<P>
What can cause DRBD to enter and remain stuck in NetworkFailure state?<BR>
We're using 0.7.21 and kernel 2.6.10. There're a lot of error messages in syslog of the<BR>
Primary DRBD and finally got stuck in NetworkFailure state. All this<BR>
happened when FullSync started. Found that network link was okay.<BR>
Many messages in Primary syslog like these:<BR>
<BR>
kernel: drbd0: Primary/Unknown --> Primary/Secondary<BR>
kernel: drbd0: drbd0_receiver [3182]: cstate WFBitMapS --> SyncSource<BR>
kernel: drbd0: Resync started as SyncSource (need to sync 4848340 KB [1212085 bits set]).<BR>
kernel: drbd0: drivers/block/drbd/drbd_main.c:1095: SyncSource flags=0x2020a<BR>
kernel: drbd0: kjournald [3269]: cstate SyncSource --> NetworkFailure<BR>
<BR>
Another time found this,<BR>
<BR>
kernel: drbd0: pdflush [91]: cstate SyncSource --> NetworkFailure<BR>
kernel: drbd0: drbd_send_block() failed<BR>
kernel: drbd0: drbd0_receiver [3182]: cstate NetworkFailure --> BrokenPipe<BR>
<BR>
Observed this on the Secondary DRBD syslog sometimes when Primary was<BR>
going in to and coming out of NetworkFailure state:<BR>
kernel: drbd0: Avoided requeue of resync_work<BR>
<BR>
Can somebody tell me what can cause all this and what's the way out when DRBD gets stuck like this? Thanks.<BR>
<BR>
VG
</P>
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