![background image](http://html.mh-extra.com/html/ibm/totalstorage-ds5100/totalstorage-ds5100_installation-users-and-maintenance-manual_609021205.webp)
that you can reconnect them correctly to the new or upgraded controller.
Figure 107 shows the location of the connectors on the back of a controller.
Use the following procedure to remove the SFPs from the RAID controller that
you are replacing or upgrading:
a. Remove the LC-LC fibre-channel cable from the SFP module. For more
information, see “Handling fibre-optic cables” on page 48.
b. Unlock the SFP module latch:
v
For SFP modules that contain plastic tabs, unlock the SFP module latch
by pulling the plastic tab outward 10°, as shown in Figure 108.
v
For SFP modules that contain wire tabs, unlock the SFP module latch by
pulling the wire latch outward 90°, as shown in Figure 109 on page 174.
Host channels
RS-232
serial port
Ethernet ports
Dual-ported
drive channels
AC
power
Controller A
Strain-relief
clamp
ds50015
AC
power
Strain-relief
clamp
Ethernet ports
RS-232
serial port
Dual-ported
drive channels
Host channels
Controller B
Figure 107. Connectors on the back of each controller
Protective cap
SFP module
10
o
Plastic tab
F10ug009
Figure 108. Unlocking the SFP module latch - plastic variety
Chapter 5. Replacing components
173