HP rp8420 HP 9000 rp8420 Server - User Service Guide, Fifth Edition - Page 75

Verifying Presence of the Cell Boards, Configuring AC Line Status, Enter, Up, Down

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Verifying Presence of the Cell Boards To perform this activity, either connect to the MP over the customer console or connect the CE Tool (laptop) to the RS-232 Local port on the MP. After logging in to the MP, verify that the MP detects the presence of all the cells installed in the server cabinet. It is important for the MP to detect the cell boards. If it does not, the partitions will not boot. To determine if the MP detects the cell boards: 1. At the MP prompt, enter cm. This displays the Command Menu. Among other things, the Command Menu allows one to view or modify the configuration and look at utilities controlled by the MP. To look at a list of the commands available, enter he. You might have to press Enter to see more than one screen of commands. Use the Page Up and Page Down keys to view the previous or next screen of commands. To exit the Help Menu, enter q. 2. From the command prompt (MP:CM>), enter du. The du command displays the MP Bus topology. A screen similar to the following is displayed: Figure 4-17 The du Command Screen There will be an asterisk (*) in the column marked MP. 3. Verify that there is an asterisk (*) for each of the cells installed in the server cabinet, by comparing what is in the Cells column with the cells physically located inside the server cabinet. Figure 4-17 shows that cells are installed in slots 0, 1, 2, and 3 in cabinet 0. In the server cabinet, there should be cells physically located in slots 0, 1, 2, and 3. Configuring AC Line Status The MP utilities can detect if power is applied to each of the AC input cords for the server, by sampling the status of the bulk power supplies. During installation, use the following procedure to check the configuration for the AC line status and configure it to match the customer's environment. Selecting the Grid A only option directs the MP utilities to sense locations A0 and A1 for active power. Selecting the Grid B only option directs the MP utilities to sense locations B0 and B1 for Verifying Presence of the Cell Boards 75

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Verifying Presence of the Cell Boards
To perform this activity, either connect to the MP over the customer console or connect the CE
Tool (laptop) to the RS-232 Local port on the MP.
After logging in to the MP, verify that the MP detects the presence of all the cells installed in the
server cabinet. It is important for the MP to detect the cell boards. If it does not, the partitions
will not boot.
To determine if the MP detects the cell boards:
1.
At the MP prompt, enter
cm
.
This displays the Command Menu. Among other things, the Command Menu allows one
to view or modify the configuration and look at utilities controlled by the MP.
To look at a list of the commands available, enter
he
. You might have to press
Enter
to see
more than one screen of commands. Use the
Page Up
and
Page Down
keys to view the
previous or next screen of commands. To exit the Help Menu, enter
q
.
2.
From the command prompt (MP:CM>), enter
du
.
The
du
command displays the MP Bus topology. A screen similar to the following is
displayed:
Figure 4-17 The du Command Screen
There will be an asterisk
(*)
in the column marked
MP
.
3.
Verify that there is an asterisk (*) for each of the cells installed in the server cabinet, by
comparing what is in the
Cells
column with the cells physically located inside the server
cabinet.
Figure 4-17
shows that cells are installed in slots 0, 1, 2, and 3 in cabinet 0. In the server
cabinet, there should be cells physically located in slots 0, 1, 2, and 3.
Configuring AC Line Status
The MP utilities can detect if power is applied to each of the AC input cords for the server, by
sampling the status of the bulk power supplies. During installation, use the following procedure
to check the configuration for the AC line status and configure it to match the customer’s
environment.
Selecting the
Grid A only
option directs the MP utilities to sense locations A0 and A1 for active
power. Selecting the
Grid B only
option directs the MP utilities to sense locations B0 and B1 for
Verifying Presence of the Cell Boards
75