Table of Contents
Advertisement
4. Plug the fans into the fan backplane.
5. Replace the top cover.
6. Replace the node in the rack.
7. Connect all power cords and external cables into the back of the node.
8. Turn on the node.
Tip: When reinstalling the fan brackets on the front right side of the node, remove the cage assembly
that holds the disk drive and service controller and remove the fan cable cover. Pull the cable loose
before plugging it into the fan backplane, then install the fan holder and backplane assembly in the
node.
Removing the microprocessor
You can remove the microprocessor that is used in the SAN Volume Controller nodes.
Take precautions to avoid damage from static electricity. Wear an anti-static wrist strap and use a
static-protected mat or surface. For more information, see "Handling static-sensitive devices" on page xix.
Removing the SAN Volume Controller 2145-CF8 microprocessor
Use this information to remove the SAN Volume Controller 2145-CF8 microprocessor and heat sink.
DANGER
Multiple power cords. The product might be equipped with multiple power cords. To remove all
hazardous voltages, disconnect all power cords.
To correctly perform this task, you must have alcohol wipes and thermal grease available. If you do not
already have them, order these separately.
This service action requires you to remove the cover and:
v Turn the node off.
v Disconnect the power cables.
v Disconnect the data cables.
Attention:
v Do not permit the thermal grease on the microprocessor and heat sink to come in contact with
anything. Contact with any surface can compromise the thermal grease and the microprocessor socket.
v Use great care when handling microprocessors. Dropping the microprocessor during installation or
removal can damage the contacts.
v Do not touch the microprocessor contacts; handle the microprocessor by the edges only. Contaminants
on the microprocessor contacts, such as oil from your skin, can cause connection failures between the
contacts and the socket.
To remove a microprocessor and heat sink, complete the following steps:
1. Read the safety information to which "Preparing to remove and replace parts" on page 20 refers.
2. Follow the procedure in MAP 5350 in the IBM System Storage SAN Volume Controller 2145
Troubleshooting Guide to verify that the node data is mirrored and synchronized, and that there are no
dependent volumes before turning off the node.
3. Slide the node out on its slide rails to the fully extended position.
You can perform most service actions when the node is fully extended from the rack on its slide
rails. You can leave the fibre-channel and Ethernet cables connected, if you are using the
cable-management arm and if you are not removing the node from the rack. If the location of the
node in the rack is too high or too low to work comfortably, you can remove the node from the rack.
Chapter 2. Removing and replacing parts
221
Advertisement
Table of Contents
