Dell MD3220, MD3200 owner manual Changing the RAID Level of a Disk Group, 129

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cSelect Disk Group→ Change→ Ownership/Preferred Path. Alternatively, you can right-click the disk group and select Change→ Ownership/Preferred Path from the pop-up menu.

dSelect the RAID controller module.

CAUTION: Possible loss of data access– Changing ownership at the disk group level causes every virtual disk in that disk group to transfer to the other RAID controller module and use the new I/O path. If you do not want to set every virtual disk to the new path, change ownership at the virtual disk level instead.

eClick Yes.

The ownership of the disk group is changed. I/O to the disk group is now directed through this I/O path. You are finished with this procedure.

NOTE: The disk group may not use the new I/O path until the multi-path driver reconfigures and recognizes the new path. This action usually takes less than 5 minutes.

Changing the RAID Level of a Disk Group

Use the Change→ RAID Level option to change the RAID level on a selected disk group. Using this option changes the RAID levels of every virtual disk that comprises the disk group. Performance may be slightly affected during the operation.

Keep these guidelines in mind when you change the RAID level of a disk group:

•You cannot cancel this operation after it begins.

•The disk group must be in Optimal status before you can perform this operation.

•Your data remains available during this operation.

•If you do not have enough capacity in the disk group to convert to the new RAID level, an error message is displayed, and the operation does not continue. If you have unassigned physical disks, use the Disk Group>> Add Free Capacity (Physical Disks) option to add additional capacity to the disk group. Then retry the operation.

To change the RAID level of a disk group:

1Select the Logical tab.

2Select the disk group.

Configuration: Disk Groups and Virtual Disks

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Contents Dell PowerVault MD3200 and MD3220 Storage Arrays Page Contents Cache Functions and Features RAID Controller Module ConnectorsVirtual Disk Operations Limit Out-of-Band and In-Band Management Configuring Alert NotificationsEnabling or Disabling the Event Monitor Managing Host Port IdentifiersCreating Disk Groups and Virtual Disks Configuring Hot Spare Physical Disks Physical Disk Security with SelfHost-to-Virtual Disk Mapping 129 126130 131Creating a Snapshot Virtual Disk Using Creating a Snapshot Virtual Disk Using 142146 151161 160Types of Virtual Disk Copies 164 165174 Using DM Multipathing Devices 180176 179201 Self-Monitoring Analysis and Reporting202 203Power Supply/Cooling Fan Module 216 RAID Controller Module Backup Battery Unit 214218 221232 Recovering From an Unresponsive Storage 241233 Collecting the Physical Disk Data 234Troubleshooting Power Supply/Cooling 254 Safety First-For you and Your Array 253Troubleshooting Expansion Enclosure Troubleshooting a Damaged Array 261Getting Help Contacting Dell Index Contents About This Document IntroductionDell PowerVault Modular Disk Storage Manager Other Information you May NeedMD3200 Series Storage Array Introduction Introduction Overview Planning About Your Storage ArrayFront-Panel Features and Indicators Hardware FeaturesPlanning About Your Storage Array Item Indicator, Button, or Icon Description Connector Back Panel Features and Indicators Hard Drive Indicators Hard-Drive Indicator PatternsDrive-Status Indicator Pattern Condition Power Supply and Cooling Fan FeaturesPower Indicator Codes and Features RAID Controller Modules Planning RAID Controller ModulesFunction RAID Controller Module Connectors and FeaturesItem Component Function RAID Controller Module-Additional Features Battery Backup UnitComponent Function Storage Array Thermal Shutdown System Password ResetShutdown Threshold Type Event DescriptionCache Mirroring Cache Functions and FeaturesWrite-Back Cache Write-Through CachePhysical Disks, Virtual Disks, and Disk Groups Planning MD3200 Series Storage Array Terms and ConceptsPhysical Disk States Physical DisksVirtual Disks and Disk Groups Self-Monitoring Analysis and Reporting TechnologyRAID Levels Virtual Disk StatesRAID Controller Virtual Disk States Description RAID RAID Level UsageRAID Virtual Disk Operations Segment SizeVirtual Disk Initialization Background InitializationConsistency Check Media VerificationCycle Time Virtual Disk Operations Limit Disk Group OperationsRAID Level Migration Segment Size MigrationDisk Group Expansion Virtual Disk Capacity ExpansionRAID Background Operations Priority Disk Group DefragmentationDisk Group Operations Limit Disk Migration Virtual Disk Migration and Disk RoamingPlanning MD3200 Series Storage Array Terms and Concepts Disk Roaming Advanced FeaturesHost Server-to-Virtual Disk Mapping Host TypesSnapshot Virtual Disks Snapshot Repository Virtual Disk Virtual Disk Copy Source Virtual DiskTarget Virtual Disk Virtual Disk Recovery Using Snapshot and Disk Copy TogetherMulti-Path Software Virtual Disk Ownership Preferred and Alternate Controllers and PathsLoad Balancing AMW, select Storage Array→ Monitor Performance Monitoring MD3200 Series System PerformanceClick Settings Performance Monitor Table Description Column Headings Planning MD3200 Series Storage Array Terms and Concepts User Interface Configuration OverviewEnterprise Management Window Array Management Window Inheriting the System SettingsConfiguration Overview Configuration About Your Storage Array Out-of-Band and In-Band ManagementOut-of-Band Management Storage Arrays Adding Storage ArraysIn-Band Management Automatic Discovery of Storage Arrays Manual Addition of a Storage ArraySelect Edit→ Add Storage Array Setting Up Your Storage Array AMW, select Storage Array→ Blink→ Storage Array Locating Storage ArraysAMW Setup tab, select Rename Storage Array Naming or Renaming Storage ArraysName/Rename Storage Arrays dialog is displayed Setting a Password PasswordType the New password Viewing Storage Array Connections Password GuidelinesRemoving Storage Arrays Adding/Editing a Comment to an Existing Storage ArraySelect Edit→ Comment Select Edit→ Remove→ Storage ArrayFailover Alert Display Enabling Premium FeaturesChanging the Cache Settings on the Storage Array Changing Expansion Enclosure ID NumberChanging the Enclosure Order in the Physical Pane Select Configure Alerts Configuring Alert NotificationsAMW, select Storage Array→ Change→ Enclosure Order Select All storage arraysConfiguring 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 Enabling or Disabling the Event Monitor WindowsLinux Configuring Host Access Configuration About Your HostUsing the Mappings Tab Defining a HostSelect Mappings→ Define→ Host Configuration About Your Host Managing Host Groups Removing Host AccessCreating a Host Group Select Mappings→ RemoveAdding a Host to a Host Group Moving a Host to a Different Host GroupRemoving a Host From a Host Group Select Mappings→ MoveHost Topology Removing a Host GroupStarting or Stopping the Host Context Agent LinuxWindows Click Action→ Start Data Path ProtectionAdd Host Port Identifier dialog is displayed Managing Host Port IdentifiersConfiguration About Your Host Creating Disk Groups and Virtual Disks Configuration Disk Groups and Virtual DisksIntroduction Create Disk Group window is displayed Creating Disk GroupsConfiguration Disk Groups and Virtual Disks Creating Virtual Disks Locating a Disk GroupConfiguration Disk Groups and Virtual Disks Map later Using Mappings View Changing the Virtual Disk Modification Priority100 101 Changing the Virtual Disk Cache Settings102 103 Changing the Segment Size of a Virtual DiskChanging the I/O Type Select Virtual Disk→ Change→ Segment Size104 Choosing an Appropriate Physical Disk Type File system typical Database Multimedia Custom105 106 Physical Disk Security with Self Encrypting Disk107 Shows how to interpret the security status of a disk group108 Creating a Security Key109 Click Create KeyChanging a Security Key Confirm Change Security Key window is displayed110 Saving a Security Key Click Change Key111 112 Validate Security KeyUnlocking Secure Physical Disks Erasing Secure Physical Disks113 Configuring Hot Spare Physical Disks Select Physical disk→ Hot Spare Coverage114 Hot Spare Physical Disk Options window is displayed Hot Spares and RebuildClick Unassign 115Hot Spare Operation Global Hot SparesHot Spare Drive Protection 116117 Enclosure Loss ProtectionCriteria for Enclosure Loss Protection RAID Level 118Host-to-Virtual Disk Mapping Creating Host-to-Virtual Disk Mappings119 120 121 Modifying and Removing Host-to-Virtual Disk MappingRemoving Host-to-Virtual Disk Mapping Changing Controller Ownership of the Virtual DiskSelect Virtual Disk→ Change→ Ownership/Preferred Path 122123 Select Disk Group→ Change→ Ownership/Preferred PathChanging the RAID Level of a Disk Group Removing a Host-to-Virtual Disk Mapping Using Linux DmmpSelect Disk Group→ Change→ RAID Level 124125 Restricted Mappings 126Operating System Highest LUN 127 128 129 Changing the RAID Level of a Disk Group130 Storage PartitioningDisk Group and Virtual Disk Expansion Select Disk Group→ Add Free Capacity Physical Disks131 Using Free Capacity Virtual Disk Expansion132 Disk Group Migration Using Unconfigured CapacityExport Disk Group Non-Exportable ComponentsExporting a Disk Group Import Disk GroupImporting a Disk Group 134135 Non-Importable ComponentsChanging Media Scan Settings Storage Array Media Scan136 137 Suspending the Media Scan138 139 Configuration Premium Feature- Snapshot Virtual DisksScheduling a Snapshot Virtual Disk Common Reasons for Scheduling a Snapshot Virtual Disk140 141 Guidelines for Creating Snapshot SchedulesEnabling and Disabling Snapshot Schedules Creating a Snapshot Virtual Disk Using the Simple PathScheduled Snapshot Icons 142143 About the Simple Path144 145 Creating a Snapshot Virtual Disk Using the Advanced Path About the Advanced Path146 147 148 149 Creating the Snapshot Using the Advanced Path150 Specify Virtual Disk Parameters window is displayed151 Specifying Snapshot Virtual Disk Names152 Snapshot Repository Capacity153 Click Add Physical Disks Add Physical Disks window closes154 155 Disabling a Snapshot Virtual Disk156 Preparing Host Servers to Re-create a Snapshot Virtual DiskSnapshot Rollback Re-creating Snapshot Virtual DisksSelect Virtual Disk→ Snapshot→ Re-create 157158 Rules and Guidelines for Performing a Snapshot RollbackProtecting Against a Failed Snapshot Rollback Command Line OptionsPrevious Versions of the MD Storage Manager Starting a Snapshot RollbackRollback Resuming a Snapshot RollbackConfirm Rollback Snapshot Virtual Disk dialog is displayed 160161 Canceling a Snapshot Rollback162 163 Configuration Premium Feature- Virtual Disk CopyTypes of Virtual Disk Copies Offline Copy164 165 Online CopyCreating a Virtual Disk Copy for an Mscs Shared Disk Virtual Disk Read/Write Permissions166 167 Virtual Disk Copy RestrictionsCreating a Virtual Disk Copy Before you Begin168 Create Copy Wizard Virtual Disk Copy and Modification OperationsFailed Virtual Disk Copy 169Failed RAID Controller Module Preferred RAID Controller Module OwnershipCopy Manager 170171 Copying the Virtual Disk172 Storage Array Performance During Virtual Disk CopyStopping a Virtual Disk Copy Setting Copy PrioritySelect Change→ Copy Priority 173Recopying a Virtual Disk Preparing Host Servers to Recopy a Virtual Disk174 175 Re-Copying a Virtual DiskSelect Copy→ Re-Copy Removing Copy PairsSelect Copy→ Remove Copy Pairs 176177 178 179 Configuration Device Mapper Multipath for LinuxUsing DM Multipathing Devices Prerequisite Steps180 Device Mapper Configuration Steps Scan for Newly Added Virtual Disks181 182 Create a New fdisk Partition on a Multipath Device Node Add a New Partition to Device Mapper183 Mount a Device Mapper Partition Create a File System on a Device Mapper PartitionReady for Use Blacklist Local Drive in Multi-path Driver185 Important Information About Special Partitions186 Device Mapper Commands Descriptions187 Limitations and Known IssuesTroubleshooting 188Question Answer 189 Downloading RAID Controller and Nvsram Packages190 Downloading Both RAID Controller and Nvsram Firmware191 Click Transfer192 Downloading Only Nvsram FirmwareSelect Tools→ Upgrade RAID Controller Module Firmware Upgrade RAID Controller Module Firmware window is displayed193 194 195 Downloading Physical Disk Firmware196 Downloading MD1200 Series Expansion Module EMM Firmware AMW, select Advanced→ Maintenance→ Download→ EMM FirmwareDownload Environmental EMM Firmware dialog is displayed 197Media Errors and Unreadable Sectors Self-Monitoring Analysis and Reporting Technology Smart198 199 200 Management Installing Array Components Recommended Tools201 Front Bezel Optional Installing the Front BezelRemoving the Front Bezel 202Hard Drives Safety Models AMT, E03J, and E04JRemoving a Hard-Drive Blank 203Installing a Hard-Drive Blank Removing a Hard Drive204 205 Removing and Installing a Hard Drive206 Installing a Hard Drive207 Removing a Hard Drive From a Hard-Drive Carrier208 RAID Controller Module Installing a Hard Drive Into a Hard-Drive CarrierRemoving a RAID Controller Module Blank 209210 Installing a RAID Controller Module Blank211 Removing a RAID Controller ModuleInstalling a RAID Controller Module Opening the RAID Controller Module212 213 Closing the RAID Controller ModuleRAID Controller Module Backup Battery Unit Removing the RAID Controller Module Backup Battery Unit214 215 Installing the RAID Controller Module Backup Battery UnitPower Supply/Cooling Fan Module Removing a Power Supply/Cooling Fan Module216 217 Installing a Power Supply/Cooling Fan ModuleControl Panel Removing the Control Panel218 219 220 Installing the Control PanelBackplane Removing the Backplane221 222 17. Removing and Installing the Backplane-PowerVault MD3220 16. Removing and Installing the Backplane-PowerVault MD3200224 Installing the BackplaneManagement Firmware Inventory Viewing the Firmware Inventory225 226 Virtual Disk Service Microsoft ServicesVolume Shadow-Copy Service Management System Interfaces228 Start-Up Routine Troubleshooting Your Storage Array SoftwareDevice Health Conditions 229On the Setup tab, select Manage a Storage Array 230Status Icon Description Additional Status Icons Description 231232 Storage Array Support DataAutomatically Collect the Support Bundle Data Enter the Execution summary233 Collecting the Physical Disk Data Event Log234 235 Recovery GuruStorage Array Profile Select Storage Array→ View→ Profile236 237 Viewing the Logical Associations Viewing the Physical Associations238 239 Finding NodesSelect Find all free capacity nodes Using Go ToClick Find Next 240241 Recovering From an Unresponsive Storage Array Condition242 243 244 Locating a Physical DiskLocating an Expansion Enclosure Select Physical Disk→ Blink→ Expansion Enclosure245 246 Capturing the State Information247 SMrepassist UtilityRecovering From an Unidentified Storage Array Unidentified Devices248 249 250 251 Starting or Restarting the Host Context Agent Software252 Troubleshooting Loss of Communication Troubleshooting Your ArrayTroubleshooting External Connections 253254 Troubleshooting Power Supply/Cooling Fan ModuleTroubleshooting Array Cooling Problems Troubleshooting Expansion Enclosure Management Modules255 256 Troubleshooting RAID Controller Modules257 258 Troubleshooting Hard Drives259 Troubleshooting Array and Expansion Enclosure Connections260 Troubleshooting a Wet Storage ArrayTroubleshooting a Damaged Array Conditions261 PCI Errors ECC ErrorsInvalid Storage Array Critical Conditions263 Noncritical Conditions264 Contacting Dell Getting HelpVisit support.dell.com Click All Support from Support menu266 267 Index268 269 270 271 272

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