[Samba] Ceph samba size reporting troubles

[Michael Wood]

No problem. I am glad it worked :)

On 10/24/12, alphe salas michels <asalas at kepler.cl> wrote:
> Michael Wood,
> Thanks to your proposition I was able to intercept the size information
> sent to
> windows by samba using the dfree command and  have displayed the proper
> size.
> The only thing I did was adding
>
>
> dfree command = /usr/local/samba/bin/dfree
>
> and in the dfree script I put :
>
> df $1 | tail -1 | awk '{printf "%.0f %.0f",  $(NF-4),$(NF-2)}'
>
> And suddently windows was able to calculate the proper size of my ceph
> partition.
>
> Thank you again that helped me alot.
> signature
>
> *Alphé Salas*
> Ingeniero T.I
>
> Descripción: cid:image001.gif at 01CAA59C.F14CE4B0*Kepler Data Recovery*
>
> *Asturias 97, Las Condes**
> Santiago- Chile**
> *((*56 2) 362 7529*
>
> asalas at kepler.cl
> *www.kepler.cl <http://www.kepler.cl>*
>
> On 10/24/2012 11:45 AM, Michael Wood wrote:
>> Hi
>>
>> On 24 October 2012 16:41, alphe salas michels <asalas at kepler.cl> wrote:
>>> Thank you for your proposition!
>>>
>>> I tryed to lie about the block size,  but unfortunatly windows blocksize
>>> buffer is coded into 2 bytes (short int). so the size upper to that like
>>> Ceph that has 1MB of block size will not be handled the proper way.
>>>
>>> My guess (it is just an assuption) is that samba can detect who connects
>>> to it and if it is a true windows workstation /server then the samba
>>> lures the count by multiplying the amount of blocks by 1MB / (blocksize
>>> from 1K to 64K). In order to allow people to play with the samba "block
>>> size = " parameter in the smb.conf.
>> Well, my suggestion is just a guess.  Did you try supplying your own
>> script for the "dfree command"?
>>
>> I have not tried it myself.
>>
>>> Alphé Salas
>>> Ingeniero T.I
>>>
>>> Kepler Data Recovery
>>>
>>> Asturias 97, Las Condes
>>> Santiago- Chile
>>> ((56 2) 362 7529
>>>
>>> asalas at kepler.cl
>>> www.kepler.cl
>>>
>>> On 10/24/2012 11:26 AM, Michael Wood wrote:
>>>
>>> Hi
>>>
>>> On 24 October 2012 15:41, alphe salas michels <asalas at kepler.cl> wrote:
>>>> Dear developement team,
>>>>
>>>> I want to share a massive storage  casted with Ceph by samba with
>>>> windows
>>>> workstations.
>>>>
>>>> All works well. My problem so is that in windows the ceph storage size
>>>> statistics are wrong. Instead of seeing a 44TB hard drive I see a 176GB
>>>> hard
>>>> drive.
>>>>
>>>> Under linux that issue doesn't show. The size are properly reported.
>>>>
>>>> I investigated around and it seems that the problem belongs in the
>>>> unability
>>>> for windows
>>>> to treat blocksize over 65k and by default the block size is 4K.
>>>>
>>>> Don't know how you can solve that issue but I really need to get that
>>>> working right.
>>> I don't know if this will help, but it might be worth a try.  There's
>>> a "dfree command" option that specifies a command to run to get the
>>> free disk space:
>>>
>>> http://www.samba.org/samba/docs/man/manpages-3/smb.conf.5.html#DFREECOMMAND
>>>
>>> So if Windows doesn't like the block size, maybe you could lie about
>>> the block size and then calculate the number of blocks based on the
>>> fake block size.
>>>
>>> There's also a "max disk size" option that may or may not make any
>>> difference:
>>>
>>> http://www.samba.org/samba/docs/man/manpages-3/smb.conf.5.html#MAXDISKSIZE
>
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-- 
Michael Wood <esiotrot at gmail.com>