On 5/5/17 5:29 AM, Gionatan Danti wrote: > Hi all, I have a question about multiple mounts protection in XFS. > > On the iSCSI list, discussing how to avoid accidental multiple > mounts, I received the following advise: "Use XFS. XFS won't let you > mount it several time on different machines without various "force" > options." > > I just tried mounting an exported iSCSI disk formatted with XFS and I > *can* mount it concurrently on two different Linux boxes (both CentOS > 7.3 x86-64). > > I am missing something? Thanks. I guess this has been covered, but: no. There is no cross-machine multi-mount protection in XFS. Nothing like ext4's MMP. There is a unique UUID test at mount time, so you can't i.e. mount the same path twice /on the same box/, but there is no mechanism in XFS to prevent the same disk from being mounted by 2 /separate/ machines on a SAN. -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
