IBM System Storage EXP2512 Express Storage Enclosure, Installation, User'S, And Maintenance Manual

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Replacing the midplane
The midplane assembly must be replaced only by a trained service provider.
To replace the midplane assembly, complete the following steps.
Attention: To prevent data loss, you must shut down the storage enclosure
before you begin the procedure to replace the midplane assembly.
1. Read the safety information that begins on page iii and “Installation guidelines”
on page 29.
2. Turn off the power to the EXP2500 and disconnect all cables. For more
information, see “Powering off the EXP2500” on page 22.
3. Carefully remove each hard disk drive and label it with the drive slot from
which it was removed (see “Replacing a hot-swap hard disk drive” on page
30). The drives must be inserted back in the same slot from which they were
removed.
4. Remove the two power supplies (see “Replacing a hot-swap power supply” on
page 36).
5. Remove the ESM and filler panel (see “Replacing an ESM” on page 35).
6. Remove the enclosure from the rack cabinet, turn it on its side with the bottom
facing toward you, and place the enclosure on a flat surface.
7. Remove the two screws from the bottom of the enclosure. Label these screws
as to the location from which they are removed and place them aside.
x4
x4
x2
8. Turn the enclosure top side up and place it on a flat surface. Remove the four
screws on the right and left sides that secure the midplane assembly to the
front of the enclosure. Label the four screws as to the location from which they
are removed and place them aside. (See the illustration in step 7.)
9. Remove the four screws on the right and left sides of the enclosure that
secure the midplane assembly to the chassis. Label the four screws as to the
location from which they are removed and place them aside. (See the
illustration in step 7.)
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System Storage EXP2512 and EXP2524: Installation and Maintenance Guide