Troubleshooting Your Storage Array Software, 217 | Dell MD3220

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Troubleshooting: Your Storage Array Software

Start-Up Routine

Look and listen during the array’s start-up routine for the indications described in Table 18-1. For a description of the front- and back-panel indicators, see "Planning: About Your Storage Array" on page 21.

Table 18-1. Start-Up Routine Indications

Look/listen for	Action

Alert messages.	See your storage management
	documentation.
An unfamiliar constant scraping or grinding	See "Getting Help" on page 253.
sound when you access a physical disk

NOTE: At least two physical disks must be installed in the array.

Device Health Conditions

When you open the Enterprise Management Window (EMW), the Dell™ PowerVault™ Modular Disk Storage Management software (MDSM) establishes communication with each managed storage array and determines the current storage array status. The current status is represented by icons next to the managed storage array.

The status icons shown in the Tree view in the EMW represent a summary status for each storage array. If a storage array has a status of Needs Attention or a status of Fixing, you must determine the condition that is causing this status before attempting any management actions. You can determine the condition causing the Needs Attention status or the Fixing status by selecting the storage array and launching its Array Management Window (AMW).

Troubleshooting: Your Storage Array Software

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Dell MD3220, MD3200 Troubleshooting Your Storage Array Software, Start-Up Routine, Device Health Conditions, 217

Contents

Dell PowerVault MD3200 and MD3220 Storage Arrays May Contents Planning MD3200 Series Storage Array Terms and Concepts Cache Functions and Features Virtual Disk Operations Limit Out-of-Band and In-Band Management Configuring Alert Notifications Managing Host Port Identifiers Enabling or Disabling the Event Monitor Physical Disk Security with Self Encrypting Configuring Hot Spare Physical DisksHost-to-Virtual Disk Mapping Snapshot Using the Simple Path 137 Creating a Snapshot Virtual Disk Using122 125 Re-creating a Snapshot Virtual Disk 152 145Creating a Virtual Disk Copy for an Mscs 154 159 Using DM Multipathing Devices 168160 161 Downloading RAID Controller and Nvsram Media Errors and Unreadable Sectors 187177 178 197 Power Supply/Cooling Fan Module 204202 206 217 Recovering From an Unresponsive Storage 229Storage Array Support Data 220 221 Troubleshooting Storage Array Startup Failure Safety First-For you and Your ArrayTroubleshooting Loss of Communication Troubleshooting External Connections 253 About This Document Introduction Dell PowerVault Modular Disk Storage Manager Dell PowerVault MD3200 Series Storage Array Other Information you May Need Introduction Overview Planning About Your Storage Array Front-Panel Features and Indicators Hardware Features Planning About Your Storage Array Item Indicator, Button, or Icon Description Connector Back Panel Features and Indicators Hard Drive Indicators Hard-Drive Indicator Patterns Drive-Status Indicator Pattern Condition Power Supply and Cooling Fan Features Power Indicator Codes Item LED Type Icon Description Power Indicator Codes RAID Controller Modules Planning RAID Controller Modules Function RAID Controller Module Connectors and Features Item Component Function Battery Backup Unit RAID Controller Module-Additional FeaturesComponent Function Storage Array Thermal Shutdown System Password ResetShutdown Threshold Type Event Description Cache Mirroring Cache Functions and FeaturesWrite-Back Cache Write-Through Cache Physical Disks, Virtual Disks, and Disk Groups Planning MD3200 Series Storage Array Terms and Concepts Physical Disk States Physical Disks Virtual Disks and Disk Groups Self-Monitoring Analysis and Reporting Technology Virtual Disk States RAID LevelsRAID Controller Virtual Disk States Description RAID RAID Level Usage RAID Virtual Disk Operations Segment SizeVirtual Disk Initialization Background Initialization Media Verification Consistency CheckCycle Time Virtual Disk Operations Limit Disk Group OperationsRAID Level Migration Segment Size Migration Disk Group Expansion Virtual Disk Capacity Expansion Disk Group Defragmentation RAID Background Operations PriorityDisk Group Operations Limit Disk Migration Virtual Disk Migration and Disk Roaming Planning MD3200 Series Storage Array Terms and Concepts Disk Roaming Advanced Features Host Types Host Server-to-Virtual Disk MappingSnapshot Virtual Disks Snapshot Repository Virtual Disk Virtual Disk Copy Virtual Disk RecoverySource Virtual Disk Target Virtual Disk Multi-Path Software Using Snapshot and Disk Copy Together Virtual Disk Ownership Preferred and Alternate Controllers and Paths Load Balancing Monitoring MD3200 Series System Performance Performance Monitor Table Description Column Headings For more information, see the online help topics Planning MD3200 Series Storage Array Terms and Concepts User Interface Configuration Overview Enterprise Management Window Select Tools→ Inherit System Settings Inheriting the System SettingsSelect Inherit system settings for color and font 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 AMW, select Storage Array→ Blink→ Storage Array Locating Storage Arrays Name/Rename Storage Arrays dialog appears Naming or Renaming Storage Arrays Password Setting a PasswordType the New password Viewing Storage Array Connections Password Guidelines Removing Storage Arrays Adding/Editing a Comment to an Existing Storage ArraySelect Edit→ Comment Select Edit→ Remove→ Storage Array Failover Alert Display Enabling Premium Features Changing Expansion Enclosure ID Number Changing the Cache Settings on the Storage ArrayChanging the Enclosure Order in the Physical Pane Select Configure Alerts Configuring Alert NotificationsAMW, select Storage Array→ Change→ Enclosure Order Select All storage arrays Configuring E-mail Alerts Configuration About Your Storage Array Configuring Snmp Alerts Battery Settings Setting the Storage Array RAID Controller Module Clocks Configuration About Your Storage Array Configuration Event Monitor Windows Enabling or Disabling the Event MonitorLinux Configuring Host Access Configuration About Your Host Defining a Host Using the Mappings TabSelect Mappings→ Define→ Host Configuration About Your Host Managing Host Groups Removing Host AccessCreating a Host Group Select Mappings→ Remove Adding a Host to a Host Group Moving a Host to a Different Host GroupRemoving a Host From a Host Group Select Mappings→ Move Host Topology Removing a Host Group Linux Starting or Stopping the Host Context AgentWindows Click Action→ Start Data Path Protection Add Host Port Identifier dialog appears Managing Host Port Identifiers Configuration About Your Host Creating Disk Groups and Virtual Disks Configuration Disk Groups and Virtual Disks Introduction Create Disk Group window is displayed Creating Disk Groups Configuration Disk Groups and Virtual Disks Creating Virtual Disks Locating a Disk Group Configuration Disk Groups and Virtual Disks Changing the Virtual Disk Modification Priority Map later Using Mappings View Changing the Virtual Disk Cache Settings 100 101 Changing the Segment Size of a Virtual Disk Select Virtual Disk→ Change→ Segment Size Changing the I/O Type102 File system typical Database Multimedia Custom Choosing an Appropriate Physical Disk Type103 104 Physical Disk Security with Self Encrypting Disk 105 106 Creating a Security Key 107 Click Create Key Confirm Change Security Key window is displayed Changing a Security Key108 Click Change Key Saving a Security Key109 110 Unlocking Secure Physical Disks Erasing Secure Physical Disks Configuring Hot Spare Physical Disks111 Hot Spare Physical Disk Options window is displayed Select Physical disk→ Hot Spare Coverage112 Global Hot Spares Hot Spares and RebuildClick Unassign 113 Hot Spare Drive Protection Hot Spare Operation114 115 Enclosure Loss ProtectionCriteria for Enclosure Loss Protection RAID Level 116 Host-to-Virtual Disk Mapping 117 Creating Host-to-Virtual Disk Mappings 118 Modifying and Removing Host-to-Virtual Disk Mapping 119 Changing Controller Ownership of the Virtual Disk Select Virtual Disk→ Change→ Ownership/Preferred Path Removing Host-to-Virtual Disk Mapping120 121 Select Disk Group→ Change→ Ownership/Preferred Path Changing the RAID Level of a Disk Group Restricted MappingsSelect Disk Group→ Change→ RAID Level 122 123 124 125 Changing the RAID Level of a Disk Group 126 Storage Partitioning 127 Select Disk Group→ Add Free Capacity Physical Disks Disk Group and Virtual Disk Expansion128 Using Unconfigured Capacity Using Free CapacityVirtual Disk Expansion 129 Export Disk Group Disk Group MigrationExporting a Disk Group Non-Exportable Components Importing a Disk Group Import Disk Group131 Non-Importable Components Storage Array Media Scan132 133 Changing Media Scan Settings 134 Suspending the Media Scan 135 Configuration Premium Feature- Snapshot Virtual Disks 136 Creating a Snapshot Virtual Disk Using the Simple Path 137 About the Simple Path 138 139 About the Advanced Path Creating a Snapshot Virtual Disk Using the Advanced Path140 141 142 143 Creating the Snapshot Using the Advanced Path 144 Specify Virtual Disk Parameters window is displayed 145 Specifying Snapshot Virtual Disk Names 146 Snapshot Repository Capacity 147 Add Physical Disks window closes Click Add Physical Disks148 Select Virtual Disk→ Snapshot→ Re-create Re-creating Snapshot Virtual Disks149 150 Disabling a Snapshot Virtual Disk 151 Preparing Host Servers to Re-create a Snapshot Virtual Disk Select Virtual Disk → Snapshot→ Re-create Re-creating a Snapshot Virtual Disk152 153 Configuration Premium Feature- Virtual Disk Copy 154 Creating a Virtual Disk Copy for an Mscs Shared Disk Virtual Disk Copy Restrictions Virtual Disk Read/Write Permissions155 156 Creating a Virtual Disk Copy Virtual Disk Copy and Modification Operations Before you BeginCreate Copy Wizard 157 Failed RAID Controller Module Preferred RAID Controller Module OwnershipFailed Virtual Disk Copy 158 Copying the Virtual Disk Copy Manager159 160 Storage Array Performance During Virtual Disk Copy Stopping a Virtual Disk Copy Setting Copy PrioritySelect Change→ Copy Priority 161 Preparing Host Servers to Recopy a Virtual Disk Recopying a Virtual Disk162 163 Recopying the Virtual Disk Select Copy→ Re-Copy Removing Copy Pairs164 165 166 167 Configuration Device Mapper Multipath for Linux Prerequisite Steps Using DM Multipathing Devices168 Scan for Newly Added Virtual Disks Device Mapper Configuration Steps169 170 Add a New Partition to Device Mapper Create a New fdisk Partition on a Multipath Device Node171 Mount a Device Mapper Partition Create a File System on a Device Mapper PartitionReady for Use Important Information About Special Partitions 173 Device Mapper Commands Descriptions 174 Limitations and Known Issues 175 TroubleshootingQuestionAnswer 176 177 Downloading RAID Controller and Nvsram Packages 178 Downloading Both RAID Controller and Nvsram Firmware 179 Click Transfer 180 Downloading Only Nvsram Firmware Upgrade RAID Controller Module Firmware window appears Select Tools→ Upgrade RAID Controller Module Firmware181 182 183 Downloading Physical Disk Firmware 184 Downloading MD1200 Series Expansion Module EMM Firmware AMW, select Advanced→ Maintenance→ Download→ EMM FirmwareDownload Environmental EMM Firmware dialog appears 185 186 Self-Monitoring Analysis and Reporting Technology Smart 187 Media Errors and Unreadable Sectors 188 Recommended Tools Management Installing Array Components189 Front Bezel Optional Installing the Front BezelRemoving the Front Bezel 190 Hard Drives Safety Models AMT, E03J, and E04JRemoving a Drive Blank 191 Removing a Hard Drive Installing a Drive Blank192 193 Removing and Installing a Hard Drive 194 Installing a Hard Drive 195 Removing a Hard Drive From a Hard-Drive Carrier 196 RAID Controller Module Installing a Hard Drive Into a Drive CarrierRemoving a RAID Controller Module Blank 197 198 Installing a RAID Controller Module Blank 199 Removing a RAID Controller Module Opening the RAID Controller Module Installing a RAID Controller Module200 201 Closing the RAID Controller Module Removing the RAID Controller Module Backup Battery Unit RAID Controller Module Backup Battery Unit202 203 Installing the RAID Controller Module Backup Battery Unit Removing a Power Supply/Cooling Fan Module Power Supply/Cooling Fan Module204 205 Installing a Power Supply/Cooling Fan Module Removing the Control Panel Control Panel206 207 208 Installing the Control Panel Removing the Backplane Backplane209 210 17. Removing and Installing the Backplane-PowerVault MD3220 16. Removing and Installing the Backplane-PowerVault MD3200 212 Installing the Backplane Viewing the Firmware Inventory Management Firmware Inventory213 214 Virtual Disk Service Microsoft ServicesVolume Shadow-Copy Service Management System Interfaces 216 Start-Up Routine Troubleshooting Your Storage Array SoftwareDevice Health Conditions 217 218 On the Setup tab, select Manage a Storage ArrayStatus Icon Description Additional Status Icons Description 219 220 Storage Array Support Data Enter the Execution summary Automatically Collect the Support Bundle Data221 Event Log Collecting the Physical Disk Data222 223 Recovery Guru Select Storage Array→ View→ Profile Storage Array Profile224 225 Viewing the Physical Associations Viewing the Logical Associations226 227 Finding Nodes Select Find all free capacity nodes Using Go ToClick Find Next 228 229 Recovering From an Unresponsive Storage Array Condition 230 231 232 Locating a Physical Disk Select Physical Disk→ Blink→ Expansion Enclosure Locating an Expansion Enclosure233 234 Capturing the State Information 235 SMrepassist Utility Unidentified Devices Recovering From an Unidentified Storage Array236 237 238 239 Starting or Restarting the Host Context Agent Software 240 Troubleshooting Loss of Communication Troubleshooting Your ArrayTroubleshooting External Connections 241 242 Troubleshooting Power Supply/Cooling Fan Module Troubleshooting Expansion Enclosure Management Modules Troubleshooting Array Cooling Problems243 244 Troubleshooting RAID Controller Modules 245 246 Troubleshooting Hard Drives 247 Troubleshooting Array and Expansion Enclosure Connections 248 Troubleshooting a Wet Storage Array Conditions Troubleshooting a Damaged Array249 PCI Errors ECC ErrorsInvalid Storage Array Critical Conditions 251 Noncritical Conditions 252 Contacting Dell Getting HelpVisit support.dell.com Click All Support from Support menu 254 255 Index 256 257 258 259 260