58 LED descriptions
24-drive enclosure front panel LEDs
The enclosure bezel is removed to reveal the underlying 2U24 enclosure front panel LEDs. The front panel
LEDs—including SFF disk LEDs—are described in the table below the illustration.
Figure 35 LEDs: 2U24 enclosure front panel
LED Description Definition
1 Enclosure ID Green — On
Enables you to correlate the enclosure with logical views presented by
management software. Sequential enclosure ID numbering of controller
enclosures begins with the integer 0. The enclosure ID for an attached drive
enclosure is nonzero.
2 Disk drive — Left LED See Disk drive LEDs on page 60.
3 Disk drive — Right LED See Disk drive LEDs on page 60.
4 Unit Locator White blink — Enclosure is identified
Off — Normal operation
5 Fault/Service Required Amber — On
Enclosure-level fault condition exists. The event has been acknowledged but
the problem needs attention.
Off — No fault condition exists.
6 CRU OK Green — On
The enclosure is powered on with at least one power supply operating
normally.
Off — Both power supplies are off; the system is powered off.
7 Temperature Fault Green — On
The enclosure temperature is normal.
Amber — On
The enclosure temperature is above threshold.
1
2
3
Left ear
Right ear
Integers on disks indicate drive slot numbering sequence.
231230 4 5 6 7 8 9101112131415 16171819202122
7
5
4
6
7
5
4
6
(Silk screens on bezel)
Notes: Enclosure bezel is removed to show front panel LEDs.