Dell 745N Software-RAID NAS System Hard-Drive Failures , Software-RAID NAS System Software Failures , Replacing Software-RAID NAS System Hard Drives

lAre you using a standard Ethernet cable to connect to the network?
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Do not use a crossover cable.
lHave you allowed enough time for the NAS system to boot?
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The NAS system typically takes several minutes to boot.
lDoes the NAS system boot completely?
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Connect a keyboard, mouse, and monitor to the NAS system, and observe the boot process.
lAre the LEDs for all four hard drives on the NAS system lit?
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If the LEDs are not all lit, you may have a failed hard drive. See "Software-RAID NAS System Hard-Drive Failures."
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Software-RAID NAS System Hard-Drive Failures
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Your software-RAID NAS system has a mirror of the operating system on hard drives, which allows you to recover in most cases. Depending on which drive
fails, use one of the procedures in Table6-1 to recover from a hard-drive failure.
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Table 6-1. Software-RAID NAS System Hard-Drive Recovery Procedures
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Software-RAID NAS System Software Failures
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To recover from software failures when the main operating system files are missing or corrupt, manually boot from the recovery operating system mirror hard
drives 2 and 3. For instructions, see "Booting From the Software-RAID NAS System Recovery Operating System Mirror Hard Drives."
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Replacing Software-RAID NAS System Hard Drives
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This section provides the procedures for replacing hard drive 0, 1, 2, or 3, re-establishing the recovery operating system partitions, and booting from the
recovery operating system mirror hard drives.
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Replacing Hard Drives
1. Remove the front bezel.
2. Remove the failed hard drive from the NAS system.
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See your Installation and Troubleshooting Guide for information about removing and replacing drives.
3. If you are replacing hard drive 0 and the system is not powered on, move the hard drive in slot 1 to slot 0, and then insert the new hard drive into slot
1 and go to step5. Otherwise, proceed to step4.
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This procedure allows the system to boot during step6.
4. Insert a new hard drive in the same location.
5. Replace the front bezel.
Hard Drive That Failed
Necessary Action
Replacing a single failed hard drive
Replace the failed hard drive. See "Replacing Software-RAID NAS System Hard Drives."
Replacing two or more failed hard
drives
Replace the failed hard drives, and reinstall your system by following the procedures in "Reinstalling the Operating
System."