On Mon, Aug 07, 2006 at 08:57:13PM +0100, Nix wrote: > On 5 Aug 2006, David Greaves prattled cheerily: > > As an example of the cons: I've just set up lvm2 over my raid5 and whilst > > testing snapshots, the first thing that happened was a kernel BUG and an oops... > > I've been backing up using writable snapshots on LVM2 over RAID-5 for > some time. No BUGs. Just performed some basic throughput tests using 4 SATA disks in a raid5 array. The read performance on the /dev/mdx device runs around 180mbps but if lvm is layered over that, reads on the lv are around 130mbps. Not an unsubstantial reduction. I seem to recall patches to md floating around a couple years back for partitioning of md devices. Are those still available somewhere? S -- http://www.cm.nu/~shane/ - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
