Problemas com drbd 0.7.14

Aki nas duas maquinas quando configuro o drbd + o heartbeat funcionão mas quando os servidores são incializados aparece a seguinte mensagem no log do messages:

Mar 10 16:47:24 aroeira kernel: drbd: initialised. Version: 0.7.14 (api:77/proto:74)
Mar 10 16:47:24 aroeira kernel: drbd: SVN Revision: 1989 build by [email protected], 2006-01-18 07:06:08
Mar 10 16:47:24 aroeira kernel: drbd: registered as block device major 147
Mar 10 16:47:28 aroeira S-1drbd: [
Mar 10 16:47:28 aroeira S-1drbd: d0
Mar 10 16:47:28 aroeira kernel: drbd0: resync bitmap: bits=12845056 words=200704
Mar 10 16:47:28 aroeira kernel: drbd0: size = 49 GB (51380224 KB)
Mar 10 16:47:29 aroeira kernel: drbd0: 823 MB marked out-of-sync by on disk bit-map.
Mar 10 16:47:29 aroeira kernel: drbd0: Found 6 transactions (324 active extents) in activity log.
Mar 10 16:47:29 aroeira kernel: drbd0: drbdsetup [1934]: cstate Unconfigured --> StandAlone
Mar 10 16:47:29 aroeira S-1drbd: s0
Mar 10 16:47:29 aroeira S-1drbd: n0
Mar 10 16:47:29 aroeira kernel: drbd0: drbdsetup [1947]: cstate StandAlone --> Unconnected
Mar 10 16:47:29 aroeira kernel: drbd0: drbd0_receiver [1948]: cstate Unconnected --> WFConnection
Mar 10 16:47:29 aroeira S-1drbd: ]
Mar 10 16:47:29 aroeira S-1drbd: .
Mar 10 16:47:29 aroeira S-1drbd: WARN: stdin/stdout is not a TTY; using /dev/console
Mar 10 16:47:41 aroeira S-1drbd:
Mar 10 16:47:41 aroeira rc: Iniciando drbd: succeeded
Mar 10 16:47:41 aroeira kernel: drbd0: Not in Primary state, no IO requests allowed
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845040
Mar 10 16:47:41 aroeira kernel: drbd0: Not in Primary state, no IO requests allowed
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845041
Mar 10 16:47:41 aroeira kernel: drbd0: Not in Primary state, no IO requests allowed
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845042
Mar 10 16:47:41 aroeira kernel: drbd0: Not in Primary state, no IO requests allowed
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845043
Mar 10 16:47:41 aroeira kernel: drbd0: Not in Primary state, no IO requests allowed
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845044
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845045
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845046
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845047
Mar 10 16:47:41 aroeira netfs: Montando outros sistemas de arquivos: succeeded
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845048
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845049
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845050
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845051
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845052
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845053
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845054
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845055
Mar 10 16:47:41 aroeira kernel: Buffer I/O error on device drbd0, logical block 12845040
Mar 10 16:47:41 aroeira autofs: automount startup succeeded
Mar 10 16:47:41 aroeira acpid: inÃcio de acpid succeeded
Mar 10 16:47:41 aroeira kernel: NET: Registered protocol family 10
Mar 10 16:47:41 aroeira kernel: Disabled Privacy Extensions on device ffffffff803fa08
Ai então peguei apenas uma maquina aki removi o heartbeat e o drbde e instalei o drbd + path dele para o kernel, e coloquei somente ela para funcionar e quando reicio a maquina a mesma mensagem aparece q e esta aki:
Buffer I/O error on device drbd0, logical block 12845048
Buffer I/O error on device drbd0, logical block 12845049
Buffer I/O error on device drbd0, logical block 12845050
Buffer I/O error on device drbd0, logical block 12845051
Buffer I/O error on device drbd0, logical block 12845052
Buffer I/O error on device drbd0, logical block 12845053
Buffer I/O error on device drbd0, logical block 12845054
Buffer I/O error on device drbd0, logical block 12845055
Buffer I/O error on device drbd0, logical block 12845040
Alguem poderia me ajudar a resolver este problema:
Desde ja agradeço ajuda, inclusive a ajuda do Marcos Pitanga que vem informando varias dicas.