easyRAID S4-FWTT, User Manual

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Appendix A – FAQ
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If you encounter a problem while using the subsystem, check this section for help.
1. How can I turn off the alarm beep sound when there is a hard disk failure?
Ö Press the mute button.
2. I have connected the subsystem, but it does not appear in the motherboard
BIOS. Why?
Ö
Ensure that an array is initialized completely.
3. How should I react to disk failure?
Ö For a RAID 5/RAID 0+1 array, you should replace the failed disk. Data
rebuilding will then begin.
Ö For a RAID 5+hot spare array, data will be rebuilt automatically to the hot spare
disk. There is no need to immediately replace the failed drive.
Ö The capacity of new DISK you installed must equal or larger than the smallest
disk in the subsystem. Otherwise, it will be rejected by the subsystem, though it
has no any damage.
4. How should I react to a disk failure while creating a RAID 5?
Ö Replace the failed DISK with another of equal or larger capacity. The array will
re-initialize from starting.
5. If I only have two or three disks, can I create a RAID?
Ö 2 disks: No. need at least 3 disks to configure R5+hot spare
Ö 3 disks: Yes, but you can only choose R5+hot spare. The three disks must be
installed in the bottom three disk carriers with the top layer – the hot spare
location, left empty.
6. Why does the display read “unmatched”?
Ö The RAID level selector is not set to the level of the existing array. Please
choose one of the following options :
Supposed the RAID level selector is R0, but the disk setting detected from disks