Connection Of Disk Array Unit - NEC NF2300-SR412E User Manual

5. CONNECTION OF DISK ARRAY UNIT

This chapter describes the basic procedure for connecting the disk array unit to the host
system. In the connection, also read the User's Guide of the host system or host bus
adapter to which the disk array unit is connected.
The user may conduct the connection of the disk array unit described in this
chapter. However, if so, NEC does not assume the responsibility for any
damage of the disk array unit and components and any influence resulting
from the operation of the disk array unit. NEC recommends that you ask your
maintenance engineer of the maintenance service agent with expert
knowledge on details of the disk array unit to install or remove the disk array
unit.
To connect a peripheral device to the system, disconnect the power cord of
the peripheral from the AC outlet. If not, you may be electrically shocked.
Any FC cable and DE diagnosis cable used for the connection of the disk
array unit shall be approved by NEC. Also, the length of the cable shall be
within the rating range. If a cable not approved by NEC is used or the
length of the cable is out of the rating range, read data may be incorrect or
invalid data may be written.
To avoid incorrect wiring, make sure that connectors are connected to the
proper destinations based on the cable specification.
Do not push any cable connector excessively. Each connector can be
connected properly only when it is inserted to the mating connector in the
correct direction and at the correct angle. Proper insertion allows the
connector to be inserted to the mating connector smoothly without excess
force. If the connector cannot be inserted smoothly, do not insert it by
force but check the direction of the connector again.
Make sure that damages such as buckling, dust adhesion, and dirt are not
found on the connector and contact before connection.
Treat any connector carefully so that it may not be dropped on the floor to
be damaged. Do not drag any connector on the floor to have dust adhere
to the connector.
Do not give excess force to the connector and cable connected with each
other. Do not step or put a substance on a cable to deform the cable.
Handle optical fibers carefully and gently.
The minimum bending radius of optical fiber shall be 30 mm.
Dust and/or dirt may attenuate the optical power of optical fiber to cause
data errors to occur. Clean any optical fiber cable whenever it is inserted
into the mating connector in the following procedure.
1. Blow parts cleaning gas (e.g. air splay) to the connector of the optical
fiber cable for several seconds.
2. Wipe the connector with non-woven cloth soaked with alcohol for
several times.
3. Blow the parts cleaning gas to the connector again.
CAUTION
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