[CentOS] owncloud - external storage - smb

hi fellas

does anybody use by a chance external smb storage in current 
owncloud version?
If yes does it work for you?

I have, otherwise fully OK samba, but my owncload cannot get 
to it.
On my setup(pretty default) users log into owncloud with an 
ldap backend, the very same samba uses, yet in samba logs I see:

....
2017/10/05 15:41:00.479585,  5] 
.../source3/auth/server_info_sam.c:122(make_server_info_sam)
   make_server_info_sam: made server info for user 
cloudadmin -> cloudadmin
[2017/10/05 15:41:00.479709,  3] 
.../source3/auth/auth.c:249(auth_check_ntlm_password)
   check_ntlm_password: sam authentication for user 
[cloudadmin] succeeded
[2017/10/05 15:41:00.479772,  5] 
.../source3/auth/auth.c:292(auth_check_ntlm_password)
   check_ntlm_password:  PAM Account for user [cloudadmin] 
succeeded
[2017/10/05 15:41:00.479810,  2] 
.../source3/auth/auth.c:305(auth_check_ntlm_password)
   check_ntlm_password:  authentication for user 
[cloudadmin] -> [cloudadmin] -> [cloudadmin] succeeded
[2017/10/05 15:41:00.481148,  2] 
.../source3/passdb/pdb_ldap.c:2310(init_group_from_ldap)
   init_group_from_ldap: Entry found for group: 544
[2017/10/05 15:41:00.481740,  4] 
.../source3/passdb/pdb_ldap.c:2437(ldapsam_getgroup)
   ldapsam_getgroup: Did not find group, filter was 
(&(objectClass=sambaGroupMapping)(sambaSID=S-1-5-32-545))
[2017/10/05 15:41:00.482335,  4] 
.../source3/passdb/pdb_ldap.c:2437(ldapsam_getgroup)
   ldapsam_getgroup: Did not find group, filter was 
(&(objectClass=sambaGroupMapping)(sambaSID=S-1-5-32-545))
[2017/10/05 15:41:00.484920,  4] 
.../source3/passdb/pdb_ldap.c:2437(ldapsam_getgroup)
   ldapsam_getgroup: Did not find group, filter was 
(&(objectClass=sambaGroupMapping)(sambaSID=S-1-1-0))
[2017/10/05 15:41:00.485371,  4] 
.../source3/passdb/pdb_ldap.c:2437(ldapsam_getgroup)
   ldapsam_getgroup: Did not find group, filter was 
(&(objectClass=sambaGroupMapping)(sambaSID=S-1-1-0))
[2017/10/05 15:41:00.485723,  4] 
.../source3/passdb/pdb_ldap.c:2437(ldapsam_getgroup)
   ldapsam_getgroup: Did not find group, filter was 
(&(objectClass=sambaGroupMapping)(sambaSID=S-1-5-2))
[2017/10/05 15:41:00.486136,  4] 
.../source3/passdb/pdb_ldap.c:2437(ldapsam_getgroup)
   ldapsam_getgroup: Did not find group, filter was 
(&(objectClass=sambaGroupMapping)(sambaSID=S-1-5-2))
[2017/10/05 15:41:00.486525,  4] 
.../source3/passdb/pdb_ldap.c:2437(ldapsam_getgroup)
   ldapsam_getgroup: Did not find group, filter was 
(&(objectClass=sambaGroupMapping)(sambaSID=S-1-5-11))
[2017/10/05 15:41:00.486979,  4] 
.../source3/passdb/pdb_ldap.c:2437(ldapsam_getgroup)
   ldapsam_getgroup: Did not find group, filter was 
(&(objectClass=sambaGroupMapping)(sambaSID=S-1-5-11))

thanks, L.