[Samba] Zero-blocks in large files (smb in libvirt/kvm RHEL)
Jeremy Allison
jra at samba.org
Tue Jun 2 15:03:39 MDT 2015
On Tue, Jun 02, 2015 at 09:02:53AM +0200, Peter B. wrote:
> On 06/01/2015 10:41 PM, Jeremy Allison wrote:
> > What would be helpful is discovering if this is a client or
> > server bug. Do you get issues when running rsync on a Windows
> > client against the same Samba share ?
>
> It's number 1 on my todo-list to find that out.
> What I can say so far is, that the Debian 6 client was using the exact
> same way/versions/tools for years to write to a Windows server storage
> before - without problems.
>
> Now the Windows server was replaced by RHEL+Samba.
>
> It's tricky to triage it, since the zeroblock-issue only appears
> "sometimes"...
>
> I've noticed that the Samba logfiles on the RHEL server are mostly empty
> (even smbd.log). Where can I configure the logging to see if there's
> something happening?
You can up the log level in smb.conf, but I really
doubt you'll see anything there. It's not like
we checksum the date coming/going from write/read.
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