HP Array Controller HSG V8.7 Software - Manual (Page 267)

Upgrading the Subsystem 6–21
Caution The ECB must be disabled—the status light is not lit or is not
blinking—before disconnecting the ECB cable from the cache module.
Failure to disable the ECB could result in cache module damage.
5. Disconnect the ECB cable from the cache module.
6. Disengage the two retaining levers, remove the cache module, and place
the cache module onto a grounded antistatic mat.
Note Allowed cache module memory configurations are shown in
Figure 5–7 on page 5-42 and described in Table 6–2 on page 6–20.
7. If you are adding DIMMs, insert the new DIMM straight into the socket
and ensure that the notches in the DIMM align with the tabs in the
socket (see Figure 5–8 on page 5-44).
8. If you are replacing DIMMs, press down on the DIMM retaining levers
at either end of the DIMM you want to remove.
9. Grasp the DIMM and gently remove it from the DIMM slot.
10. Insert the replacement DIMM straight into the socket and ensure that the
notches in the DIMM align with the tabs in the socket (see Figure 5–8
on page 5-44).
11. In a dual-redundant controller configuration, repeat steps 4 through 10,
as appropriate, for the other cache module.
Note In a dual-redundant controller configuration, both cache modules
must contain the same memory configuration.
Caution Make sure you align the cache module in the appropriate
guide rails. If you do not align the module correctly, damage to the
backplane can occur.
12. Insert the cache module into its slot and engage its retaining levers.
13. Connect the ECB cable to the cache module.
14. In a dual-redundant controller configuration, repeat steps 12 and 13, as
appropriate, for the other cache module.
15. Mount the logical units on the host. If you are using a Windows NT
platform, restart the server.