Feature

Description

Quick access time

Data in the local cache can be accessed much faster (up to 10 times and more) as compared to accessing the same data stored on chunk servers in the cluster.

No network bandwidth consumption

Cluster network bandwidth is not consumed because the data is accessed locally.

Special boot cache

Local cache uses a special boot cache to store small amounts of data on file openings. This significantly speeds up the process of starting virtual machines and Containers.

Cache survivability

Local cache is persistent and can survive a graceful system shutdown; however, it is dropped when the system crashes.

Sequential access filtering

Only randomly accessed data is cached.

Data backup applications may generate a huge amount of sequential IO. Preventing such IO from being cached helps to avoid stressing the cache.