Quantum DXi4700 User Manual page 127

Chapter 6: Replication
Replication
Quantum recommends that you always replicate a new share or partition immediately after creating it.
This establishes the initial data structure on the target system and greatly increases the speed of the
first replication.
6. Choose one of the following methods to regularly replicate the new share or partition:
(Recommended) Use the Scheduler page to set up a schedule for performing replication
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automatically after backups complete (see
page 269).
Manually perform replication at frequent intervals (see
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After replication, a snapshot is sent to the target system. You can use the snapshot to recover the replicated
share or partition on the target system (see
the next page) or restore the share or partition to its original location on the source system (see
Overview: Performing a share or partition Failback on the next
Important Information: Setting up and Performing Replication
If you do not configure a replication schedule or manually replicate the share or partition on a regular
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basis, your data is not protected. While the DXi4700 continually sends data to the target system in the
background to optimize the replication process, a snapshot that preserves the complete structure of
your data is sent to the target system only when a scheduled or manual replication job occurs. If you
do not regularly and frequently replicate your data as described in Step 6 above, it cannot be restored
at a later time.
If a replication is not scheduled or run manually, data is still continuously sent to the target once
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replication is configured on the source DXi4700. This can potentially fill up the target DXi4700.
Note: To limit the amount of network bandwidth used for replication, enable a constant throttle (see
Enabling System Throttling on page
Throttling on page
Task Overview: Setting Up and Performing Directory/File or Cartridge Based Replication
To automatically replicate files or cartridges from a source system and immediately recover them for use on
a target system:
1. Perform the following steps on the target system:
a. Add the source system to the list of allowed replication sources (see
on page 261).
b. Create a new share or partition with deduplication enabled (see
or Adding a VTL Partition on page
c. Enable Directory/File or Cartridge Based Replication for the new share or partition and specify the
Sync ID (see or
2. Perform the following steps on the source system:
Quantum DXi4700 User's Guide
Task Overview: Recovering a Replicated Share or Partition on
259), or schedule replication throttling (see
269).
209).
Configuring Directory/File or Cartridge Based Replication on page
Scheduling a Share or Partition for Replication on
Replicating a Share or Partition on page
page).
Task
Scheduling Replication
Adding a Replication Source
Adding a NAS Share on page 194
134).
135).
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