Canceling a Snapshot Rollback, 161 | Dell MD3220, MD3200 instruction

Canceling a Snapshot Rollback

WARNING: Risk of data loss: If you cancel a snapshot rollback in progress, the base virtual disk may remain in an unusable state and the snapshot virtual disk is displayed as failed in the MD storage management software. Therefore, do not cancel a snapshot rollback unless reliable recovery options exist for restoring the content of the base virtual disk.

1In the array management window, select the Logical tab.

2Choose one:

•Select the snapshot virtual disk, and select Virtual Disk→ Snapshot→ Cancel Rollback.

•Right-click the snapshot virtual disk and select Cancel Rollback. The Confirm Cancel Rollback dialog is displayed.

3To cancel the snapshot rollback, type yes in the confirmation box and click OK.

4Click Yes to cancel the rollback operation.

Configuration: Premium Feature—Snapshot Virtual Disks

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Dell MD3220, MD3200 owner manual Canceling a Snapshot Rollback, 161

Contents

Dell PowerVault MD3200 and MD3220 Storage Arrays Page Contents Cache Functions and Features RAID Controller Module Connectors Virtual Disk Operations Limit Out-of-Band and In-Band Management Configuring Alert Notifications Creating Disk Groups and Virtual Disks Enabling or Disabling the Event MonitorManaging Host Port Identifiers Host-to-Virtual Disk Mapping Configuring Hot Spare Physical DisksPhysical Disk Security with Self 129 126130 131 Creating a Snapshot Virtual Disk Using Creating a Snapshot Virtual Disk Using 142146 151 161 160Types of Virtual Disk Copies 164 165 174 Using DM Multipathing Devices 180176 179 201 Self-Monitoring Analysis and Reporting202 203 Power Supply/Cooling Fan Module 216 RAID Controller Module Backup Battery Unit 214218 221 232 Recovering From an Unresponsive Storage 241233 Collecting the Physical Disk Data 234 Troubleshooting Power Supply/Cooling 254 Safety First-For you and Your Array 253Troubleshooting Expansion Enclosure Troubleshooting a Damaged Array 261 Getting Help Contacting Dell Index Contents About This Document Introduction MD3200 Series Storage Array Dell PowerVault Modular Disk Storage ManagerOther Information you May Need Introduction Introduction Overview Planning About Your Storage Array Front-Panel Features and Indicators Hardware Features Planning About Your Storage Array Item Indicator, Button, or Icon Description Connector Back Panel Features and Indicators Hard Drive Indicators Hard-Drive Indicator Patterns Drive-Status Indicator Pattern Condition Power Supply and Cooling Fan Features Power Indicator Codes and Features RAID Controller Modules Planning RAID Controller Modules Function RAID Controller Module Connectors and Features Item Component Function Component Function RAID Controller Module-Additional FeaturesBattery Backup Unit Storage Array Thermal Shutdown System Password ResetShutdown Threshold Type Event Description Cache Mirroring Cache Functions and FeaturesWrite-Back Cache Write-Through Cache Physical Disks, Virtual Disks, and Disk Groups Planning MD3200 Series Storage Array Terms and Concepts Physical Disk States Physical Disks Virtual Disks and Disk Groups Self-Monitoring Analysis and Reporting Technology RAID Controller Virtual Disk States Description RAID LevelsVirtual Disk States RAID RAID Level Usage RAID Virtual Disk Operations Segment SizeVirtual Disk Initialization Background Initialization Cycle Time Consistency CheckMedia Verification Virtual Disk Operations Limit Disk Group OperationsRAID Level Migration Segment Size Migration Disk Group Expansion Virtual Disk Capacity Expansion Disk Group Operations Limit RAID Background Operations PriorityDisk Group Defragmentation Disk Migration Virtual Disk Migration and Disk Roaming Planning MD3200 Series Storage Array Terms and Concepts Disk Roaming Advanced Features Snapshot Virtual Disks Host Server-to-Virtual Disk MappingHost Types Snapshot Repository Virtual Disk Target Virtual Disk Virtual Disk CopySource Virtual Disk Multi-Path Software Virtual Disk RecoveryUsing Snapshot and Disk Copy Together Virtual Disk Ownership Preferred and Alternate Controllers and Paths Load Balancing AMW, select Storage Array→ Monitor Performance Monitoring MD3200 Series System Performance Click Settings Performance Monitor Table Description Column Headings Planning MD3200 Series Storage Array Terms and Concepts User Interface Configuration Overview Enterprise Management Window Array Management Window Inheriting the System Settings Configuration Overview Out-of-Band Management Configuration About Your Storage ArrayOut-of-Band and In-Band Management In-Band Management Storage ArraysAdding Storage Arrays Select Edit→ Add Storage Array Automatic Discovery of Storage ArraysManual Addition of a Storage Array Setting Up Your Storage Array AMW, select Storage Array→ Blink→ Storage Array Locating Storage Arrays Name/Rename Storage Arrays dialog is displayed AMW Setup tab, select Rename Storage ArrayNaming or Renaming Storage Arrays Type the New password Setting a PasswordPassword Viewing Storage Array Connections Password Guidelines Removing Storage Arrays Adding/Editing a Comment to an Existing Storage ArraySelect Edit→ Comment Select Edit→ Remove→ Storage Array Failover Alert Display Enabling Premium Features Changing the Enclosure Order in the Physical Pane Changing the Cache Settings on the Storage ArrayChanging Expansion Enclosure ID Number Select Configure Alerts Configuring Alert NotificationsAMW, select Storage Array→ Change→ Enclosure Order Select All storage arrays Configuring E-mail Alerts Configuration About Your Storage Array Configuring Snmp Alerts Configuration About Your Storage Array Battery Settings Setting the Storage Array RAID Controller Module Clocks Configuration Event Monitor Linux Enabling or Disabling the Event MonitorWindows Configuring Host Access Configuration About Your Host Select Mappings→ Define→ Host Using the Mappings TabDefining a Host Configuration About Your Host Managing Host Groups Removing Host AccessCreating a Host Group Select Mappings→ Remove Adding a Host to a Host Group Moving a Host to a Different Host GroupRemoving a Host From a Host Group Select Mappings→ Move Host Topology Removing a Host Group Windows Starting or Stopping the Host Context AgentLinux Click Action→ Start Data Path Protection Add Host Port Identifier dialog is displayed Managing Host Port Identifiers Configuration About Your Host Creating Disk Groups and Virtual Disks Configuration Disk Groups and Virtual Disks Introduction Create Disk Group window is displayed Creating Disk Groups Configuration Disk Groups and Virtual Disks Creating Virtual Disks Locating a Disk Group Configuration Disk Groups and Virtual Disks 100 Map later Using Mappings ViewChanging the Virtual Disk Modification Priority 101 Changing the Virtual Disk Cache Settings 102 103 Changing the Segment Size of a Virtual Disk 104 Changing the I/O TypeSelect Virtual Disk→ Change→ Segment Size 105 Choosing an Appropriate Physical Disk TypeFile system typical Database Multimedia Custom 106 Physical Disk Security with Self Encrypting Disk 107 Shows how to interpret the security status of a disk group 108 Creating a Security Key 109 Click Create Key 110 Changing a Security KeyConfirm Change Security Key window is displayed 111 Saving a Security KeyClick Change Key 112 Validate Security Key 113 Unlocking Secure Physical DisksErasing Secure Physical Disks 114 Configuring Hot Spare Physical DisksSelect Physical disk→ Hot Spare Coverage Hot Spare Physical Disk Options window is displayed Hot Spares and RebuildClick Unassign 115 Hot Spare Operation Global Hot SparesHot Spare Drive Protection 116 117 Enclosure Loss Protection Criteria for Enclosure Loss Protection RAID Level 118 119 Host-to-Virtual Disk MappingCreating Host-to-Virtual Disk Mappings 120 121 Modifying and Removing Host-to-Virtual Disk Mapping Removing Host-to-Virtual Disk Mapping Changing Controller Ownership of the Virtual DiskSelect Virtual Disk→ Change→ Ownership/Preferred Path 122 123 Select Disk Group→ Change→ Ownership/Preferred Path Changing the RAID Level of a Disk Group Removing a Host-to-Virtual Disk Mapping Using Linux DmmpSelect Disk Group→ Change→ RAID Level 124 125 Operating System Highest LUN Restricted Mappings126 127 128 129 Changing the RAID Level of a Disk Group 130 Storage Partitioning 131 Disk Group and Virtual Disk ExpansionSelect Disk Group→ Add Free Capacity Physical Disks 132 Using Free CapacityVirtual Disk Expansion Disk Group Migration Using Unconfigured CapacityExport Disk Group Non-Exportable Components Exporting a Disk Group Import Disk GroupImporting a Disk Group 134 135 Non-Importable Components 136 Changing Media Scan SettingsStorage Array Media Scan 137 Suspending the Media Scan 138 139 Configuration Premium Feature- Snapshot Virtual Disks 140 Scheduling a Snapshot Virtual DiskCommon Reasons for Scheduling a Snapshot Virtual Disk 141 Guidelines for Creating Snapshot Schedules Enabling and Disabling Snapshot Schedules Creating a Snapshot Virtual Disk Using the Simple PathScheduled Snapshot Icons 142 143 About the Simple Path 144 145 146 Creating a Snapshot Virtual Disk Using the Advanced PathAbout the Advanced Path 147 148 149 Creating the Snapshot Using the Advanced Path 150 Specify Virtual Disk Parameters window is displayed 151 Specifying Snapshot Virtual Disk Names 152 Snapshot Repository Capacity 153 154 Click Add Physical DisksAdd Physical Disks window closes 155 Disabling a Snapshot Virtual Disk 156 Preparing Host Servers to Re-create a Snapshot Virtual Disk Snapshot Rollback Re-creating Snapshot Virtual DisksSelect Virtual Disk→ Snapshot→ Re-create 157 158 Rules and Guidelines for Performing a Snapshot Rollback Protecting Against a Failed Snapshot Rollback Command Line OptionsPrevious Versions of the MD Storage Manager Starting a Snapshot Rollback Rollback Resuming a Snapshot RollbackConfirm Rollback Snapshot Virtual Disk dialog is displayed 160 161 Canceling a Snapshot Rollback 162 163 Configuration Premium Feature- Virtual Disk Copy 164 Types of Virtual Disk CopiesOffline Copy 165 Online Copy 166 Creating a Virtual Disk Copy for an Mscs Shared DiskVirtual Disk Read/Write Permissions 167 Virtual Disk Copy Restrictions 168 Creating a Virtual Disk CopyBefore you Begin Create Copy Wizard Virtual Disk Copy and Modification OperationsFailed Virtual Disk Copy 169 Failed RAID Controller Module Preferred RAID Controller Module OwnershipCopy Manager 170 171 Copying the Virtual Disk 172 Storage Array Performance During Virtual Disk Copy Stopping a Virtual Disk Copy Setting Copy PrioritySelect Change→ Copy Priority 173 174 Recopying a Virtual DiskPreparing Host Servers to Recopy a Virtual Disk 175 Re-Copying a Virtual Disk Select Copy→ Re-Copy Removing Copy PairsSelect Copy→ Remove Copy Pairs 176 177 178 179 Configuration Device Mapper Multipath for Linux 180 Using DM Multipathing DevicesPrerequisite Steps 181 Device Mapper Configuration StepsScan for Newly Added Virtual Disks 182 183 Create a New fdisk Partition on a Multipath Device NodeAdd a New Partition to Device Mapper Mount a Device Mapper Partition Create a File System on a Device Mapper PartitionReady for Use Blacklist Local Drive in Multi-path Driver 185 Important Information About Special Partitions 186 Device Mapper Commands Descriptions 187 Limitations and Known Issues Question Answer Troubleshooting188 189 Downloading RAID Controller and Nvsram Packages 190 Downloading Both RAID Controller and Nvsram Firmware 191 Click Transfer 192 Downloading Only Nvsram Firmware 193 Select Tools→ Upgrade RAID Controller Module FirmwareUpgrade RAID Controller Module Firmware window is displayed 194 195 Downloading Physical Disk Firmware 196 Downloading MD1200 Series Expansion Module EMM Firmware AMW, select Advanced→ Maintenance→ Download→ EMM FirmwareDownload Environmental EMM Firmware dialog is displayed 197 198 Media Errors and Unreadable SectorsSelf-Monitoring Analysis and Reporting Technology Smart 199 200 201 Management Installing Array ComponentsRecommended Tools Front Bezel Optional Installing the Front BezelRemoving the Front Bezel 202 Hard Drives Safety Models AMT, E03J, and E04JRemoving a Hard-Drive Blank 203 204 Installing a Hard-Drive BlankRemoving a Hard Drive 205 Removing and Installing a Hard Drive 206 Installing a Hard Drive 207 Removing a Hard Drive From a Hard-Drive Carrier 208 RAID Controller Module Installing a Hard Drive Into a Hard-Drive CarrierRemoving a RAID Controller Module Blank 209 210 Installing a RAID Controller Module Blank 211 Removing a RAID Controller Module 212 Installing a RAID Controller ModuleOpening the RAID Controller Module 213 Closing the RAID Controller Module 214 RAID Controller Module Backup Battery UnitRemoving the RAID Controller Module Backup Battery Unit 215 Installing the RAID Controller Module Backup Battery Unit 216 Power Supply/Cooling Fan ModuleRemoving a Power Supply/Cooling Fan Module 217 Installing a Power Supply/Cooling Fan Module 218 Control PanelRemoving the Control Panel 219 220 Installing the Control Panel 221 BackplaneRemoving the Backplane 222 17. Removing and Installing the Backplane-PowerVault MD3220 16. Removing and Installing the Backplane-PowerVault MD3200 224 Installing the Backplane 225 Management Firmware InventoryViewing the Firmware Inventory 226 Virtual Disk Service Microsoft ServicesVolume Shadow-Copy Service Management System Interfaces 228 Start-Up Routine Troubleshooting Your Storage Array SoftwareDevice Health Conditions 229 Status Icon Description On the Setup tab, select Manage a Storage Array230 Additional Status Icons Description 231 232 Storage Array Support Data 233 Automatically Collect the Support Bundle DataEnter the Execution summary 234 Collecting the Physical Disk DataEvent Log 235 Recovery Guru 236 Storage Array ProfileSelect Storage Array→ View→ Profile 237 238 Viewing the Logical AssociationsViewing the Physical Associations 239 Finding Nodes Select Find all free capacity nodes Using Go ToClick Find Next 240 241 Recovering From an Unresponsive Storage Array Condition 242 243 244 Locating a Physical Disk 245 Locating an Expansion EnclosureSelect Physical Disk→ Blink→ Expansion Enclosure 246 Capturing the State Information 247 SMrepassist Utility 248 Recovering From an Unidentified Storage ArrayUnidentified Devices 249 250 251 Starting or Restarting the Host Context Agent Software 252 Troubleshooting Loss of Communication Troubleshooting Your ArrayTroubleshooting External Connections 253 254 Troubleshooting Power Supply/Cooling Fan Module 255 Troubleshooting Array Cooling ProblemsTroubleshooting Expansion Enclosure Management Modules 256 Troubleshooting RAID Controller Modules 257 258 Troubleshooting Hard Drives 259 Troubleshooting Array and Expansion Enclosure Connections 260 Troubleshooting a Wet Storage Array 261 Troubleshooting a Damaged ArrayConditions PCI Errors ECC ErrorsInvalid Storage Array Critical Conditions 263 Noncritical Conditions 264 Contacting Dell Getting HelpVisit support.dell.com Click All Support from Support menu 266 267 Index 268 269 270 271 272