Safety First-For you and Your Array 263, 265, 266 | Dell MD3620I

Recovering From an Unidentified Storage Array . . .	258
Starting or Restarting the	261
Host Context Agent Software	261

20 Troubleshooting: Your Array . . . . . . . . . 263

Safety First—For you and Your Array	263
Troubleshooting Storage Array Startup Failure . . . .	263
Troubleshooting Loss of Communication	263
Troubleshooting External Connections	263
Troubleshooting Power	264
Supply/Cooling Fan Module	264
Troubleshooting Array Cooling Problems	265
Troubleshooting Expansion
Enclosure Management Modules	265
Troubleshooting RAID Controller Modules	266
Troubleshooting Hard Drives	268
Troubleshooting Array and	269
Expansion Enclosure Connections	269
Troubleshooting a Wet Storage Array	269
Troubleshooting a Damaged Array	270
Troubleshooting RAID Controller Modules	271
Conditions	271
Invalid Storage Array	271
ECC Errors	271
PCI Errors	272

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Contents

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Dell MD3620I Starting or Restarting 261 Host Context Agent Software, Safety First-For you and Your Array 263, 265, 266

Contents

Dell PowerVault MD3600i and MD3620i Storage Arrays December Contents Cache Functions and Features Planning RAID Controller Modules Virtual Disk Operations Limit Configuring Alert Notifications Out-of-Band and In-Band Management Edit, Remove, or Rename Host Topology Enabling or Disabling the Event Monitor Managing Host Port Identifiers 104 103107 117 126130 Host-to-Virtual Disk Mapping 131 143 145146 147 Contents Re-Creating a Snapshot Virtual DiskCreating a Virtual Disk Copy for Virtual Disk Copy Restrictions Using DM Multipathing Devices 186 Stopping a Virtual Disk Copy 178179 Preparing Host Servers 179 Downloading Both RAID Controller 209210 211 RAID Controller Module Backup Battery Unit 222 Power Supply/Cooling Fan Module 224227 229 Recovering From an Unresponsive 237241 242 Safety First-For you and Your Array 263 Troubleshooting Power 264Troubleshooting Expansion Enclosure Management Modules 265 Troubleshooting a Damaged Array 270 272 Contents Introduction About This Document Dell PowerVault Modular Disk Configuration Utility Dell PowerVault Modular Disk Storage ManagerMD3600i Series Storage Array Other Information You May Need 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 Hard-Drive Status Indicator Pattern Condition Power Indicator Codes Power Indicator Codes Item LED Type Icon Description Planning RAID Controller Modules RAID Controller Modules RAID Controller Module Connectors and Features MD3600i Series iSCSI RAID Controller Module Item Component Function RAID Controller Module-Additional Features Battery Backup UnitStorage Array Thermal Shutdown Shutdown Threshold Type Cache Functions and Features System Password ResetCache Mirroring Write-Back Cache Write-Through Cache Planning MD3600i 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 Controller Virtual Disk States Description RAID Levels RAID Level Usage RAID Segment Size Virtual Disk OperationsVirtual Disk Initialization Background Initialization Consistency Check Media VerificationCycle Time Foreground Initialization Virtual Disk Operations Limit Disk Group OperationsRAID Level Migration Virtual Disk Capacity Expansion Segment Size MigrationDisk Group Expansion Disk Group Defragmentation RAID Background Operations PriorityDisk Group Operations Limit Virtual Disk Migration and Disk Roaming Disk Migration Planning MD3600i Series Storage Array Terms and Concepts Disk Roaming Host Server-to-Virtual Disk Mapping Advanced Features Host Types Snapshot 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 MD3600i Series System Performance Planning MD3600i Series Storage Array Terms and Concepts Performance Monitor Table Description Column Headings Planning MD3600i 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 Configuration About Your Storage Array AMW Setup tab, select Rename Storage Array Locating Storage ArraysNaming or Renaming Storage Arrays AMW, select Storage Array→ Blink→ Storage Array Setting a Password Name/Rename Storage Arrays dialog appears Type the New password PasswordPassword Guidelines Adding/Editing a Comment to an Existing Storage Array Viewing Storage Array ConnectionsSelect Edit→ Comment Removing Storage Arrays Enabling Premium FeaturesSelect Edit→ Remove→ Storage Array Changing the Cache Settings on the Storage Array Displaying Failover Alert Changing the Enclosure Order in the Physical Pane Changing Expansion Enclosure ID NumbersAMW, select Storage Array→ Change→ Enclosure Order Configuring Alert Notifications Configuring E-mail AlertsSelect Configure Alerts Select All storage arrays Configuration About Your Storage Array Configuration About Your Storage Array Configuring Snmp Alerts Battery Settings Setting the Storage Array RAID Controller Module Clocks Configuration Using iSCSI Changing the iSCSI Target AuthenticationSelect Manage iSCSI Settings Enter the Target Chap secret Entering Mutual Authentication Permissions Select the Mutual Authentication tabClick OK in the Manage iSCSI Settings window Creating Chap Secrets Initiator Chap Secret Target Chap SecretValid Characters for Chap Secrets Valid Ascii Characters for Chap Secrets Changing the iSCSI Target Discovery Settings Changing the iSCSI Target IdentificationSelect the Target Identification tab Select the Target Discovery tab Configuring the iSCSI Host Ports Configuration Using iSCSI Advanced iSCSI Host Ports Settings Advanced iSCSI Host Port Settings Description Viewing or Ending an iSCSI Session Viewing iSCSI Statistics and Setting Baseline Statistics Click Set Baseline Edit, Remove, or Rename Host Topology Mappings→ Move Configuration Event Monitor Windows Enabling or Disabling the Event MonitorLinux Configuration About Your Host Configuring Host Access Using the Mappings Tab Defining a Host Select Mappings→ Define→ Host Removing Host Access Select Mappings→ Remove Managing Host Groups Creating a Host GroupSelect Mappings→ Define→ Host Group Adding a Host to a Host Group Moving a Host to a Different Host Group Removing a Host From a Host GroupSelect Mappings→ Move Move Host Confirmation dialog appears Host Topology Removing a Host Group101 Starting or Stopping the Host Context Agent LinuxWindows Click Action→ Start Data Path Protection 103 Add Host Port Identifier dialog appears Managing Host Port Identifiers104 105 106 Creating Disk Groups and Virtual Disks Configuration Disk Groups and Virtual Disks107 Introduction Create Disk Group window is displayed Creating Disk Groups108 109 Locating a Disk Group Creating Virtual Disks 111 Changing the Virtual Disk Modification Priority 112 Changing the Virtual Disk Cache Settings 113 114 Select Virtual Disk→ Change→ Segment Size Changing the Segment Size of a Virtual Disk115 File system typical Database Multimedia Custom Changing the I/O Type116 Physical Disk Security with Self Encrypting Disk Choosing an Appropriate Physical Disk Type117 118 Save Security Key File Validate Security Key Unlock Drives 119 Creating a Security Key 120 121 Click Create Key Changing a Security Key122 Confirm Change Security Key window is displayed 123 Click Change Key Saving a Security Key124 Unlocking Secure Physical Disks Validate Security Key125 Erasing Secure Physical Disks Configuring Hot Spare Physical Disks126 Hot Spare Physical Disk Options window is displayed Select Physical disk→ Hot Spare Coverage127 Hot Spares and Rebuild Global Hot SparesClick Unassign 128 Hot Spare Drive Protection Hot Spare Operation129 130 Enclosure Loss ProtectionCriteria for Enclosure Loss Protection RAID Level Host-to-Virtual Disk Mapping 131 Creating Host-to-Virtual Disk Mappings 132 Modifying and Removing Host-to-Virtual Disk Mapping 133 Changing Controller Ownership of the Virtual Disk 134 Select Virtual Disk→ Change→ Ownership/Preferred Path Removing Host-to-Virtual Disk Mapping135 Select Disk Group→ Change→ Ownership/Preferred Path 136 Restricted Mappings Changing the RAID Level of a Disk GroupSelect Disk Group→ Change→ RAID Level 137 138 139 140 Storage Partitioning Changing the RAID Level of a Disk Group141 142 Select Disk Group→ Add Free Capacity Physical Disks Disk Group and Virtual Disk Expansion143 Using Free Capacity Using Unconfigured CapacityVirtual Disk Expansion 144 Disk Group Migration Export Disk GroupExporting a Disk Group Non-Exportable Components Importing a Disk Group Import Disk Group146 Non-Importable Components Storage Array Media Scan147 Changing Media Scan Settings 148 Suspending the Media Scan 149 150 Configuration Premium Feature- Snapshot Virtual Disks 151 152 About the Simple Path Creating a Snapshot Virtual Disk Using the Simple Path153 154 155 About the Advanced Path Creating a Snapshot Virtual Disk Using the Advanced Path156 157 158 159 Creating the Snapshot Using the Advanced Path Specify Virtual Disk Parameters window is displayedAutomatic Map later with Storage Partition 160 Specifying Snapshot Virtual Disk Names 161 162 Snapshot Repository Capacity 163 Click Add Physical Disks 164 Add Physical Disks window closes 165 Re-Creating Snapshot Virtual Disks Disabling a Snapshot Virtual DiskSelect Virtual Disk→ Snapshot→ Re-create 166 Preparing Host Servers to Re-Create a Snapshot Virtual Disk 167 Select Virtual Disk → Snapshot→ Re-create Re-Creating a Snapshot Virtual Disk168 Configuration Premium Feature- Virtual Disk Copy 169 Creating a Virtual Disk Copy for an Mscs Shared Disk 170 Virtual Disk Read/Write Permissions 171 Creating a Virtual Disk Copy Virtual Disk Copy Restrictions172 Virtual Disk Copy and Modification Operations Before you Begin173 Preferred RAID Controller Module Ownership Create Copy WizardFailed Virtual Disk Copy 174 Failed RAID Controller Module Copy ManagerCopying the Virtual Disk 175 176 Storage Array Performance During Virtual Disk Copy Setting Copy Priority177 Select Change→ Copy Priority Stopping a Virtual Disk Copy178 Preparing Host Servers to Recopy a Virtual Disk Recopying a Virtual Disk179 Recopying the Virtual Disk 180 Select Copy→ Re-Copy Removing Copy Pairs181 182 183 184 Configuration Device Mapper Multipath for Linux 185 Prerequisites Using DM Multipathing Devices186 Device Mapper Configuration Steps 187 Scan for Newly Added Virtual Disks 188 Create a New fdisk Partition on a Multipath Device Node 189 Add a New Partition to Device Mapper Dev/mapper/mpathxpyDev/mapper/mpathx-party Dev/mapper/mpathxparty Linux Host Server Reboot Best Practices Create a File System on a Device Mapper PartitionMount a Device Mapper Partition Ready For Use Important Information About Special Partitions Useful Device Mapper Commands Description192 Limitations and Known Issues 193 194 TroubleshootingQuestion Answer 195 196 Downloading RAID Controller and Nvsram Packages 197 Downloading Both RAID Controller and Nvsram Firmware 198 Click Transfer 199 200 Downloading Only Nvsram Firmware 201 202 Downloading Physical Disk Firmware 203 204 AMW, select Advanced→ Maintenance→ Download→ EMM Firmware Downloading MD1200 Series Expansion Module EMM FirmwareDownload Environmental EMM Firmware dialog appears 205 Self-Monitoring Analysis and Reporting Technology Smart 206 Media Errors and Unreadable Sectors 207 208 Recommended Tools Management Installing Array Components209 Installing the Front Bezel Front Bezel OptionalRemoving the Front Bezel 210 Safety Models AMT, E03J, and E04J Hard DrivesRemoving a Drive Blank 211 Removing a Hard Drive Installing a Drive Blank212 Removing and Installing a Hard Drive 213 Installing a Hard Drive 214 Removing a Hard Drive From a Hard-Drive Carrier 215 216 Installing a Hard Drive Into a Drive Carrier RAID Controller ModuleRemoving a RAID Controller Module Blank 217 Installing a RAID Controller Module Blank 218 Removing a RAID Controller Module 219 Opening the RAID Controller Module Installing a RAID Controller Module220 Closing the RAID Controller Module 221 Removing the RAID Controller Module Backup Battery Unit RAID Controller Module Backup Battery Unit222 Installing the RAID Controller Module Backup Battery Unit 223 Removing a Power Supply/Cooling Fan Module Power Supply/Cooling Fan Module224 225 Installing a Power Supply/Cooling Fan Module 226 Removing the Control Panel Control Panel227 Installing the Control Panel 228 Removing the Backplane Backplane229 230 16. Removing and Installing the Backplane-PowerVault MD3600i 17. Removing and Installing the Backplane-PowerVault MD3620i Installing the Backplane 232 Viewing the Firmware Inventory Management Firmware Inventory233 234 Microsoft Services Virtual Disk ServiceVolume Shadow-Copy Service Management System Interfaces 236 Troubleshooting Your Storage Array Software Start-Up RoutineDevice Health Conditions 237 238 On the Setup tab, select Manage a Storage ArrayStatus Icon Description 239 Additional Status Icons Description 240 Storage Array Support Data Automatically Collect the Support Bundle DataEnter the Execution summary 241 Retrieving Trace Buffers 242 243 Collect Physical Disk Data window is displayed Collecting Physical Disk Data244 Event Log 245 Recovery Guru Storage Array ProfileSelect Storage Array→ View→ Profile 246 247 Viewing the Physical Associations Viewing the Logical Associations248 Finding Nodes 249 Using Go To Select Find all free capacity nodesClick Find Next 250 Recovering From an Unresponsive Storage Array Condition 251 252 253 Locating a Physical Disk 254 Select Physical Disk→ Blink→ Expansion Enclosure Locating an Expansion Enclosure255 Capturing the State Information 256 SMrepassist Utility 257 Unidentified Devices Recovering From an Unidentified Storage Array258 259 260 Starting or Restarting the Host Context Agent Software 261 262 Troubleshooting Your Array Troubleshooting Loss of CommunicationTroubleshooting External Connections 263 Troubleshooting Power Supply/Cooling Fan Module 264 Troubleshooting Expansion Enclosure Management Modules Troubleshooting Array Cooling Problems265 Troubleshooting RAID Controller Modules 266 267 Troubleshooting Hard Drives 268 Troubleshooting a Wet Storage Array Troubleshooting Array and Expansion Enclosure Connections269 Troubleshooting a Damaged Array 270 ECC Errors ConditionsInvalid Storage Array 271 PCI Errors Critical ConditionsNoncritical Conditions 272 Getting Help Contacting DellVisit support.dell.com Click All Support from Support menu 274 Index 275 276 277 278 Smart 279 280 281 282