Add physical drives maximum | Promise Technology EX8650A, EX4650

Chapter 6: Technology Background

RAID 5

A RAID 5 Source logical drive can migrate to the following Target logical drives:

Target	Requirements

RAID 0	None.

RAID 1E	None.

RAID 5	Add physical drives. 16 maximum.

RAID 6	4 physical drives minimum, 16 maximum.

RAID 10	4 physical drives minimum.
	Even number of physical drives.

RAID 50	6 physical drives minimum, 16 per axle maximum.

RAID 60	8 physical drives minimum, 16 per axle maximum.

RAID 6

A RAID 6 Source logical drive can migrate to the following Target logical drives:

Target	Requirements

RAID 6	Add physical drives. 16 maximum.

RAID 60	8 physical drives minimum, 16 per axle maximum.

179

Image 191

Promise Technology EX8650A, EX4650A user manual Add physical drives maximum

Contents

Supertrak Recommendations CopyrightTrademarks Important data protection information Radio Frequency Interference Statement Page Contents SuperBuild Utility Installing Drivers, SuperBuild Utility, Management with WebPAM PRO, Management with WebPAM PRO, Management with WebPAM PRO, Contents 209 Appendix a Partition and Format Appendix B UpgradesTechnology Background, Support About This Manual Introduction Hot-Swapping Product OverviewXOR Microprocessor Browser Support WebPAM PRO Management SoftwareOperating System Support Advanced Hardware Design Features Benefits Key Features and Benefits Compatibility Features Benefits Compatibility SpecificationsFeatures Benefits Unpacking the SuperTrak Installation Installing the SuperTrak Card SuperTrak EX4650 card SuperTrak EX8650 card + R G + + - + SuperTrak SAS Port Enclosure ID Range Drive ID Range SAS Connections and ID NumbersScenario 1 Virtual Enclosure Sgpio Scenario 5 SAS Expanders Scenario 2 Virtual Enclosure Host PCScenario 3 External Enclosures Daisy Chain Scenario 4 External Enclosures Parallel Level Number of Drives Choosing the Physical Drives Creating a Logical Drive Page Installation Page Installation Operating System Support Installing WebPAM PROUtility Server Agent Browser Support Internet Browser Introduction dialog box Installing WebPAM PRO onto a Windows PC or Server License Agreement dialog box Setup Type dialog box Choose Destination Location dialog box SSL Security Options dialog box Ready to Install dialog box Install Complete dialog box Installing WebPAM PRO onto a Linux PC or Server License Agreement dialog box Choose Install Product dialog box Choose Install Folder dialog box WebPAM PRO Agent Configuration dialog box SSL Security Options dialog box WebPAM PRO Utility Server Configuration dialog box Register On-line dialog box Regular Connection Logging into WebPAM PROLogging in at the Host PC Logging in over the Network Https//192.168.10.2288443/promise Login Screen Click the Add Subsystem/Host tab Setting up WebPAM PRO Add Subsystem/Host tab Installing Drivers Driver Diskette for Linux Driver Diskette for WindowsUSB Memory Stick for Windows Windows Vista New OS Installation Existing System Confirming Driver Installation Windows Server Existing System Windows XP Existing System Windows Existing System Type cd umount /mnt/floppy Red Hat Linux Enterprise 4.4 SuSE Linux Enterprise SuperBuild Utility SuperTrak Bios SuperTrak Bios screen SuperTrak Bios screen, logical drive offline SuperBuild Main Menu Main Menu Controller Selection Controller Information Viewing Physical Drive Information Physical Drive ManagementViewing Physical Drives Managing Physical Drive Problems Viewing Disk Array Information Disk Array ManagementViewing Disk Arrays Creating a Disk Array Deleting a Disk Array Changing Disk Array SettingsRebuilding a Disk Array Viewing Logical Drive Information Logical Drive ManagementViewing Logical Drives Write Cache Policy Choose from Write Back or Write Through Creating a Logical Drive Initializing a Logical Drive Deleting a Logical Drive Changing Logical Drive Settings Identifying a Critical Logical Drive Managing Logical Drive Problems Manual Rebuild Rebuilding the Logical DriveSpare Drive Available No Spare Drive Available Identifying an Offline Logical Drive Finding the Failed Physical Drive RAID 1, 5, 6, 10, 50 RAID Creating a Spare Drive Spare Drive ManagementViewing Spare Drives Viewing Spare Drive Information Changing Spare Drive Settings Deleting a Spare Drive Background Activity Viewing Nvram Events Event LogViewing RAM Events Clearing the Event Logs Synchronizing Time with an Embedded Site Setting the Time ZoneTime Sync Buzzer MiscellaneousSAS Ready LEDs Sgpio Backplane Enabling or Disabling the Buzzer Page Management with WebPAM PRO Login Screen Management with WebPAM PRO WebPAM PRO interface Accessing the Interface Using Tree View Using the Header WebPAM PRO Tree View Using Management View Viewing the Event Frame Choosing a Display Language Viewing the Storage Network Saving the Event FrameDeleting the Event Frame Storage Network appears in Tree View Logging out of WebPAM PRO Viewing User Information Making User SettingsManaging Users Changing Your Own Password Making Your Own User SettingsChanging a User’s Password List of User Privileges Creating a UserDeleting a User Management with WebPAM PRO Adding a Subsystem or Host Working with Subsystem/Host ManagementViewing Subsystem/Host Information In-Band versus Out-of-Band Setting User PrivilegeDeleting a Subsystem or Host Page Changing Web Server Settings Managing Software ServicesViewing Service Status Linux Setting up Email ServiceRestarting the Tomcat Server Windows Sending a Test Email Message Setting up Extended SmtpSetting Event Frame Refresh Time Changing CIM Server Settings Changing CIM Client Settings Refreshing the WebPAM PRO Screen Setting User RightsManaging the Host Viewing Host Information Clearing Statistical Data Managing the SubsystemViewing Subsystem Information Click the Clear Statistics link Setting an Alias for the SubsystemUpdating the Firmware Severity Definitions Checking Subsystem HealthViewing the Runtime Event Log Saving the Runtime Event Log Viewing the Nvram Event Log Clearing the Runtime Event Log Viewing Current Background Activities Saving the Nvram Event LogClearing the Nvram Event Log Making Background Activity Settings Running PDM Running Background ActivitiesRunning Media Patrol Scheduling an Activity Viewing Scheduled Activities 112 Deleting a Scheduled Activity Viewing System Configuration 114 Viewing Controller Information Managing the ControllerViewing Controllers Information 116 Viewing Controller Statistics Making Controller Settings Clearing an Orphan Watermark Viewing Battery Information Silencing the Buzzer Making Buzzer SettingsTesting the Buzzer Viewing Buzzer Information Viewing Enclosure Information Managing Enclosures Virtual or Third Party Enclosures Managing Physical DrivesViewing a List of Physical Drives Locating a Physical Drive Sata Drives SAS Drives Making Global Physical Drive SettingsPromise Enclosures Viewing Physical Drive Statistics Making Physical Drive SettingsAdjustable Items Clearing Stale and PFA Conditions Forcing a Physical Drive Offline or Online 126 Locating a Disk Array Managing Disk Arrays 128 Creating a Disk Array Automatic Configuration Creating a Disk Array Express Configuration 131 Logical Drive Creation Creating a Disk Array Advanced ConfigurationDisk Array Creation Summary Disk Array Operational Status Physical Drive Status Making Disk Array Settings 136 137 Migrating a Disk Array Rebuilding Manually Rebuilding Automatically Running PDM on a Disk Array Running Media Patrol on a Disk Array Preparing a Disk Array for Transport Transitioning a Disk Array 142 Logical Drive Status Managing Logical DrivesViewing Information for All Logical Drives Logical Drive Synchronization Locating a Logical Drive Viewing Logical Drive Statistics 146 Viewing the Logical Drive Check Table Running Redundancy Check 148 Viewing a List of Spare Drives Managing Spare Drives 150 Deleting Spare Drive Making Spare Drive Settings Running Spare Check Viewing Individual Logical Drive Information Working with the Logical Drive SummaryViewing a List of All Logical Drives 154 Introduction to RAID Technology Background RAID 0 Striping interleaves data across multiple drives RAID 0 Stripe RAID 1 Mirrors identical data to two drives RAID 1 Mirror Enhanced Data Mirrors Physical Drives RAID 1E Enhanced Mirror RAID 5 stripes all drives with data and parity information RAID 5 Block Striping with Distributed Parity RAID 6 stripes all drives with data and dual parity RAID 6 Block and Double Parity Stripe Data Stripe Mirror Physical Drives RAID 10 Mirror / Stripe Component Minimum Maximum RAID 50 Striped Distributed Parity RAID 50 Axles 3,3,3 RAID 60 is a combination of RAID 6 and RAID RAID 60 Striping of Double Parity RAID 60 Axles 5,5 10,10 4,4,4 167 Advantages Disadvantages Choosing a RAID Level RAID 1E 170 High Read data transaction rate Choosing Sector Size Choosing Stripe Block Size Logical Drive Size Sector Size Choosing Cache PolicyTB Limitation Write Cache Policy Capacity CoercionRead Cache Policy Hot Spare Drives Initialization RAID Level Migration Partition and Format the Logical Drive Target Requirements None Add physical drives maximum RAID 10 must have less than 16 physical drives Physical drives maximum PDM Ranges of Disk Array Expansion Current LD Size Maximum LD Sector Size Expansion Size Delete and Recreate PDM Triggers Media PatrolPredictive Data Migration PDM Drive Failure and Automatic Rebuild Transition 186 Manual Transition Automatic Transition 188 Critical & Offline Logical Drives When a Physical Drive Fails 190 Rebuild Operation With a Hot Spare DriveWithout a Hot Spare Drive 192 How can I change the resources that the SuperTrak uses? Frequently Asked QuestionsPre-Installation Speed, Device Types, Capacity, Cabling Will Acpi work with HDDs on the SuperTrak EX Series? Drive IssuesCan I use Atapi devices on the SuperTrak EX Series? Support Why can’t I make a dedicated spare drive in WebPAM PRO? Installation Issues Capacity, BootingPost-Installation United States Technical Support ServicesWhy can’t I run WebPAM PRO in Konqueror? Contacting Technical Support Italy NetherlandsGermany China Limited WarrantyTaiwan Disclaimer of other warranties Your Responsibilities Returning the Product For Repair Or retailer Appendix a Partition and Format Click the Next button to start the Wizard Appendix a Partition and Format 206 Downloading Bios and Firmware File Updating SuperTrak Bios and Firmware Logging into WebPAM PRO Downloading the WebPAM PRO Update FileInstalling the WebPAM PRO Update File Updating WebPAM PRO Appendix C Battery Backup Unit Installing the BBU SuperTrak EX Controller 212 Numerics Index 214 146 Axles 66 Capacity 18, 65, 132 List 59 150 List 73 Logical drive 65, 67, 133