Cluster Server 7.3.1 Configuration and Upgrade Guide - Solaris
- Section I. Configuring Cluster Server using the script-based installer
- I/O fencing requirements
- Preparing to configure VCS clusters for data integrity
- About planning to configure I/O fencing
- Setting up the CP server
- Configuring VCS
- Configuring a secure cluster node by node
- Verifying and updating licenses on the system
- Configuring VCS clusters for data integrity
- Setting up disk-based I/O fencing using installer
- Setting up server-based I/O fencing using installer
- Section II. Automated configuration using response files
- Performing an automated VCS configuration
- Performing an automated I/O fencing configuration using response files
- Section III. Manual configuration
- Manually configuring VCS
- Configuring LLT manually
- Configuring VCS manually
- Configuring VCS in single node mode
- Modifying the VCS configuration
- Manually configuring the 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 VCS cluster manually
- Setting up non-SCSI-3 fencing in virtual environments manually
- Setting up majority-based I/O fencing manually
- Manually configuring VCS
- Section IV. Upgrading VCS
- Planning to upgrade VCS
- Performing a VCS upgrade using the installer
- Tasks to perform after upgrading to 2048 bit key and SHA256 signature certificates
- Performing an online upgrade
- Performing a rolling upgrade of VCS
- Performing a phased upgrade of VCS
- About phased upgrade
- Performing a phased upgrade using the product installer
- Performing an automated VCS upgrade using response files
- Upgrading VCS using Live Upgrade and Boot Environment upgrade
- Planning to upgrade VCS
- Section V. Adding and removing cluster nodes
- Adding a node to a single-node cluster
- Adding a node to a single-node cluster
- Adding a node to a multi-node VCS cluster
- Manually adding a node to a cluster
- Setting up the node to run in secure mode
- Configuring I/O fencing on the new node
- Adding a node using response files
- Removing a node from a VCS cluster
- Removing a node from a VCS cluster
- Removing a node from a VCS cluster
- Adding a node to a single-node cluster
- Section VI. Installation reference
- Appendix A. Services and ports
- Appendix B. Configuration files
- Appendix C. Configuring LLT over UDP
- Using the UDP layer for LLT
- Manually configuring LLT over UDP using IPv4
- Manually configuring LLT over UDP using IPv6
- Appendix D. Configuring the secure shell or the remote shell for communications
- Appendix E. Installation script options
- Appendix F. Troubleshooting VCS configuration
- Appendix G. Sample VCS cluster setup diagrams for CP server-based I/O fencing
- Appendix H. Reconciling major/minor numbers for NFS shared disks
- Appendix I. Upgrading the Steward process
About rolling upgrade
Rolling upgrade minimizes downtime for highly available clusters to the amount of time that it takes to perform a service group failover. The rolling upgrade has two main phases where the installer upgrades kernel packages in phase 1 and VCS agent related packages in phase 2.
Note:
You need to perform a rolling upgrade on a completely configured cluster.
The following is an overview of the flow for a rolling upgrade:
1. | The installer performs prechecks on the cluster. |
2. | The installer moves service groups to free nodes for the first phase of the upgrade as is needed. Application downtime occurs during the first phase as the installer moves service groups to free nodes for the upgrade. The only downtime that is incurred is the normal time required for the service group to failover. The downtime is limited to the applications that are failed over and not the entire cluster. |
3. | The installer performs the second phase of the upgrade on all of the nodes in the cluster. The second phase of the upgrade includes downtime of the Cluster Server (VCS) engine HAD, but does not include application downtime. |
Figure: Example of the installer performing a rolling upgrade illustrates an example of the installer performing a rolling upgrade for three service groups on a two node cluster.
The following limitations apply to rolling upgrades:
Rolling upgrades are not compatible with phased upgrades. Do not mix rolling upgrades and phased upgrades.
You can perform a rolling upgrade from 6.0 and later versions.
The rolling upgrade procedures support only minor operating system upgrades.
The rolling upgrade procedure requires the product to be started before and after upgrade. If the current release does not support your current operating system version and the installed old release version does not support the operating system version that the current release supports, then rolling upgrade is not supported.