IBM System Storage N3700, Руководство по аппаратуре и обслуживанию

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The N3700 load board feature enables the N3700 (A10 and A20) to operate in a
SATA-only storage environment. If the N3700 load board is ordered, the N3700 is
ordered with no Fibre Channel hard drives and only EXN1000s (SATA drives) are
attached to the storage controller.
Attention: If your N3700 storage system shipped with load boards, exactly two
load boards are installed in the system. The two load boards must be installed in
bays 0 and 1.
Attention: Depending on the design of your N3700 CPU module, direct
connections to expansion units must be made with either Fibre Channel copper
cables or Fibre Channel optical cables, as described in the following bullets. Copper
or optical cables are ordered with the expansion unit.
v For direct connections to N3700 early CPU module designs: Use
NAS-to-EXP Fibre Channel copper cables (FC #2020 or 2022). For attachment to
an N3700 Model A10, one NAS-to-EXP Fibre Channel copper cable is required.
For attachment to an N3700 Model A20, two NAS-to-EXP Fibre Channel copper
cables are required.
v
For direct connections to N3700 current CPU module designs: Use an
LC-to-LC Fibre Channel optical cable and two SFPs for attachment to an N3700
Model A10. Use two LC-to-LC Fibre Channel optical cables and four SFPs for
attachment to an N3700 Model A20.
For more information about the differences between the early and current N3700
CPU module designs, see “Understanding the differences between early and
current N3700 CPU modules” on page 1.
Connecting your N3700 storage system to a power source
The N3700 storage systems and expansion unit disk shelves are shipped with
redundant power supplies, referred to as PSU1 and PSU2. Each power supply has
its own AC power cord. You should have separate circuit breakers for each power
supply to ensure power redundancy.
For information on connecting your N3700 to a power source, see the Installation
and Setup Instructions for your storage system.
Connecting to third-party devices or Fibre Channel switches
You can connect third-party devices to your N3700 storage system through an
optical Fibre Channel interface using any Fibre Channel port on the back of the
chassis. Refer to the documentation that comes with the third-party device for
connection information.
Attention: On all N3700 storage systems, Port C is designated for use in
connections to third-party devices.
Rules for connecting the third-party devices
Observe the following rules for connecting the third-party devices:
v Port C is designated for use in connections to third-party devices. Port C is the
leftmost port on the bottom CPU module.
v For N3700 storage systems with the current CPU module design, you must plug
an SFP module into port C before cabling or terminating it.
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IBM System Storage N series: N3700 Hardware and Service Guide