Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 08/14/2012 02:43 AM, Dennis Jacobfeuerborn wrote: > On 08/03/2012 03:27 AM, Dennis Jacobfeuerborn wrote: >> Hi, >> I just set up a traditional drbd primary/secondary system between two hosts >> that are connected with gigabit ports. The problem is that the resync rate >> is only 5M even though in the config file I set it to 40M. >> >> I also tried: >> drbdadm disk-options --resync-rate=40M drbd1 >> >> which doesn't result in an error but apparently doesn't get applied either. >> I also tried 1M but that gets ignored too. >> >> Any idea what might be going on here? >> (This is drbd 8.4.1 on a Centos 6.3 system) > > Does nobody have any idea? > I just had to re-sync and the "want" value jumped around wildly between 0 > K/sec and 80.000 K/sec and the speed it self is terrible: > > finish: 0:05:07 speed: 608 (628) want: 7,160 K/sec > finish: 0:04:33 speed: 684 (628) want: 43,760 K/sec > finish: 0:04:38 speed: 680 (628) want: 9,600 K/sec > finish: 0:05:04 speed: 624 (628) want: 0 K/sec > finish: 0:04:51 speed: 648 (628) want: 10,760 K/sec > > It looks like the variable sync mechanism does more harm than good and I > don't seem to be able to turn it off properly. Downgrading to DRBD 8.3 fixed this problem so this seems to be an issue with 8.4.1. Regards, Dennis