
RAID Option ROM User Manual
16
Responding to Logical Drive Problems
While physical drives are highly reliable, on occasion a physical drive can fail.
• Fault-tolerant (RAID 1, 5, and 10) logical drives go Critical when a physical
drive fails.
• Non-fault-tolerant (RAID 0 and JBOD) logical drives go Offline when a
physical drive fails.
• A RAID Ready logical drive disappears from the user interface when its
physical drive fails.
When you boot your system, the RAID Option ROM screen informs you if there is
a critical or offline logical drive.
Allow your PC to finish booting and use RAIDXpert to identify the failed drive and
to rebuild your logical drive.
See the RAIDXpert User Manual for more information.
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