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Chapter 6: DXi4701 Replication
Understanding Data Replication
114
Quantum DXi4701 User’s Guide
Note:
To schedule replication for a share or partition, use the
Configuration > Scheduler
page (see
on page 297). To limit the amount of
network bandwidth used for replication, enable a constant
throttle (see
schedule replication throttling (see
Understanding Data Replication
During data replication, data is sent from one system (the source) to
another system, usually in another location (the target). For example,
you might replicate data from a branch office (the source) to a central
office (the target).
Sources
send
replicated data, and targets
receive
replicated data. A
target system can receive data from up to ten sources. A source system
can send data to up to two targets. Finally, one system can act as both a
source and a target.
Replication works only with deduplicated data, and data is compressed
before it is replicated. Because of this, the amount of data transmitted
between systems during replication is greatly reduced compared to the
original amount of data stored. In addition, a data block is transmitted
only if the target does not already have a copy of the block. Finally, data
can optionally be encrypted before it is transmitted.
The DXi4701 can perform the following types of replication:
•
•
Directory/File or Cartridge Based Replication
•
•
Replication
Replication occurs when replication is enabled for a deduplicated NAS
share or VTL partition and a replication schedule is configured (or
Summary of Contents for DXi4701
Page 1: ...User s Guide Quantum DXi4701 with DXi 2 3 4 Software 6 68106 01 Rev C...
Page 126: ...Chapter 4 DXi4701 Configuration Wizards Support Wizard 100 Quantum DXi4701 User s Guide...
Page 138: ...Chapter 5 DXi4701 Home Page Current Activity Overview 112 Quantum DXi4701 User s Guide...
Page 384: ...Chapter 9 DXi4701 Configuration Contacts 358 Quantum DXi4701 User s Guide...
Page 418: ...Chapter 10 DXi4701 Utilities Reboot Shutdown 392 Quantum DXi4701 User s Guide...
Page 436: ...Appendix B Troubleshooting Common Problems and Solutions 410 Quantum DXi4701 User s Guide...