Which Unity service task is used to reinstall the root operating system while leaving the user’s data intact?
Correct Answer:
B
Re-image a storage processor (SP) to safely fix problems with the system software that could not be resolved by rebooting the SP. Re-imaging analyzes the system software for errors and attempts to correct them instantly. Re-image an SP from the Service System page.
Your configuration settings and stored files will not be changed. References: https://community.emc.com/docs/DOC-40315
What is the maximum hierarchical Snapshot level, for both LUNs and file systems, on Dell EMC Unity arrays?
Correct Answer:
A
What pathing options are supported by Dell EMC Unity XT systems to provide a host with Fibre Channel access to block storage?
Correct Answer:
B
A Unity 400 system has Data at Rest Encryption licensed and enabled. Which operation(s) must be performed from the Unisphere Settings window to ensure the system is still operational after SP replacements?
Correct Answer:
C
The keystore is tied to the storage processors, so care must be taken when performing service operations in order to preserve the encryption keys. In the event that the chassis and both storage processors need to be replaced, both storage processors should not be replaced at the same time. Instead, the chassis replacement should be followed while retaining one SP until the array is back online before replacing the second SP. In the case that storage processors have already been replaced at the same time and the keystore was lost, the keystore may be restored from an external backup.
A storage administrator is considering adding another application to run on their Unity 300 but they are concerned about the application’s performance. They ask what is considered “normal” for CPU utilization. Based on Dell EMC best practices, what should be your response?
Correct Answer:
B
References: https://www.emc.com/collateral/white-papers/h15093-dell-emc-unity-best-practices-guide.pdf (p.9)
