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Removing and Replacing Parts : Dell PowerVault 220S and 221S Systems Service Manual
2. Using a #2 Phillips-head screwdriver, loosen the captive screw at the top of the split-bus module (see
3. Grasp the handle of the module and pull it from the module slot.
Figure 17. Removing and Installing a Split-Bus Module
Installing a Split-Bus Module
1. Depending on your mode of operation, adjust the bus configuration switch to the proper position.
Top (rack systems) or right (tower systems) position for joined-bus mode
Center for split-bus mode (both rack and tower systems)
Bottom (rack systems) or left (tower systems) position for cluster mode
For more information on these modes, see
NOTE:
To change the SCSI bus mode, you must change the position of the bus configuration switch before turning on the storage system. Changing the position of the bus
configuration switch while the system is on will not affect system operation. If you change the configuration, you must first reboot the storage system and then the host server for
the changes to take effect. For more information, see your Installation and Troubleshooting Guide.
2. Carefully insert the split-bus module into the empty module slot.
3. Push the module to the back of the slot until it is firmly seated in the backplane connector (see
4. Using a #2 Phillips-head screwdriver, tighten the captive screw at the top of the split-bus module to secure the module to the chassis.
5. If you changed the bus configuration mode after removing the split-bus module, you must reboot the storage system and then reboot the server.
Replacing a Power Supply
Your storage system supports two combined power supply and cooling modules. While the system is designed to operate normally with only one functional power supply, both cooling
modules (with two blowers each) must be present for proper cooling. If only one power supply is needed, a blank must be inserted into the other slot to mount the second cooling
module.
CAUTION:
A power supply and cooling module can be removed from a powered-on system for a maximum period of five minutes. Beyond that time, the system
begins to overheat, and at a critical temperature, shuts down to prevent damage.
The cooling module is securely mounted to the power supply using a hook-and-latch fastening design. This simplifies the removal and installation of cooling modules and power supplies.
file:///C|/Users/rishi_sood/Desktop/220s/en/sm/remove.htm[3/7/2013 12:09:15 PM]
1 captive screw
2 handle
3 split-bus module
"Split-Bus
Module."
Figure
17).
Figure
17).