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December 24th, 2014 01:00

RecoverPoint Consistency Group and Distribute consistency group?

What are the differences between consistency groups and distribute consistency groups. What are their supported scenario? Thank you

2 Intern

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2.1K Posts

December 24th, 2014 02:00

By default, consistency groups transfer data through one primary RPA that is designated by the system during consistency group creation and can be modified at any time through the group policy settings. Each RPA has a maximum throughput rate which it can handle, limited by available hardware resources. This limits the maximum throughput of the consistency group.

For a higher throughput rate, and to handle the load of larger consistency groups across multiple RPAs.

Distributed “Consistency groups” allow users to create and use consistency groups that require a total throughput and IOPS rate that exceeds the supported throughput and IOPS rate of a single RecoverPoint appliance, and prevent users from having to split data that requires strict write-order fidelity into multiple consistency groups. They do so by dividing the consistency group into four segments, and running these segments on one primary RPA and one to three additional secondary RPAs, as defined by the user. Distributed groups can handle a much higher throughput and IOPS rate (see the EMC RecoverPoint Release Notes for this limit) regardless of the amount of data being replicated. Up to eight distributed consistency groups can be defined in RecoverPoint, and the total number of distributed and non-distributed consistency groups is 128.

2 Intern

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2.1K Posts

December 24th, 2014 02:00

You should consider setting a consistency group as distributed when:

  • The maximum throughput rate of a single RPA is not sufficiently sustaining the write-rate or peaks of the consistency group (see the EMC RecoverPoint Release Notes for the maximum throughput rate of a single RPA).
  • Your consistency group is experiencing high loads often.
  • You expect a consistency group will, in the future, require a higher throughput rate than that of a single RPA. In this case, it is preferable to initially create the consistency group as distributed, rather than modifying an existing consistency group after creation.

41 Posts

December 24th, 2014 19:00

Thank you. It helps

2 Intern

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2.1K Posts

December 24th, 2014 20:00

NP. You can aslo search the docu54086_RecoverPoint-Documentation-Set to find more description on support.emc.com

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