InfoScale™ 9.0 Storage Foundation Cluster File System High Availability Configuration and Upgrade Guide - Solaris
- Section I. Introduction to SFCFSHA
- Introducing Storage Foundation Cluster File System High Availability
- Section II. Configuration of SFCFSHA
- Preparing to configure
- Preparing to configure SFCFSHA clusters for data integrity
- About planning to configure I/O fencing
- Setting up the CP server
- Configuring the CP server manually
- Configuring SFCFSHA
- Configuring a secure cluster node by node
- Verifying and updating licenses on the system
- Configuring SFCFSHA clusters for data integrity
- Setting up disk-based I/O fencing using installer
- Setting up server-based I/O fencing using installer
- Performing an automated SFCFSHA configuration using response files
- Performing an automated I/O fencing configuration using response files
- Configuring CP server using response files
- Manually configuring SFCFSHA clusters for data integrity
- Setting up disk-based I/O fencing manually
- Setting up server-based I/O fencing manually
- Configuring server-based fencing on the SFCFSHA cluster manually
- Setting up non-SCSI-3 fencing in virtual environments manually
- Setting up majority-based I/O fencing manually
- Section III. Upgrade of SFCFSHA
- Planning to upgrade SFCFSHA
- Preparing to upgrade SFCFSHA
- Performing a full upgrade of SFCFSHA using the installer
- Performing a rolling upgrade of SFCFSHA
- Performing a phased upgrade of SFCFSHA
- About phased upgrade
- Performing a phased upgrade using the product installer
- Performing an automated SFCFSHA upgrade using response files
- Upgrading Volume Replicator
- Upgrading VirtualStore
- Upgrading SFCFSHA using Boot Environment upgrade
- Performing post-upgrade tasks
- Planning to upgrade SFCFSHA
- Section IV. Post-configuration tasks
- Section V. Configuration of disaster recovery environments
- Section VI. Adding and removing nodes
- Adding a node to SFCFSHA clusters
- Adding the node to a cluster manually
- Setting up the node to run in secure mode
- Adding a node using response files
- Configuring server-based fencing on the new node
- Removing a node from SFCFSHA clusters
- Adding a node to SFCFSHA clusters
- Section VII. Configuration and Upgrade reference
- Appendix A. Installation scripts
- Appendix B. Configuration files
- Appendix C. Configuring the secure shell or the remote shell for communications
- Appendix D. High availability agent information
- Appendix E. Sample SFCFSHA cluster setup diagrams for CP server-based I/O fencing
- Appendix F. Reconciling major/minor numbers for NFS shared disks
- Appendix G. Configuring LLT over UDP
- Using the UDP layer for LLT
- Manually configuring LLT over UDP using IPv4
- Using the UDP layer of IPv6 for LLT
- Manually configuring LLT over UDP using IPv6
Planning an upgrade from the previous VVR version
If you plan to upgrade VVR from the previous VVR version, you can upgrade VVR with reduced application downtime by upgrading the hosts at separate times. While the Primary is being upgraded, the application can be migrated to the Secondary, thus reducing downtime. The replication between the (upgraded) Primary and the Secondary, which have different versions of VVR, will still continue. This feature facilitates high availability even when the VVR upgrade is not complete on both the sites. Veritas recommends that the Secondary hosts be upgraded before the Primary host in the Replicated Data Set (RDS).
For information regarding VVR support for replicating across Storage Foundation versions, refer to the Veritas InfoScale Release Notes.
Replicating between versions is intended to remove the restriction of upgrading the Primary and Secondary at the same time. VVR can continue to replicate an existing RDS with Replicated Volume Groups (RVGs) on the systems that you want to upgrade. When the Primary and Secondary are at different versions, VVR does not support changing the configuration with the vradmin command or creating a new RDS.
Also, if you specify TCP as the network protocol, the VVR versions on the Primary and Secondary determine whether the checksum is calculated. As shown in Table: VVR versions and checksum calculations, if either the Primary or Secondary are running a version of VVR prior to 9.0, and you use the TCP protocol, VVR calculates the checksum for every data packet it replicates. If the Primary and Secondary are at VVR 9.0, VVR does not calculate the checksum. Instead, it relies on the TCP checksum mechanism.
Table: VVR versions and checksum calculations
VVR prior to 9.0 (DG version <= 140) | VVR 9.0 (DG version >= 310) | VVR calculates checksum TCP connections? |
---|---|---|
Primary | Secondary | Yes |
Secondary | Primary | Yes |
Primary and Secondary | Yes | |
Primary and Secondary | No |
Note:
When replicating between versions of VVR, avoid using commands associated with new features. The earlier version may not support new features and problems could occur.
If you do not need to upgrade all the hosts in the RDS simultaneously, you can use replication between versions after you upgrade one host. You can then upgrade the other hosts in the RDS later at your convenience.
Note:
If you have a cluster setup, you must upgrade all the nodes in the cluster at the same time.