[OpenIndiana-discuss] Hybrid disks in a raidz1 array??

[Bob Friesenhahn]

On Tue, 11 Feb 2014, Hans J. Albertsson wrote:

> How would hybrid SSD/HDD-s fare in a raidz1 array??
>
> I suppose for large sequential reads it wouldn't be much use, while for 
> random read/write cycles it might help?

The value would depend entirely on how much RAM (and L2ARC) a system 
has.  If the zfs ARC is large enough, the cache on the drive would not 
help much.  If the system is rebooted often, then there could be some 
benefit since the drive cache is non-volatile.

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/