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ATTO Technology Inc. Diamond Storage Array Installation and Operation Manual
3.1 Diamond-VT Components
The Diamond-VT has been designed to be easy to use, maintain and upgrade. It features a durable steel
outer case and modular components in either a floor or a rack mount model.
Immediately upon receipt, check the shipping
carton for damage from mishandling. Contact us
at once via the means that is easiest for you (see
Warranty
on page A-xv) if the carton has been
mishandled or displays any signs of damage.
The front of the Diamond-VT provides access to
the management card and disk drive sleds. The
rear of the unit holds the host interface cards,
power supplies and blower assemblies.
CAUTIONCAUTION
All modular components must be replaced
by qualified personnel only. Refer to
Hot
Swap Operating Instructions
on page 69.
Floor model
The management system card is at the top front of
the case. At its center is a DB-9 serial RS-232
port, a connection for setup, monitoring and
upgrade of the unit from any computer system
with an RS-232 interface. The optional 10/100
BaseT Ethernet management services card
enables Telnet-based monitoring and
management. It also provides the ability to update
the firmware in the array via FTP.
LEDs to the port’s right indicate fault, unit ready,
host interface cards A and B installation status,
and the power status for each power supply.
Below the
management
system card are
individual disk
drive sleds
which also have
LEDs for each
drive’s status.
Each sled
contains two
hard drives. Up
to 24 hard
drives may be
installed on the
12 sleds. Empty
bays should be
covered by
blank faceplates
or empty sleds. Access is provided by loosening
two screws and gently pulling on the sled handle.
On the rear of the unit are blowers which support
hard drive, cabinet and power supply cooling. The
blowers are held in by removable screws. Correct
operation is displayed by a LED at the top of each
panel.
The power supplies for the Diamond-VT, also in
the rear of the unit, are accessible by loosening
two screws and pulling on the power supply
module handle. The power standby on/off switch
is at the top of each module. A yellow LED
indicates
caution
and a green LED indicates
on
.
The power cord socket is at the bottom of each
power supply.
Between the power supplies and blower
assemblies are two slots that hold the Host
Interface cards. The HIC is the connection point
into the Diamond-VT and is available in a 2-
Gigabit Fibre Channel or Ultra 160 SCSI. Host
Interface cards have
fault
and
on-line
or
fault
and
activity
LED indicators, depending on the model.
SCSI
The SCSI card faceplate has a rotary
binary-coded hex switch to set the SCSI ID of the
Diamond-VT. The SCSI card also has an in
channel, to connect via cable to the unit’s
communication source, and an out channel,
available for daisy-chaining arrays together or to
complete termination using an external LVD
terminator.