At the end of Dedup Status thread is a cool little tidbit that I missed but it gives all us Home OpenSolaris users that can't afford expensive SSD's something to wait for, It is putback in b141, and as that the wait for the next OpenSolaris stable has put all /dev releases on hold we all get to wait, hopefully.. they jump a few releases when stable opensolaris is released so we don't have to wait 3 months to get this fix. There are bunch of other fixes that went into OpenSolaris /dev that the non hard core guys that don't build there own releaes have to wait to get as well.



George Wilson wrote:

I just integrated a performance improvement for dedup which will
dramatically help when the dedup table does not fit in memory. For more
details take a look at:

6938089 dedup-induced latency causes FC initiator logouts/FC port resets

This will improve performance for such tasks as rm-ing files in a dedup
enabled dataset, and destroying a dedup enabled dataset. It's still a
best practice to size your system accordingly such that the dedup table
can stay resident in the ARC or L2ARC.

- George