I've written about my slow-to-dedupe RAIDZ. After a week of.....waiting....I finally bought a little $100 30G OCZ Vertex and plugged it in as a cache.
After <2 hours of warmup, my zfs send/receive rate on the pool is >16MB/sec (reading and writing each at 16MB as measured by zpool iostat). That's up from <3MB/sec, with a RAM-only cache on a 6GB machine. The SSD has about 8GB utilized right now, and the L2ARC benefit is amazing. Quite an amazing improvement for $100...recommend you don't dedupe without one. mike _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss