Veritas InfoScale™ 7.4.1 Virtualization Guide - AIX

Last Published:
Product(s): InfoScale & Storage Foundation (7.4.1)
Platform: AIX
  1. Section I. Overview
    1. Storage Foundation and High Availability Solutions in AIX PowerVM virtual environments
      1.  
        Overview of the Veritas InfoScale Products Virtualization Guide
      2.  
        About the AIX PowerVM virtualization technology
      3. About Veritas InfoScale products support for the AIX PowerVM environment
        1.  
          About IBM LPARs with N_Port ID Virtualization (NPIV)
      4.  
        About Veritas Extension for Oracle Disk Manager
      5.  
        Virtualization use cases addressed by Veritas InfoScale products
  2. Section II. Implementation
    1. Setting up Storage Foundation and High Availability Solutions in AIX PowerVM virtual environments
      1. Supported configurations for Virtual I/O servers (VIOS) on AIX
        1.  
          Dynamic Multi-Pathing in the logical partition (LPAR)
        2.  
          Dynamic Multi-Pathing in the Virtual I/O server (VIOS)
        3.  
          Veritas InfoScale products in the logical partition (LPAR)
        4.  
          Storage Foundation Cluster File System High Availability in the logical partition (LPAR)
        5.  
          Dynamic Multi-Pathing in the Virtual I/O server (VIOS) and logical partition (LPAR)
        6.  
          Dynamic Multi-Pathing in the Virtual I/O server (VIOS) and Veritas InfoScale products in the logical partition (LPAR)
        7.  
          Cluster Server in the logical partition (LPAR)
        8.  
          Cluster Server in the management LPAR
        9.  
          Cluster Server in a cluster across logical partitions (LPARs) and physical machines
      2.  
        Support for N_Port ID Virtualization (NPIV) in IBM Virtual I/O Server (VIOS) environments
      3.  
        About setting up logical partitions (LPARs) with Veritas InfoScale products
      4.  
        Configuring IBM PowerVM LPAR guest for disaster recovery
      5. Installing and configuring Storage Foundation and High Availability (SFHA) Solutions in the logical partition (LPAR)
        1.  
          Impact of over-provisioning on Storage Foundation and High Availability
        2. About SmartIO in the AIX virtualized environment
          1.  
            Performing LPM in the SmartIO environment
      6.  
        Installing and configuring storage solutions in the Virtual I/O server (VIOS)
      7. Installing and configuring Cluster Server for logical partition and application availability
        1.  
          How Cluster Server (VCS) manages logical partitions (LPARs)
      8.  
        Enabling Veritas Extension for ODM file access from WPAR with VxFS
  3. Section III. Use cases for AIX PowerVM virtual environments
    1. Application to spindle visibility
      1.  
        About application to spindle visibility using
      2.  
        About discovering LPAR and VIO in Veritas InfoScale Operations Manager
      3.  
        About LPAR storage correlation supported in Veritas InfoScale Operations Manager
      4.  
        Prerequisites for LPAR storage correlation support in Veritas InfoScale Operations Manager
    2. Simplified storage management in VIOS
      1.  
        About simplified management
      2.  
        About Dynamic Multi-Pathing in a Virtual I/O server
      3.  
        About the Volume Manager (VxVM) component in a Virtual I/O server
      4. Configuring Dynamic Multi-Pathing (DMP) on Virtual I/O server
        1.  
          Migrating from other multi-pathing solutions to DMP on Virtual I/O server
        2.  
          Migrating from MPIO to DMP on a Virtual I/O server for a dual-VIOS configuration
        3.  
          Migrating from PowerPath to DMP on a Virtual I/O server for a dual-VIOS configuration
      5. Configuring Dynamic Multi-Pathing (DMP) pseudo devices as virtual SCSI devices
        1.  
          Exporting Dynamic Multi-Pathing (DMP) devices as virtual SCSI disks
        2.  
          Exporting a Logical Volume as a virtual SCSI disk
        3.  
          Exporting a file as a virtual SCSI disk
      6. Extended attributes in VIO client for a virtual SCSI disk
        1.  
          Configuration prerequisites for providing extended attributes on VIO client for virtual SCSI disk
        2.  
          Displaying extended attributes of virtual SCSI disks
      7.  
        Virtual IO client adapter settings for Dynamic Multi-Pathing (DMP) in dual-VIOS configurations
      8.  
        Using DMP to provide multi-pathing for the root volume group (rootvg)
      9.  
        Boot device management on NPIV presented devices
    3. Virtual machine (logical partition) availability
      1.  
        About virtual machine (logical partition) availability
      2.  
        VCS in the management LPAR
      3. Setting up management LPAR
        1.  
          Configuring password-less SSH communication between VCS nodes and HMC
      4. Setting up managed LPARs
        1.  
          Creating an LPAR profile
        2.  
          Bundled agents for managing the LPAR
        3.  
          Configuring VCS service groups to manage the LPAR
      5.  
        Managing logical partition (LPAR) failure scenarios
    4. Simplified management and high availability for IBM Workload Partitions
      1.  
        About IBM Workload Partitions
      2.  
        About using IBM Workload Partitions (WPARs) with Veritas InfoScale products
      3. Implementing Storage Foundation support for WPARs
        1.  
          Using a VxFS file system within a single system WPAR
        2.  
          WPAR with root (/) partition as VxFS
        3.  
          Using VxFS as a shared file system
      4. How Cluster Server (VCS) works with Workload Patitions (WPARs)
        1.  
          About the ContainerInfo attribute
        2.  
          About the ContainerOpts attribute
        3.  
          About the WPAR agent
      5. Configuring VCS in WPARs
        1. Prerequisites for configuring VCS in WPARs
          1.  
            About using custom agents in WPARs
        2.  
          Deciding on the WPAR root location
        3.  
          Creating a WPAR root on local disk
        4.  
          Creating WPAR root on shared storage using NFS
        5. Installing the application
          1. Configuring the service group for the application
            1.  
              Modifying the service group configuration
            2.  
              About configuring failovers
        6.  
          Verifying the WPAR configuration
        7.  
          Maintenance tasks
        8.  
          Troubleshooting information
      6.  
        Configuring AIX WPARs for disaster recovery using VCS
    5. High availability and live migration
      1.  
        About Live Partition Mobility (LPM)
      2.  
        About the partition migration process and simplified management
      3.  
        About Storage Foundation and High Availability (SFHA) Solutions support for Live Partition Mobility
      4.  
        Providing high availability with live migration in a Cluster Server environment
      5.  
        Providing logical partition (LPAR) failover with live migration
      6. Limitations and unsupported LPAR features
        1.  
          Live partition mobility of management LPARs
        2.  
          Live partition mobility of managed LPARs
    6. Multi-tier business service support
      1.  
        About Virtual Business Services
      2.  
        Sample virtual business service configuration
    7. Server consolidation
      1.  
        About server consolidation
      2. About IBM Virtual Ethernet
        1.  
          Shared Ethernet Adapter (SEA)
      3.  
        About IBM LPARs with virtual SCSI devices
      4. Using Storage Foundation in the logical partition (LPAR) with virtual SCSI devices
        1.  
          Using Storage Foundation with virtual SCSI devices
        2.  
          Setting up DMP for vSCSI devices in the logical partition (LPAR)
        3.  
          About disabling DMP for vSCSI devices in the logical partition (LPAR)
        4.  
          Preparing to install or upgrade Storage Foundation with DMP disabled for vSCSI devices in the logical partition (LPAR)
        5.  
          Disabling DMP multi-pathing for vSCSI devices in the logical partition (LPAR) after installation or upgrade
        6.  
          Adding and removing DMP support for vSCSI devices for an array
        7. How DMP handles I/O for vSCSI devices
          1.  
            Setting the vSCSI I/O policy
      5.  
        Using VCS with virtual SCSI devices
    8. Physical to virtual migration (P2V)
      1.  
        About migration from Physical to VIO environment
      2.  
        Migrating from Physical to VIO environment
  4. Section IV. Reference
    1. Appendix A. How to isolate system problems
      1.  
        About VxFS trace events
      2.  
        Tracing file read-write event
      3.  
        Tracing Inode cache event
      4.  
        Tracing Low Memory event
    2. Appendix B. Provisioning data LUNs
      1.  
        Provisioning data LUNs in a mixed VxVM and LVM environment
    3. Appendix C. Where to find more information
      1.  
        Veritas InfoScale documentation
      2.  
        Additional documentation for AIX virtualization
      3.  
        Service and support
      4.  
        About Veritas Services and Operations Readiness Tools (SORT)

Managing logical partition (LPAR) failure scenarios

VCS handles the LPAR failures in the following cases.

Table: Failure scenarios and their resolutions

Failure scenario

Resolution

Physical server is down

When the physical server is down, the management LPAR as well as managed LPARs will be down. In this case, the managed LPARs which are running will be failed over to another system by VCS using the sysoffline trigger with the help of HMC. Ensure that HMC access is setup on all nodes of the cluster even if the node is not managing any LPAR.

If the managed LPAR is configured for live migration, make sure that profile file for the managed LPAR is created on other management LPARs and its path is configured in ProfileFile attribute. For details on ProfileFile attribute and creation of profile file:

See Providing logical partition (LPAR) failover with live migration.

Management LPAR is down but physical server is up

When the management LPAR is down, the physical server may not be down. The managed LPARs might be running. In this case, it is not desirable to automatically failover the managed LPARs. To ensure that the managed LPAR is not automatically failed over, the group that has LPAR resource should have SysDownPolicy = { "AutoDisableNoOffline" }. With this the groups will remain autodisabled on system fault. You can online the LPAR on any other system by setting autoenable for the group, after ensuring that the LPAR is down on the faulted system.

VIO servers are down

When all the VIO servers which are providing virtual resources to the managed LPARs are down, then the managed LPARs are failed over to another host. Ensure that VIOSName attribute of the LPAR resources is populated with list of all VIO servers which are servicing that LPAR. If VIOSName is not populated, managed LPARs will not be failed over in case of VIO server(s) crash. If any one of the VIO servers specified in VIOSName attribute is running, LPAR agent won't failover the managed LPARs.

HMC is down

If the environment has redundant HMC, then even if one of the HMC goes down, LPAR agent can still manage the LPARs without any issues. For this, ensure that MCName and MCUser attributes are populated with both HMC details.