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In order to create Active-Active volumes and provision them to the host, follow the steps below based on the desired host access type. 

• Host PowerTools will be used to create a new volume and the mapping to the host.
• The InfiniBox management console is used to set the Active-Active replication on the volume.

Host Access

Hosts can access Active-Active volumes in one of two ways:

• Uniform access - access both peers. (both systems)
• Non-unifrom - access only one of the peer. (one of the systems only)

Provisioning Active-Active volumes with Uniform Host Access 

1. Connect the host to both systems that will contain the Active-Active volume peers. 
2. If the volume is not already provisioned, provision a volume on one of the systems. 
   
   • For instructions see: Provisioning storage to the host
   • Upon success, the volume is created and mapped to host.
3. Login to the system on which the volume was created.
   1. Locate the desired volume. 
   2. Create Active-Active replication on the volume with the other system. 
4. Login to the other system.
5. Map the Active-Active volume peer on the other system to the host.
   
   • For instruction see section "Mapping a volume" on: Provisioning storage to the host
   • It is recommended to map both peers with the same LUN ID.
6. Once the Active-Active replication is set, the peers can be mapped to additional hosts as required. 
   

Provisioning Active-Active volumes with Non-uniform Host Access 

1. Connect the host to one of the systems that will contain the Active-Active volume peer. 
2. If the volume is not already provisioned, provision a volume on the system. 
   • Follow the instructions on: Provisioning storage to the host
   • Upon success, the volume is created and mapped to host. 
3. Login to the system on which the volume was created:
   1. Locate the desired volume.
   2. Create Active-Active replication on that volume with the other system.
4. Once the Active-Active replication is set, each peer can be mapped to additional hosts as required.