20
DataDirect Networks StorageScaler 6000 User Guide Rev B
4.2.4 Computer Doesn’t Recognize the Storage Scaler 6000
Subsystem
1
Check that the SAS interface cables from the Storage Scaler 6000 enclosure to the host computer, or
I/O controller, are fitted correctly.
2
Check that there is a valid SAS signal present at the I/O connector. If there is no signal present, ensure
the cable has been properly inserted.
3
Check the I/O module setup as follows:
–
Ensure the I/O module has been correctly installed and all external links and cables are securely
fitted.
–
Ensure the maximum cable length has not been exceeded.
4.3 LEDs
Green LEDs are always used for good or positive indication. Amber LEDs indicate there is a critical fault
present within the module. See specific LED tables for further information:
• Section
4.3.1, ”HDD (Hard Disk Drive)”
• Section
4.3.2, ”PCM (Power Cooling Module)”
• Section
4.3.3, ”DEM (Drive Expander Module)”
• Section
4.3.4, ”I/O Module”
• Section
4.3.5, ”Front Panel Drive Activity Indicators”
4.3.1 HDD (Hard Disk Drive)
When a HDD is faulted,
Table 4–1
describes the fault LED behavior:
• Under Normal conditions, the LEDs should all be illuminated constant GREEN
• If a problem is detected, the color of the relevant LED will change to AMBER.
Table 4–1
HDD LEDs
Location
Color
Identifier
Behavior
Enclosure front
Amber
Enclosure fault
This LED is ON with a drive fault
Enclosure front
Amber
Drive fault
This LED is ON with a drive fault
USO
RESTRITO
