Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 31.07.2012 12:14, David Coulson wrote: > Does it matter? Your data is accessible from both nodes while it syncs. > > I suppose you have a risk of the primary failing until it has a full > copy on the other node, but since it is a one time, on build, thing it > isn't a big deal. > > Short answer is bigger pipe, faster drives, plenty of cpu. And more > pipe. And make sure your configured syncer rate is enough to fully > utilize your connectivity between nodes. To add one thing here: DRBD should stop using very slow 4 KiB IO requests for syncer stuff. You can see that with blktrace/blkparse. Full-size 512 KiB IO requests should be used instead. Only fools add hardware to fix a software issue. I've analyzed the DRBD kernel code recently for a customer: http://www.gossamer-threads.com/lists/drbd/users/24104 Btw.: The default syncer rate limit of 10 MB/s is also quite outdated. Cheers, Sebastian