How to replace a DPE Cooling Module for Unity

This video will demonstrate the replacement procedure of a DPE Cooling Module for the Unity.

Welcome to the unity DP cooling module replacement demonstration. For more detailed instructions. I was referred to the applicable procedure on support dot EMC dot com to begin, we're going to log into unisphere using the admin account. As we can see on the unity dashboard in the system health window, there are two hardware issues reported. Click the hardware icon to view more details. This brings us to the system view page here. We can see that this processor enclosure or DP cooling module A four needs attention. Let's click on it for more information. Now we can see where DP cooling module four in storage processor A or SP is located. We can also take a look at the alerts page to confirm the problem here.

We see the alerts generated from ad P fan or cooling module fault to begin the replacement procedure. Navigate to the system service page and then select service task in order to replace a cooling module. In SP, we must first put it in service mode. Confirm that the enter service mode button for SP is highlighted and then click execute when prompted. Enter the service, password entering service mode stops IO on the SP so that it can be safely removed. Wait until the sp fault le is flashing alternating amber and blue before continuing to the next task. Here, we can see that P is in service mode. Also notice that the unsafe to remove led is illuminated on SPB. Make sure that you do not remove an SP with the unsafe to remove led illuminated. Begin by rotating the power cord retention bale to the left and remove the power cord for spa.

Make sure any network or IO module cables are labeled and then remove them. Do not remove any cables from SPB, pull the torque limit screw handle out of the SP assembly and turn it counterclockwise to release spa from the DP. When the outward movement stops, the SP assembly is ready for removal. Use the handle to pull the SP assembly outward enough to grasp the sides with both hands. Then with both hands supporting the SP assembly, pull the sp assembly out of the enclosure place the SP assembly with top side upward on a clean flat static free work surface. Verify that all P assembly LEDs are off to sure that the SP has completed its power off after the removal from the DP or disk processor enclosure. While pushing down the blue release button, slide, a top cover rear wood approximately one half inch until it stops. Lift the top cover upward and remove it from the SP.

We're going to press in on the tabs on both sides of the airflow baffle to remove it. This is not required here but will help with the visual clarity. Locate the faulted cooling fan disconnect the cooling fan power cable from the motherboard, press in on the blue release button on the front of the module and lift the cooling fan upward from the motherboard position, the replacement fan so that its rear is angled into the fan mounting position in the sp assembly, press downward on the cooling fan to log it in position, connect the cooling fan power cable to the connector on the motherboard. Next align the two retaining clips on the air flow baffle with the slots on the side of the SP assembly and push downward on it to secure it to the sp position. The top cover over the SP assembly and align it with the slots in the sides at the rear of the assembly, pull the top cover forward approximately one half inch to secure it in place.

Align the SP assembly with the enclosure slot and slide it into the slot until it stops. Turn the orange torque limit screw handle clockwise. Until you hear a click sound from the handle. The click sound indicates the torque limit is reached and the sp assembly is seated fully in the enclosure, push the orange torque limit screw handle into the sp assembly until you hear a click again. The click indicates the screw handle is secured in the assembly. The SP will begin to boot into the service mode. Reconnect each IO module cable and network cable into the same port from which it was removed, connect the ac power cord to the power supply and secure the cord with the retention bale. Here, we can see that the P has booted into service mode with the SP fault led flashing, alternating amber and blue.

Now we can log back into unisphere to confirm the replacement. Now that we are logged back into unisphere. We can see we have some hardware issues. These are expected errors. Let's click on the hardware error to confirm here. We can see B and SPB are reporting errors. If we select SP, we can see that it's reporting that it is in service mode. If we click on SPB, we can see that it's reporting an unsafe to remove condition. Since these are both expected errors, we can now go back to the service task page and reboot sp this action will reboot sp into normal mode. Select reboot for SP A and then click on execute when prompted. Enter the service password note that it may take up to 20 minutes for the system to complete its reboot and return to normal after approximately 20 minutes log back into unisphere. Let's check the cooling module status by navigating to the system view.

Click on the enclosures tab and then select the top view here. We can see that D PE cooling module A four is now operating normally. Now let's check the alerts page here. We can see the alerts associated with this procedure. We see the original cooling module alert and then the user executed enter service mode task. Then we see spa rebooting and finally ending with the storage system operating in normal mode to complete the cooling module replacement task. We're going to acknowledge all the alerts associated with this action. This completes the unity DP cooling module replacement demonstration.