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
About using IBM Workload Partitions (WPARs) with Veritas InfoScale products
You can use WPARs when you need an isolated environment, especially if you do not want to create new LPARs because of the limitation of the available resources. Here are a few recommended scenarios:
Application/workload isolation
Quickly testing an application
WPARs share the global resources with other WPARs in the same LPAR, which limits the usefulness of WPARs in some situations.
We recommend not using WPARs in the following situations:
Security: WPAR processes can be seen by the global environment from the central LPAR. If you are running a highly secure type of system, this may be a problem for you from a security standpoint. Further, the root administrator of your LPAR will now have access to your workload partition, possibly compromising the security that the application may require.
Performance: Each WPAR within the LPAR uses the same system resources of the LPAR. You need to be more careful when architecting your system and also when stress testing the system.
Physical devices: Physical devices are not supported within a WPAR. More details on WPAR administration can be found in the IBM red book on WPARs at
Limitations for using Veritas InfoScale products in AIX WPARs:
VxFS inside an AIX WPARs is not a supported configuration.
ODM inside an AIX WPARs is not a supported configuration
VRTSvxfs and VRTSodm are not installed inside the WPAR for this reason.