Volume Controller 2145-Cg8 Or 2145-Cf8 - IBM SAN Volume Controller 2145-CG8 Hardware Maintenance Manual

v Disconnect the power cables.
v Disconnect the data cables.
Notes:
v You must remove a number of components before you can remove and replace the system board. You
will reuse all the components with the new system board. Therefore, take care when you remove and
store these components.
v Each connector on the system board has its use printed next to it on the board.
v All left or right observations are when you are looking at the front of the unit.
To remove the system board, perform the following steps:
1. Read the safety information to which "Preparing to remove and replace parts" on page 26 refers.
2. Follow the procedure in MAP 5350 in the IBM System Storage SAN Volume Controller 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.
4. When the node is completely turned off, remove the cable-retention brackets and disconnect the
power cables, as described in "Removing the cable-retention bracket" on page 34.
5. To make sure that you can replace all cables in the same ports from which they were removed, label
the port position of each Fibre Channel and Ethernet cable; then remove all cables from the back of
the node.
6. Optional: Remove the node from the rack and place it on a flat, static-protective surface. See
"Removing the SAN Volume Controller from a rack" on page 46.
You can perform most service actions when the node is fully extended from the rack on its slide
rails. 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.
7. Remove the top cover. See "Removing the top cover" on page 77.
8. Remove the Fibre Channel adapter and riser-card assembly from slot 1. Set the adapter and riser
card aside on the static-protected surface. See "Removing the Fibre Channel adapter assembly" on
page 178.
9. Remove the high-speed SAS adapter and riser card assembly from slot 2, if it is present, as described
in "Removing the SAN Volume Controller 2145-CG8 or 2145-CF8 high-speed SAS adapter assembly"
on page 197.
10. Remove the 10 Gbps Ethernet adapter assembly from connector slot 2, if it is present, as described in
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| "Removing the 10 Gbps Ethernet riser-card assembly" on page 191.
11. Remove the disk-controller and USB riser-card assembly, as described in "Removing the SAN
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Volume Controller 2145-CG8 or 2145-CF8 disk-controller and USB riser-card assembly" on page 207.
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12. Remove the power supplies, as described in "Removing a SAN Volume Controller 2145-CG8 or
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| 2145-CF8 power supply" on page 156.
13. Remove the microprocessor in slot 1, as described in "Removing the SAN Volume Controller
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2145-CG8 or 2145-CF8 microprocessor" on page 251; then remove the white plastic air baffles by
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| lifting them straight up.
14. Remove the memory modules and set them aside on a static-protective surface, as described in
"Removing the memory modules (DIMM)" on page 104.
Note: Make a note of the location of each DIMM as you remove it, so that you can later reinstall it
in the same connector.
15. Disconnect all cables from the system board. Make a list of each cable as you disconnect it; you can
then use this as a checklist when you install the new system board.
16. Remove the hot-swap fans, as described in "Removing the SAN Volume Controller 2145-CG8 or
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2145-CF8 fans" on page 239.
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Chapter 2. Removing and replacing parts
273