142 | Dell MD3200, MD3220 specification

Before creating a Snapshot Virtual Disk:

•The following types of virtual disks are not valid source virtual disks: snapshot repository virtual disks, snapshot virtual disks, target virtual disks that are participating in a virtual disk copy.

NOTE: Virtual Disk Copy is an Advanced (Premium) feature.

•You cannot create a snapshot of a virtual disk that contains unreadable sectors.

•You must satisfy the requirements of your host operating system for creating snapshot virtual disks. Failure to meet the requirements of your host operating system results in an inaccurate snapshot of the source virtual disk or the target virtual disk in a virtual disk copy.

NOTE: Before you create a new snapshot of a source virtual disk, stop any data access (I/O) activity or suspend data transfer to the source virtual disk to ensure that you capture an accurate snapshot of the source virtual disk. Close all applications, including Windows Internet Explorer®, to make sure all I/O activity has stopped.

NOTE: Removing the drive letter of the associated virtual disk(s) in Windows or unmounting the virtual drive in Linux helps to guarantee a stable copy of the drive for the Snapshot.

Before creating a snapshot virtual disk, the host server must be in the proper state. To prepare your host server:

1Stop all I/O activity to the source.

2Using your Windows system, flush the cache to the source. At the host prompt, type SMrepassist -f<filename-identifier>and press <Enter>. For more information, see "SMrepassist Utility" on page 235.

3Remove the drive letter(s) of the source in Windows or unmount the virtual drive(s) in Linux to help guarantee a stable copy of the drive for the Snapshot. If this is not done, the snapshot operation reports that it has completed successfully, but the snapshot data is not updated properly.

NOTE: Verify that the virtual disk has a status of Optimal or Disabled by clicking the Summary tab and then clicking Disk Groups & Virtual Disks.

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Configuration: Premium Feature—Snapshot Virtual Disks

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Dell MD3200, MD3220 owner manual 142

Contents

Dell PowerVault MD3200 and MD3220 Storage Arrays May Contents Cache Functions and Features Planning MD3200 Series Storage Array Terms and Concepts Virtual Disk Operations Limit Configuring Alert Notifications Out-of-Band and In-Band Management Enabling or Disabling the Event Monitor Managing Host Port Identifiers Physical Disk Security with Self Encrypting Configuring Hot Spare Physical DisksHost-to-Virtual Disk Mapping 122 Creating a Snapshot Virtual Disk UsingSnapshot Using the Simple Path 137 125 Creating a Virtual Disk Copy for an Mscs 145Re-creating a Snapshot Virtual Disk 152 154 160 Using DM Multipathing Devices 168159 161 177 Media Errors and Unreadable Sectors 187Downloading RAID Controller and Nvsram 178 202 Power Supply/Cooling Fan Module 204197 206 Storage Array Support Data 220 Recovering From an Unresponsive Storage 229217 221 Troubleshooting Loss of Communication Safety First-For you and Your ArrayTroubleshooting Storage Array Startup Failure Troubleshooting External Connections 253 Introduction About This Document Dell PowerVault MD3200 Series Storage Array Dell PowerVault Modular Disk Storage Manager Other Information you May Need Introduction Planning About Your Storage Array Overview Hardware Features Front-Panel Features and Indicators Planning About Your Storage Array Item Indicator, Button, or Icon Description Connector Back Panel Features and Indicators Hard-Drive Indicator Patterns Hard Drive Indicators Power Supply and Cooling Fan Features Drive-Status Indicator Pattern Condition Power Indicator Codes Power Indicator Codes Item LED Type Icon Description Planning RAID Controller Modules RAID Controller Modules RAID Controller Module Connectors and Features Function Item Component Function Battery Backup Unit RAID Controller Module-Additional FeaturesComponent Function Shutdown Threshold Type System Password ResetStorage Array Thermal Shutdown Event Description Write-Back Cache Cache Functions and FeaturesCache Mirroring Write-Through Cache Planning MD3200 Series Storage Array Terms and Concepts Physical Disks, Virtual Disks, and Disk Groups Physical Disks Physical Disk States Self-Monitoring Analysis and Reporting Technology Virtual Disks and Disk Groups Virtual Disk States RAID LevelsRAID Controller Virtual Disk States Description RAID Level Usage RAID RAID Virtual Disk Initialization Segment SizeVirtual Disk Operations Background Initialization Media Verification Consistency CheckCycle Time RAID Level Migration Disk Group OperationsVirtual Disk Operations Limit Segment Size Migration Virtual Disk Capacity Expansion Disk Group Expansion Disk Group Defragmentation RAID Background Operations PriorityDisk Group Operations Limit Virtual Disk Migration and Disk Roaming Disk Migration Planning MD3200 Series Storage Array Terms and Concepts Advanced Features Disk Roaming Host Types Host Server-to-Virtual Disk MappingSnapshot Virtual Disks Snapshot Repository Virtual Disk Source Virtual Disk Virtual Disk RecoveryVirtual Disk Copy Target Virtual Disk Using Snapshot and Disk Copy Together Multi-Path Software Preferred and Alternate Controllers and Paths Virtual Disk Ownership Load Balancing Monitoring MD3200 Series System Performance Performance Monitor Table Description Column Headings For more information, see the online help topics Planning MD3200 Series Storage Array Terms and Concepts Configuration Overview User Interface Enterprise Management Window Select Inherit system settings for color and font Inheriting the System SettingsSelect Tools→ Inherit System Settings Array Management Window Configuration Overview Out-of-Band and In-Band Management Configuration About Your Storage ArrayOut-of-Band Management Adding Storage Arrays Storage ArraysIn-Band Management Manual Addition of a Storage Array Automatic Discovery of Storage ArraysSelect Edit→ Add Storage Array Setting Up Your Storage Array Locating Storage Arrays AMW, select Storage Array→ Blink→ Storage Array Naming or Renaming Storage Arrays Name/Rename Storage Arrays dialog appears Password Setting a PasswordType the New password Password Guidelines Viewing Storage Array Connections Select Edit→ Comment Adding/Editing a Comment to an Existing Storage ArrayRemoving Storage Arrays Select Edit→ Remove→ Storage Array Enabling Premium Features Failover Alert Display Changing Expansion Enclosure ID Number Changing the Cache Settings on the Storage ArrayChanging the Enclosure Order in the Physical Pane AMW, select Storage Array→ Change→ Enclosure Order Configuring Alert NotificationsSelect Configure Alerts Select All storage arrays Configuring E-mail Alerts Configuration About Your Storage Array Configuring Snmp Alerts Battery Settings Setting the Storage Array RAID Controller Module Clocks Configuration About Your Storage Array Configuration Event Monitor Windows Enabling or Disabling the Event MonitorLinux Configuration About Your Host Configuring Host Access Defining a Host Using the Mappings TabSelect Mappings→ Define→ Host Configuration About Your Host Creating a Host Group Removing Host AccessManaging Host Groups Select Mappings→ Remove Removing a Host From a Host Group Moving a Host to a Different Host GroupAdding a Host to a Host Group Select Mappings→ Move Removing a Host Group Host Topology Linux Starting or Stopping the Host Context AgentWindows Data Path Protection Click Action→ Start Managing Host Port Identifiers Add Host Port Identifier dialog appears Configuration About Your Host Configuration Disk Groups and Virtual Disks Creating Disk Groups and Virtual Disks Creating Disk Groups Introduction Create Disk Group window is displayed Configuration Disk Groups and Virtual Disks Locating a Disk Group Creating Virtual Disks Configuration Disk Groups and Virtual Disks Map later Using Mappings View Changing the Virtual Disk Modification Priority Changing the Virtual Disk Cache Settings 100 Changing the Segment Size of a Virtual Disk 101 Select Virtual Disk→ Change→ Segment Size Changing the I/O Type102 File system typical Database Multimedia Custom Choosing an Appropriate Physical Disk Type103 Physical Disk Security with Self Encrypting Disk 104 105 Creating a Security Key 106 Click Create Key 107 Confirm Change Security Key window is displayed Changing a Security Key108 Click Change Key Saving a Security Key109 Unlocking Secure Physical Disks 110 Erasing Secure Physical Disks Configuring Hot Spare Physical Disks111 Hot Spare Physical Disk Options window is displayed Select Physical disk→ Hot Spare Coverage112 Click Unassign Hot Spares and RebuildGlobal Hot Spares 113 Hot Spare Drive Protection Hot Spare Operation114 115 Enclosure Loss ProtectionCriteria for Enclosure Loss Protection RAID Level Host-to-Virtual Disk Mapping 116 Creating Host-to-Virtual Disk Mappings 117 Modifying and Removing Host-to-Virtual Disk Mapping 118 Changing Controller Ownership of the Virtual Disk 119 Select Virtual Disk→ Change→ Ownership/Preferred Path Removing Host-to-Virtual Disk Mapping120 Select Disk Group→ Change→ Ownership/Preferred Path 121 Select Disk Group→ Change→ RAID Level Restricted MappingsChanging the RAID Level of a Disk Group 122 123 124 Changing the RAID Level of a Disk Group 125 Storage Partitioning 126 127 Select Disk Group→ Add Free Capacity Physical Disks Disk Group and Virtual Disk Expansion128 Virtual Disk Expansion Using Free CapacityUsing Unconfigured Capacity 129 Exporting a Disk Group Disk Group MigrationExport Disk Group Non-Exportable Components Importing a Disk Group Import Disk Group131 Non-Importable Components Storage Array Media Scan132 Changing Media Scan Settings 133 Suspending the Media Scan 134 Configuration Premium Feature- Snapshot Virtual Disks 135 Creating a Snapshot Virtual Disk Using the Simple Path 136 About the Simple Path 137 138 139 About the Advanced Path Creating a Snapshot Virtual Disk Using the Advanced Path140 141 142 Creating the Snapshot Using the Advanced Path 143 Specify Virtual Disk Parameters window is displayed 144 Specifying Snapshot Virtual Disk Names 145 Snapshot Repository Capacity 146 147 Add Physical Disks window closes Click Add Physical Disks148 Select Virtual Disk→ Snapshot→ Re-create Re-creating Snapshot Virtual Disks149 Disabling a Snapshot Virtual Disk 150 Preparing Host Servers to Re-create a Snapshot Virtual Disk 151 Select Virtual Disk → Snapshot→ Re-create Re-creating a Snapshot Virtual Disk152 Configuration Premium Feature- Virtual Disk Copy 153 Creating a Virtual Disk Copy for an Mscs Shared Disk 154 Virtual Disk Copy Restrictions Virtual Disk Read/Write Permissions155 Creating a Virtual Disk Copy 156 Create Copy Wizard Before you BeginVirtual Disk Copy and Modification Operations 157 Failed Virtual Disk Copy Preferred RAID Controller Module OwnershipFailed RAID Controller Module 158 Copying the Virtual Disk Copy Manager159 Storage Array Performance During Virtual Disk Copy 160 Select Change→ Copy Priority Setting Copy PriorityStopping a Virtual Disk Copy 161 Preparing Host Servers to Recopy a Virtual Disk Recopying a Virtual Disk162 Recopying the Virtual Disk 163 Select Copy→ Re-Copy Removing Copy Pairs164 165 166 Configuration Device Mapper Multipath for Linux 167 Prerequisite Steps Using DM Multipathing Devices168 Scan for Newly Added Virtual Disks Device Mapper Configuration Steps169 170 Add a New Partition to Device Mapper Create a New fdisk Partition on a Multipath Device Node171 Ready for Use Create a File System on a Device Mapper PartitionMount a Device Mapper Partition Important Information About Special Partitions Device Mapper Commands Descriptions 173 Limitations and Known Issues 174 175 TroubleshootingQuestionAnswer 176 Downloading RAID Controller and Nvsram Packages 177 Downloading Both RAID Controller and Nvsram Firmware 178 Click Transfer 179 Downloading Only Nvsram Firmware 180 Upgrade RAID Controller Module Firmware window appears Select Tools→ Upgrade RAID Controller Module Firmware181 182 Downloading Physical Disk Firmware 183 184 Download Environmental EMM Firmware dialog appears AMW, select Advanced→ Maintenance→ Download→ EMM FirmwareDownloading MD1200 Series Expansion Module EMM Firmware 185 Self-Monitoring Analysis and Reporting Technology Smart 186 Media Errors and Unreadable Sectors 187 188 Recommended Tools Management Installing Array Components189 Removing the Front Bezel Installing the Front BezelFront Bezel Optional 190 Removing a Drive Blank Safety Models AMT, E03J, and E04JHard Drives 191 Removing a Hard Drive Installing a Drive Blank192 Removing and Installing a Hard Drive 193 Installing a Hard Drive 194 Removing a Hard Drive From a Hard-Drive Carrier 195 196 Removing a RAID Controller Module Blank Installing a Hard Drive Into a Drive CarrierRAID Controller Module 197 Installing a RAID Controller Module Blank 198 Removing a RAID Controller Module 199 Opening the RAID Controller Module Installing a RAID Controller Module200 Closing the RAID Controller Module 201 Removing the RAID Controller Module Backup Battery Unit RAID Controller Module Backup Battery Unit202 Installing the RAID Controller Module Backup Battery Unit 203 Removing a Power Supply/Cooling Fan Module Power Supply/Cooling Fan Module204 Installing a Power Supply/Cooling Fan Module 205 Removing the Control Panel Control Panel206 207 Installing the Control Panel 208 Removing the Backplane Backplane209 210 16. Removing and Installing the Backplane-PowerVault MD3200 17. Removing and Installing the Backplane-PowerVault MD3220 Installing the Backplane 212 Viewing the Firmware Inventory Management Firmware Inventory213 214 Volume Shadow-Copy Service Microsoft ServicesVirtual Disk Service Management System Interfaces 216 Device Health Conditions Troubleshooting Your Storage Array SoftwareStart-Up Routine 217 218 On the Setup tab, select Manage a Storage ArrayStatus Icon Description 219 Additional Status Icons Description Storage Array Support Data 220 Enter the Execution summary Automatically Collect the Support Bundle Data221 Event Log Collecting the Physical Disk Data222 Recovery Guru 223 Select Storage Array→ View→ Profile Storage Array Profile224 225 Viewing the Physical Associations Viewing the Logical Associations226 Finding Nodes 227 Click Find Next Using Go ToSelect Find all free capacity nodes 228 Recovering From an Unresponsive Storage Array Condition 229 230 231 Locating a Physical Disk 232 Select Physical Disk→ Blink→ Expansion Enclosure Locating an Expansion Enclosure233 Capturing the State Information 234 SMrepassist Utility 235 Unidentified Devices Recovering From an Unidentified Storage Array236 237 238 Starting or Restarting the Host Context Agent Software 239 240 Troubleshooting External Connections Troubleshooting Your ArrayTroubleshooting Loss of Communication 241 Troubleshooting Power Supply/Cooling Fan Module 242 Troubleshooting Expansion Enclosure Management Modules Troubleshooting Array Cooling Problems243 Troubleshooting RAID Controller Modules 244 245 Troubleshooting Hard Drives 246 Troubleshooting Array and Expansion Enclosure Connections 247 Troubleshooting a Wet Storage Array 248 Conditions Troubleshooting a Damaged Array249 Invalid Storage Array ECC ErrorsPCI Errors Critical Conditions Noncritical Conditions 251 252 Visit support.dell.com Getting HelpContacting Dell Click All Support from Support menu 254 Index 255 256 257 258 259 260