- Checking boot device status 19
- Getting there 21
- Configuring and managing RAID 21
- RAID devices by RAID type 22
- Data protection 23
- Setting RAID rebuild rate 25
- Reconfiguring RAID 26
- Monitoring RAID status 27
- Managing disks 28
- SSD drives and wear life 30
- Verifying disk status 31
- Managing disks 33 33
- Managing disks 35 35
- Managing disks 37 37
- Managing disks 39 39
- Adding disks to RAID 40
- Replacing a disk 41
- Replace the disk 44
- RAID rebuilding 44
- 4 Managing the network 46
- Requirements 47
- TCP status tab 47
- Best practice 48
- Changing NIC frame size 49
- Changing NIC flow control 50
- The TCP/IP tab 51
- Using DHCP 52
- Best practices 53
- Supported bonds with 10 GbE 54
- IP address for NIC bonds 55
- Interface 57
- 1. Servers 61
- 3. Storage cluster 61
- Creating a NIC bond 63
- Creating the bond 64
- 1. Preferred interface 66
- 66 Managing the network 66
- Disabling a network interface 68
- Using a DNS server 69
- Setting up routing 70
- Deleting routing information 71
- Fibre Channel 73
- 5 Setting the date and time 74
- Editing NTP servers 75
- Deleting an NTP server 75
- Editing the date and time 76
- Editing the time zone only 76
- 6 Managing authentication 77
- Default administrative groups 78
- Editing administrative groups 79
- 82 Managing authentication 82
- 7 Monitoring the SAN 83
- 84 Monitoring the SAN 84
- Alarms and events overview 85
- 3. Filter panel 86
- 86 Monitoring the SAN 86
- Working with alarms 87
- Configuring events 88
- Working with events 89
- Viewing event details 90
- Configuring the email server 91
- Configuring SNMP 92
- Enabling SNMP agents 93
- Adding SNMP traps 94
- Editing trap recipients 95
- Removing trap recipients 95
- Sending a test trap 95
- Disabling SNMP traps 95
- Using the SNMP MIBs 96
- Running diagnostic reports 97
- Using log files 100
- Saving log files locally 101
- Editing remote log targets 101
- Exporting the System Summary 102
- Planning management groups 104
- Creating a management group 105
- Set DNS server 106
- Set up email for notification 106
- Set management group time 106
- Management group map view tab 107
- Configuration warnings 108
- Configuration errors 108
- Configuration guidance 109
- Disk level data protection 110
- Cluster-level data protection 110
- Starting additional managers 112
- Editing a management group 113
- Prerequisites 114
- Deleting a management group 116
- Managers overview 118
- Managers and quorum 119
- Failover Managers 120
- Virtual Managers 120
- Using the Failover Manager 121
- Using a virtual manager 126
- Adding a virtual manager 128
- 1. Virtual manager added 129
- Using a virtual manager 129 129
- Stopping a virtual manager 130
- Using a virtual manager 131 131
- 10 Working with clusters 132
- Creating a cluster 133
- Monitoring cluster usage 134
- Editing a cluster 134
- 136 Working with clusters 136
- Troubleshooting a cluster 137
- Repairing a storage system 138
- Deleting a cluster 140
- 11 Provisioning storage 141
- Thin provisioning 142
- Planning data protection 142
- 144 Provisioning storage 144
- Provisioning volumes 145 145
- 146 Provisioning storage 146
- Provisioning snapshots 147
- Ongoing capacity management 148
- Cluster use summary 149
- Volume use summary 150
- System Use summary 151
- 154 Provisioning storage 154
- 12 Using volumes 155
- Creating a volume 156
- Viewing the volume map 158
- Editing a volume 158
- Changing the volume size 159
- Migrating or moving a volume 160
- Deleting a volume 161
- 13 Using snapshots 162
- Planning snapshots 163
- Creating snapshots 164
- Editing a snapshot 165
- Scheduling snapshots 166
- Editing scheduled snapshots 168
- Scheduling snapshots 169 169
- Mounting a snapshot 170
- Mounting a snapshot 171 171
- 172 Using snapshots 172
- Delete the temporary space 173
- 174 Using snapshots 174
- Cancel the rollback operation 176
- Deleting a snapshot 177
- Troubleshooting snapshots 178
- 14 SmartClone volumes 180
- Planning SmartClone volumes 182
- Server access 183
- Naming SmartClone volumes 184
- 1. Source volume 186
- 2. Clone point 186
- 3. SmartClone volumes (5) 186
- 186 SmartClone volumes 186
- Clone point 187
- Shared snapshot 189
- Creating SmartClone volumes 190
- To create a SmartClone volume 190
- Viewing SmartClone volumes 192
- Using views 193
- 194 SmartClone volumes 194
- Editing SmartClone volumes 195
- Deleting SmartClone volumes 196
- 15 Working with scripting 198
- Required for VSS: 200
- Disk management 203
- Clustering server connections 205
- Creating a server cluster 206
- Editing a server cluster 207
- Deleting a server cluster 207
- Allows ThisType of Access 209
- 17 Monitoring performance 212
- Monitoring the SAN 213
- Monitoring volumes 214
- 216 Monitoring performance 216
- 2. Graph1. Toolbar 218
- 218 Monitoring performance 218
- Workloads 223
- Access type 223
- Access size 223
- Access pattern 223
- Queue depth 223
- Adding statistics 226
- Viewing statistic details 227
- Removing a statistic 227
- Changing the graph 228
- Exporting data 229
- 230 Monitoring performance 230
- Identifying licensing status 233
- Using license keys 234
- Entering license keys 237
- Purchasing an upgrade license 238
- Number of iSCSI sessions 241
- Authentication (CHAP) 242
- Example iSCSI configurations 243
- Using MPIO with Fibre Channel 246
- Troubleshooting Fibre Channel 246
- Deleting a NIC bond 249
- 21 Replacing hardware 251
- Repair the storage system 252
- Rebuilding data 253
- Reconfigure RAID 254
- Restarting a manager 254
- Rebuilding volume data 255
- Replacing the RAID controller 256
- Verifying component failure 257
- Removing the RAID controller 258
- 260 Replacing hardware 260
- Verifying proper operation 262
- 23 Third-party licenses 265
- Contacting HP 266
- Related information 266
- HP websites 267
- 25 Documentation feedback 268
- Glossary 269
- 270 Glossary 270
- 272 Glossary 272
- 274 Glossary 274
- 276 Index 276
- 278 Index 278
- 280 Index 280
- 282 Index 282
- 284 Index 284
- 286 Index 286
- 288 Index 288
- 290 Index 290
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