What’s New in OpenSolaris 2010.03 (DRAFT)
OpenSolaris 2010.03 is the latest release of the OpenSolaris Operating System, a powerful and complete operating environment for users. developers and deployers. OpenSolaris prides itself on being a secure, stable, and highly scalable system. The OpenSolaris OS is open source software and freely re-distributable, and provides all the tools users expect from a modern computing environment. Additional software can easily be installed from online network package repositories.
OpenSolaris 2010.03 is available in many forms – from a Live CD for x86/x64 to a hands off Automated Install for SPARC and x86/x64.
2. What’s new for administrators
Oracle Solaris 10 Containers
Oracle Solaris 10 Containers are branded zones that host Oracle Solaris 10 10/09 and later user environments. They provide a method for seamlessly migrating Oracle Solaris workloads where the zone is running on OpenSolaris.
The “solaris10” branded zone is a complete runtime environment for Oracle Solaris 10 applications. The brand is supported on all sun4v, sun4u, and x86 architecture machines where OpenSolaris is supported.
The brand includes the tools required to install a Oracle Solaris 10 system image into a non-global zone. A physical-to-virtual (P2V) capability is used to directly migrate an existing Oracle Solaris 10 system into a non-global zone on a target system. The brand also supports the tools used to migrate an existing Oracle Solaris 10 native zone to a solaris10 non-global zone.
Triple-Parity RAID with ZFS
The need for triple-parity RAID has increased as the disparity between disk capacity and throughput grows. As disks in RAID systems take longer to reconstruct (also known as resilver), the reliability of the total system decreases due to increased periods running in a degraded state should any failures occur. OpenSolaris 2010.03 includes triple-parity RAID in ZFS, meeting the needs of a highly-available storage environment. For more detail, see Adam Leventhal’s blog.
ZFS now includes the ability to split an existing zpool. Administrators can now extract one disk from each mirrored top-level vdev and use them to create a new pool with an exact copy of the data. The new pool can then be imported on any machine that supports the pool’s version.
Save space with ZFS
Deduplication is a feature of modern storage platforms by which varying mechanisms are employed to reduce the amount of total data stored by eliminating and sharing common components. ZFS deduplication support has been added for OpenSolaris 2010.03. ZFS deduplication uses checksum based comparison of blocks with optional verification (for example with non-cryptographically secure checksums). Deduplication is performed across the entire ZFS storage pool; administrators can select if individual datasets have deduplication enabled or not. This is useful in mixed-mode environments in which some datasets have highly duplicated data (e.g. virtualized images, home directories, or email folders) and others are unique (e.g. databases).