Roadmap For Performing Replication; Configuring Replication - Dell PowerVault DL4000 User Manual

Number of It is important to consider the number of agents protected per source core and how many you
Agents plan to replicate to the target. AppAssure 5 lets you perform replication on a per protected
server basis, so you can choose to replicate certain servers. If all protected servers must be
replicated, this drastically affects the change rate, particularly if the bandwidth between the
source and target cores is insufficient for the amount and size of the recovery points being
replicated.
Depending on your network configuration, replication can be a time-consuming process.
The following table shows examples of the necessary bandwidth per Gigabyte for a reasonable change rate
NOTE: For optimum results, adhere to the recommendations listed in the following table.
Table 1. Maximum Change Rate for WAN Connection Types
Broadband
DSL
Cable
T1
Fiber
If a link fails during data transfer, replication resumes from the previous failure point of the transfer after link
functionality is restored.

Roadmap For Performing Replication

To replicate data using AppAssure 5, you must configure the source and target cores for replication. After you configure
replication, you can then replicate agent data, monitor and manage replication, and perform recovery.
Performing replication in AppAssure 5 involves performing the following operations:
• Configure replication on the source and target machines.
• Replicate a new agent attached to the source core.
• Replicate an existing agent.
• Set replication priority for an agent.
• Monitor replication as needed. For more information on monitoring replication, see
• Manage replication settings as needed.
• Recover replicated data in the event of disaster or data loss.

Configuring Replication

AppAssure 5 provides two options for configuring replication, which are described in the following procedures:
• Configuring Replication for a Self-Managed Core
• Configuring Replication for a Core Managed by a Third Party
NOTE: Bandwidth specified by the ISP is the total available bandwidth. The outgoing
bandwidth is shared by all devices on the network. Make sure that there is enough free
bandwidth for replication to accommodate the change rate.
Bandwidth
768 Kbps and up
1 Mbps and up
1.5 Mbps and up
20 Mbps and up
Max Change Rate
330 MB per hour
429 MB per hour
644 MB per hour
838 GB per hour
Monitoring Replication.
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