Dell MD3600f, MD3620F owner manual RAID Background Operations Priority

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If a redundant RAID controller module fails with an existing disk group process, the process on the failed controller is transferred to the peer controller. A transferred process is placed in a suspended state if there is an active disk group process on the peer controller. The suspended processes are resumed when the active process on the peer controller completes or is stopped.

NOTE: If you try to start a disk group process on a controller that does not have an existing active process, the start attempt fails if the first virtual disk in the disk group is owned by the other controller and there is an active process on the other controller.

RAID Background Operations Priority

The storage array supports a common configurable priority for the following RAID operations:

Background initialization

Rebuild

Copy back

Virtual disk capacity expansion

Raid level migration

Segment size migration

Disk group expansion

Disk group defragmentation

The priority of each of these operations can be changed to address performance requirements of the environment in which the operations are to be executed.

NOTE: Setting a high priority level impacts storage array performance. It is not advisable to set priority levels at the maximum level. Priority must also be assessed in terms of impact to host server access and time to complete an operation. For example, the longer a rebuild of a degraded virtual disk takes, the greater the risk for secondary disk failure.

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Planning: MD3600f Series Storage Array Terms and Concepts

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Contents Dell PowerVault MD3600f and MD3620f Storage Arrays Dell Inc Contents Cache Functions and Features Planning MD3600f Series Storage Array Terms and ConceptsVirtual Disk Operations Limit Configuration About Your Configuring Alert Notifications Configuring E-mail AlertsEnabling or Disabling the Event Monitor Moving a Host to a Different Host GroupStarting or Stopping the Host Context Agent Managing Host Port Identifiers101 111112 120132 136137 138146 148152 157Types of Virtual Disk Copies 170 171172 Virtual Disk Copy Restrictions 173Storage Array Performance During 178Stopping a Virtual Disk Copy 179 Preparing Host Servers to Recopy a 180Virtual Disk Expansion With 189 Configuration Device Mapper 219Using DM Multipathing Devices 220 Removing the Front Bezel 242 Installing the Front Bezel228 Downloading RAID ControllerPower Supply/Cooling Fan Module 257 243249 255Viewing the Firmware Inventory 271274 275Recovering From an Unresponsive Storage 284 Safety First-For You and Your Array 295Troubleshooting an SFP Transceiver 295 Troubleshooting Power Supply/Cooling 298311 Contents Introduction About This DocumentDell PowerVault Modular Disk Storage Manager MD3600f Series Storage ArrayOther Information You May Need Introduction Planning About Your Storage Array OverviewHardware Features Front-Panel Features and IndicatorsPlanning About Your Storage Array Item Indicator, Button, or Icon Description Connector Back Panel Features and Indicators Hard-Drive Indicator Patterns Hard Drive IndicatorsPower Supply and Cooling Fan Features Drive-Status Indicator Pattern ConditionPower Indicator Codes and Features Planning RAID Controller Modules RAID Controller ModulesRAID Controller Module Connectors and Features FunctionComponent Function Battery Backup Unit RAID Controller Module-Additional FeaturesHost Channel LED Link/Rate Indications Cache Functions and Features System Password ResetStorage Array Thermal Shutdown Cache MirroringWrite-Back Cache SFP Transceivers, Fiber Optic, and SAS CablesWrite-Through Cache Fiber Optic Cable Connection Interoperability of 2 Gbps, 4 Gbps, and 8 Gbps Devices Planning MD3600f Series Storage Array Terms and Concepts Physical Disks, Virtual Disks, and Disk GroupsPhysical Disks Physical Disk StatesSelf-Monitoring Analysis and Reporting Technology Virtual Disks and Disk GroupsVirtual Disk States RAID Controller Virtual Disk States DescriptionRAID Levels RAID Level UsageRAID Virtual Disk Operations Segment SizeVirtual Disk Initialization Background Initialization Foreground InitializationConsistency Check Media VerificationCycle Time Virtual Disk Operations LimitRAID Level Migration Disk Group OperationsSegment Size Migration Virtual Disk Capacity Expansion Disk Group ExpansionDisk Group Defragmentation Disk Group Operations LimitRAID Background Operations Priority Virtual Disk Migration and Disk Roaming Disk MigrationPlanning MD3600f Series Storage Array Terms and Concepts Disk Roaming Advanced FeaturesHost Server-to-Virtual Disk Mapping Host Types Snapshot Virtual DisksSnapshot Repository Virtual Disk Virtual Disk CopySource Virtual Disk Virtual Disk RecoveryTarget Virtual Disk Multi-Path Software Using Snapshot and Disk Copy TogetherPreferred and Alternate Controllers and Paths Load Balancing Virtual Disk OwnershipMonitoring MD3600f Series System Performance Planning MD3600f Series Storage Array Terms and Concepts Performance Monitor Table Description Column Headings Planning MD3600f Series Storage Array Terms and Concepts Configuration Overview User InterfaceEnterprise Management Window Inheriting the System Settings Array Management WindowConfiguration Overview Out-of-Band Management In-Band ManagementStorage Arrays Adding Storage ArraysManual Addition of a Storage Array Automatic Discovery of Storage ArraysSelect Edit→ Add Storage Array Setting Up Your Storage Array Locating Storage Arrays Naming or Renaming Storage ArraysAMW, select Storage Array→ Blink→ Storage Array Stop All IndicationsAMW Setup tab, select Rename Storage Array Name/Rename Storage Arrays dialog is displayedSetting a Password Type the New passwordPassword Guidelines Viewing Storage Array ConnectionsAdding/Editing a Comment to an Existing Storage Array Removing Storage ArraysSelect Edit→ Comment Select Edit→ Remove→ Storage ArrayEnabling Premium Features Failover Alert DisplayChanging Expansion Enclosure ID Number Changing the Cache Settings on the Storage ArrayChange→ Enclosure ID Configuring Alert Notifications Select Configure AlertsChanging the Enclosure Order in the Physical Pane 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 Enabling or Disabling the Event Monitor WindowsLinux Select Action→ PropertiesConfiguration About Your Host Configuring Host AccessUsing the Mappings Tab Defining a HostSelect Mappings→ Define→ Host Managing Host Groups Removing Host AccessSelect Mappings→ Remove Creating a Host Group Select Mappings→ Define→ Host GroupAdding a Host to a Host Group Removing a Host From a Host GroupRemoving a Host Group Moving a Host to a Different Host GroupSelect Mappings→ Move Starting or Stopping the Host Context Agent Host TopologyLinux Windows Data Path ProtectionClick Action→ Start Managing Host Port Identifiers Add Host Port Identifier dialog is displayed Configuration About Your Host 100 Creating Disk Groups and Virtual Disks 101Introduction Create Disk Group window is displayed Creating Disk Groups102 103 Creating Virtual Disks Locating a Disk Group104 105 Changing the Virtual Disk Modification Priority Map later Using Mappings View106 Changing the Virtual Disk Cache Settings 107108 Changing the Segment Size of a Virtual Disk 109Select Virtual Disk→ Change→ Segment Size Changing the I/O Type110 File system typical Database Multimedia Custom Choosing an Appropriate Physical Disk Type111 Physical Disk Security With Self Encrypting Disk 112Shows how to interpret the security status of a disk group 113Creating a Security Key 114Click Create Key 115Changing a Security Key 116Click Change Key Saving a Security Key117 Validate Security Key 118Erasing Secure Physical Disks Unlocking Secure Physical Disks119 Select Physical disk→ Hot Spare Coverage Configuring Hot Spare Physical Disks120 Click Unassign Hot Spare Physical Disk Options window is displayed121 Hot Spares and Rebuild Global Hot SparesHot Spare Operation 122Hot Spare Drive Protection Enclosure Loss Protection123 124 Criteria for Enclosure Loss Protection RAID LevelHost-to-Virtual Disk Mapping 125Creating Host-to-Virtual Disk Mappings 126Mapping Modifying and Removing Host-to-Virtual Disk Mapping127 Changing Controller Ownership of the Virtual Disk 128Select Virtual Disk→ Change→ Ownership/Preferred Path Removing Host-to-Virtual Disk Mapping129 Select Disk Group→ Change→ Ownership/Preferred Path Changing the RAID Level of a Disk Group130 Select Disk Group→ Change→ RAID Level Removing a Host-to-Virtual Disk Mapping Using Linux Dmmp131 132 Restricted MappingsMapping Restrictions Operating System Highest LUN 133 134 135 Changing the RAID Level of a Disk Group 136Storage Partitioning 137Select Disk Group→ Add Free Capacity Physical Disks Disk Group and Virtual Disk Expansion138 Virtual Disk Expansion Using Free Capacity139 Using Unconfigured Capacity Disk Group MigrationExport Disk Group Non-Exportable ComponentsExporting a Disk Group Import Disk Group141 Non-Importable Components Importing a Disk Group142 Storage Array Media Scan Changing Media Scan Settings143 Suspending the Media Scan 144Configuration Premium Feature- Snapshot Virtual Disks 145Common Reasons for Scheduling a Snapshot Virtual Disk Scheduling a Snapshot Virtual Disk146 Guidelines for Creating Snapshot Schedules 147Creating a Snapshot Virtual Disk Using the Simple Path Enabling and Disabling Snapshot SchedulesScheduled Snapshot Icons 148About the Simple Path 149150 Select Virtual Disk→ Snapshot→ Create. or 151About the Advanced Path Creating a Snapshot Virtual Disk Using the Advanced Path152 153 154 155 Creating the Snapshot Using the Advanced Path 156Specify Virtual Disk Parameters window is displayed Specifying Snapshot Virtual Disk Names157 158 Snapshot Repository Capacity 159Click Add Physical Disks 160Add Physical Disks window closes 161Disabling a Snapshot Virtual Disk 162Preparing Host Servers to Re-create a Snapshot Virtual Disk 163Re-creating Snapshot Virtual Disks Snapshot RollbackSelect Virtual Disk→ Snapshot→ Re-create 164Rules and Guidelines for Performing a Snapshot Rollback 165Command Line Options Protecting Against a Failed Snapshot RollbackPrevious Versions of the MD Storage Manager Starting a Snapshot RollbackResuming a Snapshot Rollback RollbackConfirm Rollback Snapshot Virtual Disk dialog is displayed 167Canceling a Snapshot Rollback 168183 184 Configuration Premium Feature- Virtual Disk Copy 169Offline Copy Types of Virtual Disk Copies170 Online Copy 171Virtual Disk Read/Write Permissions Creating a Virtual Disk Copy for an Mscs Shared Disk172 Virtual Disk Copy Restrictions 173Before You Begin Creating a Virtual Disk Copy174 Virtual Disk Copy and Modification Operations Create Copy WizardFailed Virtual Disk Copy 175Preferred RAID Controller Module Ownership Failed RAID Controller ModuleCopy Manager 176Copying the Virtual Disk 177Setting Copy Priority Storage Array Performance During Virtual Disk CopyAMW, select Virtual Disk→ Copy Manager 178Stopping a Virtual Disk Copy Recopying a Virtual DiskSelect Change→ Copy Priority 179Preparing Host Servers to Recopy a Virtual Disk 180Select Copy→ Re-Copy Re-Copying a Virtual Disk181 Select Copy→ Remove Copy Pairs Removing Copy Pairs182 Configuration Premium Feature- Remote Replication 185Replication Repository Virtual Disks Activating Remote Replication186 Primary and Secondary Virtual Disk Pairs RAID Levels for Replication Repository Virtual Disks187 Storage Partitioning With Remote Replication Using Remote Replication With Other Features188 Snapshot Virtual Disk With Remote Replication Virtual Disk Copy With Remote ReplicationVirtual Disk Expansion With Remote Replication 189Required Switch Zoning Configurations Switch CascadingZoning Guidelines for Remote Replication 190Setting Up and Managing Remote Replication Journaling File Systems and Remote ReplicationPrerequisites 191192 Completed Activate Remote Replication message is displayed Preview Activate Remote Replication wizard is displayed193 Creating a Remote Replication 194Selecting the Secondary Virtual Disk Setting the Write Mode195 Setting Synchronization Priority and Synchronization Method 196Completing the Remote Replication 197RAID Controller Module Ownership/Preferred Path 198Viewing the Storage Array Profile 199Viewing the Properties Pane Viewing Logical Elements of the Secondary Virtual DiskSelect View Associated Logical Elements 200201 Changing Write Mode and Consistency Group Membership Write Mode and Consistency Group Membership IconStatusVirtual Disk Status Icons 202Select Change→ Write Mode 203Normally Synchronized Virtual Disks Resynchronizing Virtual Disks204 Changing Synchronization Priority and Method 205206 Unsynchronized Virtual Disks 207Manually Resynchronizing Virtual Disks Automatically Resynchronizing Virtual Disks208 209 Suspending a Remote Replication 210About Resumed Remote Replications Resuming a Remote Replication211 Select Test Replication Communication 212Deleting a Primary Virtual Disk 213Deleting a Secondary Virtual Disk 214Removing a Remote Replication From a Storage Array 215Deactivating the Remote Replication on the Storage Array 216Disabling the Remote Replication Premium Feature 217218 Configuration Device Mapper Multipath for Linux 219Prerequisites Using DM Multipathing Devices220 Scan for Newly Added Virtual Disks Device Mapper Configuration Steps221 222 Add a New Partition to Device Mapper Create a New fdisk Partition on a Multipath Device Node223 Create a File System on a Device Mapper Partition Mount a Device Mapper PartitionReady for Use 224Important Information About Special Partitions Blacklist Local Drive in Multi-path Driver225 Device Mapper Commands Descriptions 226Limitations and Known Issues 227228 TroubleshootingQuestion Answer Downloading RAID Controller and Nvsram Packages 229Downloading Both RAID Controller and Nvsram Firmware 230Click Transfer Select Tools→ Upgrade RAID Controller Module Firmware231 Downloading Only Nvsram Firmware 232233 234 Downloading Physical Disk Firmware 235Download Physical Disk Introduction window is displayed 236AMW, select Advanced→ Maintenance→ Download→ EMM Firmware Downloading MD1200 Series Expansion Module EMM FirmwareDownload Environmental EMM Firmware dialog is displayed 237Self-Monitoring Analysis and Reporting Technology Smart 238Media Errors and Unreadable Sectors 239240 Recommended Tools 241Installing the Front Bezel Front Bezel OptionalRemoving the Front Bezel 242Safety Models AMT, E03J, and E04J Hard DrivesRemoving a Hard-Drive Blank 243Removing a Hard Drive Installing a Hard-Drive Blank244 Removing and Installing a Hard Drive 245Installing a Hard Drive 246Removing a Hard Drive From a Hard-Drive Carrier 247248 Installing a Hard Drive Into a Hard-Drive Carrier RAID Controller ModuleRemoving a RAID Controller Module Blank 249Installing a RAID Controller Module Blank 250Removing a RAID Controller Module 251Installing a RAID Controller Module 252Opening the RAID Controller Module 253Closing the RAID Controller Module 254Removing the RAID Controller Module Backup Battery Unit RAID Controller Module Backup Battery Unit255 Installing the RAID Controller Module Backup Battery Unit 256Removing a Power Supply/Cooling Fan Module Power Supply/Cooling Fan Module257 Installing a Power Supply/Cooling Fan Module 258Removing the Control Panel Control Panel259 260 Installing the Control Panel 261Removing the Backplane Backplane262 263 16. Removing and Installing the Backplane-PowerVault MD3600f 17. Removing and Installing the Backplane-PowerVault MD3620fInstalling the Backplane 265266 Viewing the Firmware Inventory 267268 Microsoft Services Virtual Disk ServiceVolume Shadow-Copy Service 269270 Start-Up Routine Device Health Conditions271 Start-Up Routine Indications Look/Listen for Action272 On the Setup tab, select Manage a Storage ArrayStatus Icon Description 273 Additional Status Icons DescriptionStorage Array Support Data 274Enter the Execution summary Automatically Collect the Support Bundle Data275 Collecting the Physical Disk Data 276Event Log 277Storage Array Profile Recovery Guru278 279 Select View→ Associated Logical Elements. or Viewing the Logical Associations280 Finding Nodes Viewing the Physical Associations281 Select Find all free capacity nodes 282Using Go To Click Find NextSelect View→ Go To→ Snapshot Virtual Disk Select View→ Go To→ Snapshot Repository Virtual DiskRecovering From an Unresponsive Storage Array Condition Select View→ Go To→ Source Virtual DiskSelect View→ Go To→ Target Virtual Disk 284285 286 Locating an Expansion Enclosure Locating a Physical Disk287 Select Physical Disk→ Blink→ Expansion Enclosure Capturing the State Information288 SMrepassist Utility 289Unidentified Devices Recovering From an Unidentified Storage Array290 291 292 Starting or Restarting the Host Context Agent Software 293294 Troubleshooting an SFP Transceiver Troubleshooting Loss of Communication295 296 297 Removing an SFP ModuleTroubleshooting Power Supply/Cooling Fan Module Troubleshooting External Connections298 Troubleshooting Array Cooling Problems 299Troubleshooting Expansion Enclosure Management Modules 300Troubleshooting RAID Controller Modules 301Troubleshooting Hard Drives 302Troubleshooting Array and Expansion Enclosure Connections 303Troubleshooting a Wet Storage Array 304Troubleshooting a Damaged Array 305ECC Errors ConditionsInvalid Storage Array 306PCI Errors Critical ConditionsNoncritical Conditions 307308 Contacting Dell Locating Your System Service Tag309 Documentation Feedback 310Index 312 313 314 315 316 317 318
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MD3620F, MD3600f specifications

Dell's MD3620F and MD3600F storage arrays are designed for businesses seeking dependable, high-performance storage solutions tailored to meet the demands of modern data management. These models offer a blend of scalability, efficiency, and advanced features, making them well-suited for a range of applications, from virtual environments to critical database operations.

One of the primary features of the MD3620F and MD3600F is their support for a hybrid storage architecture. This approach allows organizations to combine flash storage with traditional hard disk drives (HDDs) to optimize performance and cost. The MD3620F focuses heavily on all-flash configurations, delivering exceptional speed and lower latency, ideal for I/O-intensive workloads.

Scalability is another hallmark of these storage solutions. The MD3600F allows users to scale up to 120 drives, providing robust capacity to meet growing data needs. The MD3620F is engineered for environments where data availability and speed are paramount, with support for high IOPS (Input/Output Operations Per Second) and consistent performance under stress.

In terms of data management, both systems integrate with Dell’s proprietary software, which enhances operational efficiency through features like automated tiering. This technology optimizes data placement between different storage types based on access frequency, ensuring that hot data is readily available while reducing costs associated with less critical data.

Reliability is crucial for businesses that depend on their storage systems. The MD3620F and MD3600F come equipped with advanced data protection mechanisms, such as RAID support, which safeguards against data loss, and snapshot capabilities that provide point-in-time copies of data. Moreover, these solutions include hot-swappable components, ensuring minimal downtime for maintenance and repairs.

Connectivity is also a strong suit of these storage arrays. They support multiple connectivity options, including SAS and iSCSI, allowing for flexible integration into existing IT infrastructures. This adaptability enhances their appeal to a wide range of enterprise environments.

In summary, the Dell MD3620F and MD3600F stand out as robust storage solutions with a combination of hybrid and all-flash configurations, scalability, advanced data management tools, and enhanced reliability features. These characteristics make them ideal for organizations looking to enhance their data storage capabilities while maintaining high performance and efficiency.