Pausing I/O, To pause I/O | Galaxy Metal Gear 65 specs

Galaxy 65 User Guide

2Select Rescan and press Enter.

G.11 Pausing I/O

Most drive enclosures allow you to remove and replace drives while FC disk channel activity continues. However, you may still want to pause I/O if you are replacing more than one disk drive. The Hot Swap Pause option suspends activity on all device channels used in the Galaxy 65 Subsystem, thereby ensuring data integrity on the connected drives and arrays.

Caution Pausing I/O halts active I/O to the host.

Note If you are not sure that your enclosure supports hot swapping, use the Hot Swap Pause option before you remove or replace any drives in an array.

To pause I/O:

1From the System Menu, select Utilities Menu and press Enter. The Utilities Menu displays.

2Select Hot Swap Pause and press Enter The Bus Paused screen displays.

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Galaxy Metal Gear 65 manual Pausing I/O, To pause I/O

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 Preface International StandardsPotential for Radio Frequency Interference Safety European Regulations Preface Battery Safety Laser SafetyClass 1 Laser Product Rack System Precautions ESD Precautions Data Security Special Tools and EquipmentRelated Documentation Conventions Convention Definition BoldResulting in injury or death Revision History Version Date Description of Change14 amended 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 Multiple Power Supply/Cooling Modules Ops Panel Indicators and SwitchesOperators Panel 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 Visible and Audible Alarms Drive Status IndicatorsDummy Carrier Modules Anti-tamper Locks Installing your Galaxy 65 Subsystem Galaxy 65 Technical SpecificationDimensions Weight PSU Safety and EMC Compliance Power CordEnvironment Drive Carrier Module Specification Interfaces Galaxy 65 FC-AL LRC I/O Module Specification Software Enclosure Services SES SupportRAID Card Power On Before You Begin Power Supply/Cooling Module LEDs Ops Panel LEDs Any PSU fault or Fan fault Over or Under temperatureIntermittent Ops to ESI Communications failed Audible alarm Invalid address mode setting Power Up/Down Starting the DrivesDisk Drives LEDs 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 Click Verify & Update Array Parity Verifying an ArrayStopping the Array Verification Process To stop the array verification process Changing Array Ownership Changing an Array NameClick Abort Array Verification Click Change Array Name Select Disk Array Config Trust Array Trusting an ArrayDeleting an Array Click Change Options Managing Partitions Viewing Partition Status InformationChanging a Partition Name Click Delete This Array Changing a Partition LUN Click Change Partition NameClick Change Partition LUN Controlling Partition Access Viewing Known WWNs Creating Nicknames for Host WWNs Click Change Host NicknameClick Add New Host Configuring InfoShield Changing the Read-Ahead Cache Size Deleting a Partition Click Set Read Ahead Cache SizeClick Delete Partition Galaxy 65 User Guide Monitoring System Status Using SAM Setting Up Remote Notification Setting Up the Events to be Monitored Setting Up the E-mail AddressesStarting and Stopping Remote Notification 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 LAN-related Settings Configuring the Telnet TimeoutConfiguring the Snmp Settings Click Change LAN Configuration Configuring the System Information Setting PasswordsClick Change System Configuration Configuring the Security Options Changing the Date and Time Understanding LUNs and Viewing LUN InformationClick Change Date/Time Changing the Alarm Mute Setting Changing Management LUNsViewing LUN Information 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 Saving and Restoring a Configuration File Saving a Configuration FileRestoring a Configuration File To restore a configuration file Click Restore Configuration File Click Continue Viewing and Restoring Default Settings Viewing Default SettingsRestoring Default Settings Click Proceed with Code Update Updating SoftwareClick Load Software Package File Galaxy 65 User Guide Managing Disk Drives Displaying Disk Drive Information Clearing Metadata from a Disk Drive Displaying All DevicesViewing Disk Drive Status Click Clear Metadata from Selected Device Click Change Disk Option Configuration Enabling and Disabling Write-back CacheDisplaying Disk Drive Cache Status Enabling and Disabling Smart Changes Blinking a Drive LED Taking Down a Disk DriveClick Blink Selected Device LED Click Down Selected Drive Testing a Disk Drive Setting the EMP LUNManaging Enclosures Click Test Unit Ready Changing the Additional EMP Setting Click Update EMP Configuration Initial Start-up Problems Overview LEDs Ops Panel Audible Alarm Audible Alarm MuteLED Test Mode Troubleshooting System Address Hub Green Cooling System Faults Power Supply/Cooling FaultsSymptom Cause Action Thermal Control Drive Carrier Module Faults Thermal AlarmState Green Amber Dealing with Hardware Faults Continuous Operation During ReplacementAuto Start Failure Host Fibre Channel Problems Problem SAM pages do not display properlyProblem SAM page help is not displaying Array Problems Changing the Backoff Percent Using SAMProblem Array is much smaller than it should be To change the backoff percentage Galaxy 65 Subsystem Problems 12.1 Power Supply/Cooling ModulesReplacing a Module 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 Terminal Emulator and COM Port Problems Problem Galaxy 65 Subsystem failed the onboard memory testProblem One of the Post diagnostic tests failed 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 Setting Up and Viewing the Debug Log Summary of Debug Log CapabilitiesCollecting Debug Logs Configuring Debug Logs Disk Array Administrator on Controller a Utilities MenuDisk Array Administrator on Controller B Utilities Menu Using the Loader Diagnostics Menu Using SAM to Set Up and View the Debug LogUsing the Disk Array Administrator to Set Up Debug Logging To set up debug logging Using the Loader Utility Menu Understanding Disk-related ErrorsDisk Errors Sense Key Description Disk Channel Errors Error Code DescriptionDescriptions 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 Array Types RAID 0 Striped DisksRAID 1, RAID 10 Mirrored 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 Navigating the Disk Array Administrator Software Do thisPress Esc, CTRL-Z, or ← 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 Viewing Array and Drive Status Information Viewing Array StatusTo view the status of an array Select Array Status and press Enter Viewing Drive Status To view drive status Stopping the Array Initialization Process Select Drive Status and press EnterTo stop the array initialization process Select Abort Initialization and press Enter Adding a Partition To add a partitionSelect Add a Partition and press Enter Galaxy 65 User Guide 123 124 Viewing Verification Status Stopping the VerificationTo view verification status Reconstructing an Array Expanding Array CapacityTo stop the verification process RAID level Number of drives you can add Number of drivesTo expand an array Select Expand Function and press Enter 128 Viewing Expand Status To view expand statusTo change an array name Select Switch Array Owner and press Enter To change array ownershipTo trust an array To delete an array 132 Understanding Partitions Partition 1 Free space Viewing Partition Status To view the status of a partition From the Array Menu From the All Partitions MenuPartitions Menu and press Enter 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 Viewing One Event at a Time To view one event at a timeSelect View Event Log and press Enter 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 Resetting Overall Statistics To access the overall array statisticsTo access the read/write histogram Managing Spares Managing Dedicated Spares Adding a Dedicated SpareDeleting a Dedicated Spare To add a dedicated spare To enable dynamic spares Enabling Dynamic Spares Managing the Spare Pool Adding a Spare to the Spare Pool Deleting a Spare from the Spare PoolDisplaying the Spare Pool Galaxy 65 User Guide 172 Managing Disk Drives and Enclosures Displaying Drive Information Displaying All Drives To display all drives 176 Displaying Drive Errors and Resetting Error Statistics Clearing Metadata from a DriveTo clear 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 Taking Down a Drive To blink a drive LED from the Drive Utilities MenuTo take down a drive 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 Shutting Down and Restarting the Storage Manager Module Shutting Down and Restarting the Current SM ModuleTo shut down and restart the current SM 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 Configuring the LAN Settings Configuring the IP SettingsTo set the IP address, subnet mask, or gateway Configuring the FTP Settings Configuring the Telnet SettingsTo set the FTP 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 Resetting the LAN Subsystem To reset the LAN SubsystemSelect Reset LAN Subsystem and press Enter 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