Welcome to the unity IO module replacement demonstration.
For more detailed instructions. I always 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 is a hardware issue reported. Click on the hardware icon to view more details.
This brings us to the system view page here. We can see that storage processor A or spaio module one needs attention. Let's click on it for more information. Now we can see where IO module one and P A is located. Now let's take a look at the alerts page to confirm the problem. Here. We see some expected alerts that might be generated from an IO module fault to begin the replacement procedure.
Navigate to the system service page and then select service tasks in order to replace an IO module. In SP A, we must first put it in service mode. Confirm that the enter service mode button for SP A 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 led is flashing alternating amber and blue before continuing to the next task. Here, we can see that SP A 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, bail to the left and remove the power cord.
For sp A pull the torque limit screw handle out of the sp assembly and turn it counter clockwise to release SP A from the D PE. When the outward movement stops, use the handle to pull the sp partially out of the enclosure to ensure it is uncoupled from the internal power source.
You do not need to fully remove the SP assembly from the enclosure to replace the IO module. Verify that all SP led S are off to ensure that the SP has completed its power off. After the removal from the disk processor enclosure or D pe, it may take a few minutes for the sp to deplete its internal power source.
Once it's removed from the D PE, locate the faulted IO module in the partially removed SP assembly and then label and disconnect any connected cables, pull the trigger mechanism on the IO module handle to release it and then gently pull the module from the slot, align the replacement module with the empty slot and carefully push it into the enclosure.
When the IO module appears seated, push and release the small button on the handle. If the button remains in the module is fully seated, connect any cables that were removed earlier. Now slide the SP into the DP enclosure 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 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, connect any cables that were removed earlier.
Here, we can see the SP A is in the service mode with the SP fault led flashing, alternating amber and blue. Now we can log back into unisphere to reboot the SP. Now that we've replaced the IO module, let's log back into unisphere using the admin account. 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 SP A and S SPB are reporting errors. If we select SP A, 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 A 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 out and log back into unisphere to refresh the view. Here. In the unity dashboard, we can see a healthy system with no system health alerts to check the IO module status.
Navigate to the system view page and select the enclosures tab shown here is the D pe rear view here. We can see that SP IO Mojo one is now operating normally. Now let's check the alerts page here. We can see that there are a substantial number of alerts generated with an IO module failure in the associated replacement procedures.
Most notably at the top, we can see that the storage system is now operating in normal mode to complete the IO module replacement. We are going to acknowledge all the alerts associated with this action. This completes the unity IO module replacement demonstration.
