SIGNA MR355 / SIGNA MR360
Service Manual
5856356-3EN Revision 5.0
Basic Service Documentation. Copyright General Electric Company.
Object ID: 00000018WIA30681E20GYZ
Topic ID: id_13106160 Version: 6.0
Date: Apr 26, 2020 10:23:49 PM

ICN On/Off procedure for Dell R640 (Gen 7)

Prerequisites

Table 1. Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	0 minutes	30 minutes	0 minutes

Table 2. Safety

Warning

ELECTROCUTION HAZARD!

DANGEROUS VOLTAGES ARE PRESENT THROUGHOUT THE SYSTEM CABINET WHEN POWER IS APPLIED.

REFER TO the MR Service Safety Manual, PN 5452735.

Notice

Follow this procedure for removing power to the ICN chassis. Failure to properly power down ICNs may result in premature ICN failure.

Do not turn power off to the ICNs using the power button on the front panel. The ICNs have software running on disk drives that may become corrupted if not powered down properly.

About this task

This procedure documents the proper methods of shutdown for ICN Gen7 (Dell R640) . The ICNs are powered up when the host is started. There is no need to switch the ICNs on individually. If needed, you can switch on the ICNs from the VRE Power Control utility (Switch on ICNs from VRE power control).

The ICNs are powered down when the host software is shut down. To shut the ICNs down individually, use the VRE Power Control utility (Power down ICNs from VRE power control)

If the preferred shutdown method does not work, a last resort is to use the ICN power button (Power Off ICNs manually).

Switch on ICNs from VRE power control

Procedure

On the Common Service Desktop, go to Utilities > Toolbox > VRE > Power Control.
Click POWER ON ICN for the selected ICN.
The ICN is automatically powered on.
The Dell ICN displays the boot status on the LED readout, located on the front panel of the ICN.
If the application software is down, you can power on the ICNs from the xterm command line. Type: /etc/init.d/poweron_vres start and press Enter.

Power down ICNs from VRE power control

About this task

This is the preferred method for shutting down the ICNs.

Procedure

At the host computer, on the Service Browser, select Utilities > Toolbox > VRE > Power Control.

Figure 1. Power control
Confirm the ICN numbers and their MAC addresses. The MAC addresses are printed on a sticker on the front of the ICNs.
Click POWER OFF VRE. Wait for the ICN to power off.

The screen displays the power status of the ICN as it is switching off.
Refresh the Power Control link to see the current state of the ICN.

Figure 2. ICN 1 switched Off
The Dell Gen 7 ICN (part 5941100) is powered down when the green power LED located on the upper left side of the front of the ICN for Dell Gen 7 is not illuminated.

Figure 3. ICN Front Panel Gen 7

Power down from root level

About this task

If the application software is down, you can power down the ICNs using command line at the root level.

Procedure

Log into the application using the root login.

Note: It is possible that the customer changed the default password. If you cannot log in, contact the customer for the correct password.
In the xterm window, type: /etc/init.d/poweron_vres stop and press Enter.

Figure 4. VRE Stop command

The ICN(s) should turn off after one minute.

The Dell ICN is powered down if the green power LED located on the upper left side of the front of the ICN is not illuminated.

Power Off ICNs manually

About this task

Notice: If neither the browser nor the command line are accessible, the ICNs can be powered off manually. Try this method before powering off the GOC. This is the preferred method because it does not corrupt the files on the hard drive.

Procedure

If the OS freezes or is not responding, then the soft method did not work properly. In this case, hold the power button down for six seconds to force the power off.

Finalization

No finalization steps.