NEC 스토리지 소프트웨어 (NEC Storage M100/M300)

NEC Storage RemoteDataReplication

 Basic information
NEC Storage RemoteDataReplication replicates business volumes defined per logical disk between NEC Storage disk array systems, enabling use of replicated data at a remote site.
 Replicating data from one Storage system to another
- Volumes can be replicated between disk array systems.
 Replication of any volume at any time
- A replicated volume can be separated at any time to be used for a different purpose.
- For reconnection, the update differential management function enables quick resynchronization.
The following is a description of the main functions of NEC Storage RemoteDataReplication.
 Restoration protecting replicated volumes
When a replicated volume is copied to the master volume for restoration, selection is possible whether the replicated volume reflects access from business servers to the master volume or not.
 Remote replication
Remote replication is executed in a geographically distant site.
 Simultaneous replication of a pair in serial combination
A pair connected in serial combination by NEC Storage RemoteDataReplication and NEC Storage DynamicDataReplication can be replicated simultaneously.
 Remote pair operation
A pair in a remote disk array device can be operated remotely through a link of NEC Storage RemoteDataReplication.
 Application examples
 Backup concurrent with online business
Online data can be replicated easily. This replicated data can be used as a backup. Since data is replicated using an NEC Storage disk array system resource only, the operation does not put any impact on servers or influence online business. Data can be extracted from a replicated database and saved to a tape without interrupting on-going business operations. Online response during data saving is perfectly safe.
 Search operation concurrent with online business
By retaining the data for search operation independently in a replicated volume, business operation and search operation can be performed without influencing each other. With this configuration, disk access competition and deadlocks are eliminated.
 Concurrent batch processing
Concurrent batch processing using a replicated volume significantly reduces processing time.
 Building an application evaluation environment
An application evaluation environment can be configured easily by using replicated volumes. Repeated tests with the same data are possible by using a restored copy without reflecting master volume update to the replicated volume.