[DRBD-user] ETA of DRBD 0.7

Eugene Crosser crosser at rol.ru
Thu Apr 22 22:36:29 CEST 2004

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


On Thu, 2004-04-22 at 22:26, Lars Ellenberg wrote:

> > Jokes aside, syncer does not hang here any more (50% of 200Gb and
> > counting).  Did not check failver etc. yet.  But still sync speed as
> > reported by /proc/drbd is almost 5 times lower than it was with 0.6.12
> > (20 Mb/sec as opposed to 95).  And the size that it shows looks
> > strange...  Any ideas on that?
> 
> we still have a arbitray throttle in there, might be your problem.
> though I have seen more than 50M/sec in my UML test setup already...
> some latency issue, I guess.
> or the architectural change to timer based pull intead of push of the 
> synchronization data.  hm. tuning comes later...
> 
> /proc/drbd shows
> 56406M instead of "expected" 209146M
> 
> hm, well, it no longer shows the device size, but the size of the
> to-be-synced part of it. which does not need to be the same.
> 
> actually it should only be the same for the initial sync,
> and after drbdadm invalidate.

I did "invalidate" and now it correctly shows the full disk size, and
average rate of 40 Mb/sec.  Rate is still worse than with 0.6, but I
guess I can live with that...

Eugene




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