Promise Technology TX4 User Manual
13
M
AINTENANCE
D
RIVE
S
TATUS
I
NDICATORS
As shown in the figure below, each drive has three status LEDs.
Figure 5. Location of Drive Status Indicators (TX4 shown)
M
EANING OF
S
TATUS
I
NDICATORS
Indicator Color
Meaning
Power
Off
No disk drive power – power off or no disk installed.
Green
Disk power on.
Status Green Normal
Amber
Data is being rebuilt to this drive
Red
Failed
Disk
Off
No drive installed or the drive has failed
Green
This will blink on and off to indicate disk activity
C
RITICAL
& O
FFLINE
A
RRAYS
A fault tolerant array goes "critical" when a drive is removed or fails. Due to the
fault tolerance of the array, the data is still available and online. However, once
the array goes critical, the array has lost its fault tolerance, and performance may
be adversely affected. If the fault was caused by a drive that was removed, the
drive should be replaced by another drive, either identical or larger, in order for the
RAID system to rebuild and restore optimal configuration.
fault tolerance of the array, the data is still available and online. However, once
the array goes critical, the array has lost its fault tolerance, and performance may
be adversely affected. If the fault was caused by a drive that was removed, the
drive should be replaced by another drive, either identical or larger, in order for the
RAID system to rebuild and restore optimal configuration.