Hi, on out installation we sometimes see the following behavior:
One node says often: kernel: block drbd0: in e_end_block:1550: unacked_cnt = -1 < 0 ! Finally the other node says: block drbd0: peer( Secondary -> Unknown ) conn( Connected -> TearDown ) pdsk( UpToDate -> DUnknown ) The first node reestablishes the connection but finally says: kernel: block drbd0: 0 KB (0 bits) marked out-of-sync by on disk bit-map. then the second node says: kernel: block drbd0: BAD! BarrierAck and disconnects. the first node reconnects again and the game begins from the start. both nodes disconnect and connect again until eventually they end up disconnected. Out setup: Kernel 2.6.39.3 and self compiled drbd 8.3.11 Any ideas? Do we need to upgrade? To the latest 8.3 version, or to 8.4? Greetings, -- Dr. Michael Schwartzkopff Guardinistr. 63 81375 München Tel: (0163) 172 50 98 Fax: (089) 620 304 13
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