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
on 2009/11/02 23:33