Promise Technology TX4, TX8 user manual Raid

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Appendix A - Technology Background		41
Introduction to RAID		41
RAID 0	– Striping	41
RAID 1	– Mirroring	42
RAID 0+1 – Striping/Mirror		43
RAID 3	– Block Striping with Parity Drive	44
RAID 5	– Block and Parity Striping	45
JBOD (Spanning)		46
Appendix B - Frequently Asked Questions		47

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Contents ULTRATRAK100 TX4 ULTRATRAK100 TX8 Important Data Protection Information CopyrightTrademarks Radio Frequency Interference Statement Table of Contents RAID Page Architectural Description IntroductionFeature Benefit Features and BenefitsConfiguration Install Hard DrivesGetting Started Unpack ULTRATRAK100UltraTrak100 Disk Drive Access TX4 Shown Back of UltraTrak100 TX4 see for TX8 Connecting the Scsi CablesDaisy Chaining Several UltraTrak100s Together Assign a Scsi ID Connect Power Cable and Switch Power onConfigure the ULTRATRAK100 Press SEL to Save Changes Advantages Disadvantages Choosing a RAID LevelRAID 0+1 Characteristics/Advantages DisadvantagesJbod Partition and Format the ArrayDrive Status Indicators MaintenanceIndicator Color Meaning Critical & Offline ArraysReplacing a Disk Drive Module REBUILDING/SYNCHRONIZING Fault Tolerant ArraysWhen a Disk Drive Fails Drive Carrier Drive ReplacementReplacing a Power Supply Module TX8 only Connecting Cables to Disk DriveBack of UltraTrak100 TX8 Type of Interface Name Comments ULTRATRAK100 Front Panel InterfaceConfiguration Mode Error ModeLCD Messages Array FunctionalView Status View Status Configure Array Configure CacheConfigure Scsi View Cache Stats View Controller InfoView Array Information View EnclosureView Controller Information Array 0 Size 12GB Temperature 30C/86FRAID 0 Functional 5009 RPMCreate/Cancel Press SEL to Create Press Exit to Cancel What you can do Auto Array SetupView Drive Assignments Define Array Delete ArrayMaxtor Asng In Ary IBM Asng In Ary No Free Disk What you can doRAID Level 4KB 8KB IBM Assigned Maxtor Free Maxtor FreeWipe out disk Synchronize Array Disable Buzzer Rebuild/Sync Pri. Low Array IDWrite Cache What you can do Write CacheWrite Back Write Thru What you can do Write BackID Selected ModePress Or to move these items on the LCD What you can do Scsi IDContacting Promise Support Technical Support ServicesUSA Tech Support Center European Tech SupportChina Office Pacific Rim Sales OfficeDisclaimer of Other Warranties Limited WarrantyPage Returning Product for Repair USA & Canada Your Responsibilities Introduction to RAID Appendix a Technology BackgroundRAID 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?