Fw: Shadow copy services - path error on windows 7 using gpfs
Orlando Richards
orlando.richards at ed.ac.uk
Fri Sep 14 08:45:31 MDT 2012
Hi Nimrod,
Thanks for that - I must have missed your reply behind the 4.0.0 release
candidate announcements!
I had a go at your suggestion - but it didn't seem to help at all. I
also patched up to the latest release of 3.5 (3.5.17) to be sure, but
still no luck.
For reference - I'd love to see your full samba config (testparm -sv) -
mine's attached if you're interested.
--
Orlando
On 13/09/12 16:37, Nimrod Sapir wrote:
> Hi Orlando
>
> I replied to your question through the web, and thought I would forward
> this to you directly, in case you don't follow the mailing list.
>
> If this issue is still relevant - see below the solution which worked
> for me. I would be happy to hear if it solves the issue in your
> environment too.
>
> Thanks
>
> Nimrod Sapir
> IBM - XIV, Israel
> NAS Development Team
> Office: +972-3-689-7763
> Cell: +972-54-7726-320
>
> ----- Forwarded by Nimrod Sapir/Israel/IBM on 13/09/2012 18:33 -----
>
> From: Nimrod Sapir/Israel/IBM at IBMIL
> To: samba-technical at lists.samba.org,
> Date: 13/09/2012 18:30
> Subject: Re: Shadow copy services - path error on windows 7 using gpfs
> Sent by: samba-technical-bounces at lists.samba.org
> ------------------------------------------------------------------------
>
>
>
>
>
> Orlando Richards <orlando.richards <at> ed.ac.uk> writes:
>
> >
> > Hi there,
> >
> > I've come across an obscure problem on a Windows 7 client when accessing
> > shadow copies on our samba server, which uses GPFS as the underlying
> > file system.
> >
> > I'm using:
> > GPFS 3.4.0-12 (also tested with 3.4.0-7)
> > samba 3.6.4 from the sernet repos (also tested with 3.5.14)
> > RHEL 5.6 (also tested on 5.8, 6.2)
> > ctdb 1.0.114.4-1
> >
> > The task I'm trying to perform is to copy a folder out of the shadow
> > copy, and place it somewhere else (say, on the desktop, which is stored
> > on local disk). However, when doing so I get an error window up which
> says:
> >
>
> Sorry for replying for such an old thread, but I had the exact same problem
> lately, and the solution may be interesting to other people here. After some
> research I realized that gpfs tries to resolve the paths of the snapshots
> without those paths being translated by the shadow_copy module first. The
> solution is very simple - put the shadow_copy2 module first in the list
> of vfs
> modules in smb.conf. replace:
>
> vfs objects = gpfs, fileid, shadow_copy2
>
> with:
> vfs objects = shadow_copy2, gpfs, fileid
>
> This seems to be working for me, although I would be happy receive
> feedback from
> other users.
>
> Seems that there is a usability issue here. I don't see how it can be
> prevented
> with the existing design of the vfs module logic, but it should at least be
> documented.
>
>
>
>
--
--
Dr Orlando Richards
Information Services
IT Infrastructure Division
Unix Section
Tel: 0131 650 4994
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
-------------- next part --------------
[root at nasfe08 ~]# testparm -sv
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[chss]"
Processing section "[cmvm]"
Processing section "[cse]"
Processing section "[isg]"
Processing section "[ext]"
Processing section "[csg]"
Processing section "[nsu]"
Processing section "[sas]"
Loaded services file OK.
Server role: ROLE_DOMAIN_MEMBER
[global]
dos charset = CP850
unix charset = UTF-8
display charset = LOCALE
workgroup = ED
realm = ED.AC.UK
netbios name = ECDFTESTNAS
netbios aliases =
netbios scope =
server string = ECDF Test NAS Cluster
interfaces =
bind interfaces only = No
security = ADS
auth methods =
encrypt passwords = Yes
update encrypted = No
client schannel = Auto
server schannel = Auto
allow trusted domains = Yes
map to guest = Never
null passwords = No
obey pam restrictions = No
password server = 192.168.149.43 192.168.97.66 192.168.97.20 192.168.97.21 192.168.97.33
smb passwd file = /etc/samba/smbpasswd
private dir = /etc/samba
passdb backend = tdbsam
algorithmic rid base = 1000
root directory =
guest account = nobody
enable privileges = No
pam password change = No
passwd program =
passwd chat = *new*password* %n\n *new*password* %n\n *changed*
passwd chat debug = No
passwd chat timeout = 2
check password script =
username map =
password level = 0
username level = 0
unix password sync = No
restrict anonymous = 0
lanman auth = No
ntlm auth = Yes
client NTLMv2 auth = No
client lanman auth = No
client plaintext auth = No
client use spnego principal = No
preload modules =
dedicated keytab file =
kerberos method = default
map untrusted to domain = No
log level = 0
syslog = 1
syslog only = No
log file = /var/log/samba/%m.log
max log size = 1000
debug timestamp = Yes
debug prefix timestamp = No
debug hires timestamp = Yes
debug pid = No
debug uid = No
debug class = No
enable core files = Yes
smb ports = 445 139
large readwrite = Yes
max protocol = NT1
min protocol = CORE
min receivefile size = 0
read raw = Yes
write raw = Yes
disable netbios = No
reset on zero vc = No
acl compatibility = auto
defer sharing violations = Yes
nt pipe support = Yes
nt status support = Yes
announce version = 4.9
announce as = NT
max mux = 50
max xmit = 16644
name resolve order = lmhosts wins host bcast
max ttl = 259200
max wins ttl = 518400
min wins ttl = 21600
time server = No
unix extensions = No
use spnego = Yes
client signing = auto
server signing = No
client use spnego = Yes
client ldap sasl wrapping = plain
enable asu support = No
svcctl list =
deadtime = 0
getwd cache = Yes
keepalive = 300
lpq cache time = 30
max smbd processes = 0
paranoid server security = Yes
max disk size = 0
max open files = 16384
socket options = TCP_NODELAY
use mmap = Yes
hostname lookups = No
name cache timeout = 660
ctdbd socket =
cluster addresses =
clustering = Yes
ctdb timeout = 0
load printers = No
printcap cache time = 750
printcap name = /etc/printcap
cups server =
cups encrypt = No
cups connection timeout = 30
iprint server =
disable spoolss = No
addport command =
enumports command =
addprinter command =
deleteprinter command =
show add printer wizard = Yes
os2 driver map =
mangling method = hash2
mangle prefix = 1
max stat cache size = 256
stat cache = Yes
machine password timeout = 604800
add user script =
rename user script =
delete user script =
add group script =
delete group script =
add user to group script =
delete user from group script =
set primary group script =
add machine script =
shutdown script =
abort shutdown script =
username map script =
logon script =
logon path = \\%N\%U\profile
logon drive =
logon home = \\%N\%U
domain logons = No
init logon delayed hosts =
init logon delay = 100
os level = 99
lm announce = Auto
lm interval = 60
preferred master = No
local master = Yes
domain master = Auto
browse list = Yes
enhanced browsing = Yes
dns proxy = Yes
wins proxy = No
wins server = 192.168.13.14
wins support = No
wins hook =
kernel oplocks = Yes
lock spin time = 200
oplock break wait time = 0
ldap admin dn =
ldap delete dn = No
ldap group suffix =
ldap idmap suffix =
ldap machine suffix =
ldap passwd sync = no
ldap replication sleep = 1000
ldap suffix =
ldap ssl = start tls
ldap ssl ads = No
ldap deref = auto
ldap follow referral = Auto
ldap timeout = 15
ldap connection timeout = 2
ldap page size = 1024
ldap user suffix =
ldap debug level = 0
ldap debug threshold = 10
eventlog list =
add share command =
change share command =
delete share command =
preload =
lock directory = /var/lib/samba
state directory = /var/lib/samba
cache directory = /var/lib/samba
pid directory = /var/run/samba
utmp directory =
wtmp directory =
utmp = No
default service =
message command =
get quota command =
set quota command =
remote announce =
remote browse sync =
socket address = 0.0.0.0
nmbd bind explicit broadcast = Yes
homedir map = auto.home
afs username map =
afs token lifetime = 604800
log nt token command =
time offset = 0
NIS homedir = No
registry shares = No
usershare allow guests = No
usershare max shares = 0
usershare owner only = Yes
usershare path = /var/lib/samba/usershares
usershare prefix allow list =
usershare prefix deny list =
usershare template share =
panic action =
perfcount module =
host msdfs = Yes
passdb expand explicit = No
idmap backend = tdb2
idmap alloc backend =
idmap cache time = 604800
idmap negative cache time = 120
idmap uid = 1000-2000000
idmap gid = 1000-2000000
template homedir = /exports/nas/public/templatehome
template shell = /bin/bash
winbind separator = \
winbind cache time = 660
winbind reconnect delay = 5
winbind max clients = 200
winbind enum users = No
winbind enum groups = No
winbind use default domain = Yes
winbind trusted domains only = No
winbind nested groups = Yes
winbind expand groups = 1
winbind nss info = template
winbind refresh tickets = No
winbind offline logon = Yes
winbind normalize names = No
winbind rpc only = No
create krb5 conf = Yes
shadow:basedir = /exports/nas
shadow:snapdir = .snapshots
shadow:fixinodes = yes
idmap : script = /exports/nas/private/ecdf-system/NAS/samba/private/idmap.sh
nfs4: acedup = dontcare
nfs4: chown = yes
nfs4: mode = simple
gpfs:getrealfilename = no
gpfs:sharemodes = No
fileid:mapping = fsname
comment =
path =
username =
invalid users =
valid users =
admin users =
read list =
write list =
printer admin =
force user =
force group =
read only = Yes
acl check permissions = Yes
acl group control = Yes
acl map full control = Yes
create mask = 0744
force create mode = 00
security mask = 0777
force security mode = 00
directory mask = 0755
force directory mode = 00
directory security mask = 0777
force directory security mode = 00
force unknown acl user = Yes
inherit permissions = No
inherit acls = No
inherit owner = No
guest only = No
administrative share = No
guest ok = No
only user = No
hosts allow =
hosts deny =
allocation roundup size = 1048576
aio read size = 0
aio write size = 0
aio write behind =
ea support = No
nt acl support = Yes
profile acls = No
map acl inherit = Yes
afs share = No
smb encrypt = auto
block size = 1024
change notify = Yes
directory name cache size = 100
kernel change notify = Yes
max connections = 0
min print space = 0
strict allocate = No
strict sync = No
sync always = No
use sendfile = Yes
write cache size = 0
max reported print jobs = 0
max print jobs = 1000
printable = No
printing = cups
cups options =
print command =
lpq command = %p
lprm command =
lppause command =
lpresume command =
queuepause command =
queueresume command =
printer name =
use client driver = No
default devmode = Yes
force printername = No
printjob username = %U
default case = lower
case sensitive = Auto
preserve case = Yes
short preserve case = Yes
mangling char = ~
hide dot files = Yes
hide special files = No
hide unreadable = No
hide unwriteable files = No
delete veto files = No
veto files =
hide files =
veto oplock files =
map archive = No
map hidden = No
map system = No
map readonly = no
mangled names = Yes
store dos attributes = No
dmapi support = No
browseable = Yes
access based share enum = No
blocking locks = Yes
csc policy = manual
fake oplocks = No
locking = Yes
oplocks = Yes
level2 oplocks = Yes
oplock contention limit = 2
posix locking = Yes
strict locking = Auto
share modes = Yes
dfree cache time = 0
dfree command =
copy =
preexec =
preexec close = No
postexec =
root preexec =
root preexec close = No
root postexec =
available = Yes
volume =
fstype = NTFS
set directory = No
wide links = Yes
follow symlinks = Yes
dont descend =
magic script =
magic output =
delete readonly = No
dos filemode = No
dos filetimes = Yes
dos filetime resolution = No
fake directory create times = No
vfs objects = shadow_copy2, gpfs, fileid
msdfs root = No
msdfs proxy =
[chss]
comment = College of Humanities and Social Sciences
path = /exports/nas/exports/chss
valid users = "@ED\Domain Users"
read only = No
[cmvm]
comment = College of Medicine and Veterinary Medicine
path = /exports/nas/exports/cmvm
valid users = "@ED\Domain Users"
read only = No
[cse]
comment = College of Science and Engineering
path = /exports/nas/exports/cse
valid users = "@ED\Domain Users"
read only = No
[isg]
comment = Information Services Group
path = /exports/nas/exports/isg
valid users = "@ED\Domain Users"
read only = No
[ext]
comment = External Groups
path = /exports/nas/exports/ext
valid users = "@ED\Domain Users"
read only = No
[csg]
comment = Corporate Services
path = /exports/nas/exports/csg
valid users = "@ED\Domain Users"
read only = No
[nsu]
comment = Non-Specific Units
path = /exports/nas/exports/nsu
valid users = "@ED\Domain Users"
read only = No
[sas]
comment = Student and Academic Services
path = /exports/nas/exports/sas
valid users = "@ED\Domain Users"
read only = No
More information about the samba-technical
mailing list