EMC Proven Professional – PowerMax Specialist — Question 125

A system administrator experienced a power failure in their environment. To which device will cache de-stage?

Answer options

• A. M.2 SSD on each Storage Processor
• B. First four disks in the Disk Processor Enclosure
• C. Cache does not need to de-stage as it is now non-volatile
• D. Backup Battery Unit will keep the data alive in cache

Correct answer: A

Explanation

The correct answer is A because the M.2 SSDs on each Storage Processor serve as the primary storage destination for the cache de-staging process during power interruptions. Option B is incorrect as the first four disks in the Disk Processor Enclosure are not the immediate targets for cache data. Option C is false since cache typically needs to de-stage to a stable storage medium, and D is misleading because while the Backup Battery Unit protects data temporarily, it does not serve as a permanent storage solution for de-staging.