Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 08/22/2011 11:11 AM, Lyre wrote: > Hi all: > > After manual manually recovery from split-brain, I noticed the syncer > rate was limited to 250kb/s (cat /proc/drbd) , which was default value > of drbd . However, It was configured to 10M, drbdadm can confirm this. > After running drbdadm adjust drbd0, the syncer rate was correct. What's > the problem with it? > > I'm using drbd0 8.3.11 on SLES 11 SP1 x86_64, kernel 126.96.36.199-0.7, and > I compiled the rpm packages myself. There is no problem. The default sync rate is set to be low so that background sync doesn't interfere with "real" traffic. If you want to change the default, look at 'syncer' in the drbd.conf man page. Keep in mind, setting a sync rate too high will hurt performance and can stall the sync all together. It is advised that you run benchmarks (ie: bonnie++) to find out what the maximum *practical* disk I/O is and then set 'syncer' to no more than 30% of that speed. -- Digimer E-Mail: digimer at alteeve.com Freenode handle: digimer Papers and Projects: http://alteeve.com Node Assassin: http://nodeassassin.org "At what point did we forget that the Space Shuttle was, essentially, a program that strapped human beings to an explosion and tried to stab through the sky with fire and math?"