On Tue, Nov 5, 2019 at 2:21 PM Janne Johansson <icepic.dz@xxxxxxxxx> wrote: > I seem to recall some ticket where zap would "only" clear 100M of the drive, but lvm and all partition info needed more to be cleared, so using dd .... bs=1M count=1024 (or more!) would be needed to make sure no part of the OS picks up anything from the previous contents. Based on the output, it seems like it is systematically destroying the LVM stuff and partitions, not just doing the dd. So far, we've converted ~80 OSDs with no real issues other than the occasional surprise udev remounts. Thanks! _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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