[Samba] {Device Timeout} The I/O operation specified in %hs was not completed before the timeout period expired

[Rowland Penny]

On Wed, 3 Jan 2024 11:41:04 -0300
Elias Pereira via samba <samba at lists.samba.org> wrote:

> hi,
> 
> After a "samba-tool drs showrepl" I saw that there had been an error
> in the replication of ForestDnsZones.
> 
> I ran a "samba-tool drs replicate dc2 dc3
> DC=ForestDnsZones,DC=campus,DC=sertao,DC=ifrs,DC=edu,DC=br -d10" and
> the error below occurred.
> 
> ERROR(<class 'samba.drs_utils.drsException'>): DsReplicaSync failed -
> drsException: DsReplicaSync failed (3221225653, '{Device Timeout} The
> specified I/O operation on %hs was not completed before the time-out
> period expired.')
>   File "/usr/lib/python3/dist-packages/samba/netcmd/drs.py", line
> 567, in run
>     drs_utils.sendDsReplicaSync(server_bind, server_bind_handle,
> source_dsa_guid, NC, req_options)
>   File "/usr/lib/python3/dist-packages/samba/drs_utils.py", line 100,
> in sendDsReplicaSync
>     raise drsException("DsReplicaSync failed %s" % estr)
> 
> Full -d10 on pastebin below
> https://pastebin.com/raw/ihUSBN93
> 
> What does this "{Device Timeout} The I/O operation specified in %hs
> was not completed before the timeout period expired." mean?
> 

It looks like there are connection problems between dc2 and dc3. Is
dns configured correctly ? Is a firewall running and if so, are all the
required ports open ?

Rowland