OpenSolaris

1. Community: ZFS
   1. What is ZFS?
   2. Getting Started
   3. ZFS FAQ
   4. Discussions
   5. Source Tour
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      1. ZFS Basics
      2. ZFS Self Healing
   8. Porting ZFS
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   11. ZTEST
   12. ZFS Boot
       1. ZFS Boot Project FAQ
   13. Data Structures
   14. ZFS Test Suite
   15. Leaders
   16. Translations
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ZFS Pool Version 10

This page describes the feature that is available with the ZFS on-disk format, version 10. This version includes support for the following feature:

• Devices can be added to a storage pool as "cache devices." These devices provide an additional layer of caching between main memory and disk. Using cache devices provides the greatest performance improvement for random read-workloads of mostly static content.

This feature is available in the Solaris Express Community Edition, build 78.

The Solaris 10 10/08 release includes ZFS pool version 10, but support for cache devices is not included in this Solaris release.

The related bug for the version 10 change is:

• 6536054 second tier ("external") ARC