10. SOFTWARE RAID1
10-26
10.6.3 Status display function for RAID1
The status display function for RAID1 shows the current status of the software RAID1. It is
used for checking the status of the software RAID1.
The following is a list of information this function displays.
• RAID status
Item Value
Description
Array Status
OPTIMAL
The RAID is working properly.
The array has redundancy. (*1)
DEGRADE
The RAID is in fall-back operation.
The array does not have redundancy. (*1)
UNKNOWN
The status is unknown.
(*1) If medium error occurs, “(MEDIA ERROR)” is attached to the end of the value.
Medium error means that read error occurred at the copy source HDD during rebuild and there is a
problem with data integrity.
• Status of each HDD
Item Value
Description
HDD#1, HDD#2
ONLINE
The HDD is working properly.
OFFLINE
Due to HDD failure, the HDD is disconnected.
You need to replace the HDD.
OFFLINE (INCOMPLETE
DATA)
The HDD is disconnected due to power failure or
reset. If you rebuild the RAID, you can continue to
use the HDD.
REBUILD
The HDD is under a rebuild process. (*2)
NORMAL
The HDD has never been used for the B model.
NOTMOUNTED
No HDD is mounted in the drive bay.
UNKNOWN Acquisition
of
the HDD status failed.
ERROR
Access to the HDD failed.
(*2) This includes the cases where write error occurred during a rebuild process or a rebuild process is aborted.
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