Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Mon, Jan 04, 2010 at 11:10:42AM -0700, Josh Aune wrote: > > On Jan 4, 2010, at 4:47 AM, Lars Ellenberg wrote: > > >>>> > >>>> but during the initial sync after the DRBD device is created the sync > >>>> proceeds at less than 100 MB/s. Below is the config file. Am I > >>>> missing anything needed to bump up the initial sync speed? > >>>> > >>>> Also, all bytes on the drives on both side are zeros, so the limitation seems to be in the crc32c processing. > >>> > >>> Did you look at top, vmstat or similar? > >> > >> Yes, 87% cpu idle. Nothing much really happening. > > > > Then this seems to be some other config problem. > > > > <shameless plug> > > Did you know we sell "DRBD Health Checks"? > > http://www.linbit.com/en/products-services/drbd-consulting/ > > </shameless plug> > > To be clear, you have seen checksum based sync speeds in excess of 100 MB/s absolutely. > and I have a problem with my environment? most likely. though enabling checksum based resync does not make too much sense if network bandwidth is not your bottleneck. -- : Lars Ellenberg : LINBIT | Your Way to High Availability : DRBD/HA support and consulting http://www.linbit.com DRBD® and LINBIT® are registered trademarks of LINBIT, Austria. __ please don't Cc me, but send to list -- I'm subscribed