HP A7990A - StorageWorks SAN Director 4/16 Blade Switch, Hardware Reference Manual

Page: 78 / 144

78 Installing Field-replaceable units (FRUs)
Replacing a core switch blade (CR8)
To replace a CR blade (slot 5 or 6):
CAUTION: Wear a grounded ESD strap when handling a CR8 blade. Use the grounding connections
above the power connectors on the chassis.
1. Open the ejector handles to approximately 45 degrees; then, orient the CP blade so that the handles
are toward you and the flat metal side is on your left.
2.
Align the flat metal side of the core switch blade inside the lower and upper blade guides in the slot;
then, slide the core switch blade into the slot until it is firmly seated (see Figure 31 ).
3. Tighten the thumb screw inside each handle using the Phillips screwdriver.
4.
Turn the core switch blade on by sliding the ON/OFF switch in the top handle up, to cover the thumb
screw.
5. Verify that the power LED is green (might require a few seconds). If not, ensure that the core switch
blade has power and is firmly seated and that the ejectors are in the locked position.
6. Connect to the new core switch blade.
7. Pack the faulty core switch blade in the packaging provided with the new core switch blade, and
contact the DC Director supplier to determine the return procedure.
8. Replace the chassis door. See ” Cable management comb ” on page 65.
Power supply
The DC Director can continue operating during the replacement if at least one power supply continues
operating. The replacement procedure for each power supply takes less than five minutes. A power supply
unit or filler panel is required for the power supply replacement.