Tuning Samba for more speed 2

odinb · Jul 31st 2016

This is a follow-up to thread: Tunning Samba for more speed

Hi!

Tried following this to speed up my SMB shares also!

My findings are:
when adding:
socket options = TCP_NODELAY SO_RCVBUF=65536 SO_SNDBUF=65536
read raw = yes 1
write raw = yes
max xmit = 65535
dead time = 15
getwd cache = yes
I get some improvements on speed, but not much.
Tried adding "min protocol = smb2" also, but then my Mac (El Capitan) refuses to connect with the error "There was a problem connecting to the server “openmediavault - SMB/CIFS”.". Removing it results in me being able to connect again. But then I see my connection using SMBv1!
US001277:~ odinb$ smbutil statshares -a
==================================================================================================
SHARE ATTRIBUTE TYPE VALUE
==================================================================================================
OMV-Media
SERVER_NAME openmediavault - SMB/CIFS._smb._tcp.local
USER_ID 839448149
SMB_NEGOTIATE AUTO_NEGOTIATE
SMB_VERSION SMB_1
SMB_SHARE_TYPE UNKNOWN
EXTENDED_SECURITY_SUPPORTED TRUE
UNIX_SUPPORT TRUE
LARGE_FILE_SUPPORTED TRUE
CLIENT_REQUIRES_SIGNING TRUE
--------------------------------------------------------------------------------------------------
US001277:~ odinb$
As far as I know, El Capitan should be compatible with smb3 (Poor SMB3 Performance).
I do not have any settings on my Mac to force smbv1 only:
US001277:~ odinb$ cat /etc/nsmb.conf
cat: /etc/nsmb.conf: No such file or directory
US001268677:~ epkodin$ cat ~/Library/Preferences/nsmb.conf
cat: /Users/epkodin/Library/Preferences/nsmb.conf: No such file or directory
US001277:~ odinb$

OMV2.2.5 Stone Burner (which I run) has samba version 3.6.6 installed as far as I can see:
root@openmediavault:/etc# smbstatus
Samba version 3.6.6
PID Username Group Machine
-------------------------------------------------------------------
12892 oder users us001277 (192.168.1.70)
Service pid machine Connected at
-------------------------------------------------------
OMV-Media 12892 us001277 Sun Jul 31 16:40:35 2016
No locked files
root@openmediavault:/etc#

Could it be that SMB2 is not supported fully in Samba 3.6.6? If not, why can I not connect after adding "min protocol = smb2" to OMV?

odinb · Aug 1st 2016

No ideas/responses? What version of SMB is supported on OMV 2? Should I expect it to connect using anything other than SMBv1?
My Windows 10 computer also does not connect when I set "min protocol = smb2".

ryecoaaron · Aug 1st 2016

OMV 2.x uses samba 3.6.6 which does support smb2. The problem isn't the protocol as much as Win10 and samba 3.6. Install the backports kernel (if you have already, button to do it in omv-extras) and then install samba 4 from backports. This supports Win10 and smb3 protocol.

odinb · Aug 2nd 2016

Thanks for the response!

Did the "backports kernel" via OMV-Extras.

Code

root@openmediavault:/# uname -a
Linux openmediavault 3.16.0-0.bpo.4-amd64 #1 SMP Debian 3.16.7-ckt25-2+deb8u3~bpo70+1 (2016-07-07) x86_64 GNU/Linux
root@openmediavault:/#

Do not see anything related to back ports (for samba 4), how do I do the second step?

ryecoaaron · Aug 2nd 2016

apt-get -t wheezy-backports install samba=2:4.1.17+dfsg-1~bpo70+1

odinb · Aug 2nd 2016

Thanks, did the upgrade, and now ran into another issue!

I now cannot access my shares! Have rebooted both OMV and client, re-created the share under SMB/CIFS, re-authorised under "Access Rights Management", still no cigar!

On windows, I get the error "The network path was not found", and on OS X I get "The operation can't be completed because the original item for "share" can't be found.".

What log should I check when trying to connect?

Did a "tail -f" on both "/var/log/messages" and "/var/log/samba/log.smbd", but I am not seeing anything when trying to connect!

Code

root@openmediavault:/# apt-cache policy samba
samba:
  Installed: 2:3.6.6-6+deb7u10
  Candidate: 2:3.6.6-6+deb7u10
  Version table:
     2:4.1.17+dfsg-1~bpo70+1 0
        100 http://ftp.debian.org/debian/ wheezy-backports/main amd64 Packages
 *** 2:3.6.6-6+deb7u10 0
        500 http://security.debian.org/ wheezy/updates/main amd64 Packages
        100 /var/lib/dpkg/status
     2:3.6.6-6+deb7u7 0
        500 http://ftp.us.debian.org/debian/ wheezy/main amd64 Packages
root@openmediavault:/# apt-get -t wheezy-backports install samba=2:4.1.17+dfsg-1~bpo70+1
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  libasn1-8-heimdal libgssapi3-heimdal libhcrypto4-heimdal libhdb9-heimdal libheimbase1-heimdal libheimntlm0-heimdal libhx509-5-heimdal libkdc2-heimdal
  libkrb5-26-heimdal libldb1 libntdb1 libpython2.7 libroken18-heimdal libtalloc2 libtdb1 libtevent0 libwbclient0 libwind0-heimdal python-dnspython
  python-ldb python-ntdb python-samba python-talloc python-tdb samba-common samba-common-bin samba-dsdb-modules samba-libs tdb-tools
Suggested packages:
  bind9 bind9utils ctdb ldb-tools smbldap-tools winbind heimdal-clients
Recommended packages:
  attr samba-vfs-modules
The following NEW packages will be installed:
  libasn1-8-heimdal libgssapi3-heimdal libhcrypto4-heimdal libhdb9-heimdal libheimbase1-heimdal libheimntlm0-heimdal libhx509-5-heimdal libkdc2-heimdal
  libkrb5-26-heimdal libldb1 libntdb1 libpython2.7 libroken18-heimdal libtevent0 libwind0-heimdal python-dnspython python-ldb python-ntdb python-samba
  python-talloc python-tdb samba-dsdb-modules samba-libs tdb-tools
The following packages will be upgraded:
  libtalloc2 libtdb1 libwbclient0 samba samba-common samba-common-bin
6 upgraded, 24 newly installed, 0 to remove and 38 not upgraded.
Need to get 14.3 MB of archives.
After this operation, 4,216 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
root@openmediavault:/# apt-cache policy samba
samba:
  Installed: 2:4.1.17+dfsg-1~bpo70+1
  Candidate: 2:4.1.17+dfsg-1~bpo70+1
  Version table:
 *** 2:4.1.17+dfsg-1~bpo70+1 0
        100 http://ftp.debian.org/debian/ wheezy-backports/main amd64 Packages
        100 /var/lib/dpkg/status
     2:3.6.6-6+deb7u10 0
        500 http://security.debian.org/ wheezy/updates/main amd64 Packages
     2:3.6.6-6+deb7u7 0
        500 http://ftp.us.debian.org/debian/ wheezy/main amd64 Packages
root@openmediavault:/#

Display More

ryecoaaron · Aug 2nd 2016

omv-mkconf samba
service samba restart

odinb · Aug 3rd 2016

Still no go, even rebooted the OMV server...

"tail -f" on the above 2 files still not showing anything, but I did check the "/var/log/samba/log.smbd" file for messages, and found something, do not know if it is related or not:

Code

[2016/08/02 17:06:06,  0] ../source3/smbd/server.c:1189(main)
  smbd version 4.1.17-Debian started.
  Copyright Andrew Tridgell and the Samba Team 1992-2013
[2016/08/02 17:06:06,  1] ../source3/param/loadparm.c:3179(lp_do_parameter)
  WARNING: The "null passwords" option is deprecated
[2016/08/02 17:06:06,  0] ../source3/param/loadparm.c:1325(lp_bool)
  lp_bool(yes 1): value is not boolean!

ryecoaaron · Aug 3rd 2016

Do you have tuning parameters in extra options?

odinb · Aug 3rd 2016

Yes, I have the following:

Code

socket options = TCP_NODELAY SO_RCVBUF=65536 SO_SNDBUF=65536
read raw = yes 1
write raw = yes
max xmit = 65535
dead time = 15
getwd cache = yes
# min protocol = smb2

and it is added to "/etc/samba/smb.conf".

tried removing them, still no go, rebooted, still no go...

ryecoaaron · Aug 3rd 2016

Are you manually editing the smb.conf file? If so, you shouldn't. Remove everything from extra options in settings and by share.

I just tested samba 4.1 on an OMV 2 VM and it works fine. You must have some option and/or customization that doesn't work with samba 4.

odinb · Aug 3rd 2016

Never had anything in the settings by share, only the global one, and that was already removed. Did not edit the smb.conf manually, only via the "Extra options" field.

What log file should I be able to see what goes wrong?

ryecoaaron · Aug 3rd 2016

No matter what settings I try on my VM, it still works. So, post the output of: cat /etc/samba/smb.conf

odinb · Aug 3rd 2016

root@openmediavault:~# cat /etc/samba/smb.conf
#======================= Global Settings =======================
[global]
workgroup = WORKGROUP
server string = %h server
dns proxy = no
log level = 1
syslog = 1
log file = /var/log/samba/log.%m
max log size = 1000
syslog only = yes
panic action = /usr/share/samba/panic-action %d
encrypt passwords = true
passdb backend = tdbsam
obey pam restrictions = yes
unix password sync = no
passwd program = /usr/bin/passwd %u
passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
pam password change = yes
socket options = TCP_NODELAY IPTOS_LOWDELAY
guest account = nobody
load printers = no
disable spoolss = yes
printing = bsd
printcap name = /dev/null
unix extensions = yes
wide links = no
create mask = 0777
directory mask = 0777
use sendfile = yes
aio read size = 16384
aio write size = 16384
null passwords = yes
local master = yes
time server = no
wins support = no

#======================= Share Definitions =======================
[OMV-Media]
path = /media/f7e3bc30-c184-4f4d-aa81-b87ffeb6d844/OMV-Media/
guest ok = no
read only = no
browseable = yes
inherit acls = yes
inherit permissions = yes
ea support = no
store dos attributes = no
vfs objects = recycle
recycle:repository = .recycle/%U
recycle:keeptree = yes
recycle:versions = yes
recycle:touch = yes
recycle:directory_mode = 0777
recycle:subdir_mode = 0700
recycle:exclude =
recycle:exclude_dir =
recycle:maxsize = 0
printable = no
create mask = 0755
force create mode = 0644
directory mask = 0755
force directory mode = 0755
hosts deny = admin
hide dot files = yes
valid users = "odinb","omvadmin","sabnzbd","vbox",@"plex"
invalid users =
read list = "vbox",@"plex"
write list = "odinb","omvadmin","sabnzbd"

root@openmediavault:~#

ryecoaaron · Aug 3rd 2016

I was able to almost duplicate your config and it still works. Not sure why you have admin in hosts deny but even that doesn't cause a problem. So, I have no idea why it isn't working. What is the output of: dpkg -l | grep samba

odinb · Aug 3rd 2016

oops, the "admin" thing is from Lastpass trying to login. i usually logoff lastpass to avoid this, but must have forgotten!
Fixed in the config now!

Code

root@openmediavault:~# dpkg -l | grep samba
ii  python-samba                        2:4.1.17+dfsg-1~bpo70+1             amd64        Python bindings for Samba
ii  samba                               2:4.1.17+dfsg-1~bpo70+1             amd64        SMB/CIFS file, print, and login server for Unix
ii  samba-common                        2:4.1.17+dfsg-1~bpo70+1             all          common files used by both the Samba server and client
ii  samba-common-bin                    2:4.1.17+dfsg-1~bpo70+1             amd64        Samba common files used by both the server and the client
ii  samba-dsdb-modules                  2:4.1.17+dfsg-1~bpo70+1             amd64        Samba Directory Services Database
ii  samba-libs:amd64                    2:4.1.17+dfsg-1~bpo70+1             amd64        Samba core libraries
root@openmediavault:~#

ryecoaaron · Aug 3rd 2016

I really don't know. I can't duplicate this. Just tried on a second OMV 2.x VM. Is everything updated?

odinb · Aug 3rd 2016

Yes, everything is updated, I usually run:
aptitude update && sudo aptitude safe-upgrade && sudo apt-get autoclean && sudo apt-get autoremove

to update/clean every now and then.

Removed the SMB share, and tried re-adding it, since it is obviously something with the share definition.

When trying to re-crerate, I get:

Code

Error #3005:
exception 'OMVException' with message 'The configuration object is not unique: A shared folder with the given name already exists' in /usr/share/openmediavault/engined/rpc/sharemgmt.inc:343
Stack trace:
#0 [internal function]: OMVRpcServiceShareMgmt->set(Array, Array)
#1 /usr/share/php/openmediavault/rpcservice.inc(125): call_user_func_array(Array, Array)
#2 /usr/share/php/openmediavault/rpc.inc(79): OMVRpcServiceAbstract->callMethod('set', Array, Array)
#3 /usr/sbin/omv-engined(500): OMVRpc::exec('ShareMgmt', 'set', Array, Array, 1)
#4 {main}

odinb · Aug 3rd 2016

After playing around with the samba service (service samba status/start/stop), I finally managed to re-create the share, but still cannot connect.

These are the errors I see:

odinb · Aug 3rd 2016

Can I downgrade to the old version of samba? How?

If not, what is the easiest way to re-install OMV without loosing my raid?

Need to get my shares online again....

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