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Unisphere and Unisphere Central 2020 R1 Administrator's Guide

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Live Volume Roles

There are two roles for Live Volumes: primary and secondary. These roles determine the direction of the replication, and they can be swapped automatically or manually. Write performance is reduced for the secondary volume because the primary volume must also acknowledge these writes.

Live Volume Role Description
Primary
  • Hosts the primary volume, which is like the source volume for a conventional replication
  • Replicates the primary volume to the secondary volume
  • Processes all I/O from both the primary and secondary site
Secondary
  • Hosts the secondary volume
  • Accepts I/O for the Live Volume and routes it to the primary volume on the primary Storage Center

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