How does Easy Tier address this problem?

IBM has proposed Easy Tier as part of a storage solution to address less-active data on flash in a storage environment.

How does Easy Tier address this problem?
A . It moves data to cloud storage.
B . It creates space-efficient flash copies.
C . It moves data to the appropriate tier.
D . It archives data to tape

View Answer

Answer: C

Explanation:

The system includes IBM Easy Tier, which is a function that responds to the presence of drives in a storage pool that also contains hard disk drives (HDDs). The

system automatically and nondisruptively moves frequently accessed data from HDD MDisks to flash storage MDisks, thus placing such data in a faster tier of

storage.

The system supports these tiers:

Tier 0 flash

Tier 0 flash tier exists when the pool contains high-cost, high performance flash drives.

Tier 1 flash

Tier 1 flash tier exists when the pool contains tier 1 flash drives. Tier 1 flash drives are lower-cost flash drives, typically with larger capacities, but slightly lower

performance and write endurance characteristics.

Enterprise tier

Enterprise tier exists when the pool contains enterprise-class MDisks, which are disk drives that are optimized for performance.

Nearline tier

Nearline tier exists when the pool contains nearline-class MDisks, which are disk drives that are optimized for capacity.

References: https://www.ibm.com/support/knowledgecenter/STVLF4_7.8.0/spectrum.virtualize.780.doc/svc_easy_tier.html