Keith Clay writes: > > On Sep 29, 2006, at 2:41 AM, Roch wrote: > > > >> > > > > IMO, RAIDZn should perform admirably on the write loads. > > The random reads aspects is more limited. The simple rule of > > thumb is to consider that a RAIDZ group will deliver random > > read IOPS with the performance characteristic of single > > device. That rule does not apply to either read or write > > streaming data but only for small random reads pattern. > > > > If that means you need to construct small RAIDZ groups > > then do consider mirroring as an alternative. > > > > So, mirroring, on jbods would give me the same/better performance > than raidzn? Would that apply to fc drives or also to SATA? >
On small random read loads ? It's much better to use mirroring and that's Independant on device type. > keith _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
