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OCA Oracle Solaris 11 System Administration Exam Guide (Exam 1Z0-821) by Michael Ernest

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Managing Boot Environments (BEs)

Solaris 11 has a new default root file system called ZFS. The ZFS file system first appeared in Solaris 10 Update 2, which was released in June 2006. In Solaris 10 Update 6, released in October 2008, it became an option for the root file system. Now it is the default (and only) choice.

It may sound like a step back to have fewer options than more, but ZFS is really more than just a file system. I have more to say about that in Chapter 4. As an integral part of the operating system, it supports other bedrock features that would be hard-pressed to work, or work as well, without it. Support for boot environments (BEs) is one of them.

The concept behind boot environments began with a product called Live Upgrade. Live ...

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