Promise Technology TX4, TX8 Maintenance, Drive Status Indicators, Critical & Offline Arrays

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MAINTENANCE

DRIVE STATUS INDICATORS

As shown in the figure below, each drive has three status LEDs.

Figure 5. Location of Drive Status Indicators (TX4 shown)

MEANING OF STATUS INDICATORS

Indicator	Color	Meaning
Power	Off	No disk drive power – power off or no disk installed.
	Green	Disk power on.
Status	Green	Normal
	Amber	Data is being rebuilt to this drive
	Red	Failed
Disk	Off	No drive installed or the drive has failed
	Green	This will blink on and off to indicate disk activity

CRITICAL & OFFLINE ARRAYS

A fault tolerant array goes "critical" when a drive is removed or fails. Due to the fault tolerance of the array, the data is still available and online. However, once the array goes critical, the array has lost its fault tolerance, and performance may be adversely affected. If the fault was caused by a drive that was removed, the drive should be replaced by another drive, either identical or larger, in order for the RAID system to rebuild and restore optimal configuration.

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Contents ULTRATRAK100 TX4 ULTRATRAK100 TX8 Trademarks CopyrightImportant Data Protection Information Radio Frequency Interference Statement Table of Contents RAID Page Architectural Description IntroductionFeature Benefit Features and BenefitsUnpack ULTRATRAK100 Install Hard DrivesConfiguration Getting StartedUltraTrak100 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 ArrayCritical & Offline Arrays MaintenanceDrive Status Indicators Indicator Color MeaningWhen a Disk Drive Fails REBUILDING/SYNCHRONIZING Fault Tolerant ArraysReplacing a Disk Drive Module 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 InterfaceArray Functional Error ModeConfiguration Mode LCD MessagesConfigure Scsi View Status Configure Array Configure CacheView Status View Enclosure View Controller InfoView Cache Stats View Array InformationView Controller Information 5009 RPM Temperature 30C/86FArray 0 Size 12GB RAID 0 FunctionalCreate/Cancel Delete Array Auto Array SetupPress SEL to Create Press Exit to Cancel What you can do View Drive Assignments Define 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 Back Write CacheWrite Cache What you can do Write Back Write Thru What you can doID Selected ModePress Or to move these items on the LCD What you can do Scsi IDEuropean Tech Support Technical Support ServicesContacting Promise Support USA Tech Support CenterChina 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?