a. Remove the six screws from the sides of the chassis.
b. Remove the failed midplane from the chassis and insert the replacement
midplane.
c. Secure with the six screws.
10. (EXP3512 and EXP3524) Reinstall the ESMs (see âReplacing an ESMâ on
page 124).
11. (DS3512 and DS3524) Reinstall the controllers (see âInstalling a controllerâ on
page 95).
12. Reinstall the power supplies (see âReplacing a power supplyâ on page 114).
13. Reinstall the hard disk drives (see âInstalling a hard disk driveâ on page 106).
14. (DS3512 and DS3524) Turn on the storage subsystem (see âTurning on the
storage subsystemâ on page 68).
15. (EXP3512 and EXP3524) Turn on the expansion enclosure (see âTurning on
the expansion enclosureâ on page 88).
16. Check the LEDs to make sure that the storage subsystem or expansion
enclosure is fully operational (see âChecking the LEDsâ on page 73).
Figure 100. Replacing the midplane assembly in a DS3524 or EXP3524
126 System Storage DS3500 and EXP3500: Installation, Userâs, and Maintenance Guide