EMC Updated D-PDD-DY-23 Exam Questions and Answers by reid

In a PowerProtect DD system, when setting up expansion shelves, the cabling follows a specific sequence to ensure proper communication between the controller and the shelves. The host port on the last shelf in the chain is connected to the expansion port of the controller to complete the loop. This ensures that data flows correctly between the controller and all shelves in the chain.

Explanation: Expiring snapshots and initiating file system cleaning are effective ways to free up space on a full PowerProtect DD system. These actions help reclaim storage by removing old, unneeded data without impacting active backups. When a PowerProtect DD system is full and no further data can be written or deleted, the following actions can be taken to free up space:

Expire Existing Snapshots: This process involves removing old or expired snapshots that are no longer needed, which helps in reclaiming space within the system.

Start File System Cleaning: File system cleaning is a maintenance operation that reclaims unused space by consolidating and removing data that is no longer needed, such as expired or deleted data segments. This process is essential in freeing up capacity when the system is near or at full utilization.

These steps allow administrators to make space available on the system without immediately adding new storage or altering the configuration.

Explanation: The gzfast compression algorithm is the default for PowerProtect DD3300, balancing compression efficiency and performance. It ensures data is compressed without compromising backup or restore speeds.