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 visibility using Dynamic Multi-Pathing (DMP) in the hypervisor
Dynamic Multi-Pathing (DMP) for VMware in the hypervisor provides visibility to the storage in the VMware environment. DMP provides an user interface that is integrated into the vCenter, so that you can easily access information about the storage attributes, extended attributes, and types of storage in the environment. DMP also provides a command line interface.
When you install DMP in the hypervisor, DMP provides access to storage attributes such as the Array Volume Identifiers (AVID) for LUNs. You have immediate visibility into the active I/O policy, the number of paths, and the number of active/enabled paths. You can view real-time storage performance statistics directly within the vSphere Client. The datacenter view of DMP enables you to determine which storage arrays are attached to which ESX servers.
The device names are the same for DMP in the host and DMP in the guest (when using physical RDM). This feature allows easy end-to-end correlation from the guest to the ESXi host to the storage array, which reduces the chances of mis-configurations.
DMP enables the discovery of extended attributes from supported storage arrays. Some of these attributes include:
RAID levels
Device media types (SSD, SATA)
Array-based snapshots
Storage pool thin provision and reclamation capabilities
Array-based replication
With the information visible from DMP, you can provision and manage the storage effectively for applications. DMP helps you to perform the following tasks:
Provision storage with defined performance characteristics.
Locate applications on storage with proper attributes, service levels and other characteristics.
Identify storage bottlenecks and provide diagnostic information to resolve issues with application performance.
Migrate virtual machines between LUNs to achieve better performance or service levels using vMotion.
To achieve storage visibility using DMP, install DMP for VMware in the hypervisor.
See the Dynamic Multi-Pathing Installation Guide - VMware ESX.