[OpenAFS] Re: Read-only replication
George Ross
gdmr@inf.ed.ac.uk
Fri, 18 Jun 2010 10:22:43 +0100
--==_Exmh_1276852962_8041P
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable
> > If you're only using volumes for home directories, or things like gro=
up
> > collaboration space, then RO volumes are not very useful to you.
>=20
> Actually, that's definitely not true in my experience. See below.
>=20
> > As you mentioned, they can also 'kinda' be used for backup purposes,
> =5B snip =5D
> > I definitely wouldn't recommend that for home dirs or anything like t=
hat,
> > though, since from the user's perspective it looks like their data ju=
st
> > suddenly went back in time by a day. Usually it's not much better tha=
n
> > just having real backups.
>=20
> I'd strongly recommend considering them for this use - alongside a real=
> backup solution.
> ...
In addition to all that Simon writes (=22fire=21=22), I'd also mention th=
at we=20
saw considerable support-cost savings when we introduced easy user-access=
=20
to their =22yesterday=22 filesystems. Our front-line support teams used =
to=20
field loads of =22oops, I just trashed this file, could you restore it fo=
r me=20
please?=22 calls. Now, provided the users realise what they've done, and=
=20
usually they do, they can restore things from the previous day's state=20
themselves.
--=20
Dr George D M Ross, School of Informatics, University of Edinburgh
10 Crichton Street, Edinburgh, Scotland, EH8 9AB
Mail: gdmr=40inf.ed.ac.uk Voice: +44 131 650 5147 Fax: +44 131 650 68=
99
PGP: 1024D/AD758CC5 B91E D430 1E0D 5883 EF6A 426C B676 5C2B AD75 8CC5
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
--==_Exmh_1276852962_8041P
Content-Type: application/pgp-signature
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
Comment: Exmh version 2.7.2 2005/01/04
iEYEARECAAYFAkwbOuIACgkQtnZcK611jMV9/ACeLHTnaXjQjbdlC1g/2h+UULeX
1B0AoIz8HpUNEWDzzFSwE+A0Nco9RGNa
=rXSO
-----END PGP SIGNATURE-----
--==_Exmh_1276852962_8041P--