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Chapter 3 Hardware Configuration 45
About the Internal Disk Drives
The Sun Fire V490 system includes two internal, low-profile (1.0-inch, 2.54-cm)
FC-AL disk drives, attached to a backplane. (The system also includes an external
FC-AL port; see the section, “About the HSSDC FC-AL Port” on page 44.) Internal
disks are available in storage capacities of 73 or 146 Gbytes, with a rotation speed of
10,000 RPM. The maximum internal storage capacity is 292 Gbytes (using two 146-
Gbyte disks), with larger capacities possible as disk storage capacities continue to
grow.
Sun Fire V490 disk drives are dual-ported for multipath access. When used in a
dual-loop configuration—with the optional addition of a second FC-AL controller on
a PCI adapter card—each drive can be accessed through two separate and distinct
data paths.
Sun Fire V490 disk drives are hot-pluggable. You can add, remove, or replace disks
while the system continues to operate. This capability significantly reduces system
downtime associated with disk drive replacement. Disk drive hot-plug procedures
involve software commands for preparing the system prior to removing a disk drive
and for reconfiguring the operating system after installing a drive. For detailed
instructions, see the Sun Fire V490 Server Parts Installation and Removal Guide, which
is included on the Sun Fire V490 Documentation CD.
Three LEDs are associated with each drive, indicating the drive’s operating status,
hot-plug readiness, and any fault conditions associated with the drive. These status
LEDs help you quickly to identify drives requiring service. See
TABLE 2-3 for a
description of these LEDs.
Configuration Rule
■ Disk drives must be Sun standard FC-AL disks with low-profile (1.0-inch,
2.54-cm) form factors.
About the Serial Port
The system provides a serial communication port through an RJ-45 connector
located on the back panel. The port supports baud rates of 50, 75, 110, 200, 300, 600,
1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200, 153600, 230400,
307200, and 460800.