BigIP 10.2.2 HF3 config sync problem

After a few more investigation, i found those logs in the remote peer :

local/lb-opamgt err statsd[3767]: 011b0600:3: Error 'opening '/var/rrd/connections': Read-only file system' during rrd_update for rrd file '/var/rrd/connections'

It match this issue : http://support.f5.com/kb/en-us/solutions/public/12000/700/sol12780.html

I'm still waiting for f5 support answer to plan an intervention on the remote peer.