Replication Actions And Packages - Oracle ZFS Storage Appliance Administration Manual

Remote Replication Concepts
To configure replication targets, see
"Creating a Replication Target (CLI)" on page
Related Topics
"Remote Replication Workflow" on page 470
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"Remote Replication" on page 469
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Replication Actions and Packages

A replication action specifies the project or share that will be replicated, the frequency of the
update, and selected options. Replication actions are created on the source appliance specifying
the following:
A replication group that includes either a project or individual shares
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Name of the target appliance
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Name of a storage pool on the target appliance (used only during the initial setup)
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Frequency (scheduled or continuous) of the update
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Additional options such as encryption of the data stream or disabling compression
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A replication group is specified implicitly by the project or share on which the action is
configured (see
pool cannot be changed after the action is created, but the other options can be modified at any
time. If a replication update is in progress when an option is changed, then the new value only
takes effect when the next update begins.
When a replication action is executed on the source appliance, a package on the target appliance
in the specified storage pool is created. The package on the target appliance contains an exact
copy of the source project and shares on which the action is configured as of the start time
of the last replication update. Actions are the primary unit of replication configuration on the
appliance.
Replication Modes: Scheduled vs. Continuous
Replication actions can be configured to send updates using either a schedule or on a
continuous basis. The replication update process itself is the same in both cases. This property
only controls the interval.
Because continuous replication actions send updates as frequently as possible, they result in
sending a constant stream of all filesystem changes to the target system. For filesystems with a
lot of churn (many files created and destroyed in short intervals), this can result in replicating
much more data than is actually necessary. However, as long as replication can keep up with the
data changes, this results in the minimum amount of data lost in the event of a data-loss disaster
on the source system.
530 Oracle ZFS Storage Appliance Administration Guide, Release OS8.6.x • September 2016
"Creating a Replication Target (BUI)" on page 474
"Replication Storage Pools" on page
475.
531). The target appliance and storage
or