InfoScale™ 9.0 Virtualization Guide - Linux on ESXi
- Section I. Overview
- Section II. Deploying Veritas InfoScale products in a VMware environment
- Getting started
- Understanding Storage Configuration
- 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
- Protecting data with InfoScale™ product components in the VMware guest
- Optimizing storage with InfoScale™ product components in the VMware guest
- About Flexible Storage Sharing
- 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 setting up InfoScale Enterprise on VMware ESXi
- Section IV. Reference
Limitations of Flexible Storage Sharing
Note the following limitations for using Flexible Storage Sharing (FSS):
Disk initialization operations should be performed only on nodes with local connectivity to the disk.
FSS does not support the use of boot disks, opaque disks, and non-VxVM disks for network sharing.
Hot-relocation is disabled on FSS disk groups.
FSS does not support non-SCSI3 disks connected to multiple hosts.
FSS supports only those instant data change objects (DCOs) that are either created using the vxsnap operation or by specifying the logtype=dco and dcoversion=20 attributes during volume creation.
By default, creating a mirror between SSD and HDD is not supported through vxassist, as the underlying media types are different. To workaround this issue, you can create a volume with one media type, for instance the HDD, which is the default media type, and then later add a mirror on the SSD.
For example:
# vxassist -g diskgroup make volume size init=none
# vxassist -g diskgroup mirror volume mediatype:ssd
# vxvol -g diskgroup init active volume