Dell MD3220, MD3200 owner manual About the Simple Path, 143

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About the Simple Path

Using the simple path, you can specify:

•Snapshot Virtual Disk Name—A user-specified name that helps you associate the snapshot virtual disk to its corresponding snapshot repository virtual disk and source virtual disk.

•Snapshot Repository Virtual Disk Name—A user-specified name that helps you associate the snapshot repository virtual disk to its corresponding snapshot virtual disk and source virtual disk.

•Snapshot Repository Virtual Disk Capacity—The snapshot repository virtual disk capacity is expressed as a percentage of the source virtual disk capacity (maximum 220 percent).

•Schedule—Creates the snapshot virtual disk at a specified time, or according to a regularly occurring interval. If no schedule is specified, the snapshot operation begins immediately. This parameter can also be used to apply a schedule to an existing snapshot virtual disk.

Using the simple path, the following defaults are used for the other parameters of a snapshot virtual disk:

•Capacity Allocation—The snapshot repository virtual disk is created using free capacity on the same disk group where the source virtual disk resides.

•Host-to-Virtual Disk Mapping—The default setting is Map now.

•Percent Full—When the snapshot repository virtual disk reaches the specified repository full percentage level, the event is logged in the Major Event Log (MEL). The default snapshot repository full percentage level is 50% of the source virtual disk.

•Snapshot Repository Virtual Disk Full Conditions—When the snapshot repository virtual disk is full, you are given a choice of failing write activity to the source virtual disk or failing the snapshot virtual disk.

Preparing Host Servers to Create the Snapshot Using the Simple Path

NOTE: Before using the Snapshot Virtual Disks Premium Feature in a Microsoft Windows clustered configuration, you must first map the snapshot virtual disk to the cluster node that owns the source virtual disk. This ensures that the cluster nodes correctly recognize the snapshot virtual disk.

Configuration: Premium Feature—Snapshot 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 NotificationsCreating 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 131 126129 130151 Creating a Snapshot Virtual Disk Using 142Creating a Snapshot Virtual Disk Using 146165 160161 Types of Virtual Disk Copies 164179 Using DM Multipathing Devices 180174 176203 Self-Monitoring Analysis and Reporting201 202221 RAID Controller Module Backup Battery Unit 214Power Supply/Cooling Fan Module 216 218Collecting the Physical Disk Data 234 Recovering From an Unresponsive Storage 241232 233Troubleshooting a Damaged Array 261 Safety First-For you and Your Array 253Troubleshooting Power Supply/Cooling 254 Troubleshooting Expansion EnclosureGetting Help Contacting Dell Index Contents About This Document IntroductionMD3200 Series Storage Array Dell PowerVault Modular Disk Storage ManagerOther Information you May Need 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 Component Function RAID Controller Module-Additional FeaturesBattery Backup Unit Event Description System Password ResetStorage Array Thermal Shutdown Shutdown Threshold TypeWrite-Through Cache Cache Functions and FeaturesCache Mirroring Write-Back 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 Controller Virtual Disk States Description RAID LevelsVirtual Disk States RAID RAID Level UsageRAID Background Initialization Segment SizeVirtual Disk Operations Virtual Disk InitializationCycle Time Consistency CheckMedia Verification Segment Size Migration Disk Group OperationsVirtual Disk Operations Limit RAID Level MigrationDisk Group Expansion Virtual Disk Capacity ExpansionDisk Group Operations Limit RAID Background Operations PriorityDisk Group Defragmentation Disk Migration Virtual Disk Migration and Disk RoamingPlanning MD3200 Series Storage Array Terms and Concepts Disk Roaming Advanced FeaturesSnapshot 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 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 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 ArraysName/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 GuidelinesSelect Edit→ Remove→ Storage Array Adding/Editing a Comment to an Existing Storage ArrayRemoving Storage Arrays Select Edit→ CommentFailover Alert Display Enabling Premium FeaturesChanging the Enclosure Order in the Physical Pane Changing the Cache Settings on the Storage ArrayChanging Expansion Enclosure ID Number Select All storage arrays Configuring Alert NotificationsSelect Configure Alerts AMW, select Storage Array→ Change→ Enclosure OrderConfiguring 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 HostSelect Mappings→ Define→ Host Using the Mappings TabDefining a Host Configuration About Your Host Select Mappings→ Remove Removing Host AccessManaging Host Groups Creating a Host GroupSelect Mappings→ Move Moving a Host to a Different Host GroupAdding a Host to a Host Group Removing a Host From a Host GroupHost Topology Removing a Host GroupWindows Starting or Stopping the Host Context AgentLinux 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 100 Map later Using Mappings ViewChanging the Virtual Disk Modification Priority 101 Changing the Virtual Disk Cache Settings102 103 Changing the Segment Size of a Virtual Disk104 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 Disk107 Shows how to interpret the security status of a disk group108 Creating a Security Key109 Click Create Key110 Changing a Security KeyConfirm Change Security Key window is displayed 111 Saving a Security KeyClick Change Key 112 Validate Security Key113 Unlocking Secure Physical DisksErasing Secure Physical Disks 114 Configuring Hot Spare Physical DisksSelect Physical disk→ Hot Spare Coverage 115 Hot Spares and RebuildHot Spare Physical Disk Options window is displayed Click Unassign116 Global Hot SparesHot Spare Operation Hot Spare Drive Protection117 Enclosure Loss ProtectionCriteria for Enclosure Loss Protection RAID Level 118119 Host-to-Virtual Disk MappingCreating Host-to-Virtual Disk Mappings 120 121 Modifying and Removing Host-to-Virtual Disk Mapping122 Changing Controller Ownership of the Virtual DiskRemoving Host-to-Virtual Disk Mapping Select Virtual Disk→ Change→ Ownership/Preferred Path123 Select Disk Group→ Change→ Ownership/Preferred Path124 Removing a Host-to-Virtual Disk Mapping Using Linux DmmpChanging the RAID Level of a Disk Group Select Disk Group→ Change→ RAID Level125 Operating System Highest LUN Restricted Mappings126 127 128 129 Changing the RAID Level of a Disk Group130 Storage Partitioning131 Disk Group and Virtual Disk ExpansionSelect Disk Group→ Add Free Capacity Physical Disks 132 Using Free CapacityVirtual Disk Expansion Non-Exportable Components Using Unconfigured CapacityDisk Group Migration Export Disk Group134 Import Disk GroupExporting a Disk Group Importing a Disk Group135 Non-Importable Components136 Changing Media Scan SettingsStorage Array Media Scan 137 Suspending the Media Scan138 139 Configuration Premium Feature- Snapshot Virtual Disks140 Scheduling a Snapshot Virtual DiskCommon Reasons for Scheduling a Snapshot Virtual Disk 141 Guidelines for Creating Snapshot Schedules142 Creating a Snapshot Virtual Disk Using the Simple PathEnabling and Disabling Snapshot Schedules Scheduled Snapshot Icons143 About the Simple Path144 145 146 Creating a Snapshot Virtual Disk Using the Advanced PathAbout the Advanced Path 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 154 Click Add Physical DisksAdd Physical Disks window closes 155 Disabling a Snapshot Virtual Disk156 Preparing Host Servers to Re-create a Snapshot Virtual Disk157 Re-creating Snapshot Virtual DisksSnapshot Rollback Select Virtual Disk→ Snapshot→ Re-create158 Rules and Guidelines for Performing a Snapshot RollbackStarting a Snapshot Rollback Command Line OptionsProtecting Against a Failed Snapshot Rollback Previous Versions of the MD Storage Manager160 Resuming a Snapshot RollbackRollback Confirm Rollback Snapshot Virtual Disk dialog is displayed161 Canceling a Snapshot Rollback162 163 Configuration Premium Feature- Virtual Disk Copy164 Types of Virtual Disk CopiesOffline Copy 165 Online Copy166 Creating a Virtual Disk Copy for an Mscs Shared DiskVirtual Disk Read/Write Permissions 167 Virtual Disk Copy Restrictions168 Creating a Virtual Disk CopyBefore you Begin 169 Virtual Disk Copy and Modification OperationsCreate Copy Wizard Failed Virtual Disk Copy170 Preferred RAID Controller Module OwnershipFailed RAID Controller Module Copy Manager171 Copying the Virtual Disk172 Storage Array Performance During Virtual Disk Copy173 Setting Copy PriorityStopping a Virtual Disk Copy Select Change→ Copy Priority174 Recopying a Virtual DiskPreparing Host Servers to Recopy a Virtual Disk 175 Re-Copying a Virtual Disk176 Removing Copy PairsSelect Copy→ Re-Copy Select Copy→ Remove Copy Pairs177 178 179 Configuration Device Mapper Multipath for Linux180 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 Blacklist Local Drive in Multi-path Driver Create a File System on a Device Mapper PartitionMount a Device Mapper Partition Ready for Use185 Important Information About Special Partitions186 Device Mapper Commands Descriptions187 Limitations and Known IssuesQuestion Answer Troubleshooting188 189 Downloading RAID Controller and Nvsram Packages190 Downloading Both RAID Controller and Nvsram Firmware191 Click Transfer192 Downloading Only Nvsram Firmware193 Select Tools→ Upgrade RAID Controller Module FirmwareUpgrade RAID Controller Module Firmware window is displayed 194 195 Downloading Physical Disk Firmware196 197 AMW, select Advanced→ Maintenance→ Download→ EMM FirmwareDownloading MD1200 Series Expansion Module EMM Firmware Download Environmental EMM Firmware dialog is displayed198 Media Errors and Unreadable SectorsSelf-Monitoring Analysis and Reporting Technology Smart 199 200 201 Management Installing Array ComponentsRecommended Tools 202 Installing the Front BezelFront Bezel Optional Removing the Front Bezel203 Safety Models AMT, E03J, and E04JHard Drives Removing a Hard-Drive Blank204 Installing a Hard-Drive BlankRemoving a Hard Drive 205 Removing and Installing a Hard Drive206 Installing a Hard Drive207 Removing a Hard Drive From a Hard-Drive Carrier208 209 Installing a Hard Drive Into a Hard-Drive CarrierRAID Controller Module Removing a RAID Controller Module Blank210 Installing a RAID Controller Module Blank211 Removing a RAID Controller Module212 Installing a RAID Controller ModuleOpening the RAID Controller Module 213 Closing the RAID Controller Module214 RAID Controller Module Backup Battery UnitRemoving the RAID Controller Module Backup Battery Unit 215 Installing the RAID Controller Module Backup Battery Unit216 Power Supply/Cooling Fan ModuleRemoving a Power Supply/Cooling Fan Module 217 Installing a Power Supply/Cooling Fan Module218 Control PanelRemoving the Control Panel 219 220 Installing the Control Panel221 BackplaneRemoving the Backplane 222 17. Removing and Installing the Backplane-PowerVault MD3220 16. Removing and Installing the Backplane-PowerVault MD3200224 Installing the Backplane225 Management Firmware InventoryViewing the Firmware Inventory 226 Management System Interfaces Microsoft ServicesVirtual Disk Service Volume Shadow-Copy Service228 229 Troubleshooting Your Storage Array SoftwareStart-Up Routine Device Health ConditionsStatus Icon Description On the Setup tab, select Manage a Storage Array230 Additional Status Icons Description 231232 Storage Array Support Data233 Automatically Collect the Support Bundle DataEnter the Execution summary 234 Collecting the Physical Disk DataEvent Log 235 Recovery Guru236 Storage Array ProfileSelect Storage Array→ View→ Profile 237 238 Viewing the Logical AssociationsViewing the Physical Associations 239 Finding Nodes240 Using Go ToSelect Find all free capacity nodes Click Find Next241 Recovering From an Unresponsive Storage Array Condition242 243 244 Locating a Physical Disk245 Locating an Expansion EnclosureSelect Physical Disk→ Blink→ Expansion Enclosure 246 Capturing the State Information247 SMrepassist Utility248 Recovering From an Unidentified Storage ArrayUnidentified Devices 249 250 251 Starting or Restarting the Host Context Agent Software252 253 Troubleshooting Your ArrayTroubleshooting Loss of Communication Troubleshooting External Connections254 Troubleshooting Power Supply/Cooling Fan Module255 Troubleshooting Array Cooling ProblemsTroubleshooting Expansion Enclosure Management Modules 256 Troubleshooting RAID Controller Modules257 258 Troubleshooting Hard Drives259 Troubleshooting Array and Expansion Enclosure Connections260 Troubleshooting a Wet Storage Array261 Troubleshooting a Damaged ArrayConditions Critical Conditions ECC ErrorsPCI Errors Invalid Storage Array263 Noncritical Conditions264 Click All Support from Support menu Getting HelpContacting Dell Visit support.dell.com266 267 Index268 269 270 271 272

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