PowerHA Geographic mirroring automatically selects an open port between 1024 and 65535 on the mirror copy node for receiving data. This port number is selected dynamically each and every time replication starts, enabling offering flexibility in a geographic mirroring environment to find an available port.
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This functionality requires a PTF to be installed on all nodes in the geographic mirroring environment. The required PTF PTFs for each supported release is as followsare:
Release | PTF |
|---|---|
7.2 | MF67883 |
7.3 | MF67881 |
7.4 | MF67632 |
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Only a single port number can be specified. This port number will be used as the data port IP address by all nodes in the geographic mirroring environment.
This functionality is supported only supported with clusters containing a single independent auxiliary storage pool (IASP) device in the cluster resource group (CRG). Clusters containing multiple IASP devices have the following additional restrictions:
Each CRG can only have a single IASP device.
Each CRG must use different data port IP addresses.
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