On Wed, Jun 8, 2016 at 2:43 PM, Dan Ritter <d...@randomstring.org> wrote: > On Wed, Jun 08, 2016 at 01:54:36PM -0400, Bill Bogstad wrote: >> As for documentation/query tools for multiple families of filesystems, >> I don't recall seeing anything. > > It doesn't exist. I do not think it would be reasonable to have it exist. > > btrfs RAID1 does not mean the same thing as LVM RAID1 or mdadm RAID1, and > a flag on a filesystem can't tell you that it's stored on hardware RAID1. >[lots more examples of filesystem differences]
I understand the difficulty of this; but when it comes to program visible differences (ownership models, ACLs, attributes, etc.), I find it frustrating that even there there isn't as much as I think there should be. There seems to be little coordination between developers of filesystems and of backup software. I am never sure if I can backup and restore the more advanced semantics of modern filesystems. As a result, my tendency is to stick to the 1980s POSIX model. Admittedly my recent experience is 100% Linux, are things any better in the *BSD or Solaris world? i.e. Do filesystem developers "bless" backup software as being 100% able to backup/restore all of the features they implement? Bill Bogstad _______________________________________________ Tech mailing list Tech@lists.lopsa.org https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
