Veritas InfoScale™ 8.0.2 Virtualization Guide - Linux on ESXi
- Section I. Overview
 - Section II. Deploying Veritas InfoScale products in a VMware environment
- Getting started
- Storage configurations and feature compatibility
 - About setting up VMware with InfoScale products
 - InfoScale products support for VMware environments
 - Installing and configuring storage solutions in the VMware virtual environment
 - Recommendations for improved resiliency of InfoScale clusters in virtualized environments
 
 - Understanding Storage Configuration
- Configuring storage
 - Enabling disk UUID on virtual machines
 - Installing Array Support Library (ASL) for VMDK on cluster nodes
 - Excluding the boot disk from the Volume Manager configuration
 - Creating the VMDK files
 - Mapping the VMDKs to each virtual machine (VM)
 - Enabling the multi-write flag
 - Getting consistent names across nodes
 - Creating a file system
 
 
 - Getting started
 - Section III. Use cases for Veritas InfoScale product components in a VMware environment
- Application availability using Cluster Server
 - Multi-tier business service support
 - Improving data protection, storage optimization, data migration, and database performance
- Use cases for InfoScale product components in a VMware guest
 - Protecting data with InfoScale product components in the VMware guest
 - Optimizing storage with InfoScale product components in the VMware guest
- About SmartTier in the VMware environment
 - About compression with InfoScale product components in the VMware guest
 - About thin reclamation with InfoScale product components in the VMware guest
 - About SmartMove with InfoScale product components in the VMware guest
 - About SmartTier for Oracle 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 InfoScale Enterprise on VMware disks
- About use cases for InfoScale Enterprise in the VMware guest
 - InfoScale Enterprise operation in VMware virtualized environments
 - InfoScale functionality and compatibility matrix
 - About setting up InfoScale Enterprise on VMware ESXi
 
 
 - Section IV. Reference
 
Enabling the multi-write flag
Enable the multi-write flag if you plan to setup an InfoScale Enterprise configuration. For detailed instructions on how to enable the multi-writer flag, see the steps in the following VMware article:
http://kb.vmware.com/kb/1034165
The steps given below illustrate the example where five VMDK files are configured and are shared by four virtual machines (VMs). These VMs constitute the four nodes of the cluster and they are powered off. Now it is time to enable the multi-writer flag for each of the VMs.
To enable the multi-write flag for a virtual machine
- On the vSphere Client, right-click on the cfs01 virtual machine. Go to Edit Settings > Advanced Parameters.
 - .Enter scsi1:0.sharing in the Attribute column.
 - Enter multi-writer in the Value column.
 - Repeat steps 2 through 4 and enter the multi-writer value for the rest of the SCSI controllers and targets. For the example configuration:
scsi1:1.sharing multi-writer scsi1:2.sharing multi-writer scsi1:3.sharing multi-writer scsi1:4.sharing multi-writer
Once those steps are done, the VM configuration will resemble:
disk.EnableUUID
true
scsi1:0.sharing
multi-writer
scsi1:1.sharing
multi-writer
scsi1:2.sharing
multi-writer
scsi1:3.sharing
multi-writer
scsi1:4.sharing
multi-writer
 - Press OK to confirm.
 - Repeat steps 1 to 6 for the other virtual machines (cfs02, cfs03 and cfs04 in the example configuration).
 - Once all the virtual machines have been configured correctly, power them on and verify that there are no issues. Note that the disks have been added to each of the hosts.
Example configuration for cfs01:
# vxdisk list DEVICE TYPE DISK GROUP STATUS vmdk0_0 auto:none - - online invalid vmdk0_1 auto:none - - online invalid vmdk0_2 auto:none - - online invalid vmdk0_3 auto:none - - online invalid vmdk0_4 auto:none - - online invalid vmdk0_5 auto:none - - online invalid [root@cfs01 ~]#