Specifications
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Technology Overview
Xserve RAID
Front View
High-Availability Design
The 3U Xserve RAID enclosure is built for reliability, availability, and serviceability
with high-quality, Apple-engineered construction. LEDs on the front panel provide
continuous visual feedback on system status and activity levels; and 14 drive bays
support hot-swapping of drive modules. The back panel features easy access to
redundant RAID controllers and eld-replaceable power, cooling, and battery modules,
as well as connectivity to one or more host computers and up to two uninterruptible
power supply (UPS) devices.
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Apple Drive Modules. Xserve RAID holds up to 14 hot-swappable Apple Drive
Modules. Each drive is on an independent channel to maximize data throughput
and increase system reliability. LEDs on the front of each module indicate drive
health and activity.
System lock. A built-in lock secures the drive modules in the system. The remote
monitoring application shows the status of enclosure security and can notify the
administrator if someone unlocks it.
Unit identier. Duplicate system identier buttons on the front and back of the
system can be turned on manually or by using the remote monitoring software,
making it easy to locate a particular Xserve RAID in a rack with multiple devices.
The buttons also illuminate if a system event occurs.
Alarm silencer. In the event of a component failure, the alarm system is triggered;
with a touch of this button, the alarm is silenced. The remote monitoring software
provides detailed event information about the aected system and noties the
administrator via email or pager.
System status indicators. Indicator lights display status for power supplies, cooling
modules, RAID controllers, and system temperature.
System activity indicators. Forty-six blue LEDs provide at-a-glance activity levels for
each host channel, and Fibre Channel indicators provide link status information.
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Apple Fibre Channel PCI cards
Xserve RAID connects to a host Xserve, Mac Pro,
or Power Mac system using Apple dual- or
quad-channel 2Gb or 4Gb Fibre Channel PCI
cards (sold separately) with throughput of up
to 1600MB/s.
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Xserve RAID boasts an average
read throughput of up to 380MB/s
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and write
throughput of up to 301MB/s.
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The Fibre
Channel interconnect technology supports
multiple application environments using
point-to-point, loop, and fabric technologies.