A customer needs to accelerate data access of a hot volume to multiple remote sites. Which NetApp ONTAP feature simplifies file distribution, reduces…

NetApp FlexCache technology is designed specifically for the scenario described. It creates a sparse, read/write cache of an origin volume at a remote location. When a client at the remote site requests data, it is served from the local cache, significantly reducing latency. If the data is not in the cache, it is fetched from the origin volume across the WAN and then cached for subsequent requests. This process accelerates data access for "hot" (frequently accessed) data, simplifies file distribution by automating the caching process, and lowers WAN bandwidth costs by minimizing redundant data transfers.

A. MetroCluster software: This is a high-availability and disaster recovery solution that provides synchronous replication for business continuity between two sites, not a caching solution for multiple remote sites.

C. SnapMirror Business Continuity: This is a zero Recovery Point Objective (RPO) and near-zero Recovery Time Objective (RTO) disaster recovery solution for critical applications, not a WAN acceleration or distributed caching feature.

D. FlexClone technology: This creates instantaneous, space-efficient, writable copies of volumes or LUNs within the same cluster, primarily for testing and development, not for caching at remote sites.

1. NetApp Technical Report 4743: FlexCache in ONTAP.

Section: Introduction, Page 4.

Quote: "FlexCache technology in NetApp ONTAP software is a remote caching capability that simplifies file distribution and lowers WAN costs... It improves performance by serving data to clients from a local cache instead of from a central data center that might be thousands of miles away." This directly supports the use of FlexCache for accelerating access, reducing latency, and lowering WAN costs for remote sites.

2. NetApp ONTAP 9 Documentation: Data protection using FlexCache volumes.

Section: What FlexCache is.

Quote: "A FlexCache volume is a sparsely populated volume that is located in a cluster that is physically distant from the origin of data... When a client requests data from the FlexCache volume, the data is served from the cache. If the data is not in the cache, it is retrieved from the origin volume." This confirms its function as a remote caching mechanism.

3. NetApp ONTAP 9 Documentation: MetroCluster concepts.

Section: What MetroCluster is.

Quote: "A MetroCluster configuration is a high-availability and disaster-recovery solution that provides data mirroring and transparent recovery from failures." This defines its purpose as HA/DR, not caching.

4. NetApp ONTAP 9 Documentation: SnapMirror Business Continuity (SM-BC) concepts.

Section: What SnapMirror Business Continuity is.

Quote: "SnapMirror Business Continuity (SM-BC) protects and provides rapid recovery for business-critical applications... SM-BC provides a zero RPO and near-zero RTO disaster recovery solution." This clearly positions it as a business continuity solution.