Chapter 4: Subsystem Connection and Operation
NOTE:
LC connectors are small form-factor, fiber-optic connectors based on a
1.25-mm ceramic ferrule with the familiar latching mechanism of the RJ-
45 modular plug and jack.
Other beneficial features of a typical SFP transceiver include a single power
supply, low power dissipation, and hot-swap capability. It is also important
that any transceiver you use meets the FC performance and reliability
specifications.
NOTE:
SFP transceiver modules must be purchased separately. You may also
purchase
the
SFP
transceivers
from
your
Falcon 24 Bay
subsystem vendor/distributor.
4.2 Topology and Configuration Considerations
4.2.1 Basic Configuration Rules
When you are configuring your FALCON, the following are some basic rules
that should be followed.
NOTE:
Please adhere to these basic configuration rules. They are provided for
your convenience to ensure that your storage system will run smoothly
and effectively.
•
When selecting the number of hard drives to be included in a logical
configuration, the transfer rates of host ports and the mechanical
performance of the hard disks should be considered.
•
Follow all the Fibre Channel specifications when cabling. Pay attention
to signal quality and avoid electronic noise from adjacent interfaces.
•
The disk drives in the same logical array should have the same capacity,
but it is preferred that all the drives have the same capacity.
•
A spare drive should have a minimum capacity equivalent to the largest
drive that it is expected to replace. If the capacity of the spare is less
than the capacity of the drive it is expected to replace, then the
controller will not proceed with the failed drive rebuild.
Topology and Configuration Considerations
4-3
