Veritas InfoScale™ 7.4.1 Virtualization Guide - AIX
- Section I. Overview
- Storage Foundation and High Availability Solutions in AIX PowerVM virtual environments
- Section II. Implementation
- Setting up Storage Foundation and High Availability Solutions in AIX PowerVM virtual environments
- Supported configurations for Virtual I/O servers (VIOS) on AIX
- Installing and configuring Storage Foundation and High Availability (SFHA) Solutions in the logical partition (LPAR)
- Installing and configuring Cluster Server for logical partition and application availability
- Supported configurations for Virtual I/O servers (VIOS) on AIX
- Setting up Storage Foundation and High Availability Solutions in AIX PowerVM virtual environments
- Section III. Use cases for AIX PowerVM virtual environments
- Application to spindle visibility
- Simplified storage management in VIOS
- Configuring Dynamic Multi-Pathing (DMP) on Virtual I/O server
- Configuring Dynamic Multi-Pathing (DMP) pseudo devices as virtual SCSI devices
- Extended attributes in VIO client for a virtual SCSI disk
- Virtual machine (logical partition) availability
- Simplified management and high availability for IBM Workload Partitions
- Implementing Storage Foundation support for WPARs
- How Cluster Server (VCS) works with Workload Patitions (WPARs)
- Configuring VCS in WPARs
- High availability and live migration
- Limitations and unsupported LPAR features
- Multi-tier business service support
- Server consolidation
- About IBM Virtual Ethernet
- Using Storage Foundation in the logical partition (LPAR) with virtual SCSI devices
- How DMP handles I/O for vSCSI devices
- Physical to virtual migration (P2V)
- Section IV. Reference
Cluster Server in the management LPAR
The logical partition (LPAR) which is a Cluster Server (VCS) node and controls other LPARs on the physical server is referred to as a management LPAR (MPLAR).
VCS monitors and manages LPARs using LPAR resources.
VCS enables the following for management LPARs:
Connects multiple LPARs to form a cluster for increased availability
Redundant Hardware Management Console (HMC) support
Multiple VIOS support
Enables nodes to cooperate at the software level to form a cluster
Enables other nodes to take predefined actions when a monitored application fails, for instance to take over and bring up applications elsewhere in the cluster
Enables monitoring and failover of LPARs configured in VCS as LPAR resources
The VCS LPAR agent supports redundant HMC configurations. VCS can use any HMC which is up and running to manage and monitor the LPARs.
Multiple VIOS support provides high availability to LPARs in case of VIO server(s) crash: LPAR agent provides high availability against VIO server(s) crash for the managed LPARs. If all the VIO servers specified are down, managed LPARs are failed over to another host.
For more information on Cluster Server features, see the Cluster Server Administrator's Guide.