Chapter 1 About the PFR500/E
16
PFR 500/E Instruction Manual
16 October 2001
Bypass Circuits along with all other active components are on redundant, separate hot
swappable modules. This improves serviceability and increases fault tolerance by
eliminating any single point of failure. With two RAID Controllers, the two loops
within a single standard chassis are configured as a single loop with a backup loop in
standby mode.
Capacity and redundancy
The PFR 500 contains five or ten half-height 3.5" Fibre Channel Arbitrated Loop
(FC-AL) disk drives. The chassis also supports one or two hardware RAID
Controllers in one 3U high rack-mountable chassis. The PFR500 currently uses
36GB, 73GB or 180GB drive capacities. With ten drives, one chassis holds up to
360GB, 730GB or 1.8TB depending on the disk drive option.
The PFR 500E RAID Expansion Chassis provides additional storage capacity. It is an
identical chassis with two Loop Bypass Board installed. Up to nine PFR 500E RAID
Expansion Chassis can be connected to a single PFR500 comprising a single
disk-array storage system with a total of 100 drives and 3.6TB, 7.3TB or 18TB of
storage depending on the disk drive option. The built-in chassis daisy-chaining
capabilities provide for cost effective storage expansion as requirements grow.
Throughout this manual, the term PFR 500/E is used to refer to either the PFR500 or
the PFR500E interchangeably.
PFR500/E components
The PFR 500/E components are:
• The chassis with passive midplane board
• One or two RAID controllers (PFR500 only)
• One or two Loop Bypass Boards
• As many as ten Fibre Channel disk drives per chassis
• Two power supplies
• Two fan modules
The RAID Controllers, Loop Bypass Boards, disk drives, power supplies, and fan
modules are hot-swappable field replaceable units (FRUs), which means you can add
or replace them while the PFR 500/E is powered up.
Optional modules for the PFR500/E are:
• Second RAID Controller Module (PFR500 only). Allows for continued access to
the PFR500 if the primary RAID Controller fails. Adding a second RAID
Controller to the same chassis is not intended to increase performance, but rather
to add redundancy
.
Refer to your Profile XP PVS Series Installation Guide for
detailed connection and configuration instructions.
The following figure shows the PFR500/E components. Details on each component
follow the figure.
