InfoScale™ Cluster Server 9.0 Bundled Agents Reference Guide - AIX
- Introducing bundled agents
- Storage agents
- DiskGroup agent
- Notes for DiskGroup agent
- Sample configurations for DiskGroup agent
- DiskGroupSnap agent
- Notes for DiskGroupSnap agent
- Sample configurations for DiskGroupSnap agent
- Volume agent
- VolumeSet agent
- Sample configurations for VolumeSet agent
- LVMVG agent
- Notes for LVMVG agent
- Mount agent
- Sample configurations for Mount agent
- SFCache agent
- Network agents
- About the network agents
- IP agent
- NIC agent
- IPMultiNIC agent
- MultiNICA agent
- About the IPMultiNICB and MultiNICB agents
- IPMultiNICB agent
- Sample configurations for IPMultiNICB agent
- MultiNICB agent
- Sample configurations for MultiNICB agent
- DNS agent
- Agent notes for DNS agent
- About using the VCS DNS agent on UNIX with a secure Windows DNS server
- Sample configurations for DNS agent
- File share agents
- NFS agent
- NFSRestart agent
- Share agent
- About the Samba agents
- Notes for configuring the Samba agents
- SambaServer agent
- SambaShare agent
- NetBios agent
- Service and application agents
- Apache HTTP server agent
- Application agent
- Notes for Application agent
- Sample configurations for Application agent
- CoordPoint agent
- LPAR agent
- Notes for LPAR agent
- MemCPUAllocator agent
- MemCPUAllocator agent notes
- Process agent
- Usage notes for Process agent
- Sample configurations for Process agent
- ProcessOnOnly agent
- RestServer agent
- WPAR agent
- Infrastructure and support agents
- Testing agents
- Replication agents
LPAR agent
The LPAR agent brings online, takes offline, and monitors AIX logical partitions (LPARs). The LPAR agent can also migrate the LPAR from one physical server to another physical server. VCS monitors and manages LPARs and uses the LPAR agent to make LPARs highly available. The LPAR which is a VCS node and controls other LPARs on the physical server is referred to as management LPAR.
Each managed system (physical server with AIX logical partitions) uses a Hardware Management Console (HMC) to manage the software configuration and operation of LPARs. The HMC also monitors and identifies hardware problems. The LPAR agent communicates with the HMCs to manage and check the status of LPARs.
The LPAR agent supports deployment of a redundant HMC. AIX virtualization supports two HMCs and you can use two HMCs in your LPAR resource configuration. If one HMC fails, the LPAR agent communicates with the other HMC. Hence, you need to set up password-less SSH access for HMCs on all VCS systems in the cluster.
See Required attributes for LPAR agent.
The LPAR agent also provides protection against failure of the virtual input output server (VIO server). You can run multiple VIO servers on a single system. If one VIO server fails, the LPAR agent enables communication through the other VIO servers. Disaster Recovery of LPARs is supported.
See Optional attributes for LPAR agent.
All the nodes of the cluster on which the LPAR is configured to failover must have access to the OS image.
Note:
The PhysicalServer attribute of the system and the SysDownPolicy attribute of the group must be configured for LPAR resources.
For more information, see the following sections:
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