Accusys RAID Controller ACS-77100 - Manual (Page 13)

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User’s Manual
3.1.1 RAID Level configurations
RAID Level 5 RAID Level 0
Pin1-3 is open.
Pin5-7 is open. Pin1-3 is short.
Pin5-7 is short.
RAID Level 10 RAID Level 5 + spare
Pin1-3 is short.
Pin5-7 is open.
Pin1-3 is open.
Pin5-7 is short.
Note
If the RAID level is not matched between the disk setting and the RAID level
selector setting, the LCD will display the following two messages alternatively:
(1) “RAID level”
“Unmatched”
(2) “Current: R(X)” (i.e. the current RAID level setting of RAID level selector.)
“Original: R(Y)” (i.e. the original RAID level setting of the installed disks.)
Solution:
At this situation, RAID cannot work, users should choose one of the following
options :
(1) Shut down and tune the RAID level selectors to R(Y).
(2) Re-plug the four disks and re-create the Array to R(X). (But data in the RAID
will be lost due to the destructive initialization )