Veritas InfoScale™ 7.3.1 Virtualization Guide - Linux on ESXi
- Section I. Overview
- Overview of Veritas InfoScale solutions in a VMware environment
- Introduction to using Veritas InfoScale solutions in the VMware virtualization environment
- Introduction to using Dynamic Multi-Pathing for VMware
- About Veritas InfoScale solutions support for the VMware ESXi environment
- Overview of Veritas InfoScale solutions in a VMware environment
- Section II. Deploying Veritas InfoScale products in a VMware environment
- Getting started
- Getting started
- Section III. Use cases for Veritas InfoScale product components in a VMware environment
- Storage to application visibility using Veritas InfoScale Operations Manager
- About storage to application visibility using Veritas InfoScale Operations Manager
- About discovering the VMware Infrastructure using Veritas InfoScale Operations Manager
- About the multi-pathing discovery in the VMware environment
- About near real-time (NRT) update of virtual machine states
- Application availability using Cluster Server
- Multi-tier business service support
- Improving storage visibility, availability, and I/O performance using Dynamic Multi-Pathing
- How DMP works
- Improving I/O performance using SmartPool
- Improving data protection, storage optimization, data migration, and database performance
- Protecting data with Veritas InfoScale product components in the VMware guest
- Optimizing storage with Veritas InfoScale product components in the VMware guest
- Migrating data with Veritas InfoScale product components in the VMware guest
- Improving database performance with Veritas InfoScale product components in the VMware guest
- Setting up virtual machines for fast failover using Storage Foundation Cluster File System High Availability on VMware disks
- About setting up Storage Foundation Cluster File High System High Availability on VMware ESXi
- Configuring coordination point (CP) servers
- Configuring storage
- Storage to application visibility using Veritas InfoScale Operations Manager
- Section IV. Reference
About storage availability using Dynamic Multi-Pathing in the hypervisor
DMP in the hypervisor provides multi-pathing to the guests. In the VMware environment, the storage presented to a guest is abstracted from the number of paths physically connecting the ESX server to the back-end storage. To the guest, everything looks like only a single path to each disk device, regardless of what underlying protection is available at the hypervisor. Therefore, installing DMP in the guest cannot provide multi-pathing functionality. However, in the hypervisor, DMP can see all of the paths and provides multi-pathing and I/O load balancing between them.
In a shared virtualized environment, a large number of applications run on the same infrastructure. A reliable and mission critical infrastructure requires that the storage remains available. Storage availability is even more critical in a virtualized environment than in the physical environment, because an outage impacts a much larger number of applications.
Multi-pathing is critical to ensure that the storage remains available. DMP provides multi-pathing and I/O load balancing between the virtual machines (VMs).
Most mission-critical servers are designed to reduce single points of failure. An VMware ESXi server is no exception to this. Due to the large number of virtual machines and applications that are typically hosted on a single server, hardware redundancy is critical. DMP for VMware provides seamless, out of the box management of storage arrays and storage, providing the resiliency necessary to provision mission-critical workloads on VMware.
To achieve storage availability using DMP, install DMP for VMware in the hypervisor.
See the Dynamic Multi-Pathing Installation Guide - VMware ESX.