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Viglen SX220 User Guide 11
of the system, some 2-post relay racks may not, causing the racks to fail. Only use
relay racks that are specifically designed to support the weight and stresses of a 2-
post front-mount only chassis.
Optional Peripherals
The SX220 server chassis provides six hard drive bays at the front of the chassis. An
optional seventh drive may be used in the flex bay. All hard drive bays may be
populated with a tray mounted 3½” hard disk drive. If a configuration requires the use
of a floppy disk drive and CDROM drive Floppy/CDROM module may be used in
place of the seventh hard drive in the flex bay. A tape drive bay is located below the
flex bay.
Hot-Swappable Hard Disk Drives
The SX220 server chassis can support up to seven tray-mounted SCA2, 3½” x 1”
and Ultra2/Ultra160 hard disk drives.
A major feature of the hot-swap bay is the backplane which powers down a drive
when a failure is detected and reported to the SCSI bus. When a new drive is
inserted, the power control waits a short time for the drive to become fully seated
and then applies power to the drive. The backplane provides signals to the control
panel to indicate failure status for each drive in the bay.
The chassis ships with six drive carriers for mounting the separately purchased hard
drives. For information on how to install these drives, refer to page 43.
Flex Bay
For those configurations that require a floppy drive and CD-ROM drive, the seventh
drive bay or “Flex Bay” will be configured as a peripheral bay by inserting the
Floppy/CDROM module. The Floppy/CDROM module is a 3½” floppy drive and a ½”
(12.7mm) slim-line CDROM drive mounted as a single unit in the peripheral bay. A
release latch allows for tool-less removal from the front of the server, however, the
Floppy/CDROM Module is not hot swappable. The system must be powered down
before the module is inserted or removed from the flex bay.
If the Flex Bay is used to house a SCA2 hard disk drive the bay will be hot-
swappable the same as the six other standard bays.