Free EMC D-PDD-DY-23 Practice Exam with Questions & Answers | Set: 3

The system show performance command provides an overview of the overall system performance statistics on the PowerProtect DD appliance. This includes key performance metrics such as throughput, IOPS, and other indicators that help in monitoring and diagnosing the system's operational performance.

Explanation: PowerProtect DD allows up to 750 snapshots per MTree, supporting efficient data protection and recovery with minimal impact on storage resources. This feature provides extensive backup versioning options for granular data recovery.

Explanation: When configuring a chain with ES40 SAS shelves and DS60 shelves in a PowerProtect DD environment, the maximum allowable number of shelves on that chain is three. This limitation is due to compatibility and bandwidth requirements for maintaining optimal performance and reliability across the SAS chain. Mixing different shelf models (ES40 and DS60) in a single chain affects the maximum supported configuration, and following this limitation ensures that the data transfer speeds and stability are not compromised.

In a DD Boost-enabled environment, the storage node manages the backup devices, such as disk or tape devices, that are used for storing backup data. DD Boost distributes some of the deduplication processing to the backup server or storage node, helping to optimize performance. The storage node handles the communication with the backup devices and ensures that the backup data is efficiently stored.

PowerProtect DD's DDOS (Data Domain Operating System) supports up to 800 simultaneous CIFS connections, allowing multiple clients to connect and access CIFS shares concurrently. This limit is designed to ensure optimal performance while managing multiple data streams efficiently.