Hi folks, Myself and a colleague are currently involved in a prototyping exercise to evaluate ZFS against our current filesystem. We are looking at the best way to arrange the disks in a 3510 storage array.
We have been testing with the 12 disks on the 3510 exported as "nraid" logical devices. We then configured a single ZFS pool on top of this, using two raid-z arrays. We are getting some OK numbers this way, but it seems a waste of the resources on the 3510 if we are handing everything back to the OS to handle, although I recall reading somewhere that letting ZFS handle all this jiggery-pokery was the best way to do things. I guess our question is, being new to ZFS in general and looking to optimise the kind of numbers we are getting out in terms of performance, as well as configuring a setup that will survive a disk failure, is this a sensible way of configuring a 3510 for maximum throughput and redundancy? With our current filesystem, we create two 5-disk RAID5 arrays and export these as two logical devices, with two spare disks. In a ZFS scenario, is it worth us letting the 3510 do RAID5 in the way we currently do, or should we let ZFS manage all the RAID using raid-z and treat the 3510 as 12 discrete devices? What about spare disks in a ZFS pool? Any advice is greatly appreciated. Thanks and regards, Ciaran. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
