1-6
System Overview
Power Supply
The power supply consists of the power supply bay and one power supply module. A
second power supply module can be purchased to provide a redundant, 1+1 system.
With either configuration, the power supply provides 500 watts of power and is
designed to minimize EMI.
The power subsystem supports implementation of remote management features
including remote enable that permits power to be activated from a variety of sources.
Peripheral Bays
Your server supports a variety of standard PC AT-compatible peripheral devices. The
chassis includes these peripheral bays:
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A removable media front panel bay for mounting a half-height 3.5-inch
peripheral device such as an optional tape drive.
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Depending on your configuration, your server includes either six or seven hot-
swap SCSI hard disk drive bays for mounting hard disk drives installed in easily
removable drive carriers.
Note:
The hot-swap SCSI hard disk drive bays contain a hot-
swap back plane that requires an 80-pin single connector attachment
(SCA) connector on the drives that you install.
The flex bay can be used with either the standard CD-ROM/FDD module or a seventh
hot swappable SCSI HDD. The CD-ROM/FDD module may only be inserted or
removed from the flex bay when system power is turned off. The CD-ROM/FDD
module is NOT hot swappable. The standard 3.5-inch diskette drive supports 720 KB
and 1.44 MB diskette media.
The chassis includes four 60-mm non-hot-swappable system fans for cooling the
processor(s), hard drives, and add-in cards. The system fans are mounted in a fan
assembly located in the middle of the chassis to pull cooling air through the chassis.
The power supply contains a single fan for cooling.
SAF-TE Logic
The SCSI backplane includes SAF-TE (SCSI Accessed Fault Tolerant Enclosure) logic
that provides an interface to the disk subsystem that supports status signals, hot
swapping drives, and enclosure monitoring. The transport mechanism for the
standardized alert detection and status reporting is the SCSI bus. Disk drives, power
supplies, cooling fans, and temperature are continually monitored and the conditions
then reported over the SCSI bus to the system.
When used with RAID management software the user can be alerted of impending or
imminent disk conditions requiring attention. This allows the user to react to conditions
that could normally go unnoticed until data loss.
Summary of Contents for EXPRESS5800/120Re-2
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