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Veritas InfoScale™ 7.4.1 Virtualization Guide - AIX
Last Published:
2019-02-01
Product(s):
InfoScale & Storage Foundation (7.4.1)
Platform: 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
Migrating from other multi-pathing solutions to DMP on Virtual I/O server
DMP supports migrating from AIX MPIO and EMC PowerPath multi-pathing solutions to DMP on Virtual I/O server.
To migrate from other multi-pathing solutions to DMP on a Virtual I/O server
- Before migrating, back up the Virtual I/O servers to use for reverting the system in case of issues.
- Shut down all VIO client partitions that are serviced by the VIOS.
- Log into the VIO server partition. Use the following command to access the non-restricted root shell. All subsequent commands in this procedure must be invoked from the non-restricted shell.
$ oem_setup_env
- Use commands like lsdev and lsmap to view the configuration.
- Unconfigure all VTD devices from all virtual adapters on the system:
dmpvios1$ rmdev -p vhost0
Repeat this step for all other virtual adapters.
- Migrate from the third-party device driver to DMP.
Note that you do not need to do turn on the dmp_native_support again, because it is turned on for VIOS by default. You can use the vxdmpadm gettune dmp_native_support command to verify that the tunable parameter is turned on.
For the migration procedure, see the Storage Foundation Configuration and Upgrade Guide.
- Reboot the VIO Server partition.
- Use the following command to verify that all Virtual SCSI mappings of TPD multi-pathing solution have been correctly migrated to DMP:
dmpvios1$ /usr/ios/cli/ioscli lsmap -all
- Repeat step 1 through step 8 for all of the other VIO server partitions of the managed system.
- After all of the VIO Server partitions are successfully migrated to DMP, start all of the VIO client partitions.