Clearing Metadata from a Disk Drive | Galaxy Metal Gear 65 guide

Galaxy 65 User Guide

6.1.1.1Displaying All Devices

You can display a list of all connected devices. For more information about the fields that display for each device, click Page Help near the bottom of the page.

Disk drives that are not members of any array are listed as Available. Drives that contain leftover metadata from a previous array are listed as Leftover. This situation can arise if drives are removed and reinserted or the drives failed temporarily and are not operating again. To clear leftover metadata, use the Clear Metadata function. SeeAppendix Fsection F.1.2, ”Clearing Metadata from a Drive”, on page 177.

To display all disk drives:

•From SAM, select Monitor Galaxy 65 Subsystem > Status > Display All Devices. The Display All Devices page displays listing all connected devices.

6.1.1.2Viewing Disk Drive Status

You can view the status of the drives in an array.

Note If a disk drive has failed or malfunctioned, it may not be listed.

To view drive status:

1From SAM, select Manage Galaxy 65 Subsystem > Status > Disk Drive Status. The Disk Drive Status page displays listing all arrays.

2Select the array whose disk drive status you want to see.

6.1.2 Clearing Metadata from a Disk Drive

All of the member disk drives in an array contain metadata in the first sectors. The Galaxy 65 Subsystem uses the metadata to identify array members after restarting or replacing SMs.

You can clear the metadata if you have a disk drive that was previously a member of an array. Disk drives in this state display Leftover in the Display All Devices page and in the Clear Metadata page. After you clear the metadata, you can use the disk drive in an array or as a spare.

To clear metadata from a disk drive:

1From SAM, select Manage Galaxy 65 Subsystem > Utilities > Disk Drive Utilities > Clear Metadata. The Clear Metadata page displays listing all available and leftover disk drives.

2Select the disk drive whose metadata you want to clear.

3Click Clear Metadata from Selected Device.

You can now use this disk drive in an array or as a spare.

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Galaxy Metal Gear 65 manual Clearing Metadata from a Disk Drive, Displaying All Devices, Viewing Disk Drive Status

Contents

Galaxy 65 User Guide Acknowledgments Contents Operation Troubleshooting and Problem Solving Managing Disk Drives & Enclosures Accessing Disk Array Administrator Software Array Basics Creating and Managing Arrays & Partitions 105 Managing Disk Drives and Enclosures 173 Index 229 Galaxy 65 User Guide Potential for Radio Frequency Interference PrefaceInternational Standards Safety European Regulations Preface Class 1 Laser Product Battery SafetyLaser Safety Rack System Precautions ESD Precautions Related Documentation Data SecuritySpecial Tools and Equipment Resulting in injury or death ConventionsConvention Definition Bold 14 amended Revision HistoryVersion Date Description of Change 10 planned deleted Preface Xvii Galaxy 65 User Guide Xviii Introduction Galaxy 65 System Enclosure Core Product Enclosure Chassis Tower Option 3Galaxy 65 Enclosure Chassis Rear Power Supply/Cooling Module Plug-in Modules Operators Panel Multiple Power Supply/Cooling ModulesOps Panel Indicators and Switches Switch Function Recommended Definition Number Setting Loop Resiliency Circuit Input/Output Module FC-AL 7LRC Panel Layout 8Galaxy 65 LRC Storage Manager I/O Module Drive Carrier Module 10Drive Carrier Module Dummy Carrier Modules Visible and Audible AlarmsDrive Status Indicators Anti-tamper Locks Dimensions Installing your Galaxy 65 SubsystemGalaxy 65 Technical Specification Weight Environment PSU Safety and EMC CompliancePower Cord Drive Carrier Module Specification Interfaces RAID Card Galaxy 65 FC-AL LRC I/O Module SpecificationSoftware Enclosure Services SES Support Power On Before You Begin Power Supply/Cooling Module LEDs Ops Panel LEDs Intermittent Ops to ESI Communications failed Audible alarm Any PSU fault or Fan faultOver or Under temperature Invalid address mode setting Disk Drives LEDs Power Up/DownStarting the Drives Managing Arrays and Partitions Using SAM Galaxy 65 RAID Management Managing Arrays Viewing Array and Drive Status Information Resetting All Statistics Viewing Array and Partition Statistics Stopping the Array Verification Process Click Verify & Update Array ParityVerifying an Array To stop the array verification process Click Abort Array Verification Changing Array OwnershipChanging an Array Name Click Change Array Name Deleting an Array Select Disk Array Config Trust ArrayTrusting an Array Click Change Options Changing a Partition Name Managing PartitionsViewing Partition Status Information Click Delete This Array Click Change Partition LUN Changing a Partition LUNClick Change Partition Name Controlling Partition Access Viewing Known WWNs Click Add New Host Creating Nicknames for Host WWNsClick Change Host Nickname Configuring InfoShield Changing the Read-Ahead Cache Size Click Delete Partition Deleting a PartitionClick Set Read Ahead Cache Size Galaxy 65 User Guide Monitoring System Status Using SAM Setting Up Remote Notification Starting and Stopping Remote Notification Setting Up the Events to be MonitoredSetting Up the E-mail Addresses Saving Log Information to a File Click Change E-mail Info Displaying Overall Statistics Resetting the All Statistics Galaxy 65 User Guide Configuring the Galaxy 65 System Configuring the Snmp Settings Configuring the LAN-related SettingsConfiguring the Telnet Timeout Click Change LAN Configuration Click Change System Configuration Configuring the System InformationSetting Passwords Configuring the Security Options Click Change Date/Time Changing the Date and TimeUnderstanding LUNs and Viewing LUN Information Viewing LUN Information Changing the Alarm Mute SettingChanging Management LUNs Click Change Management LUN Alarm threshold What to do when the alarm sounds Click Change Configuration Enabling and Disabling the Battery Changing the Utility Priority Pausing I/O Rescanning All Ports Restoring a Configuration File Saving and Restoring a Configuration FileSaving a Configuration File To restore a configuration file Click Restore Configuration File Click Continue Restoring Default Settings Viewing and Restoring Default SettingsViewing Default Settings Click Load Software Package File Click Proceed with Code UpdateUpdating Software Galaxy 65 User Guide Managing Disk Drives Displaying Disk Drive Information Viewing Disk Drive Status Clearing Metadata from a Disk DriveDisplaying All Devices Click Clear Metadata from Selected Device Displaying Disk Drive Cache Status Click Change Disk Option ConfigurationEnabling and Disabling Write-back Cache Enabling and Disabling Smart Changes Click Blink Selected Device LED Blinking a Drive LEDTaking Down a Disk Drive Click Down Selected Drive Managing Enclosures Testing a Disk DriveSetting the EMP LUN Click Test Unit Ready Changing the Additional EMP Setting Click Update EMP Configuration Initial Start-up Problems Overview LEDs Ops Panel LED Test Mode Audible AlarmAudible Alarm Mute Troubleshooting System Address Hub Green Cooling Symptom Cause Action System FaultsPower Supply/Cooling Faults Thermal Control State Green Amber Drive Carrier Module FaultsThermal Alarm Auto Start Failure Dealing with Hardware FaultsContinuous Operation During Replacement Problem SAM page help is not displaying Host Fibre Channel ProblemsProblem SAM pages do not display properly Problem Array is much smaller than it should be Array ProblemsChanging the Backoff Percent Using SAM To change the backoff percentage Replacing a Module Galaxy 65 Subsystem Problems12.1 Power Supply/Cooling Modules Removing a PSU Module 2Removing/Inserting a Power Supply/Cooling Module 3Removing a Power Supply/Cooling Module Storage Manager Module Removing the Module 6Removing a Storage Manager Module Battery Replacement Insertion/Removal of SFP Modules Removal and Replacement 8Storage Manager Module Battery Assembly Location Problem One of the Post diagnostic tests failed Terminal Emulator and COM Port ProblemsProblem Galaxy 65 Subsystem failed the onboard memory test Problem Screen continuously puts out garbage characters Problem Screen looks correct, but clock is not being updated Event Definition Recommended Action Array Critical Other WWN Errors SYS Online Fail Collecting Debug Logs Setting Up and Viewing the Debug LogSummary of Debug Log Capabilities Disk Array Administrator on Controller B Utilities Menu Configuring Debug LogsDisk Array Administrator on Controller a Utilities Menu Using the Disk Array Administrator to Set Up Debug Logging Using the Loader Diagnostics MenuUsing SAM to Set Up and View the Debug Log To set up debug logging Disk Errors Using the Loader Utility MenuUnderstanding Disk-related Errors Sense Key Description Descriptions Disk Channel ErrorsError Code Description Voltage and Temperature Errors and Warnings Slow Write Performance Spare Parts and Ancillary Items Upgrading Your LRC I/O Modules Switch Function Recommended Definition Number Setting Array Basics Application RAID level RAID 1, RAID 10 Mirrored Disks Array TypesRAID 0 Striped Disks RAID Volume Sets Comparing RAID Levels RAID Level Min No. Drives Description Strengths Weaknesses Array Basics Galaxy 65 User Guide Accessing Disk Array Administrator Software SettingValue Setting Value Accessing DAM Using the Ethernet Port for the First Time Accessing the Disk Array Software Using the Ethernet Port 100 Press Esc, CTRL-Z, or ← Navigating the Disk Array Administrator SoftwareDo this Changing the Screen Display Select Function Disk Array Administrator Menu Tree System Menu 2Menu Tree sheet Creating Arrays RAID level Minimum Maximum Number Drives Creating a Single-Partition Array To create a single-partition array 107 See , Array Basics, on page 89, for more information 109 110 Creating a Multiple-Partition Array To create a multiple-partition array 112 113 114 115 116 To view the status of an array Viewing Array and Drive Status InformationViewing Array Status Select Array Status and press Enter Viewing Drive Status To view drive status To stop the array initialization process Stopping the Array Initialization ProcessSelect Drive Status and press Enter Select Abort Initialization and press Enter Select Add a Partition and press Enter Adding a PartitionTo add a partition Galaxy 65 User Guide 123 124 To view verification status Viewing Verification StatusStopping the Verification To stop the verification process Reconstructing an ArrayExpanding Array Capacity To expand an array RAID level Number of drives you can addNumber of drives Select Expand Function and press Enter 128 To change an array name Viewing Expand StatusTo view expand status To trust an array Select Switch Array Owner and press EnterTo change array ownership To delete an array 132 Understanding Partitions Partition 1 Free space Viewing Partition Status Partitions Menu and press Enter To view the status of a partitionFrom the Array Menu From the All Partitions Menu Enter Viewing Partition Statistics To view the partition statistics Resetting Partition Statistics To reset partition statistics Expanding a Partition To expand a partition To change a partition LUN To change the read-ahead size Enabling or Disabling Write-back Cache To enable or disable write-back cache 5InfoShield example To view known WWNs Select General InfoShield and press Enter Select Display Host List and press Enter To create or change nicknames for WWNs 148 To set up InfoShield Changing All Partitions to Include All Hosts To delete a partition Galaxy 65 User Guide 152 Monitoring System Status Introduction Displaying the Event Log Viewing the Most Recent Event Select View Event Log and press Enter Viewing One Event at a TimeTo view one event at a time Viewing a Whole Screen of Events To view a whole screen of events Capturing the Event Log To capture the event log file Displaying Module Status Information To display module status information Displaying Hardware Configuration Information Group Field What displays Disk EMP To display hardware information only To display hardware and configuration information 163 Displaying Drive Errors Resetting Error Statistics Select Dump Debug Info and press Enter To display drive errors To access the read/write histogram Resetting Overall StatisticsTo access the overall array statistics Managing Spares Deleting a Dedicated Spare Managing Dedicated SparesAdding a Dedicated Spare To add a dedicated spare To enable dynamic spares Enabling Dynamic Spares Managing the Spare Pool Displaying the Spare Pool Adding a Spare to the Spare PoolDeleting a Spare from the Spare Pool Galaxy 65 User Guide 172 Managing Disk Drives and Enclosures Displaying Drive Information Displaying All Drives To display all drives 176 To clear metadata from a drive Displaying Drive Errors and Resetting Error StatisticsClearing Metadata from a Drive To change the write-back cache setting Displaying Disk Cache Status To display disk cache status 180 To enable or disable Smart changes To take down a drive Taking Down a DriveTo blink a drive LED from the Drive Utilities Menu Testing a Drive To test a drive To change the EMP LUN 185 Select the option or number you want to use To change the EMP settings Galaxy 65 User Guide 188 Configuring the Galaxy 65 Subsystem To shut down and restart the current SM Shutting Down and Restarting the Storage Manager ModuleShutting Down and Restarting the Current SM Module Shutting Down the Other SM Module Select Shutdown/Restart and press Enter Shutting Down Both SM Modules Other Controller Menu 193 To set an SM module’s time Configuring the Host Channels Host channel Description Setting To configure the host channels Target ID To view LUN information 198 Configuring the FC Disk Channels To configure the FC disk channels 201 Galaxy 65 CPU temperature VCC voltage To enable or disable the alarm Voltage Same as above for the VCC voltage Locking the Cache Setting To lock the cache setting To change the battery setting To change the utility priority Select Utility Priority and press Enter Rescanning All Channels To rescan all channels To pause I/O Restoring Default Settings To restore the default settings Updating Firmware Updating the SM, SM Loader and Memory Controller Firmware Updating LAN Firmware To upgrade the LAN Subsystem’s firmware LAN Configuration Configuring the SM for TCP/IP To set the IP address, subnet mask, or gateway Configuring the LAN SettingsConfiguring the IP Settings To set the FTP settings Configuring the FTP SettingsConfiguring the Telnet Settings To set the Telnet settings To set the Snmp settings Configuring the Contact Settings To set the contact settings Configuring the Http Settings To set the Http settings Select Reset LAN Subsystem and press Enter Resetting the LAN SubsystemTo reset the LAN Subsystem To change any of the security options Galaxy 65 User Guide 220 Glossary 222 223 224 Glossary Small form-factor pluggable SFP Type of connector 227 Galaxy 65 User Guide 228 Index 164 Partitions 31 Disk drives ESD Http LED Number of Drives screen 108 Setting up for SAM 218 SAM 171 Defined 167 Deleting dedicated 168 Deleting pool Stopping the process