Promise Technology TX8, TX4 user manual Jbod Spanning

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UltraTrak100 TX4 and UltraTrak100 TX8 User Manual

JBOD (SPANNING)

In a Spanning array, the disk array capacity is equal to the sum of all drives, even if the drives are of different capacities. Spanning stores data onto a drive until it is completely filled then proceeds to store data on to the next drive in the array.

There are no performance or fault tolerance array features in this type of array. When a disk member fails, the entire array is offline.

Figure A6: Spanning uses full capacity of drives

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Contents ULTRATRAK100 TX4 ULTRATRAK100 TX8 Trademarks CopyrightImportant Data Protection Information Radio Frequency Interference Statement Table of Contents RAID Page Introduction Architectural DescriptionFeatures and Benefits Feature BenefitInstall Hard Drives ConfigurationGetting Started Unpack ULTRATRAK100UltraTrak100 Disk Drive Access TX4 Shown Connecting the Scsi Cables Back of UltraTrak100 TX4 see for TX8Daisy Chaining Several UltraTrak100s Together Connect Power Cable and Switch Power on Assign a Scsi IDConfigure the ULTRATRAK100 Press SEL to Save Changes Choosing a RAID Level Advantages DisadvantagesCharacteristics/Advantages Disadvantages RAID 0+1Partition and Format the Array JbodMaintenance Drive Status IndicatorsIndicator Color Meaning Critical & Offline ArraysWhen a Disk Drive Fails REBUILDING/SYNCHRONIZING Fault Tolerant ArraysReplacing a Disk Drive Module Drive Replacement Drive CarrierConnecting Cables to Disk Drive Replacing a Power Supply Module TX8 onlyBack of UltraTrak100 TX8 ULTRATRAK100 Front Panel Interface Type of Interface Name CommentsError Mode Configuration ModeLCD Messages Array FunctionalConfigure Scsi View Status Configure Array Configure CacheView Status View Controller Info View Cache StatsView Array Information View EnclosureView Controller Information Temperature 30C/86F Array 0 Size 12GBRAID 0 Functional 5009 RPMCreate/Cancel Auto Array Setup Press SEL to Create Press Exit to Cancel What you can doView Drive Assignments Define Array Delete ArrayNo Free Disk What you can do Maxtor Asng In Ary IBM Asng In AryRAID Level 4KB 8KB Maxtor Free IBM Assigned Maxtor FreeWipe out disk Synchronize Array Disable Buzzer Array ID Rebuild/Sync Pri. LowWrite Cache Write Cache What you can doWrite Back Write Thru What you can do Write BackMode ID SelectedScsi ID Press Or to move these items on the LCD What you can doTechnical Support Services Contacting Promise SupportUSA Tech Support Center European Tech SupportPacific Rim Sales Office China OfficeLimited Warranty Disclaimer of Other WarrantiesPage Returning Product for Repair USA & Canada Your Responsibilities Appendix a Technology Background Introduction to RAIDRAID 1 Mirroring RAID 0+1 STRIPING/MIRROR RAID 3 Block Striping with Parity Drive RAID 5 Block and Parity Striping Jbod Spanning Appendix B Frequently Asked Questions Why can’t I see the drives on the UltraTrak100 under FDISK?