Introducing the Ultra SCSI RAID Enclosure
1–14 UltraSCSI RAID Enclosure
I/O Module LEDs
Each I/O module (see Figure 1–11) has two green status LEDs that display
the status of both the internal and the external SCSI bus terminator power
(TERMPOWER). Whenever TERMPOWER is present, the LED is O
N
.
See Chapter 5, "Single–Ended I/O Modules," for detailed information about
these LEDs.
Figure 1–11 I/O Module TERMPOWER LEDs
CXO5829A
External
TERMPOWER
Internal
TERMPOWER
Options
The following sections describe the UltraSCSI RAID subsystem user
selectable options:
Power
The standard UltraSCSI enclosure power configuration consists of one ac
power controller and five shelf power supplies. This configuration provides
the minimum SBB power supply redundancy. A system power failure will
occur for any of the following conditions:
•
Loss of the ac power source
•
Failure of the ac power controller
•
Failure of two shelf power supplies
The user has the option of modifying the power configuration to eliminate
single points of failure,
Summary of Contents for StorageWorks UltraSCSI DS-BA370 Series
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