Gday Greg, On Tue, 20 Aug 2002 07:44, Greg Freemyer wrote: > Hello all, > > I'm new to LVM, but I want to be able to use the snapshot feature with a > XFS filesystem. > > I tried > > xfs_freeze -f > lvcreate --snapshot > xfs_freeze -u > > but it was not a reliable solution, and lvcreate would often lock up until > I executed a xfs_freeze -u on another ssh session. > > Adrian Head recommended I use the VFS-lock patch instead of xfs_freeze to > accomplish my goal of reliable snapshots. > > Since I'm new to LVM, I'm not sure what I need to do. > > I'm running SuSE 8.0 with there 2.4.18-231 kernel. This is based on the > 2.4.19pre1aa1 kernel with some extra patches. They also have a test kernel > based on 2.4.19aa1. First is to issue a "lvm version" and please let me know of the results. > Both have some level of LVM in them, but I don't know which specific > version. > > Would either of these have the VFS-lock patch already included, or do I > need to get the SRPM for one of the above, get the VFS-lock patch from > somewhere and apply the patch? Not sure - we'll have to work it out. The easiest way is to comment out the xfs_freeze above and still run the script - if you are able to mount the resulting snapshot then you most likely have the VFS-lock patch. > If so, where do I get the patch? From either the tarballs or from CVS. > Also, once I get an appropriate kernel, do I need to do anything to invoke > this feature prior to creating a snapshot, or is it automatic? The VFS-lock is automatic - it deals with the writing out of pending I/O before the snapshot is writen. > > > Greg Freemyer > Internet Engineer > Deployment and Integration Specialist > Compaq ASE - Tru64 v4, v5 > Compaq Master ASE - SAN Architect > The Norcross Group > www.NorcrossGroup.com > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html -- Adrian Head (Public Key available on request.) _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
