On Tue, Jul 28, 2015 at 8:16 PM, james harvey <jamespharvey20@xxxxxxxxx> wrote: > Doing some fast-paced benchmarking of lots of raid levels, some in a > kvm, some via RDMA access over InfiniBand using different procotols, > etc. > > Was shocked to see horrible raid0 performance in one of the tests. > Looked back through the logs and found: > > (Note that I typo'ed -d raid**e**0 > > ===== > $ sudo mkfs.btrfs -f -m raid0 -d raide0 /dev/vda2 /dev/vdb1 /dev/vdc1 > Unknown profile raide0 For raid0, at least going to single is a lower risk of data loss. But what if the user specified raid1 but instead single and hence higher risk of data loss? Probably better to fail the command than ignore -d switch and continue. -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
