Support Policies for RHEL Resilient Storage Clusters - Resilient Storage on VMware
Contents
Overview
Applicable Environments
- Red Hat Enterprise Linux (RHEL) with the Resilient Storage Add-On
- VMware virtual machines
Useful References and Guides
- Support policies for RHEL Resilient Storage clusters
- Support Policies for RHEL High Availability Clusters - VMware Virtual Machines as Cluster Members
Introduction
This policy guide describes general requirements, limitations, and conditions for RHEL Resilient Storage components deployed on VMware virtual machines. Users of RHEL Resilient Storage technologies should adhere to these policies in order to be eligible for support from Red Hat with the appropriate product support subscriptions.
Policies
Cluster-shared-storage configurations: When utilizing shared storage for any managed use-case within the High Availability cluster, Red Hat expects that the following storage configurations should be compatible with clustering use-cases:
- Raw device mapping devices - using virtual or physical compatibility mode
- iSCSI LUNs initiated/accessed directly by VMs without any pass-through of the VMware layers
- Virtual disk file (VMDK) storage devices with the multi-writer flag enabled.
The optimal storage configuration may vary for each deployment. Organizations deploying RHEL High Availability clusters on VMware platforms and utilizing shared storage should consult with VMware and/or their storage solution vendor for guidance and recommended practices for designing a safe and effective storage layout to be used in a clustered environment.
See also:
- Support policies - Storage compatibility.
- Are VMware VMDK disk images a supported shared storage method in Red Hat Enterprise Linux High Availability Cluster?
- Content from kb.vmware.com is not included.Enabling or disabling simultaneous write protection provided by VMFS using the
multi-writer flag(1034165)
VMware Clustered VMDK: Using VMware Clustered VMDK is currently unsupported with pacemaker or its resource-agents.