Promise Technology m310p, m210p manual Ranges of Disk Array Expansion

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Chapter 7: Technology Background

Important

The Target disk array may require more disk drives than the Source disk array

If the Target disk array requires an EVEN number of disk drives but the Source disk array has an ODD number, ADD a disk drive as part of the migration process

You cannot reduce the number of disk drives in your disk array, even if the Target disk array requires fewer disk drives than the Source disk array

RAID 1 (mirroring) works with two drives only. Only a single- drive RAID 0 disk array or a single-drive JBOD can migrate to RAID 1. Other RAID Levels use too many drives to migrate

You cannot migrate a disk array when it is Critical or performing activities such as Synchronizing, Rebuilding, and

PDM

Ranges of Disk Array Expansion

There are limitations to how large you can expand a disk array, depending on the size of your current disk array.

The current SCSI HBA cards and PC Operating Systems support a 10-byte LBA format. This means that a disk array can have up to 4 billion address blocks or sectors.

Multiply the number of blocks by the sector size to find the capacity of a disk array:

4,000,000,000 blocks x 512 bytes per sector = 2,048,000,000,000 bytes of data for a 2TB drive.

Note that you cannot change the size of the sectors nor can you increase the number of address blocks above 4 billion.

As a result, there are range limits imposed upon disk array expansion as shown in the table above. For example:

You can expand a 2.5 TB disk array up to 4 TB

You can only expand a 1.9 TB disk array up to 2 TB

See the chart below.

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Contents Vtrak Trademarks CopyrightImportant data protection information RecommendationsContents Management with WebPAM PROe Management with the CLU Technology Background MaintenanceSupport TroubleshootingAppendix a Useful Information IndexVTrak M310p, M210p Product Manual Viii About This Manual IntroductionVTrak M310p front view M210p is similar OverviewFeature Benefit Features and BenefitsArchitectural Description Maximum performance in Multi-Threaded RAID SpecificationsFCC Statement Unpack the VTrak InstallationRackmounted VTrak M310p M210p is similar Mount VTrak in a RackInstallation Install Disk Drives VTrak M310p/M210p drive carrier mounting holes Drive Numbering NIC Connect Network and Data CablesSerial connector for VTrak M310p/M210p Set Up Serial Cable ConnectionsVTrak M310p/M210p front panel LED display Connect the PowerVTrak M310p, M210p Product Manual VTrak Setup with CLI or CLU SetupCLI Administrator@cli net -a mod -t mgmt -s dhcp=enableSystem Date and Time CLUManagement Port Exit the CLU Log-in to WebPAM PROe VTrak Setup with WebPAM PROeRegular Connection Secure ConnectionSetup VTrak M310p, M210p Product Manual Language Selection Automatic Create a Disk ArrayExpress VTrak M310p, M210p Product Manual Advanced VTrak M310p, M210p Product Manual Setup VTrak M310p, M210p Product Manual Setup VTrak M310p, M210p Product Manual Additional Logical Drives Internet Connection using WebPAM PROeLog-out of WebPAM PROe VTrak M310p, M210p Product Manual Management with WebPAM PROe VTrak Status IndicatorsState LEDs Dark Steady Flashing Amber Red Green Audible Alarm Drive Status IndicatorsLEDs State Steady Flashing Amber Red GreenHttp//192.168.10.148 Log-in/Log-outHttps//192.168.10.148 Management with WebPAM PROe WebPAM PROe Opening Screen Graphic User Interface Function HeaderLanguage Selection ViewContact Us Storage NetworkTree View Management Window SubsystemsEvent Frame Subsystem Subsystem SettingsSubsystem Information View Events Subsystem EventsClear Events Save EventsBackground Activities Change Background SettingsStart Background Function View Scheduled Activities SchedulerSchedule an Activity Delete an Activity View Lock Status LockSet Lock Renew LockRelease Lock Administrative ToolsUser Management User Settings AdministratorUser Information User Event Subscription User Settings UserSmart List of User Notification EventsUser Password Users User Password AdministratorCreate a User List of User Privileges Delete a UserUser Sessions Network Management Scsi Management Scsi Channel SettingsScsi Channel Information Scsi Target Information Storage ServicesView LUN Map Edit a LUN Map Software ManagementLUN Mapping Parameters Send a Test Message Change Email SettingManual Start, Restart, Stop Web Server Click on the Web Server Setting linkTelnet Change Start SettingChange Start Setting Snmp CIM Netsend CIM Service SettingsAdd Recipients Import ExportDelete Recipients Firmware Update Clear Statistics Restore Factory DefaultsShutdown Shutdown and RestartMonitor the Shutdown Restart the SubsystemMonitor the Restart ControllersController Information ControllerController Statistics Clear Statistics Controller SettingsIdentify Enclosure EnclosuresEnclosure Information EnclosureFRU VPD Enclosure SettingsBattery Recondition BatteryBuzzer Change Buzzer SettingsSilence Buzzer Physical Drives Physical Drives SettingsIdentify a Physical Drive Physical Drive Information Physical DriveAdvanced Physical Drive Information Identify a Physical Drive Physical Drive StatisticsClear Physical Drive Conditions Physical Drive SettingsForce a Physical Drive Offline/Online Physical Drive Media Patrol Disk ArraysCreate a Disk Array Express Create a Disk Array AutomaticManagement with WebPAM PROe Disk Array Creation Create a Disk Array AdvancedLogical Drive Creation Summary Delete a Disk ArrayDisk Array Information Disk ArrayLogical Drives in the Disk Array Physical Drives in the Disk ArrayDisk Array Status Create a Logical Drive Disk Array SettingsManagement with WebPAM PROe Disk Array Migration Delete a Logical DriveDisk Array Rebuild Manual Rebuild Disk Array Background ActivityView Progress of Background Function TransitionTransport Logical DrivesLogical Drive Status Logical Drive Information Logical DriveLogical Drive Statistics in alphabetical order Logical Drive SettingsLogical Drive Initialization Logical Drive Background ActivityLogical Drive Synchronization Logical Drive Redundancy CheckLogical Drive Check Table Logical Drive PDMLUN Mapping Parameters Logical Drive LUN SettingsSpare Drives Delete Spare Drive Create Spare DriveSpare Drive Spare Check All Spare DrivesSpare Drive Information Locate a Spare Drive Spare Drive SettingsSpare Check Individual Spare Drive Logical Drive Summary VTrak M310p, M210p Product Manual 118 Management with the CLU State LEDs Dark Steady Flashing Amber Red Green Audible Alarm Serial Connection CLU ConnectionTelnet Connection Telnet 192.168.1.56123 Exit the CLU CLU Function Map 126 127 128 129 130 131 Subsystem Management Quick SetupAlias Media PatrolController Management System Date and TimeAlias Controller SettingsPhysical Drive Coercion Enclosure Management Power Supply UnitsEnclosure Status Enclosure ManagementTemperature Sensors Enclosure SettingsBlowers Voltage SensorsBatteries Temperature ThresholdsPolling Interval Physical Drive Management Global Physical Drive SettingsLocate Enclosure Write CacheIndividual Physical Drive Settings Locate Physical Drive Force Physical Drive Offline/OnlineDisk Array Management Highlight Save Settings and Continue and press Enter Delete a Disk Array Disk Array Information Disk Array Settings and FunctionsMedia Patrol RebuildPredictive Data Migration MigrationCreate a Logical Drive Locate Disk ArrayAccept Incomplete Array Delete a Logical Drive Logical Drive Management Logical Drive Settings and FunctionsLogical Drive Information Write Cache PolicyRedundancy Check InitializationNetwork Management Management Port SettingsLocate Logical Drive ManualScsi Management Channel SettingsChannel Information Target Information Background ActivityBackground Activities List Background Activity SettingsRuntime Events Event ViewerNvram Events Spare Drive Management Additional Info and ManagementCreate New Spare Drive Delete Spare Drive LUN MappingCreate New User User Settings Display Name and Email Address PasswordUser Settings Privilege and Status Delete User Webserver 161 Snmp Trap Sinks Highlight Create New Message Recipient and press Enter Netsend RecipientsFlash through Tftp Shutdown over Serial Shutdown over TelnetRestart over Telnet Restart over Serial BuzzerMaintenance Tftp Server Firmware Update WebPAM PROeYour PC Restart VTrak Firmware Update CLU VTrak M310p/M210p power supply Replace Power SupplyReplace Cooling Unit Blower Electrical connector 174 Replace Cache Battery Remove this screw Maintenance Replace RAID Controller Introduction to RAID Technology BackgroundRAID 0 Striping interleaves data across multiple drives RAID 0 StripeData Mirror Disk Drives RAID 1 MirrorRAID 1E Enhanced Mirror RAID 5 Stripes all drives with data and parity information RAID 5 Block and Parity StripeRAID 6 Block and Double Parity Stripe RAID 10 Mirror + Stripe RAID 50 Axles RAID 50 Striping of Distributed ParityArray No. of Drives No. of Axles RAIDPer Axle Advantages Disadvantages Choosing a RAID LevelRAID 1E 190 Sector Size Stripe SizeRead Cache Policy Cache PolicyWrite Cache Policy Capacity CoercionCache Line Size Hot Spare Drives InitializationRAID Level Migration Partition and Format the Logical DriveAdd Lose From Increase Redundancy CapacityPerformance Ranges of Disk Array Expansion Current LD Size Maximum LD Sector Size Expansion Size Media PatrolCreate a New Logical Drive PDM Triggers Predictive Data Migration PDMExample Transition201 Manual Transition Automatic TransitionVTrak is Beeping TroubleshootingFront Panel LEDs Display Amber or RedVTrak M310p/M200p disk carrier LEDs Drive Status IndicatorsBack of Enclosure Dark Green Amber Red Fan LED on a VTrak M310p/M210p cooling unitGreen Amber Flashing CLU Reports a ProblemPDM WebPAM PROe Reports a Problem 211 Event Notification Response BatteryEvent Action Battery reconditioning has Cache BlowersController Drive Interface Controller Disk ArrayEvent Log EnclosureHost Interface Controller Logical Drive Media Patrol PDM Physical Disk Physical disk negotiation RAID Level Migration PSU FansRebuild Resource Redundancy CheckSpare Check Stripe Level Migration Spare DrivesSynchronization SubsystemSystem VTrak TransitionWatermark Critical & Offline Disk Arrays When a Disk Drive FailsWith a Hot Spare Drive Rebuild Operation Without a Hot Spare Drive230 Enclosure Problems Overheating Power Supplies Scsi Connections Connection ProblemsTermination Network Connections Serial ConnectionsAmber Green Flashing Green Unsaved Data in the Controller CacheHow can I tell when the VTrak has fully booted? Frequently Asked QuestionsWhy does VTrak come with a Command Line Utility? What kind of disk drives can I use with VTrak?Are logical drives on VTrak limited to 2.199 terabytes? Can VTrak run using just one power supply? Technical Support ServicesContact Technical Support How can I be sure everything is working OK on the VTrak?Europe, Africa, Middle East United StatesGermany ItalyChina TaiwanDisclaimer of other warranties Limited WarrantyYour Responsibilities Returning Product For RepairOr retailer Pin Signal Serial Connector PinoutLoad MIB Files Snmp MIB FilesIndex 212 PROe 25 PDM 30, 110, 144 RAID 5 183 Create 113, 155 delete 113 253 VTrak M310p, M210p Product Manual 254
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m210p, VTrak external disk array subsystem, m310p specifications

Promise Technology has established itself as a strong player in the storage solutions market, particularly with its VTrak series of storage systems. Among the notable products in this lineup are the VTrak M310P and M210P models, designed to deliver efficiency, scalability, and high performance for businesses of all sizes.

The Promise VTrak M310P is a high-performance storage solution that emphasizes speed and versatility. This model supports both SAS and SATA drives, enabling enterprises to tailor their storage needs based on workload requirements. It is built with an advanced RAID engine that provides multiple RAID levels, including RAID 0, 1, 5, 6, 10, 50, and 60, ensuring data redundancy and protection against drive failures. The M310P can accommodate up to 96TB of raw storage when fully populated, catering to environments that require large amounts of data retention and quick access times.

Key features of the VTrak M310P include the intuitive management interface, which simplifies storage provisioning and monitoring. This model also incorporates Promise's innovative "HyperRAID" technology, which enhances performance by optimizing I/O operations and providing real-time analytics and reporting. Additionally, the M310P supports a variety of host connection interfaces, including iSCSI, Fibre Channel, and InfiniBand, allowing seamless integration into existing infrastructure.

On the other hand, the VTrak M210P is tailored for a slightly different audience, focusing on small to medium-sized businesses that require reliable and cost-effective storage solutions. The M210P retains several high-end features found in its bigger counterpart while offering a more budget-friendly option. This model also supports a mix of SAS and SATA drives and includes RAID capabilities similar to the M310P for data protection.

The M210P provides a robust set of management tools designed for ease of use, including automated alerts and comprehensive reporting capabilities. Its compact design and reliable performance make it ideal for remote office locations or data centers where space is a premium. Furthermore, the model incorporates advanced power management features to reduce energy consumption without compromising performance.

Both the M310P and M210P are built with scalability in mind, allowing businesses to easily expand their storage capacity as data needs grow. With a focus on durability, performance, and advanced technology, Promise Technology’s VTrak systems are well-positioned to meet the evolving demands of modern data storage. Whether for large enterprises or smaller organizations, these products offer solutions that enhance productivity and ensure data integrity.