LDoms versions & compatibility
By Eric S on Dec 02, 2007
WARNING: There are two important caveats when upgrading from LDoms 1.0 to LDoms 1.0.1:
- Configurations saved to the service processor under 1.0 are not usable under 1.0.1. The LDoms 1.0.1 Administration Guide describes the upgrade procedure that needs to be applied to work around this. Part of this procedure needs to be carried out BEFORE performing the actual upgrade!
- You must upgrade both the firmware and LDom Manager components at the same time.
One of the pillars of Sun's products is our ability to maintain compatibility; we have explicit practices & processes in place to guarantee compatibility between product releases. Unfortunately, we did not apply those to the 1.0.1 LDoms upgrade. This was an omission we do not intend to repeat. So, when upgrading from LDoms 1.0 to any subsequent version, the caveats mentioned above do apply (the current LDoms release is still 1.0.1, but we are planning for two follow-on releases in CY 2008).
As we wrap up the development phase of our upcoming 1.0.2 release, we're re-verifying that existing configurations created under 1.0.1 do continue to work under 1.0.2, and that firmware & LDom Manager upgrades do not need to be synchronized. Of course, certain 1.0.2 capabilities might not be fully enabled until both the firmware & the LDom Manager are upgraded, but at least the system will continue to function with only one or the other upgraded.
UPDATE 4/29/2008: With the release of LDoms 1.0.2, I'm happy to report that neither of the caveats described in this entry apply when upgrading from LDoms 1.0.1 to LDoms 1.0.2. However, they do still apply if you're upgrading from LDoms 1.0 to LDoms 1.0.2 (or any subsequent release). In other words, these compatibility issues only come into play when upgrading from LDoms 1.0 to a subsequent release.