Cisco Cisco Prime Network Registrar 8.0 Guide De Dépannage
3.3 Production and DR Executives share a SAN/NAS or
mirrored database and share a virtual IP
All
Services
Running
Production
Executive
DR Executive
2.2.2.2
3.3.3.3
SAN/NAS
Mirrored DB
Virtual IP: 1.1.1.1
Virtual IP: 1.1.1.1
DR Executive
Offline
Figure 3. Server configuration prior to DR Event
All communications to the Executive occur over the virtual IP
address, which is configured on both the Production and DR
Executives. As shown in Figure 3, the database resides on a
SAN/NAS or otherwise mirrored database that is accessible by
SAN/NAS or otherwise mirrored database that is accessible by
both the Production and DR Executives. The DR Executive
remains offline during normal operations. When the
remains offline during normal operations. When the
Production Executive fails, the DR Executive is brought
online, and all Cisco Prime Network Registrar IPAM services
online, and all Cisco Prime Network Registrar IPAM services
are started. The DR Executive takes over the virtual IP
address previously used by the Production Executive. All
address previously used by the Production Executive. All
deployed agents will continue to point to the same, virtual, IP
address as before so no agent-side changes are required.
address as before so no agent-side changes are required.
Production
Executive
Offline
Production
Executive
DR Executive
2.2.2.2
3.3.3.3
SAN/NAS
Mirrored DB
Virtual IP: 1.1.1.1
Virtual IP: 1.1.1.1
All
Services
Started
Figure 4. DR Executive Online