250 | Dell MD3200, MD3220 manual

cExamine the ethernet cables to make sure that you cannot see any damage and that they are tightly connected.

dMake sure that the applicable network configuration tasks are done (for example, the IP addresses are assigned to each controller).

5Make sure that the controller firmware is compatible with MDSM on your management station. If the controller firmware was upgraded, the MDSM may not have access to the storage array. A new version of MDSM may be needed to manage the storage array with the new version of the controller firmware.

If this problem exists, see support.dell.com.

6Look to see if there is too much network traffic to one or more controllers. This problem corrects itself because the MDSM tries to re-establish communication with the controllers in the storage array at regular times. If the storage array was unresponsive and a subsequent try to connect to the storage array succeeds, the storage array becomes responsive.

7For an out-of-band storage array, look to see if management operations are taking place on the storage array from other storage management stations. The type of management operations being done and the number of management sessions taking place together establish the number of TCP/IP connections made to a controller. When the maximum number of TCP/IP connections are made, the controller stops responding. This problem corrects itself because after some TCP/IP connections complete, the controller then becomes responsive to other connection tries.

8If the storage array is still unresponsive, problems may exist with the controllers.

If these problems exist, see support.dell.com.

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Troubleshooting: Your Storage Array Software

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Dell MD3200, MD3220 owner manual 250

Contents

Dell PowerVault MD3200 and MD3220 Storage Arrays Page Contents RAID Controller Module Connectors Cache Functions and Features Virtual Disk Operations Limit Configuring Alert Notifications Out-of-Band and In-Band Management Managing Host Port Identifiers Enabling or Disabling the Event MonitorCreating Disk Groups and Virtual Disks Physical Disk Security with Self Configuring Hot Spare Physical DisksHost-to-Virtual Disk Mapping 130 126129 131 146 Creating a Snapshot Virtual Disk Using 142Creating a Snapshot Virtual Disk Using 151 Types of Virtual Disk Copies 164 160161 165 176 Using DM Multipathing Devices 180174 179 202 Self-Monitoring Analysis and Reporting201 203 218 RAID Controller Module Backup Battery Unit 214Power Supply/Cooling Fan Module 216 221 233 Recovering From an Unresponsive Storage 241232 Collecting the Physical Disk Data 234 Troubleshooting Expansion Enclosure Safety First-For you and Your Array 253Troubleshooting Power Supply/Cooling 254 Troubleshooting a Damaged Array 261 Getting Help Contacting Dell Index Contents Introduction About This Document Other Information you May Need Dell PowerVault Modular Disk Storage ManagerMD3200 Series Storage Array Introduction 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 and Features 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 CopyTarget Virtual Disk Using Snapshot and Disk Copy Together Virtual Disk RecoveryMulti-Path Software Preferred and Alternate Controllers and Paths Virtual Disk Ownership Load Balancing Monitoring MD3200 Series System Performance AMW, select Storage Array→ Monitor Performance Click Settings Performance Monitor Table Description Column Headings Planning MD3200 Series Storage Array Terms and Concepts Configuration Overview User Interface Enterprise Management Window Inheriting the 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 AMW Setup tab, select Rename Storage ArrayName/Rename Storage Arrays dialog is displayed 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 Configuration About Your Storage Array Battery Settings Setting the Storage Array RAID Controller Module Clocks 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 is displayed 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 Changing the Virtual Disk Modification Priority Map later Using Mappings View100 Changing the Virtual Disk Cache Settings 101 102 Changing the Segment Size of a Virtual Disk 103 Select Virtual Disk→ Change→ Segment Size Changing the I/O Type104 File system typical Database Multimedia Custom Choosing an Appropriate Physical Disk Type105 Physical Disk Security with Self Encrypting Disk 106 Shows how to interpret the security status of a disk group 107 Creating a Security Key 108 Click Create Key 109 Confirm Change Security Key window is displayed Changing a Security Key110 Click Change Key Saving a Security Key111 Validate Security Key 112 Erasing Secure Physical Disks Unlocking Secure Physical Disks113 Select Physical disk→ Hot Spare Coverage Configuring Hot Spare Physical Disks114 Click Unassign Hot Spares and RebuildHot Spare Physical Disk Options window is displayed 115 Hot Spare Drive Protection Global Hot SparesHot Spare Operation 116 Enclosure Loss Protection 117 118 Criteria for Enclosure Loss Protection RAID Level Creating Host-to-Virtual Disk Mappings Host-to-Virtual Disk Mapping119 120 Modifying and Removing Host-to-Virtual Disk Mapping 121 Select Virtual Disk→ Change→ Ownership/Preferred Path Changing Controller Ownership of the Virtual DiskRemoving Host-to-Virtual Disk Mapping 122 Select Disk Group→ Change→ Ownership/Preferred Path 123 Select Disk Group→ Change→ RAID Level Removing a Host-to-Virtual Disk Mapping Using Linux DmmpChanging the RAID Level of a Disk Group 124 125 126 Restricted MappingsOperating System Highest LUN 127 128 Changing the RAID Level of a Disk Group 129 Storage Partitioning 130 Select Disk Group→ Add Free Capacity Physical Disks Disk Group and Virtual Disk Expansion131 Virtual Disk Expansion Using Free Capacity132 Export Disk Group Using Unconfigured CapacityDisk Group Migration Non-Exportable Components Importing a Disk Group Import Disk GroupExporting a Disk Group 134 Non-Importable Components 135 Storage Array Media Scan Changing Media Scan Settings136 Suspending the Media Scan 137 138 Configuration Premium Feature- Snapshot Virtual Disks 139 Common Reasons for Scheduling a Snapshot Virtual Disk Scheduling a Snapshot Virtual Disk140 Guidelines for Creating Snapshot Schedules 141 Scheduled Snapshot Icons Creating a Snapshot Virtual Disk Using the Simple PathEnabling and Disabling Snapshot Schedules 142 About the Simple Path 143 144 145 About the Advanced Path Creating a Snapshot Virtual Disk Using the Advanced Path146 147 148 Creating the Snapshot Using the Advanced Path 149 Specify Virtual Disk Parameters window is displayed 150 Specifying Snapshot Virtual Disk Names 151 Snapshot Repository Capacity 152 153 Add Physical Disks window closes Click Add Physical Disks154 Disabling a Snapshot Virtual Disk 155 Preparing Host Servers to Re-create a Snapshot Virtual Disk 156 Select Virtual Disk→ Snapshot→ Re-create Re-creating Snapshot Virtual DisksSnapshot Rollback 157 Rules and Guidelines for Performing a Snapshot Rollback 158 Previous Versions of the MD Storage Manager Command Line OptionsProtecting Against a Failed Snapshot Rollback Starting a Snapshot Rollback Confirm Rollback Snapshot Virtual Disk dialog is displayed Resuming a Snapshot RollbackRollback 160 Canceling a Snapshot Rollback 161 162 Configuration Premium Feature- Virtual Disk Copy 163 Offline Copy Types of Virtual Disk Copies164 Online Copy 165 Virtual Disk Read/Write Permissions Creating a Virtual Disk Copy for an Mscs Shared Disk166 Virtual Disk Copy Restrictions 167 Before you Begin Creating a Virtual Disk Copy168 Failed Virtual Disk Copy Virtual Disk Copy and Modification OperationsCreate Copy Wizard 169 Copy Manager Preferred RAID Controller Module OwnershipFailed RAID Controller Module 170 Copying the Virtual Disk 171 Storage Array Performance During Virtual Disk Copy 172 Select Change→ Copy Priority Setting Copy PriorityStopping a Virtual Disk Copy 173 Preparing Host Servers to Recopy a Virtual Disk Recopying a Virtual Disk174 Re-Copying a Virtual Disk 175 Select Copy→ Remove Copy Pairs Removing Copy PairsSelect Copy→ Re-Copy 176 177 178 Configuration Device Mapper Multipath for Linux 179 Prerequisite Steps Using DM Multipathing Devices180 Scan for Newly Added Virtual Disks Device Mapper Configuration Steps181 182 Add a New Partition to Device Mapper Create a New fdisk Partition on a Multipath Device Node183 Ready for Use Create a File System on a Device Mapper PartitionMount a Device Mapper Partition Blacklist Local Drive in Multi-path Driver Important Information About Special Partitions 185 Device Mapper Commands Descriptions 186 Limitations and Known Issues 187 188 TroubleshootingQuestion Answer Downloading RAID Controller and Nvsram Packages 189 Downloading Both RAID Controller and Nvsram Firmware 190 Click Transfer 191 Downloading Only Nvsram Firmware 192 Upgrade RAID Controller Module Firmware window is displayed Select Tools→ Upgrade RAID Controller Module Firmware193 194 Downloading Physical Disk Firmware 195 196 Download Environmental EMM Firmware dialog is displayed AMW, select Advanced→ Maintenance→ Download→ EMM FirmwareDownloading MD1200 Series Expansion Module EMM Firmware 197 Self-Monitoring Analysis and Reporting Technology Smart Media Errors and Unreadable Sectors198 199 200 Recommended Tools Management Installing Array Components201 Removing the Front Bezel Installing the Front BezelFront Bezel Optional 202 Removing a Hard-Drive Blank Safety Models AMT, E03J, and E04JHard Drives 203 Removing a Hard Drive Installing a Hard-Drive Blank204 Removing and Installing a Hard Drive 205 Installing a Hard Drive 206 Removing a Hard Drive From a Hard-Drive Carrier 207 208 Removing a RAID Controller Module Blank Installing a Hard Drive Into a Hard-Drive CarrierRAID Controller Module 209 Installing a RAID Controller Module Blank 210 Removing a RAID Controller Module 211 Opening the RAID Controller Module Installing a RAID Controller Module212 Closing the RAID Controller Module 213 Removing the RAID Controller Module Backup Battery Unit RAID Controller Module Backup Battery Unit214 Installing the RAID Controller Module Backup Battery Unit 215 Removing a Power Supply/Cooling Fan Module Power Supply/Cooling Fan Module216 Installing a Power Supply/Cooling Fan Module 217 Removing the Control Panel Control Panel218 219 Installing the Control Panel 220 Removing the Backplane Backplane221 222 16. Removing and Installing the Backplane-PowerVault MD3200 17. Removing and Installing the Backplane-PowerVault MD3220 Installing the Backplane 224 Viewing the Firmware Inventory Management Firmware Inventory225 226 Volume Shadow-Copy Service Microsoft ServicesVirtual Disk Service Management System Interfaces 228 Device Health Conditions Troubleshooting Your Storage Array SoftwareStart-Up Routine 229 230 On the Setup tab, select Manage a Storage ArrayStatus Icon Description 231 Additional Status Icons Description Storage Array Support Data 232 Enter the Execution summary Automatically Collect the Support Bundle Data233 Event Log Collecting the Physical Disk Data234 Recovery Guru 235 Select Storage Array→ View→ Profile Storage Array Profile236 237 Viewing the Physical Associations Viewing the Logical Associations238 Finding Nodes 239 Click Find Next Using Go ToSelect Find all free capacity nodes 240 Recovering From an Unresponsive Storage Array Condition 241 242 243 Locating a Physical Disk 244 Select Physical Disk→ Blink→ Expansion Enclosure Locating an Expansion Enclosure245 Capturing the State Information 246 SMrepassist Utility 247 Unidentified Devices Recovering From an Unidentified Storage Array248 249 250 Starting or Restarting the Host Context Agent Software 251 252 Troubleshooting External Connections Troubleshooting Your ArrayTroubleshooting Loss of Communication 253 Troubleshooting Power Supply/Cooling Fan Module 254 Troubleshooting Expansion Enclosure Management Modules Troubleshooting Array Cooling Problems255 Troubleshooting RAID Controller Modules 256 257 Troubleshooting Hard Drives 258 Troubleshooting Array and Expansion Enclosure Connections 259 Troubleshooting a Wet Storage Array 260 Conditions Troubleshooting a Damaged Array261 Invalid Storage Array ECC ErrorsPCI Errors Critical Conditions Noncritical Conditions 263 264 Visit support.dell.com Getting HelpContacting Dell Click All Support from Support menu 266 Index 267 268 269 270 271 272