Dell MD3200i, MD3220i owner manual Host Types, Snapshot Virtual Disks

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•Host server-to-virtual disk mappings are shared between RAID controller modules in the storage array.

•A unique LUN must be used by a host group or host server to access a virtual disk.

•Not every operating system has the same number of LUNs available for use.

Host Types

A host server is a server that accesses a storage array. Host servers are mapped to the virtual disks and use one or more iSCSI initiator ports. Host servers have the following attributes:

•Host name—A name that uniquely identifies the host server.

•Host group (used in Cluster solutions only)—Two or more host servers associated together to share access to the same virtual disks.

This host group is a logical entity you can create in MDSM. All host servers in a host group must be running the same operating system.

•Host type—The operating system running on the host server.

Snapshot Virtual Disks

Asnapshot is a point-in-time image of a virtual disk. The snapshot provides an image of the virtual disk at the time the snapshot was created. You create a snapshot so that an application (for example, a backup application) can access the snapshot and read the data while the source virtual disk remains online and user-accessible. When the backup is completed, the snapshot virtual disk is no longer needed. You can create up to four snapshots per virtual disk.

Snapshots are used to recover previous versions of files that have changed since the snapshot was taken. Snapshots are implemented using a copy-on- write algorithm, which makes a backup copy of data the instant an error occurs. Data on a virtual disk is copied to the snapshot repository before it is modified. Snapshots are instantaneous and take up less overhead than a full physical copy process.

Planning: MD3200i Series Storage Array Terms and Concepts

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Contents Dell PowerVault MD3200i and MD3220i Storage Arrays May Contents Planning RAID Controller Modules Cache Functions and FeaturesVirtual Disk Operations Limit Out-of-Band and In-Band Management Configuring Alert NotificationsSetting the Storage Array RAID Edit, Remove, or Rename Host TopologyEnabling or Disabling the Event Monitor Managing Host Port Identifiers 103113 132 Configuring Hot Spare Physical Disks 121124 Host-to-Virtual Disk Mapping 126146 139140 141Creating a Virtual Disk Copy for ContentsDisabling a Snapshot Virtual Disk Re-creating a Snapshot Virtual Disk177 Using DM Multipathing Devices 178Limitations and Known Issues 184 174199 Downloading MD1200 Series Expansion197 198Viewing the Firmware Inventory 221 Power Supply/Cooling Fan Module 211215 217231 Recovering From an Unresponsive229 Collecting the Physical Disk Data 230258 250Getting Help Contacting Dell Index Contents About This Document IntroductionOther Information You May Need Dell PowerVault MD3200i Series Storage ArrayDell PowerVault Modular Disk Storage Manager Dell PowerVault Modular Disk Configuration UtilityIntroduction 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 Item LED Type Icon Description Power Indicator CodesRAID Controller Modules Planning RAID Controller ModulesMD3200i Series iSCSI RAID Controller Module RAID Controller Module Connectors and FeaturesLED Component FunctionItem Component Function RAID Controller Module-Additional FeaturesBattery Backup Unit Storage Array Thermal ShutdownWrite-Back Cache Cache Functions and FeaturesSystem Password Reset Cache MirroringWrite-Through Cache Physical Disks Physical Disks, Virtual Disks, and Disk GroupsPhysical Disk States Virtual Disks and Disk Groups Self-Monitoring Analysis and Reporting TechnologyRAID Levels Virtual Disk StatesRAID Controller Virtual Disk States Description RAID RAID Level UsageSegment Size Foreground Initialization Virtual Disk OperationsVirtual Disk Initialization Background InitializationMedia Verification Cycle TimeVirtual Disk Operations Limit Disk Group Operations RAID Level MigrationSegment Size Migration Disk Group Operations Limit Virtual Disk Capacity ExpansionDisk Group Expansion Disk Group DefragmentationRAID Background Operations Priority Disk Migration Virtual Disk Migration and Disk RoamingPlanning MD3200i Series Storage Array Terms and Concepts Advanced Features Disk RoamingHost Server-to-Virtual Disk Mapping Snapshot Virtual Disks Host TypesVirtual Disk Copy Snapshot Repository Virtual DiskTarget Virtual Disk Virtual Disk RecoveryUsing Snapshot and Disk Copy Together Source Virtual DiskPreferred and Alternate Controllers and Paths Multi-Path SoftwareVirtual Disk Ownership Load BalancingMonitoring MD3200i Series System Performance Planning MD3200i Series Storage Array Terms and Concepts Performance Monitor Table Description Column Headings User Interface Configuration OverviewEnterprise Management Window Array Management Window Inheriting the System SettingsSelect Tools→ Inherit System Settings Select Inherit system settings for color and fontConfiguration 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 Locating Storage Arrays Name/Rename Storage Arrays dialog appears Naming or Renaming Storage ArraysSetting a Password PasswordType the New password Viewing Storage Array Connections Password GuidelinesSelect Edit→ Remove→ Storage Array Adding/Editing a Comment to an Existing Storage ArrayRemoving Storage Arrays Select Edit→ CommentEnabling Premium Features Changing the Cache Settings on the Storage ArrayFailover Alert Display Changing Expansion Enclosure ID Numbers Changing the Enclosure Order in the Physical PaneAMW, select Storage Array→ Change→ Enclosure Order Select All storage arrays Configuring Alert NotificationsConfiguring E-mail Alerts Select Configure AlertsConfiguration About Your Storage Array Configuration About Your Storage Array Configuring Snmp Alerts Battery Settings Setting the Storage Array RAID Controller Module Clocks Configuration About Your Storage Array Enter the Target Chap secret Configuration Using iSCSIChanging the iSCSI Target Authentication Select Manage iSCSI SettingsCreating Chap Secrets Entering Mutual Authentication PermissionsSelect the Mutual Authentication tab Click OK in the Manage iSCSI Settings windowValid Ascii Characters for Chap Secrets Initiator Chap SecretTarget Chap Secret Valid Characters for Chap SecretsSelect the Target Discovery tab Changing the iSCSI Target Discovery SettingsChanging the iSCSI Target Identification Select the Target Identification tabConfiguring the iSCSI Host Ports Configuration Using iSCSI Advanced iSCSI Host Port Settings Description Advanced iSCSI Host Ports SettingsViewing or Ending an iSCSI Session Click Set Baseline Viewing iSCSI Statistics and Setting Baseline StatisticsMappings→ Move Edit, Remove, or Rename Host TopologyEnabling or Disabling the Event Monitor Configuration Event MonitorLinux WindowsConfiguring Host Access Configuration About Your HostUsing the Mappings Tab Defining a HostSelect Mappings→ Define→ 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 GroupStarting or Stopping the Host Context Agent LinuxWindows Data Path Protection Click Action→ Start100 Managing Host Port Identifiers Add Host Port Identifier dialog appears101 102 Configuration Disk Groups and Virtual Disks Creating Disk Groups and Virtual Disks103 Creating Disk Groups Introduction Create Disk Group window is displayed104 105 Creating Virtual Disks Locating a Disk Group107 108 Customize settingsMap later Using Mappings View Changing the Virtual Disk Modification PriorityChanging the Virtual Disk Cache Settings Toolbar, select Virtual Disk→ Change→ Cache Settings109 110 Changing the Segment Size of a Virtual Disk Select Virtual Disk→ Change→ Segment Size111 Changing the I/O Type File system typical Database Multimedia Custom112 Choosing an Appropriate Physical Disk Type Physical Disk Security with Self Encrypting Disk113 114 115 116 Creating a Security KeyChanging a Security Key Click Create Key117 Confirm Change Security Key window is displayed Click Change Key118 119 Saving a Security KeyUnlocking Secure Physical Disks Erasing Secure Physical Disks120 Configuring Hot Spare Physical Disks Select Physical disk→ Hot Spare Coverage121 Hot Spare Physical Disk Options window is displayed Click Unassign122 Hot Spare Drive Protection Hot Spares and RebuildGlobal Hot Spares Hot Spare Operation124 Enclosure Loss ProtectionCriteria for Enclosure Loss Protection RAID Level 125Host-to-Virtual Disk Mapping Creating Host-to-Virtual Disk Mappings126 127 128 Modifying and Removing Host-to-Virtual Disk Mapping129 Changing Controller Ownership of the Virtual DiskRemoving Host-to-Virtual Disk Mapping Select Virtual Disk→ Change→ Ownership/Preferred Path130 Select Disk Group→ Change→ Ownership/Preferred PathChanging the RAID Level of a Disk Group Select Disk Group→ Change→ RAID Level131 Restricted Mappings 132Operating System Highest LUN 133 134 135 Changing the RAID Level of a Disk Group136 Storage PartitioningDisk Group and Virtual Disk Expansion Select Disk Group→ Add Free Capacity Physical Disks137 138 Using Free CapacityUsing Unconfigured Capacity Virtual Disk ExpansionNon-Exportable Components Disk Group MigrationExport Disk Group Exporting a Disk GroupImport Disk Group Importing a Disk Group140 Storage Array Media Scan Non-Importable Components141 142 Changing Media Scan Settings143 Suspending the Media Scan144 145 Configuration Premium Feature- Snapshot Virtual DisksCreating a Snapshot Virtual Disk Using the Simple Path About the Simple Path146 147 148 Creating a Snapshot Virtual Disk Using the Advanced Path About the Advanced Path149 150 151 152 Creating the Snapshot Using the Advanced Path Specify Virtual Disk Parameters window is displayed153 154 Specifying Snapshot Virtual Disk Names155 156 Snapshot Repository Capacity157 Click Add Physical Disks158 Add Physical Disks window closes159 Re-creating Snapshot Virtual DisksDisabling a Snapshot Virtual Disk Select Virtual Disk→ Snapshot→ Re-create160 Preparing Host Servers to Re-create a Snapshot Virtual DiskRe-creating a Snapshot Virtual Disk Select Virtual Disk → Snapshot→ Re-create161 162 163 Configuration Premium Feature- Virtual Disk Copy164 Creating a Virtual Disk Copy for an Mscs Shared DiskVirtual Disk Read/Write Permissions Virtual Disk Copy Restrictions165 166 Creating a Virtual Disk Copy167 Before you BeginVirtual Disk Copy and Modification Operations Create Copy Wizard168 Preferred RAID Controller Module OwnershipFailed RAID Controller Module Failed Virtual Disk CopyCopy Manager Copying the Virtual Disk169 Setting Copy Priority Storage Array Performance During Virtual Disk Copy170 Stopping a Virtual Disk Copy Select Change→ Copy Priority171 Recopying a Virtual Disk Preparing Host Servers to Recopy a Virtual Disk172 Recopying the Virtual Disk Select Copy→ Re-Copy173 174 Removing Copy Pairs175 176 177 Configuration Device Mapper Multipath for LinuxUsing DM Multipathing Devices Prerequisite Steps178 Device Mapper Configuration Steps Scan for newly added Virtual Disks179 180 Create a New fdisk Partition on a Multipath Device Node Add a new Partition to Device Mapper181 182 Create a file system on a Device Mapper PartitionMount a Device Mapper Partition Ready For UseLinux Host Server Reboot Best Practices Important Information About Special Partitions183 Limitations and Known Issues Useful Device Mapper Commands Descriptions184 Troubleshooting 185Question Answer QuestionAnswer 186187 Downloading RAID Controller and Nvsram Packages188 Downloading Both RAID Controller and Nvsram Firmware189 Click Transfer190 Downloading Only Nvsram FirmwareSelect Tools→ Upgrade RAID Controller Module Firmware Upgrade RAID Controller Module Firmware window appears191 192 Downloading Physical Disk Firmware193 194 Downloading MD1200 Series Expansion Module EMM FirmwareAMW, select Advanced→ Maintenance→ Download→ EMM Firmware Download Environmental EMM Firmware dialog appears195 Media Errors and Unreadable Sectors Self-Monitoring Analysis and Reporting Technology Smart196 Management Installing Array Components Recommended Tools197 198 Installing the Front BezelFront Bezel Optional Removing the Front Bezel199 Safety Models AMT, E03J, and E04JHard Drives Removing a Drive BlankInstalling a Drive Blank Removing a Hard Drive200 201 Removing and Installing a Hard DriveInstalling a Hard Drive Removing a Hard Drive From a Hard-Drive Carrier202 203 204 205 Installing a Hard Drive Into a Drive CarrierRAID Controller Module Removing a RAID Controller Module Blank206 Installing a RAID Controller Module Blank207 Removing a RAID Controller ModuleInstalling a RAID Controller Module Opening the RAID Controller Module208 209 Closing the RAID Controller ModuleRAID Controller Module Backup Battery Unit Removing the RAID Controller Module Backup Battery Unit210 211 Power Supply/Cooling Fan ModuleInstalling the RAID Controller Module Backup Battery Unit Removing a Power Supply/Cooling Fan Module212 213 214 Installing a Power Supply/Cooling Fan ModuleControl Panel Removing the Control Panel215 216 Installing the Control PanelBackplane Removing the Backplane217 218 17. Removing and Installing the Backplane-PowerVault MD3220i 16. Removing and Installing the Backplane-PowerVault MD3200i220 Installing the BackplaneManagement Firmware Inventory Viewing the Firmware Inventory221 222 Management System Interfaces Microsoft ServicesVirtual Disk Service Volume Shadow-Copy Service224 225 Troubleshooting Your Storage Array SoftwareStart-Up Routine Device Health ConditionsOn the Setup tab, select Manage a Storage Array 226Status Icon Description 227 Additional Status Icons Description 228229 Storage Array Support DataAutomatically Collect the Support Bundle Data Enter the Execution summary230 Collecting the Physical Disk Data231 Event Log232 Recovery GuruStorage Array Profile Select Storage Array→ View→ Profile233 Viewing the Logical Associations Viewing the Physical Associations234 235 Finding Nodes236 Using Go ToSelect Find all free capacity nodes Click Find Next237 Recovering From an Unresponsive Storage Array Condition238 239 240 Locating a Physical DiskLocating an Expansion Enclosure Select Physical Disk→ Blink→ Expansion Enclosure241 242 Capturing the State Information243 SMrepassist UtilityRecovering From an Unidentified Storage Array Unidentified Devices244 245 246 Starting or Restarting the Host Context Agent Software247 248 249 Troubleshooting Your ArrayTroubleshooting Loss of Communication Troubleshooting External Connections250 Troubleshooting Power Supply/Cooling Fan ModuleTroubleshooting Array Cooling Problems Troubleshooting Expansion Enclosure Management Modules251 252 253 Troubleshooting RAID Controller Modules254 Troubleshooting Hard DrivesTroubleshooting Array and Expansion Enclosure Connections Troubleshooting a Wet Storage Array255 256 Troubleshooting a Damaged Array257 ECC ErrorsConditions Invalid Storage Array258 PCI ErrorsCritical Conditions Noncritical ConditionsClick All Support from Support menu Getting HelpContacting Dell Visit support.dell.com260 261 Index262 263 264 265 266 267 268
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MD3200i, MD3220i specifications

The Dell MD3220i and MD3200i are part of Dell's extensive line of modular storage solutions, designed to support organizations in optimizing their data management and scalability requirements. These models offer reliable performance and flexible features, making them suitable for various workloads including virtualization, cloud storage, and disaster recovery.

One of the standout features of the MD3220i and MD3200i is their support for iSCSI storage networking. By utilizing the Internet Small Computer Systems Interface (iSCSI) protocol, these systems provide organizations with a cost-effective way to connect their storage over existing network infrastructure, enabling efficient data transfers and management.

Both models are equipped with dual controllers that ensure high availability and failover capabilities, which are crucial for meeting uptime requirements in mission-critical environments. The dual controllers also facilitate load balancing and increase overall system performance, as they allow multiple paths to the storage, enhancing I/O performance.

Scalability is another key characteristic of the MD3220i and MD3200i. These storage arrays can be expanded to meet growing storage demands, supporting up to 240TB of raw capacity with up to 16 additional expansion enclosures. This flexibility allows organizations to start with a smaller configuration and grow their storage capabilities without a complete overhaul of the existing infrastructure.

The units also support multiple disk types, including traditional spinning disks, solid-state drives (SSDs), and a combination of both. This versatility enables users to tailor storage configurations to their specific performance and budgetary needs. Furthermore, the systems feature advanced data management technologies such as snapshots and remote replication, providing essential tools for data protection.

With their ease of management, the MD3220i and MD3200i are designed for straightforward configuration and operation. The intuitive management interfaces allow IT professionals to monitor performance, configure storage, and manage data effectively, ensuring businesses can maintain optimal system availability.

In summary, the Dell MD3220i and MD3200i are robust, scalable, and versatile storage solutions that cater to diverse organizational needs. Their integrated technologies, such as iSCSI support, dual controller architecture, and advanced data management features, make them an ideal choice for modern data centers looking to enhance storage capabilities while ensuring reliability and performance.
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