Describe and Manage FAST Cache UNITY-OPERATE Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   When configuring FAST Cache on a Dell Unity system, what is a key consideration for drive selection?

   • AUse flash drives that are supported by the system for FAST Cache
   • BUse only SAS drives to ensure compatibility
   • CUse the largest capacity drives available to maximize cache size
   • DUse the same drive type as the primary storage tier
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   What is the primary purpose of FAST Cache on a Dell Unity storage system?

   • ATo automatically move frequently accessed data to a higher-performance flash tier
   • BTo provide a secondary tier of flash storage for capacity expansion
   • CTo extend the system's cache with flash drives, improving performance for active data
   • DTo replace the need for a separate storage tier by using RAM as a cache
   Reveal Solution Discussion Select an answer first
4. 3expert · hard

   A Unity array has FAST Cache enabled. The administrator notices that the FAST Cache hit rate is high, but overall system performance has not improved as expected. What is the most likely reason?

   • AThe workload is write-heavy, and FAST Cache is not helping with writes.
   • BFAST Cache is using the wrong RAID level.
   • CFAST Cache is too small for the workload.
   • DThe bottleneck is not storage I/O but CPU or network.
   Reveal Solution Discussion Select an answer first
5. 4application · easy

   A Unity array has FAST Cache enabled. The administrator wants to monitor the effectiveness of FAST Cache to determine if it is providing the expected performance benefit. Which metric should the administrator examine in Unisphere?

   • AFAST Cache hit rate
   • BNumber of FAST Cache devices
   • CDRAM cache hit rate
   • DPool utilization percentage
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A Unity array has FAST Cache enabled with a set of SSDs. The administrator needs to temporarily disable FAST Cache to perform maintenance on the SSD shelf. What is the correct procedure to disable FAST Cache?

   • APhysically remove the SSDs while FAST Cache is still enabled; the system will automatically rebuild the cache.
   • BDisable FAST Cache from the storage processor's service menu.
   • CUse Unisphere to disable FAST Cache, then wait for the cache to flush before removing the SSDs.
   • DDelete the FAST Cache pool using the CLI, then re-create it after maintenance.
   Reveal Solution Discussion Select an answer first