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Components 23
Voltage regulator modules (AY, AZ)
Each processor must have a dedicated voltage regulator module (VRM)
that adjusts the voltage supplied to the processor. The VRM for the boot
processor (CPU 1) is integrated into the system board.
Memory (AS, AT, AU, AV)
The system comes standard with 64 MB of error checking and correcting
(ECC) RAM. System RAM is expandable up to 2 GB using 100 MHz ECC
PC100-compliant 100 MHz 72-bit synchronous DRAM (SDRAM)
DIMMs (4 DIMM sockets). System memory is PC 100 compliant.
The RAID backplane
The RAID backplane allows you to easily configure a reliable RAID
subsystem. The RAID bay supports six 1-inch or 1.6-inch high 3.5-inch
drives. For optimum operation, only approved, RAID-ready drives should
be used with the RAID backplane.
Drives are mounted on a rail system, which provides quick and easy
installation and hot-swapping capability. A fully functional RAID
subsystem is controlled by a RAID Caching Controller.
Hot-swapping is a useful feature that allows you to replace a failed hard
disk drive without interrupting system operation. In the event of a
hot-swappable drive failure, in which the drive is part of a RAID 5 array, the
system continues normal operation. The failed drive can be replaced and its
contents rebuilt automatically on an equivalent replacement drive without
interrupting the operation of the system.
To configure the backplane, refer to the RAID Cage Configuration Guide.
4081TL.book Page 23 Tuesday, December 22, 1998 1:27 PM