Tmf/Tfd Replacement Procedure; Side Fan Assembly Replacement - IBM TotalStorage SAN256N Director 2045-N16 Installation And Maintenance Manual

To Midplane side
fan connector
Side fan I/O connector
Figure 39. Side fan assembly replacement
4. Close and latch the cabinet rear door, if applicable.

TMF/TFD replacement procedure

Use the following procedure to replace the TMF/TFD module in a SAN256N director.
Attention: This procedure requires that all Upper Fan assemblies (and if installed,
external cabinet fans ) are removed from the SAN256N director chassis. The SAN256N
system must be shut down during the TMF/TFD module replacement to prevent the
internal SAN256N modules (TFIO, TCM, and TSW) from being subjected to higher than
recommended operating temperatures.
Attention: Use a properly attached ESD wrist strap when handling the TMF/TFD
module, otherwise damage to equipment may result.
Removing the TMF/TFD module
1. Shut down the SAN256N director. Refer to "Powering off the SAN256N director" on
2. Remove the three upper fan assemblies to allow access to the TMF/TFD module.
3. If external top cabinet fans are installed in the SANC40N cabinet, disconnect the
90
SAN256N Director 2045-N16
Attention: Refer to safety notices before starting an installation.
page 98.
Refer to "Upper fan assembly replacement procedure" on page 87.
cables from the TMF/TFD module DB9F connectors.
Side fan assembly
1. Slide latch to LEFT
to unlatch, release
to lock
2. Push housing forward
to Mount into Chassis