[DRBD-user] rate limit is 700M?

Stephan Rattai srattai at zmnh.uni-hamburg.de
Tue Feb 14 13:56:13 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.


Sure, 250 M is nonsense, I was just was just thinking about a 2 Gb fc 
interface I've been messing around with. Dividing 2000 by 8 is not quite 
correct, just a bad habit. Anyway this seems not as important to me as these 
are values I've never seen in reality. 

Am Dienstag, 14. Februar 2006 12:41 schrieb Saul, Markus:
> -----Ursprüngliche Nachricht-----
>
> >Von: drbd-user-bounces at lists.linbit.com
> > [mailto:drbd-user-bounces at lists.linbit.com] Im Auftrag von Stephan Rattai
> > Gesendet: Dienstag, 14. Februar 2006 12:23
> >An: drbd-user at linbit.com
> >Betreff: Re: [DRBD-user] rate limit is 700M?
> >
> >Hi there,
> >
> >there is a limit of 700000 defined in user/drbd_limits.h, anyway I don't
> > know why the 'G' is offered. Be that as it may, the unit for the rate is
> > byte not bit so you won't get more than 250M rate over your Gbit
> > interface anyway (and even 250M is hardly believable...).
>
> I'm interested in how you got to the value 250M?
> If the unit is meant to be MBytes/s (or MiBytes),... it would mean that the
> base is 2, this gives you speeds of  2^x like 1024 MBytes/s, this divided
> by 8 gives 128M.
>
>
> What's the official speed declaration anyone? I also read that for speeds
> "bit/s" is used (instead of the byte usage like in drbd.conf), but the
> writing of those units differs also: "gbit/s" in a time/speed context and
> without the time context "Gbit"?
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