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Veritas InfoScale™ 7.4.1 Virtualization Guide - Linux on ESXi
Last Published:
2019-02-07
Product(s):
InfoScale & Storage Foundation (7.4.1)
Platform: Linux,VMware ESX
- Section I. Overview
- About Veritas InfoScale solutions in a VMware environment
- Section II. Deploying Veritas InfoScale products in a VMware environment
- Getting started
- Understanding Storage Configuration
- Section III. Use cases for Veritas InfoScale product components in a VMware environment
- 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 data protection, storage optimization, data migration, and database performance
- Protecting data with InfoScale product components in the VMware guest
- Optimizing storage with InfoScale product components in the VMware guest
- Migrating data with InfoScale product components in the VMware guest
- Improving database performance with 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
- Section IV. Reference
Low Impact Path Probing (LIPP)
The restore daemon in DMP keeps probing the LUN paths periodically. This behavior helps DMP to keep the path states up-to-date even when no I/O occurs on a path. Low Impact Path Probing adds logic to the restore daemon to optimize the number of the probes performed while the path status is being updated by the restore daemon. This optimization is achieved with the help of the logical subpaths failover groups. With LIPP logic in place, DMP probes only a limited number of paths within a subpaths failover group (SFG), instead of probing all the paths in an SFG. Based on these probe results, DMP determines the states of all the paths in that SFG.