Describe and Manage FAST Cache UNITY-OPERATE Practice Questions (Page 4)

Questions 16–20

1. 16expert · hard

   A Unity array has FAST Cache enabled. The administrator wants to disable FAST Cache permanently and repurpose the SSDs for a new pool. What is the correct procedure?

   • ADisable FAST Cache in Unisphere, wait for the cache to flush, then delete the FAST Cache pool and add the SSDs to a new pool.
   • BRemove the SSDs physically and then disable FAST Cache.
   • CDisable FAST Cache and immediately add the SSDs to a new pool without deleting the FAST Cache pool.
   • DDelete the FAST Cache pool directly without disabling FAST Cache.
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A Unity array hosts a virtualized server environment. The administrator wants to improve performance for a mix of VMs with varying I/O patterns. The array has unused SSDs. What is the primary benefit of enabling FAST Cache for this environment?

   • AIt automatically moves VMs to faster storage tiers.
   • BIt reduces the number of VMs that can be hosted.
   • CIt provides a shared flash cache that can benefit all VMs by caching hot data.
   • DIt allows each VM to have its own dedicated cache.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   Which action is part of managing FAST Cache on a Dell Unity system?

   • AEnabling or disabling FAST Cache as needed
   • BReformatting the flash drives to change their file system
   • CDeleting FAST Cache to free up storage capacity
   • DManually assigning data to FAST Cache
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   What is the typical performance impact of FAST Cache on read-intensive workloads?

   • ARead throughput decreases because cache adds overhead
   • BRead performance is unaffected because cache only helps writes
   • CRead latency decreases because frequently accessed data is served from flash
   • DRead latency increases because flash is slower than DRAM
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   How can an administrator monitor the performance of FAST Cache on a Dell Unity system?

   • ABy running a command-line utility to test cache speed
   • BBy checking the FAST Cache status and performance metrics in Unisphere
   • CBy physically inspecting the flash drives for activity LEDs
   • DBy reviewing the system's syslog for cache errors
   Reveal Solution Discussion Select an answer first