[OpenAFS] Howto speedup the restore of a crashed fileserver

Lars Schimmer l.schimmer@cgv.tugraz.at
Tue, 02 Oct 2007 09:58:13 +0200


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

chas williams - CONTRACTOR wrote:
> In message <87lkamg0ao.fsf@windlord.stanford.edu>,Russ Allbery writes:
>> If you've archived AFS via tar using admin credentials, I'm not sure
>> there's anything you can do that's faster than creating new volumes an=
d
>> untarring the contents into those volumes.  You can do that directly o=
n
>> the relevant file server to reduce your network latency a little.
>=20
> i would guess that vos restore restore from a file would be a bit faste=
r
> than using tar to copy in and out of the cache manager.  i dont have
> any timing to prove this one way or the other though.
>=20
> as for dumping, vol-dump seems pretty speedy but its got a few
> issues, as i recall:
>=20
> 	http://www.openafs.org/pipermail/openafs-devel/2004-July/010774.html

If locking is the problem, create a backup volume of the RW volume and
dump the backup volume. This way vos dump doesn't lock the RW volume.
Works fine here.

MfG,
Lars Schimmer
- --
- -------------------------------------------------------------
TU Graz, Institut f=FCr ComputerGraphik & WissensVisualisierung
Tel: +43 316 873-5405       E-Mail: l.schimmer@cgv.tugraz.at
Fax: +43 316 873-5402       PGP-Key-ID: 0x4A9B1723
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFHAfoVmWhuE0qbFyMRAmwMAJ41ulvOZYd43a+I5pGnMIL93X8sgwCeMvQx
FS2+z+gBXwHnW16ECj2NipE=3D
=3DOOY4
-----END PGP SIGNATURE-----