Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Greg Freemyer wrote: > I have not been following this thread very closely, but I think one of > the major issues is that the LVM VFS-lock patch does not work if drbd is > layered above lvm. > > If this is the only issue, then maybe xfs_freeze can be used as a work > around. (It can be used in the absense of the vfs-lock patch.) > > With a kernel lacking the vfs-lock patch, the following does work on a > single node setup: > > xfs_freeze -f /dev/... // Cause XFS to prepare for a snapshot > create snapshot > xfs_freeze -u /dev/... // Allow XFS to continue handling i/o Can you verify this, i.e. production use experiences? That could be a possible way to go, maybe. Wonder what Lars would say ... > > I don't know if any of the other filesystems over a userspace took to > invoke freeze/unfreeze. I don't know, but i think that's a unique feature of XFS (under Linux). > > HTH > Greg -- Best regards, Andreas Semt