Nonredundant Systems; Redundant Systems; Removal Procedures - Cisco VCO/4K Mechanical Assemblies

Nonredundant Systems

When removing and replacing a Storage/Control I/O Module card in a nonredundant system,
the system must be powered down. The system is out of service until the card is replaced.

Redundant Systems

To remove and replace a Storage/Control I/O Module card in a redundant system:
1. If servicing an active Storage/Control I/O Module, switch the active side to standby.
Refer to the Cisco VCO/4K System Administrator's Guide, Maintenance section for
information about how to switch the active side to standby.
2. When the transition to standby is complete, the Storage/Control I/O Module can be
removed and replaced.

5.1 Removal Procedures

If permanently removing the Storage/Control I/O Module from a nonredundant system, back-
up the database before powering-down the system and removing the module. Refer to the Cisco
VCO/4K System Administrator's Guide for information on backing-up the database.
To remove a Storage/Control I/O Module:
CAUTION: If removing the Storage/Control I/O Module from a nonredundant
system, power down the system before removing the card.
1. Make certain you are properly ESD grounded. Use a wrist strap, attached to the
ground connector located in the front, inside of the VCO. The ground connector can be
identified by the label: CONNECT ESD WRIST STRAP HERE
2. Remove the Combined Controller that is connected to the Storage/Control I/O Module
to be serviced. Refer to the Cisco VCO/4K Card Technical Description Series:
Combined Controller Assembly for information on how to remove the Combined
Controller.
If removing the Combined Controller from a redundant system, make certain that it is
in standby mode. (Refer to Redundant Systems, step 1 above.)
3. Use a 1/8-inch bladed screwdriver to loosen the captive mounting screws at the top and
bottom of card. Do not remove the screws from the cards.
4. Grasp the screws at the top and bottom of the card and pull the card away from the
midplane.
The card fits tightly into the midplane connectors and some force is required to pull it
away from the midplane. However, do not exert excessive force on the card to remove it.
5. When the card is free of the connector, grasp the sides of the front panel and pull the
card free of the card slot.
6. Grasp the card on its bottom edge as it is removed from the subrack.
7. When the card has been removed from the subrack card slot it should be placed on an
antistatic mat or an antistatic envelope.
NOTE: Do not replace the Combined Controller until the Storage/Control I/O
Module is replaced. If the Storage/Control I/O Module is not replaced at the time
of removal, do not replace the Combined Controller.
REMOVAL/REPLACEMENT INFORMATION
Storage/Control I/O Module 1-17