Replacing A Link Card In An I/O Boat - Sun Microsystems SPARC Enterprise T5120 Installation And Service Manual

2. Stop the domains that are connected to the External I/O Expansion Unit.
For information about stopping a domain, refer to the documentation for the
server.
3. Turn off the server.
For information about powering down a server, refer to the documentation for the
server.
4. Disconnect the link cable from the link card in the host server.
5. Replace the link card in the host server.
The link card is a form of PCI Express card. Refer to the service manual for your
host server for instructions on replacing PCI cards.
Note – If your host server has low-profile slots, replace the full-height card bracket
on the link card with a low-profile card bracket.
6. Connect the link cable to the replacement link card.
7. Turn on the server.
8. Start the domains that are connected to the External I/O Expansion Unit.
For information about starting a domain, refer to the documentation for the server.
4.7

Replacing a Link Card in an I/O Boat

The External I/O Expansion Unit must be powered off during this procedure.
Note – Ordering a complete set of replacements at one time can shorten the
troubleshooting process. If you cannot determine if a link problem is caused by a link
card or a link cable, order replacement link cards for the host and the I/O boat, along
with a copper link cable or two optical link cables, as appropriate.
1. Use an antistatic strap for this procedure.
2. Stop the domains that are connected to the External I/O Expansion Unit.
For information about stopping a domain, refer to the documentation for the
server.
3. Turn off the AC switches on both PSUs at the front of the External I/O
Expansion Unit.
Chapter 4 Servicing and Replacing Components 4-11