[OpenAFS] Server connection speed differences
Derrick J Brashear
shadow@dementia.org
Sun, 5 Nov 2006 19:20:22 -0500 (EST)
On Sun, 5 Nov 2006, Mr Budzynowski wrote:
>
>
> How and when does the cache manager assign ranks to file servers?
Based on classful subnetting (regardless of whether you use it) when it
encounters them.
> Specifically, does it take the connection speed into account?
No.
> For instance, if an afs cell were to be split across two sites and
> connected via the internet (by a VPN, say), would clients preferentially
> take volumes from servers on the local network because their files can
> be retrieved faster?
No. It should but does not currently do so.
> I guess what I'm really asking is whether, if some servers are
> connected via a slower line but still fully functional, one would need
> to make manual adjustments to the rankings
Yes.
> On a related note, when a RW volume is released, can the RO copies get
> it off each other? (For instance, RW copy at one site and two RO copies
No.
Derrick