APC SGI 15000 RAID - Manual (Page 23)

Introduction
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1.2.3 Uninterruptible Power Supply (UPS)
Using an Uninterruptible Power Supply (UPS) with the controller is highly recommended. The UPS can
guarantee power to the system in the event of a power failure for a short time, which will allow the system
to power down properly.
SGI offers two types of UPS: basic and redundant. The basic UPS is rack-mountable. It can maintain
power to a five (5) enclosure system for seven (7) minutes while the system safely shuts down during a
power failure. The redundant UPS contains power cells that provide a redundant UPS solution.
NOTE : The UPS should be installed by a licensed electrician. Contact SGI to obtain circuit and
power requirements.
Status Indicator Led Activity Explanation
Disk Solid Green All related disk enclosures are operating
normally
Solid Amber There is a problem with 1 or more of the disk
enclosures
Temp Status Solid Green All temp sensors operating normally
Solid Amber At least 1 temp sensor has reported over-
temperature conditions
Solid Red 2 or more temp sensors has reported over-
temperature condition
DC Solid Green Operating normally
Solid Amber Non-critical power supply fault
Solid Red Critical power supply fault
Fan Status Solid Green Operating normally
Flashing Green System monitoring activity
Flashing Amber 1 fan has failed and needs to be replaced
Solid Red 2 or more fans have failed or are undetected and
the system will shutdown in 30 seconds
AC Fail Solid Green Operating normally
Solid Red Power input to supply not present. AC failure
FC (FC-8 only) Solid Physical connection has been made.
Flashing Data is being transferred.
Table 1–1 LED Indicators