Chapter 4 Mass Storage Subsystem Configuration 81
The following mass storage subsystem components are available as system options.
Component Quantity Description
Expansion FC-AL disk
backplane
1 Expands the base array to accommodate up to 12
disks. See “About the FC-AL Disk Backplanes”
on page 82.
FC-AL disk drives Up to 12
(6 per
backplane)
Low-profile (1.0-inch) dual-ported disks,
available in various storage capacities. See
“About Internal Disk Drives” on page 84.
PCI FC-AL host adapter
cards
Up to 9 PCI host adapter cards for controlling internal or
external FC-AL devices. These plug in to PCI
slots on the system I/O board. Up to three PCI
FC-AL host adapters can be connected internally
to manage FC-AL I/O operations and data
transfers on Loops A and B of the mass storage
subsystem. See “About FC-AL Host Adapters”
on page 86.