Concurrent Rebuild in RAID 0+1 | Compaq Infortrend specs

3. Concurrent Rebuild in RAID (0+1)

RAID (0+1) allows multiple drive failures and rebuild to be concurrently conducted on more than one of its members. Drives newly swapped must be scanned and set as Local Spares. These drives will be used for rebuild at the same time (you do not need to repeat the rebuild process for each member drive).

1-11	Infortrend

Image 33

Compaq Infortrend manual Concurrent Rebuild in RAID 0+1

Contents

Revision Firmware Version External RAID Controller & Subsystem Disclaimer Copyright This Edition First Published Iii RMA PolicySupported Models Table of Contents LCD Keypad Operation LCD Screen Messages Viewing and Editing Scsi Drives Viewing and Editing Logical Drives and Drive Members Terminal Screen Messages Terminal OperationVii Viii Fibre Operation Advanced Configuration Multi-Host Access Control LUN FilteringHost-side and Drive-side Scsi Parameters 10-1 Redundant Controller10-14 10-19 Array Expansion Record of Settings Appendix C System Functions Upgrading Firmware Appendix D Event MessagesXii Functional Table of Contents 7.8 Xiv Chapter Fibre Operation Chapter Advanced Configurations Chapter Redundant Controller Configuration Chapter Array ExpansionXvi Xvii Appendix C Controller Maintenance Chapter Xviii Xix Optimization Setting About This Manual Xxi Revision History Xxii What is a logical volume? Logical VolumeLogical Drive Chapter What are the RAID levels? RAID LevelsRAID Levels Infortrend LogicalDrive RAID 0+1 RAID 0+1 Disk Striping with Dedicated Parity Disk Global and Local Spare Drives Spare DrivesLocal Spare 12 Mixing Local and Global Spares Flash Selected Scsi Drive Identifying DrivesFlash All Scsi Drives Flash All but Selected Drives Automatic Rebuild and Manual Rebuild Rebuild 14 Manual Rebuild Manual Rebuild Concurrent Rebuild in RAID 0+1 15 Logical Volume Logical Volume Multi-Level RAID 16 Logical Drive Composed of 24 Drives 18 Logical Volume with Drives on Different Channels Spare drives assigned to a logical volume? Limitations Different write policies within a logical volume? RAID expansion with logical volume?Different controller settings using logical volume? Multi-level RAID systems Logical volume with logical drives of different levels? How many physical drives do you have? How many drives on each drive channel?RAID Planning What kind of host application? Dual loop, hub, or switch? What RAID level? Optimization Mode Limitations? Any spare drives? Starting a RAID System Array Configuration Process Infortrend Grouping Drives into an Array 1 I/O Channel, Scsi ID, and LUN Physical locations of drive members Mapping Partitions to Host ID/LUNs Making Arrays Available to Hosts Tunable Parameters Controller Parameter Settings Optimization Mode Array Configuration Following are guidelines on using the serial port RS-232C Serial PortOut-of-Band via Serial Port and Ethernet Configuring RS-232C Connection via Front Panel Keys used when operating via the terminal are as follows Connecting TerminalStarting RS-232C Terminal Emulation Out-of-Band via Ethernet What Is the Disk Reserved Space? Connecting Ethernet Port Other ConcernsRequirements Use a Terminal Emulator to Begin Configuration Configuring the Controller Assign an IP Address to Ethernet Port Starting the Manager Snmptrap NPC Onboard Snmptrap section Quick Installation Screen Initial ScreenLCD Screen Messages Logical Drive Logical Drive StatusRAID level Drive numbers Logical Volume Status Logical Volume Status Scsi Drive Status Default Scsi Bus Sync Clock Channel ModeScsi Channel Status Primary Controller Scsi ID Mapping Controller Voltage and Temperature Cache Dirty Percentage UPS Power Failure Detected Press 2 Seconds to Clear EventsView and Edit Event Logs View and Edit Event Logs Caching Parameters Power on RAID EnclosureOptimization Modes Front Panel Operation Database and Transaction-based Applications Optimization Mode and Stripe Size Write-Back/Write-Through Cache Enable/Disable Write-Back Cache Enabled Disable WriteOptimization for Random or Sequential I/O Infortrend View and Edit Scsi Drives View Connected Drives=2 I=0 1010MB New DRV Seagate View Drive Information Choosing a RAID Level Creating a Logical DriveChoosing Member Drives Logical Drive Preferences Maximum Drive Capacity Initialization ModeSpare Drive Assignments Disk Reserved Space On-Line Mode Stripe size Default ?Stripe Size Beginning Initialization Off-Line Mode Creating a Logical Volume Logical Volume Assignment Partitioning a Logical Drive/Logical Volume View Edit Host Luns Mapping a Logical Volume/Logical Drive to Host LUN Adding a Local Spare Drive Assigning Spare Drive and Rebuild SettingsMAP to LV=0 PRT=0? View and Edit Scsi Drives =2 I=4 1010MB Rebuild Settings Adding a Global Spare DriveAdd Global Spare Drive Add Global Spare Drive Successful Deleting a Logical Drive Viewing and Editing Logical Drives and Drive Members Drive Space Allocated to the Last Partition Deleting a Partition of a Logical Drive Rebuilding a Logical Drive Assigning a Name to a Logical DriveView and Edit Logical Drives LG0 RAID5 DRV=3 2012MB FL SB=0 Rebuild Logical Drive Drive? Rebuilding 25% Please Wait LG0 RAID5 DRV=3 2012MB RB SB=0 Rebuild Progress Regenerating Logical Drive Parity View and Edit Logical Drives LG0 RAID5 DRV=3 4095MB GD SB=0 Media Scan Write Policy Pass-through Scsi Commands Viewing and Editing Host LUNsViewing and Deleting LUN Mappings Viewing and Editing Scsi Drives Scanning New Scsi DriveScan Channel=1 ID=1 Scan Fail =1 I=1 Absent Identifying a Drive Redefining Channel Mode Viewing and Editing Scsi ChannelsDeleting Spare Drive Global / Local Spare Drive Adding a Channel ID Setting a Scsi Channel’s ID Host Channel Viewing IDsAdd Channel Primary Controller ? Add CHL=0 ID=2 Primary Ctlr ? Deleting a Channel ID Setting a Scsi Channel’s Primary ID Drive ChannelDelete Channel Delete ID=2 Primary Ctlr ? Setting Channel Bus Terminator Setting a Scsi Channel’s Secondary ID Drive Channel Scsi Terminator Enabled CHL=0 Disable Terminator ? Setting Transfer Speed Viewing and Editing Scsi Target Drive Channel Setting Transfer WidthView and Edit Scsi Channels CH1=Drive PID=7 View and Edit Scsi Target Slot Number Maximum Synchronous Transfer ClockMaximum Transfer Width Parity Check Disconnecting SupportMaximum Tag Count Max Xfer Narrow Only? Restore to Default Setting Changing Password Change PasswordSystem Functions Mute Beeper Disabling Password Reset ControllerShutdown Controller ShutdownComplete Reset Ctlr? Restore Nvram from DisksController Maintenance Save Nvram To Disks Restore Nvram From Disks Controller Parameters Password Validation TimeoutController Name LCD Title Display Controller Name Controller Date and Time Time ZoneTime Zone Date and Time GMT +0800Date and Time MMDDhhmmYYYY Scsi Drive Low-level Format Scsi Drive UtilitiesView and Edit Scsi Drives =1 I=1 8683MB Scsi Drives Utilities Drive Read/Write Test Scsi Drive Read/Write Test PC Graphic Ansi Mode Transfer Rate IndicatorTerminal VT-100 Mode Cursor Bar Main Menu Quick Installation Terminal Screen Messages Status SizeMB Name Column C Chl SlotSize MB Speed PID Scsi Channel’s Status Term CurSynClkCurWid Controller voltage and temperature monitoring Viewing Event Logs on the Screen Terminal Operation Terminal Operation Limitations Optimization Mode and Stripe Size Viewing the Connected Drives Creating a Logical Drive Choosing a RAID Level Logical Drive Assignments Assign Spare Drives Initialization Mode Terminal Operation Creating a Logical Volume Partitioning a Logical Drive/Logical Volume Infortrend Mapping a Logical Volume to Host LUN Infortrend Adding Local Spare Drive Assigning Spare Drive, Rebuild Settings Viewing and Editing Logical Drive and Drive Members 1000MB Rebuilding a Logical Drive Applies to RAID1, 3, Iteration Count Edit Host-ID/WWN Name List Viewing or Deleting LUN Mappings Scanning New Drive Identifying Drive Slot Number Drive Entry Terminal Operation Viewing and Editing Scsi Channels Viewing and Editing Scsi IDs Host Channel Deleting an ID Setting a Primary Controller’s Scsi ID Drive Channel Setting Channel Terminator Setting a Secondary Controller’s Scsi ID Drive ChannelSetting a Transfer Speed Drive Channel Host Channel Setting the Transfer Width Viewing and Editing Scsi Target / Drive Channel Maximum Synchronous Transfer Clock Data Rate Infortrend System Functions Setting a New Password Changing the Password Disabling the Password Controller Parameters Saving Nvram to Disks Password Validation Timeout Terminal Operation Set Controller Date and Time Drive Information Scsi Drive UtilitiesView Drive Information Scsi Drive Low-level Format Scsi Drive Read/Write Test Fibre Operation Overview Major Concerns Fibre Operation Supported Features Fibre ChipMultiple Target IDs In-band Fibre and S.E.S. Support Drive IDs Configuration Host and Drive Parameters Channel ModePrimary and Secondary Controller IDs Redundant Controller Cache Coherency Channel RCC Channel View Channel WWNLimitation View Device Port Name List Wwpn View and Edit Fibre DriveUser-Assigned ID Scan Scsi Drive View and Edit Host-Side Parameters View and Edit Drive-Side Parameters Drive-Side Dual Loop Fibre Channel Connection Type Controller Unique Identifier Controller Communications over Fibre Loops Fibre Operation Storage Pool Multi-Host Access Control LUN Filtering Host-LUN Mapping Creating LUN Masks WWN Name List Logical Unit to Host LUN Mapping Infortrend Filter Type Include or Exclude LUN Mask ID Range Configuration Access Mode Read Only or Read/Write Sample Configuration Configuration Procedure Infortrend Fault Prevention Advanced ConfigurationsA.R.T Replace after Clone Clone Failing Drive Perpetual Clone Advanced Configurations Introduction Detect Only DisablePerpetual Clone Clone + Replace Configuration Procedure Enabling the S.M.A.R.T. FeatureExamining Whether Your Drives Support S.M.A.R.T Detect Only Setting Using S.M.A.R.T. Functions Detect, Perpetual Clone Setting Detect, Clone+Replace Function Host-side and Drive-side Scsi Parameters Host-side Scsi ParametersForeword Scsi Channel, Scsi ID and LUN Number of Tags Reserved for each Host-LUN Connection Maximum Queued I/O Count LUNs per Host Scsi IDLUN Applicability What is In-band? Peripheral Device TypeIn-band Scsi or Fibre SCO Peripheral Device Type Parameters Device Type Setting Peripheral Device Type SettingsCylinder/Head/Sector Mapping Cylinder/Head/Sector Mapping under Sun Solaris Configuring Sector Ranges/Head Ranges/Cylinder Ranges Scsi Motor Spin-Up Drive-side Parameters Scsi Reset at Power-Up Scsi I/O Timeout Disk Access Delay Time Maximum Tag Count Tag Command Queuing Detection of Drive Hot Swap Followed by Auto Rebuild SAF-TE and S.E.S. Enclosure MonitoringPeriodic Drive Check Time Periodic Auto-Detect Failure Drive Swap Check Time Idle Drive Failure Detection Advanced Configurations Monitoring and Safety Mechanisms Dynamic Switch Write-PolicyView Peripheral Device Status Controller Auto-Shutdown Event Trigger Option Rebuild Priority Disk Array Parameters Verification on Writes Redundant Controller 10-1 Operation Theory Considerations Related to Physical Connection Setup FlowchartSCSI-Based Controllers 10-2 Infortrend Redundant Controller 10-3 Fibre-Based Controllers 10-4 Infortrend Grouping Hard Drives and LUN Mapping Redundant Controller 10-5 Logical Drive, Logical Volume, and Logical Partitions System Drive Mapping Primary and Secondary IDs10-6 Infortrend Redundant Controller 10-7 Mapping Fault-Tolerance What Is a Redundant Controller Configuration?10-8 Infortrend Redundant Controller 10-9 How does Failover and Failback Work? Channel Bus ID Mapping Status Normal Operation ID Mapping Status Controller Failed10-10 Infortrend Controller Failover and Failback Active-to-Active ConfigurationReplacing a Failed Unit Auto-Failback Redundant Controller 10-12 Traffic Distribution and Failover Process Controller Failure SymptomsConnection 10-13 Infortrend Requirements Preparing ControllersCabling Requirements Controller RCC cable Redundant Controller 10-15 Controller Settings Limitations Configurable ParametersPrimary or Secondary 10-16 Infortrend Battery Support Active-to-Standby ConfigurationCache Synchronization Redundant Controller 10-17 10-18 Infortrend Redundant Controller 10-19 Configuration Enable Redundant Controller Redundant Configuration Using Automatic SettingAutoconfig Via Front Panel Keypad Redundant Configuration Using Manual Setting View and Edit Peripheral DevRedundant Controller 10-21 Starting the Redundant Controllers RC connecting ENT to cancelCreating Primary and Secondary ID 10-22 Infortrend CHL=0 ID=0 Primary Ctlr Add Channel Set Sec. Ctlr Idna to ID 6?View and Edit Logical Drives Redundant Controller 10-23 10-24 Infortrend Mapping a Logical Drive/Logical Volume to the Host LUNs When and how is the failed controller replaced? What will happen when one of the controllers fails?Front Panel View of Controller Failure Redundant Ctlr Failure Detected 10-26 Infortrend Via Terminal Emulation Redundant Controller 10-27 10-28 Infortrend Redundant Controller 10-29 Assigning Logical Drives to the Secondary Controller 10-30 Infortrend When and How Is the Failed Controller Replaced? Terminal Interface View of Controller FailureRedundant Controller 10-31 10-32 Infortrend Redundant Controller 10-33 Forcing Controller Failover for Testing Secondary Controller RS-232 RCC Status Redundant Controller Communications ChannelRemote Redundant Controller Cache Synchronization on Write-Through View and Edit Logical Drives Record of Settings 11-1 11-2 Infortrend Record of Settings 11-3 View and Edit Logical Volumes 11-4 Infortrend View and Edit Host LUN’s Record of Settings 11-5 11-6 Infortrend View and Edit Scsi Drives View and Edit Scsi Channels Record of Settings 11-7 View and Edit Configuration Parameters Communication Parameters11-8 Infortrend Host Side Scsi Parameters Record of Settings 11-9 11-10 Infortrend Disk Array Parameters View and Edit Peripheral Devices Record of Settings 11-11 Save Nvram to Disk, Restore from Disk RAID Security Password11-12 Infortrend Array Expansion What is it and how does it work? Added Capacity Array Expansion Expand Logical Drive Re-Striping Add-Drive Procedure Mode 1 Expansion Adding Drives to a Logical Drive 12-5 12-6 Expansion by Copy & Replace Copy and Replace Procedure 12-8 12-9 Making Use of the Added Capacity Expand Logical Drive 12-10 Expand Logical Volume Example Limitations When Using Windows 12-13 12-14 12-15 12-16 12-17 Start Navigation Map Create View and Edit Scsi Drives View and Edit Scsi Channels View and Edit Configuration Parameters View and Edit Peripheral Device End Appendix Basic RAID Management Advanced Features 128 Caching Operation Caching Optimization RAID Expansion Fibre Channel Support Redundant Controller A.R.T. Support Data Safety System Security Environment Management Remote Manageability User Interface Others JBOD-Specific Redundant Controller Rolling Firmware Upgrade Upgrading FirmwareSystem Functions Upgrading Firmware Establish the In-band Scsi connection in RAIDWatch Manager Redundant Controller Firmware Sync-version Upgrade Both Boot Record and Firmware Binaries Upgrade the Firmware Binary Only Upgrading Firmware Using RS-232C Terminal Emulation Upgrading Both Boot Record and Firmware Binaries Upgrading the Firmware Binary Only Event Index Controller EventEvent Messages Notification Drive Scsi Channel/Drive Error General Target Events Logical Drive Event I2C Device Notification SAF-TE Device 3fa2 Notice Controller FAN Back On-Line RPM Happens? Controller Event Happens? What to Do? Happens? What to Do? Drive Scsi Channel/Drive Error Received Sensekey Sensecode Happens? What to Do? Line LCD = I= Unexpected Sense Rec What to Do? What to Press ESC to clear the message Red Path for C Failure Detected Logical Drive Event Infortrend Happens? Infortrend Event Type General Target Events Controller On-board Event Type Check I 2C cable connection and contact your system supplier 3F22 Peripheral Device Alert high/low threshold Fan Speed Event Messages SES Device Line LCD . Temp Sensor Device Unknown Status What Happens? What to Line LCD . Current Sensor Device Not Supported Infortrend What Happens? Temperature back to non-critical level Controller Self Diagnostics Contlr FAN Back On-Line Happens? SES Device Alert Alert Notification What UPS device failure detected Index-1 Index Index-2 Infortrend Index-3 Index-4 Infortrend Index-5 Nvram Index-6 Infortrend RCC Index-7 Index-8 Infortrend Zmodem