[DRBD-user] drbd solution for distant sites ? (4MB line)

Philipp Reisner philipp.reisner at linbit.com
Fri Feb 24 09:37:26 CET 2006

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


[...]
> > > the link will be a vpn connection up to 2 or 4 MB :(
> > > I've made some computes and as there is some 400 GB to synchronize, it
> > > takes minimum 18 days to make the first sync if we stay in 2MB :(
[...]
> >
> > 1. Setup DRBD to sync locally and do your initial sync.
[...]
>
> well. there indeed is, in this case, a reason to try and use A,
> which is intended to be used on high latency links.

I wanted to second that protocol A is only there for these high-latency-link
cases like this one. [But you should understand the "risks" of protocol A]

For such a setup with limited bandwith link increasing the sndbuf-size 
improves the "interactiveness" of writes on the primary node.

PS: Please report your experiences afterwards, Thanks!

-Philipp
-- 
: Dipl-Ing Philipp Reisner                      Tel +43-1-8178292-50 :
: LINBIT Information Technologies GmbH          Fax +43-1-8178292-82 :
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