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APC 15000 RAID manual Drive Enclosure Troubleshooting, Overview, Initial Start-up Problems

Models: 15000 RAID

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Drive Enclosure Troubleshooting

Chapter 8

Drive Enclosure Troubleshooting

8.1 Overview

The SGI InfiniteStorage15000 Drive Enclosure includes an Enclosure Services Processor and associated monitoring and control logic to enable it to diagnose problems within the enclosure’s power, cooling, and drive systems.

The sensors for power and cooling conditions are housed within the PCMs. Each unit is independently monitored.

8.2Initial Start-up Problems

8.2.1Faulty Cords

First check that you have wired up the subsystem correctly. If:

•cords are missing or damaged,

•plugs are incorrect,

•cords are too short,

Call your supplier for a replacement.

8.2.2Alarm Sounds On Power Up

Please refer to Section 8.4.

8.2.3Green “Signal Good” LED on I/O Module Not Lit

Check to ensure that the cables have not been reversed during installation.

8.2.4Computer Doesn’t Recognize the Drive Enclosure Subsystem

1Check that the SAS interface cables from the drive enclosure to the host computer, or I/O controller, are fitted correctly.

2Check that all drive carrier modules have been correctly installed.

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APC 15000 RAID manual Drive Enclosure Troubleshooting, Overview, Initial Start-up Problems

Contents

SGI InfiniteStorage 15000 RAID User’s Guide Copyright Introduction Controller Remote Management and Troubleshooting Drive Enclosure Operation 115 Replacing the DEM 127 Potential for Radio Frequency Interference What is in this guidePreface International StandardsSafe Handling European RegulationsQualified Personnel Chassis Warning Label Weight Hazard SafetyPCM Warning Label Power Hazards Recycling of Waste Electrical and Electronic Equipment Weee Rack System PrecautionsCover Label ESD Precautions Data SecurityPreface Page Infiniband or Fibre Channel FC-8 Connectivity Throughput Controller FeaturesIntroduction Simplifies Deployment of Complex SANsController Hardware 1SGI InfiniteStorage 15000 IB Front and Rear Views 2Fan Module front panel Power Supply and Fan ModulesHost IB LEDs Ethernet 2 I/O Connectors and Status LED Indicators4Host Port LEDs Ctrl Temp FAN Status System Disk Status Indicator Led Activity Explanation Uninterruptible Power Supply UPS Page Setting Up the Controller Controller InstallationRack-Mounting the Controller Chassis Connecting the Controller in Dual ModeUnpacking the System Disk ports Host port 1 Host port Connecting the ControllerBasic Key Operations Connecting the RS-232 TerminalBasic Key Assignments Powering On the ControllerPlanning Your Setup and Configuration Configuring the ControllerSetting System Time & Date Configuration InterfaceLogin as Administrator 4Tier Changemap Screen Setting Tier Mapping Mode5Tier Status Screen Checking Tier Status and ConfigurationHeading Definitions Cache Coherency and Labeling in Dual Mode7Dual Controller Configuration Configuring the Storage ArraysEnter the block size in Bytes 512Enter To create the LUN 1, type Authorized user Host port zoning Setting Security LevelsUser Authentication Recommended for SAN Environment To add a user Check to ensure that the LUN Zoning chart is empty Figure12shows a finished sample Host Port Zoning Anonymous Access Page Management Interface Controller ManagementManaging the Controller Login Available CommandsAdministrator and User Logins Who Am PasswordLogout Configure and Monitor Status of Host Ports Configuration ManagementHost Status Host IDHost Port Speed Configure and Monitor Status of Storage AssetsHost IB Users Disk STATUSCLEAR=tierchannel resets the channel error counts 11Disk Defect List Screen Sata Aamux PHY Errors 12Disk PLS Tier 1 Status Screen Tier ViewTier Configuration LUN View 14Tier Configuration ALL ScreenAdding/Removing Storage Assets LUN ConfigurationLUN Reservations Tier Mapping for Enclosures Telnet System Network ConfigurationAPI Server Connections Snmp & SyslogSystem Restart Restarting the ControllerDisplaying and Editing the Routing Table System Date Setting the System’s Date and TimeSystem Shutdown System Time Saving the Controller’s ConfigurationRestoring the System’s Default Configuration Creating a LUN Configuring the Storage ArrayLUN Management Changing a LUN Label Formatting a LUNInterrupting a LUN Format Operation Deleting a LUN Moving a LUN Dual Mode OnlyAutomatic Drive Rebuild Manual Drive Replace Smart CommandManual Drive Rebuild Drive Rebuild VerifySmart Enable Cache Coherent Couplet Controller Configuration Cache/Non-Cache CoherentLabeling the Controller Units Fail / Restore the Other Controller Unit in the Couplet PairSinglet Performance ManagementOptimizing I/O Request Patterns Cache Segment Size Writeback Cache SettingsPrefetch Settings Disk Configuration Settings Cache Settings Reset31Current Audio/Visual Settings Audio/Visual Settings of the SystemInitial Cache Locking LUN in CacheSystem Performance Statistics Locking / Unlocking a LUN33System Performance Statistics Screen 34Command Delay Statistics Screen 35Host Delay Statistics Screen 37Host Command Offsets Screen 38Dual Message Statistics Screen Background Format/Rebuild Operations Resources AllocationBackground Tier Verify Operations Background LUN Verify Operations42Tier Verify on Screen Rebuild Journaling CLI commands Tier PAUSE, Tier RESUME, Tier Stop007-5510-002 SES Device Monitoring Rate 44Sample Tier Journal Command ScreenHost Command Timeout Security AdministrationZoning Anonymous Access Monitoring User Logins50Edit Zoning Configuration Screen User AuthenticationDisplaying Current Firmware Version Firmware Update ManagementFirmware Update Procedure 53Downloading Controller Firmware Remote Login Management54Telnet Statistics When a Telnet Session is Active56Telnet Session Information Message Log System and Drive Enclosure FaultsSystem Logs Saving a Comment to the Log Displaying System UptimeChanging Baud Rate for the CLI Interface Other UtilitiesAPC UPS Snmp Trap Monitor API Server ConnectionsDisk Diagnostics 4 CLI/Telnet Session Control SettingsSpare Commands Disk Reassignment and Miscellaneous Disk CommandsUnique Network Connection Controller Remote Management and TroubleshootingNetwork Interface Set Up Remote Management of the ControllerNetwork trapip=computer’s IP address 3Current Controller Routing Table Login Names and PasswordsSdd.mib Sddtrap.mib Snmp Set Up on Host ComputerController Implementation of Snmp Traps Troubleshooting the ControllerComponent Failure Recovery Power Supply FailureFan Failure Recovering from Drive FailuresSingle Drive Failures Manually Replacing a Failed Disk with Spare Disk Returning the System to a Fault-Tolerant StateMultiple Drive and Channel Failures Changing the Rate of RebuildInterrupting the Rebuild Operation 7Example of SES Message Component Failure on EnclosuresSGI InfiniteStorage 15000 Drive Enclosure Drive Enclosure System3Drive Enclosure Module Locations Enclosure Core ProductEnclosure Chassis Power Cooling Module PCMPlug-in Modules Input/Output I/O Module Amber Definition Enclosure Audible AlarmColor GreenBlue Drive Carrier Module and Status IndicatorDEM Card Front Panel Drive Activity Indicators IndicatorsShelf Identify System FaultSystem Power DEM FaultNumbered Drive FaultIndividually HDDs Rear of Enclosure Activity Indicators Internal IndicatorsDimensions Visible and Audible AlarmsDrive Enclosure Technical Specification Input Parameter Value WeightEnvironment PCM Safety and EMC CompliancePower Cord Page Introduction Planning Your Installation Drive Enclosure InstallationEnclosure Bay Numbering Convention Bay B Bay a21X60 Drive Numbering Table Controller Options Enclosure Installation ProceduresI/O Module Configurations Grounding Checks Sata Interposer FeaturesDrive Enclosure Device Addressing Page PCM LEDs Power On / Power DownDrive Enclosure Operation Before You BeginDefinition 2 I/O Panel LEDsOverview Drive Enclosure TroubleshootingInitial Start-up Problems DEM Drive Expander Module PCM Power Cooling ModuleLEDs HDD Hard Disk DriveBlue 4 I/O ModuleDefinition Normal Behavior Top Cover Open Audible AlarmTroubleshooting SES CommandSymptom Cause Action Thermal Shutdown Dealing with Hardware FaultsThermal Alarm Module Continuous Operation During ReplacementPower Cooling Modules Replacing a ModuleTo remove an AC PCM Thumb Screw Model To install an AC PCM Handle ModelTo install an AC PCM Thumbscrew Model To remove the I/O Module To installing the I/O Module2 I/O Module Replacing the Drive Carrier ModuleTo Insert the Drive Carrier Module Replacing the DEMPage Reliability Configuration, Performance, & CapacityPhysical, Power & Environmental Drive Addressing 007-5510-002 133 Page Cabling Controllers and Drive Enclosures 136 137 138