From Oracle Documentation

About Backing Up a Solaris System With Zones Installed

Determining What to Back Up in Non-Global Zones

About Restoring Non-Global Zones

Upgrading the Solaris OS on a System With Non-Global Zones Installed

---

From Oracle Wikis

Zone Cluster: How to Deploy Virtual Clusters and Why

Guidelines for Using Solaris Live Upgrade With Solaris Zones

How to Upgrade the Solaris 10 OS With Non-global Zones Using Solaris Live Upgrade

---

Bloggers:

The Clingan Zone Rolling back a zone to a known state

Mark Huff's Weblog, The Solaris Zone Live Upgrade with Solaris Volume Manager (SVM) and Zones

Mark Huff's Weblog, The Solaris Zone Patching with Solaris Live Upgrade

Mark Huff's Weblog, The Solaris Zone The Live Upgrade Experience

Patch Corner Using Solaris Live Upgrade for patching

Dirk Wriedt's Blog, What moves me A short look at Live Upgrade

Fore! Upgrades with zones, finally

---

Other:

From the Solaris Internals Zone Best Practices Swiki, Zone Backups

Using ZFS for Zone Backups or Snapshots