Trond Myklebust wrote: >> >> I assume NetApp flags the directory specially so that a POSIX directory >> read doesn't get it. I've seen that done elsewhere. > > No. The directory is quite visible with a standard 'ls -a'. Instead, > they simply mark it as a separate volume/filesystem: i.e. the fsid > differs when you call stat(). The whole thing ends up acting rather like > our bind mounts. > It means that you avoid all those nasty user issues where people try to > hard link to/from .snapshot directories, rename files across snapshot > boundaries, etc. > Last I used a Netapp, it was configurable, I believe; I seem to also vaguely remember that one could configure it so that it only was accessible as part of a mount string rather than as part of an already-mounted filesystem. Of course, this was a long time ago. -hpa - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
