IBM SAN256B-6, Installation, Service And User Manual

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supply assemblies are installed, air flows from the nonport-side and exhausts through the side vent.
When installing the chassis in a four-post rack with the airflow diversion rack mount kit, airflow is
redirected to or from the port side of the chassis. Therefore, if NPE fan and power supply assemblies are
installed, air flows into port-side air vents and exhausts to the nonport side. If NPI fan and power supply
assemblies are installed, air flows into nonport-side air vents and exhausts through to the port-side.
CAUTION:
Do not attempt to lift or support the chassis by the bezel attached over the port-side air vents.
Note: Be careful to not push on mesh screen covering the side air vent or poke it with sharp objects.
Port-side slot numbering
The SAN256B-6 contains 6 full-width slots and two half-width slots, for a total of 8 slots. Facing the port
side of the device, the half-width slots are on the top, numbered 1 and 2 from left to right. The remaining
full-width slots are numbered 3 through 8, counting from top to bottom of chassis.
Slots contain guide pins and connectors designed for specific blade types. Only install the control
processor (CP), core routing (CR), port, and extension blades into slot numbers as follows:
v Slots 1–2 are restricted to CP blades. Note that the blade installed in slot 1 will be designated as CP0,
while the blade in slot 2 will be designated as CP1 in CLI command and message output.
v Slots 3–4 and slots 7-8 are restricted to port and extension blades.
v Slots 5-6 are restricted to CR32-4 blades.
Nonport-side view of the device
The following illustration shows the nonport-side view of the SAN256B-6 with all fan and power supply
assemblies installed.
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SAN256B-6 Installation, Service, and User Guide
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