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About Your System | 15
Table 1-2. Hard-Drive Status Indicators−For 2.5" Hard-Drive Backplane With
Expander
Hard Drive
Type
Function
Activity LED Status LED
Green Green Amber
SAS Slot Empty Off Off Off
Drive On-
line/Access
Blinking
when active
On Off
Drive Failed Off/
Blinking
when active
Off On 125 ms
Off 125 ms
Drive
Rebuilding
Blinking
when active
On 400 ms
Off 100 ms
Off
Drive
Rebuilding
Abort
Off/
Blinking
when active
On 3000 ms
Off 3000 ms
Off 3000 ms
Off 3000 ms
Off 3000 ms
Off 3000 ms
On 3000 ms
Off 3000 ms
Predicted
Failure
(SMART)
Off/
Blinking
when active
On 500 ms
Off 500 ms
Off 1000 ms
Off 500 ms
On 500 ms
Off 1000 ms
Drive
Identify/
Preparing for
removal
Blinking
when active
On 250 ms
Off 250 ms
Off
Back-Panel Features and Indicators
Figure 1-7. Back Panel−Two Motherboards