User`s guide

4. Use both hands and pull the power supply SBB out of the shelf.
Figure 5–1 Removing a Power Supply SBB (Cabinet Removed for Clarity)
CXO-4314A-MC
5.2 Installing a Power Supply SBB
Use the following procedure to install a power supply SBB:
1. Insert the replacement power supply SBB into the guide slots and push it in
until it is fully seated and the mounting tabs engage the shelf.
2. Connect the power cord to the power supply SBB.
3. After input power is applied, observe the power supply SBB LEDs to make
sure the power supply is functioning properly. Both status LEDs should be
on.
5.3 SBB Warm Swap
An SBB warm swap involves quickly removing and replacing a disk drive,
tape drive, or other storage SBB. SBBs can be removed safely without taking
the system or controller off line or adversely affecting activity on the rest of
the system. Using warm swap also preserves data integrity. However, before
removing a device, either the controller or the operator must determine that the
swap is necessary. The SBB warm swap procedure also can be used to add a
device to an empty shelf slot.
• The controller determines that a device is bad by trying to access the device,
receiving no response from the device, or detecting excessive errors from the
device.
• The operator decides to remove a device by examining the controller’s
operator control panel (OCP) codes, the SBB LEDs, system messages, or
system error log information.
5–2 Removal and Installation Procedures