Qsan XS5224D User Manual page 30

SSD Cache
Smart Response Technology (also known as SSD cache) allows an SSD to function as
cache for a HDD volume. It is a secondary cache that improves performance by keeping
frequently accessed data on SSDs where they are read/write far more quickly than from the
HDD volume.
Snapshot
A volume snapshot is the state of a system at a particular point in time.
Local Clone
Local clone function has another physical data copy as the original volume.
Remote Replication
Remote replication function prevents primary site failure by replicating data to the remote
sites.
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