This blog post presents the detailed procedure for upgrading Veritas Volume Manager (VxVM) and/or Solaris using Live Upgrade. Gerry Haskins explains that Solaris Live Upgrade is the feature that performs an operating system upgrade with no downtime. The upgrade is done on an alternate disk using the current boot environment (BE). After the Live Upgrade, the alternate disk has all the information from the current BE and just one reboot will bring the system up on the alternate disk with the upgraded Solaris Version.
Volume Manager uses Solaris Live Upgrade to upgrade VxVM software in a live environment and provides the following advantages:
- Less system downtime, just one reboot will bring the system up and running on the new Solaris version
- Users can revert to the previous OS version at any time
- Alternate root disk partitions can be resized to grow or shrink
- If users do not upgrade the disk group version on the alternate boot environment, they can create more than one boot environment with different versions of VxVM/Solaris and easily switch between them with just one reboot
Haskins adds that VxVM Live Upgrade requires an alternate disk to upgrade. This disk can be a mirrored root disk or an independent unused disk which supports booting. VxVM Live Upgrade is mainly done using the Solaris Live Upgrade commands.
The steps that Haskins outlines in his how-to include:
- Upgrading VxVM or Solaris OS or Both Using Live Upgrade
- Installing Live Upgrade on the current root disk
- VxVM Live Upgrade commands and usage
- Beginning the Live Upgrade
- Upgrading Solaris from the software discs
- Upgrading Solaris from network directory path
- Completing the Solaris upgrade
- Upgrading VxVM
- Upgrading VEA Windows Client Package
More Information
Upgrading VxVM and/or Solaris using Live Upgrade
Veritas now supports Solaris Live Upgrade
Solaris Live Upgrade
Prescription: Solaris Feature, Live Upgrade
Reducing Downtime on Updates of the Solaris OS
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