samba - Oct 2008 - Samba 3.x reports "not implemented" when Server 2008 SMB client requests FSCTL_GET_OBJECT_ID

Hi Samba list,

I ran across this really bizarre issue and was hoping somebody would
be able to shed some further light on the issue.

If this is better directed to the samba technical list, please let me
know and I will post there instead.

Background
========
I'm using CommVault Galaxy 7.0 SP4 for backup and decided to share
it's "IndexCache", which is a collection of files & folders,
on a UNC
share from our SuSE Linux server.

However, during file I/O a call to Samba to request the
FSCTL_GET_OBJECT_ID fails which causes CV to fail.    We are pursuing
things on the CommVault side but wanted to know if there could be done
from Samba side, so I investigated a bit further via Google, mailing
lists and trying different security settings (security = user .vs.
domain, oplocks on off, etc.), here's what I found:

SMB Server logs (Samba) (smbd.log)
==================
 MA2 (1.2.3.4) connect to service galaxy initially as user
administrator (uid=xxxx, gid=xxx) (pid 5022)
[2008/10/08 10:15:13, 0] smbd/nttrans.c:call_nt_transact_ioctl(2463)
 call_nt_transact_ioctl(0x940cf): Currently not implemented.
[2008/10/08 10:15:49, 1] smbd/service.c:close_cnum(1230)
 MA2 (1.2.3.4) closed connection to service galaxy


SMB Client logs (Process Explorer, Server 2008 SP1 server)
===========================================(of interest is the NOT SUPPORTED
lines)

226     10:15:17.4357270
AM      archiveIndex.exe        6064    QueryEAFile
\\unix\galaxy\IndexCache\CV_Index\2\180\1223420221\tree.dat
0xC0000052
227     10:15:17.4360329
AM      archiveIndex.exe        6064    QueryStreamInformationFile
 \\brbackup1\galaxy\IndexCache\CV_Index\2\180\1223420221\tree.dat
  SUCCESS 0:
::$DATA
228     10:15:17.4362604
AM      archiveIndex.exe        6064    FileSystemControl
\\unix\galaxy\IndexCache\CV_Index\2\180\1223420221\tree.dat     NOT
SUPPORTED       Control: FSCTL_GET_OBJECT_ID
229     10:15:17.4364787
AM      archiveIndex.exe        6064    FileSystemControl
\\unix\galaxy\IndexCache\CV_Index\2\180\1223420221\tree.dat     NOT
SUPPORTED       Control: 0x94160 (Device:0x9 Function:88 Method: 0)
230     10:15:17.4388151
AM      archiveIndex.exe        6064    CloseFile
\\unix\galaxy\IndexCache\CV_Index\collects\66789.txt    SUCCESS
231     10:15:23.3183477
AM      archiveIndex.exe        6064    CloseFile
\\unix\galaxy\IndexCache\CV_Index\2\180\1223420221\tree.dat
SUCCESS


Further information on FSCTL_GET_OBJECT_ID from the MSDN pages
(http://msdn.microsoft.com/en-us/library/aa364570(VS.85).aspx) shows
that it's about getting the "object identifier" for the specified
file.

If anyone would be able to add some comments or provide some technical
direction, that would be much appreciated.

Regards,
Luke