Re: [Samba] SMB2 write performace slower than SMB1 in 10Gb network
On Sat, Apr 28, 2012 at 01:46:35PM +0800, Zhiming Zhou wrote: > I use Iometer to test normal file read/write performance, > at first, SMB2 is not enabled,test 1MB sequential read/write performance > with SMB1, I got 610 MB/s write performance which > is really good, while read performance is just 280 MB/s. > > Then I change "max protocol" to "SMB2" in smb.conf to enable > SMB2, other configs in smb.conf are not changed, restart samba, > reconnect in Windows 2008, use Iometer to run test again, I got > 470 MB/s write performance and 505 MB/s read performance. > > It's quite good that read performance bursts with SMB2, but > write performace droped by 140 MB/s, I run this write test > serveral times again, write performance indeed droped a lot, > so is it normal that SMB2 write performance is slower than > SMB1? No, this is not normal. Maybe you want to enable async I/O. Depending on the platform, plain aio might work with aio write size = 1 It might be a good idea to also enable vfs objects = aio_fork With latest Samba Jeremy Allison has also added the aio_pthread module, but that is not yet in released code. You can get it from the latest v3-6-test branch in our git repository. With best regards, Volker Lendecke -- SerNet GmbH, Bahnhofsallee 1b, 37081 Göttingen phone: +49-551-37-0, fax: +49-551-37-9 AG Göttingen, HRB 2816, GF: Dr. Johannes Loxen http://www.sernet.de, mailto:kont...@sernet.de -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Problem adding sambaGroupMapping
Thank you! it runs On 04/27/2012 08:10 PM, steve wrote: dn: cn=Students,ou=Groups,dc=amahoro,dc=bi changetype: modify add: objectClass objectClass: posixGroup - add: objectClass objectClass: sambaGroupMapping - add: sambaSID sambaSID: S-1-5-21-251852451-2940789264-3475694606 - add: sambaGroupType sambaGroupType: 5 Cheers, Steve -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
[Samba] SMB2 write performace slower than SMB1 in 10Gb network
Hi forks: I've been testing SMB2 with samba 3.6.4 performance these days, and I find a weird benchmark that SMB2 write performance is slower than SMB1 in 10Gb ethernet network. Server --- Linux: Redhat Enterprise 6.1 x64 Kernel: 2.6.31 x86_64 Samba: 3.6.4 (almost using the default configuration) Network: Chelsio T4 T420-SO-CR 10GbE network adapter RAID: Adaptec 51645 RAID Controller (Writeback RAID0 with 16 * 1TB SATA II disks) Filesystem: xfs (barrier off) Clinet --- Windows 2008 Server R2 64bit Network: Chelsio T4 T420-SO-CR 10GbE network adapter Test tool: Iometer Iometer configuration: Normal I/O test policy, 1MB sequential read/write Every Iometer test run by 3 minutes, Iometer test file size is 180GB. Server and client are connected directly with fabric links, without any 10GbE switches. I use Iometer to test normal file read/write performance, at first, SMB2 is not enabled,test 1MB sequential read/write performance with SMB1, I got 610 MB/s write performance which is really good, while read performance is just 280 MB/s. Then I change "max protocol" to "SMB2" in smb.conf to enable SMB2, other configs in smb.conf are not changed, restart samba, reconnect in Windows 2008, use Iometer to run test again, I got 470 MB/s write performance and 505 MB/s read performance. It's quite good that read performance bursts with SMB2, but write performace droped by 140 MB/s, I run this write test serveral times again, write performance indeed droped a lot, so is it normal that SMB2 write performance is slower than SMB1? Thanks ^_^ Regards Uranus Zhou -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
[Samba] Problems ldap authentication for Samba 3.5.11-2-1
Samba team, I'm having some problems to have a client Windows XP, I believe all systems could have the same issue, using Ldap authentication with Samba. This is a native OpenFiler configuration with a local LDAP server for Samba shares. The problem is that sharing is never authenticated where my suspicious is about sambaSID. Basically I create a test user called "rlvcosta". This user was created into LDAP as : dn: uid=rlvcosta,ou=People,dc=flores,dc=com objectClass: inetOrgPerson objectClass: posixAccount objectClass: sambaSamAccount homeDirectory: /dev/null loginShell: /bin/false cn: rlvcosta givenName: rlvcosta sn: rlvcosta uid: rlvcosta uidNumber: 500 gidNumber: 9126 sambaSID: S-1-5-21-1299536883-3844537390-917088389-1001 This appears to be ok. Although when I put a tcpdumo trace I see: Lightweight Directory Access Protocol LDAPMessage searchRequest(161) "dc=flores,dc=com" wholeSubtree messageID: 161 protocolOp: searchRequest (3) searchRequest baseObject: dc=flores,dc=com scope: wholeSubtree (2) derefAliases: neverDerefAliases (0) sizeLimit: 0 timeLimit: 15 typesOnly: False Filter: (&(sambaSID=S-1-5-21-1299536883-3844537390-917088389-513)(objectclass=sambaSamAccount)) filter: and (0) and: (&(sambaSID=S-1-5-21-1299536883-3844537390-917088389-513)(objectclass=sambaSamAccount)) and: 2 items Filter: (sambaSID=S-1-5-21-1299536883-3844537390-917088389-513) and item: equalityMatch (3) equalityMatch attributeDesc: sambaSID assertionValue: S-1-5-21-1299536883-3844537390-917088389-513 Filter: (objectclass=sambaSamAccount) and item: equalityMatch (3) equalityMatch attributeDesc: objectclass assertionValue: sambaSamAccount attributes: 38 items AttributeDescription: uid AttributeDescription: uidNumber AttributeDescription: gidNumber AttributeDescription: homeDirectory AttributeDescription: sambaPwdLastSet AttributeDescription: sambaPwdCanChange AttributeDescription: sambaPwdMustChange AttributeDescription: sambaLogonTime AttributeDescription: sambaLogoffTime AttributeDescription: sambaKickoffTime AttributeDescription: cn AttributeDescription: sn AttributeDescription: displayName AttributeDescription: sambaHomeDrive AttributeDescription: sambaHomePath AttributeDescription: sambaLogonScript AttributeDescription: sambaProfilePath AttributeDescription: description AttributeDescription: sambaUserWorkstations AttributeDescription: sambaSID AttributeDescription: sambaPrimaryGroupSID AttributeDescription: sambaLMPassword AttributeDescription: sambaNTPassword AttributeDescription: sambaDomainName AttributeDescription: objectClass AttributeDescription: sambaAcctFlags AttributeDescription: sambaMungedDial AttributeDescription: sambaBadPasswordCount AttributeDescription: sambaBadPasswordTime AttributeDescription: sambaPasswordHistory AttributeDescription: modifyTimestamp AttributeDescription: sambaLogonHours AttributeDescription: modifyTimestamp AttributeDescription: uidNumber AttributeDescription: gidNumber AttributeDescription: homeDirectory AttributeDescription: loginShell AttributeDescription: gecos See that by Ldap DB the rlvcosta sambaSID is supposed to be S-1-5-21-1299536883-3844537390-917088389-1001. But the search made from Samba use the sufix 513, unless 1001. Samba receives appropriately the request from client but looks like it doesn't map correctly the search to LDAP server. I could not understand by the tcpdump trace the dynamic from Samba authentication with LDAP. The LDAP has the correct structure but the search from Samba doesn't create the correct sambaSID. My understand would be that Samba search the sambaSID prefix, like below, and then suffi
[Samba] Tools
Helo list, there is some tool to admin samba4 active directory users and gpo under linux, for examplo in windows thereis a adminpack, in linux thereis something as adminpack? PD: I do not like phpldapadmin salu2s -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
[Samba] Samba4 how to list all members of a group
Version 4.0.0alpha20-GIT-1fbc185 On the Linux dc. Thanks, Steve -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Problem adding sambaGroupMapping
Hi Try: dn: cn=Students,ou=Groups,dc=amahoro,dc=bi changetype: modify add: objectClass objectClass: posixGroup - add: objectClass objectClass: sambaGroupMapping - add: sambaSID sambaSID: S-1-5-21-251852451-2940789264-3475694606 - add: sambaGroupType sambaGroupType: 5 Cheers, Steve On 27/04/12 19:07, stefano malini wrote: This is the output, still wrong: ldapmodify: modify operation type is missing at line 2, entry "cn=Students,ou=Groups,dc=amahoro,dc=bi" root@amahoro:~# ldapmodify -x -W -D 'cn=Manager,dc=amahoro,dc=bi' Enter LDAP Password: dn: cn=Students,ou=Groups,dc=amahoro,dc=bi changetype: modify add: objectClass objectClass: posixGroup add: objectClass objectClass: sambaGroupMapping add: sambaSID sambaSID: S-1-5-21-251852451-2940789264-3475694606 add: sambaGroupType sambaGroupType: 5 ldapmodify: wrong attributeType at line 5, entry "cn=Students,ou=Groups,dc=amahoro,dc=bi" On 04/27/2012 06:54 PM, steve wrote: On 27/04/12 18:38, stefano malini wrote: Hi, dn: cn=Students,ou=Groups,dc=amahoro,dc=bi changetype: modify add: objectClass objectClass: posixGroup objectClass: sambaGroupMapping sambaSID: S-1-5-21-251852451-2940789264-3475694606 sambaGroupType: 5 I think you have to separate them: changetype: modify add: objectClass objectClass: posixGroup - add: objectClass objectClass: sambaGroupMapping - add: sambaSID sambaSID: S-1-5-21-251852451-2940789264-3475694606 - add: sambaGroupType sambaGroupType: 5 Cheers, Steve -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
[Samba] creating file on share getting "premission denied" on a linux client
Hello, I have linux samba server trying to share user home directories, and I am trying to mount the shares on a linux client. I am running into a issue. here is truncated output of smb.conf turncated o/p of my smb.conf for the share [50483] path = /home/50483 users = dituser public = no writable = yes printable = no write list = 50483 on the samba server [root@HOST1 50483]# cd /home/50483 [root@HOST1 50483]# ls -lrt total 20 -rw--- 1 50483 admin 10 Apr 26 12:55 .bash_history drwxr-xr-x 10 rootroot4096 Apr 26 14:11 ../ drwxrwxr-x 2 50483 admin 4096 Apr 26 14:42 dir1/ drwxr-xr-x 3 50483 admin 4096 Apr 26 14:42 ./ [root@HOST2 ~1]$ id 50483 uid=509(50483) gid=500(admin) groups=500(admin) I mounted the share on a linux client, but when I create a file I am getting permission denied, not sure what I am missing here. on client server [root@HOST2 ~]# mount -t cifs -o username=dituser,password=ditpasswd,rw,workgroup=MYGROUP '// 10.10.3.43/50483' /mnt/cifs/ [root@HOST2 ~]# su - 50483 [50483@HOST2 ~]$ cd /mnt/cifs/dir1/ [50483@HOST2 dir1]$ touch file1 touch: cannot touch `file1': Permission denied [50483@HOST2 dir1]$ id uid=509(50483) gid=500(admin) groups=500(admin) Thanks, -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Destination share larger than windows source
On Fri, Apr 20, 2012 at 11:57:31AM -0700, Jeremy Allison wrote: > Ah. Try setting the per share parameter "allocation roundup size = 1024" > (instead of the default 1mb). > This resolved my problem! Thanks! Mike (: -- m...@piratehaven.org---The_glass_is_too_big -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Problem adding sambaGroupMapping
This is the output, still wrong: ldapmodify: modify operation type is missing at line 2, entry "cn=Students,ou=Groups,dc=amahoro,dc=bi" root@amahoro:~# ldapmodify -x -W -D 'cn=Manager,dc=amahoro,dc=bi' Enter LDAP Password: dn: cn=Students,ou=Groups,dc=amahoro,dc=bi changetype: modify add: objectClass objectClass: posixGroup add: objectClass objectClass: sambaGroupMapping add: sambaSID sambaSID: S-1-5-21-251852451-2940789264-3475694606 add: sambaGroupType sambaGroupType: 5 ldapmodify: wrong attributeType at line 5, entry "cn=Students,ou=Groups,dc=amahoro,dc=bi" On 04/27/2012 06:54 PM, steve wrote: On 27/04/12 18:38, stefano malini wrote: Hi, dn: cn=Students,ou=Groups,dc=amahoro,dc=bi changetype: modify add: objectClass objectClass: posixGroup objectClass: sambaGroupMapping sambaSID: S-1-5-21-251852451-2940789264-3475694606 sambaGroupType: 5 I think you have to separate them: changetype: modify add: objectClass objectClass: posixGroup - add: objectClass objectClass: sambaGroupMapping - add: sambaSID sambaSID: S-1-5-21-251852451-2940789264-3475694606 - add: sambaGroupType sambaGroupType: 5 Cheers, Steve -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Problem adding sambaGroupMapping
On 27/04/12 18:38, stefano malini wrote: Hi, dn: cn=Students,ou=Groups,dc=amahoro,dc=bi changetype: modify add: objectClass objectClass: posixGroup objectClass: sambaGroupMapping sambaSID: S-1-5-21-251852451-2940789264-3475694606 sambaGroupType: 5 I think you have to separate them: changetype: modify add: objectClass objectClass: posixGroup - add: objectClass objectClass: sambaGroupMapping - add: sambaSID sambaSID: S-1-5-21-251852451-2940789264-3475694606 - add: sambaGroupType sambaGroupType: 5 Cheers, Steve -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
[Samba] Problem adding sambaGroupMapping
Hi, i show the command-output trying to add the objectClass sambaGroupMapping to some entries that have posixGroup objectClass: root@amahoro:~# ldapmodify -x -W -D 'cn=Manager,dc=amahoro,dc=bi' Enter LDAP Password: dn: cn=Students,ou=Groups,dc=amahoro,dc=bi changetype: modify add: objectClass objectClass: posixGroup objectClass: sambaGroupMapping sambaSID: S-1-5-21-251852451-2940789264-3475694606 sambaGroupType: 5 ldapmodify: wrong attributeType at line 6, entry "cn=Students,ou=Groups,dc=amahoro,dc=bi" I don't know what is wrong, sambaSID is a correct attribute. Do you have ideas? Thanks -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Semantics of "smb ports = 0"
On 04/26/2012 09:13 PM, Jeremy Allison wrote: > On Wed, Apr 25, 2012 at 10:04:30AM -0400, Nikolaus Rath wrote: >> Hello, >> >> The qemu emulator has a feature to fork a samba instance for file >> sharing with the emulated hosts. It communicates with smbd over stdin. >> The generated configuration file contains a "smb ports = 0" directive to >> prevent smbd from listening to any ports. >> >> Unfortunately, with at least Samba 3.6.4 this causes a segfault >> instead: >> >> [0] vostro:/tmp/qemu-smb.6836-0# smbd -i -s smb.conf >> Unable to setup corepath for smbd: Operation not permitted >> smbd version 3.6.4 started. >> Copyright Andrew Tridgell and the Samba Team 1992-2011 >> open_sockets_smbd: No sockets available to bind to. >> === >> Abnormal server exit: open_sockets_smbd() failed >> === >> BACKTRACE: 6 stack frames: >> #0 smbd(log_stack_trace+0x1a) [0x7fe50c14f8ba] >> #1 smbd(+0x6a0743) [0x7fe50c3bd743] >> #2 smbd(+0x6a0a41) [0x7fe50c3bda41] >> #3 smbd(main+0xa52) [0x7fe50be26d42] >> #4 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7fe508ac0ead] >> #5 smbd(+0x10a6b9) [0x7fe50be276b9] >> >> >> Also, there is some confusion as to whether this option was actually >> ever necessary. >> >> Could someone clarify if something like this is still needed, or if >> Samba does the right think automatically? In the later case, has this >> always been the case or was it introduced in a specific version (and the >> "smb ports = 0" required before)? > > In fack looking at the current code in v3-6-test, so long as > you ensure that you run without the '-D' (deamonize) option, > and fd 0 is a socket (we use getsockopt(fd, SOL_SOCKET, SO_TYPE...) > to detect this) then we'll go into 'inetd' mode, which I > think is what you want. Yes. I am just wondering if this has always been the case, or if this is a recent feature and smb ports = 0 may have been required in earlier versions. Bests, -Nikolaus -- »Time flies like an arrow, fruit flies like a Banana.« PGP fingerprint: 5B93 61F8 4EA2 E279 ABF6 02CF A9AD B7F8 AE4E 425C -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Semantics of "smb ports = 0"
On 04/26/2012 09:09 PM, Jeremy Allison wrote: > On Wed, Apr 25, 2012 at 10:04:30AM -0400, Nikolaus Rath wrote: >> Hello, >> >> The qemu emulator has a feature to fork a samba instance for file >> sharing with the emulated hosts. It communicates with smbd over stdin. >> The generated configuration file contains a "smb ports = 0" directive to >> prevent smbd from listening to any ports. >> >> Unfortunately, with at least Samba 3.6.4 this causes a segfault >> instead: >> >> [0] vostro:/tmp/qemu-smb.6836-0# smbd -i -s smb.conf >> Unable to setup corepath for smbd: Operation not permitted >> smbd version 3.6.4 started. >> Copyright Andrew Tridgell and the Samba Team 1992-2011 >> open_sockets_smbd: No sockets available to bind to. >> === >> Abnormal server exit: open_sockets_smbd() failed >> === >> BACKTRACE: 6 stack frames: >> #0 smbd(log_stack_trace+0x1a) [0x7fe50c14f8ba] >> #1 smbd(+0x6a0743) [0x7fe50c3bd743] >> #2 smbd(+0x6a0a41) [0x7fe50c3bda41] >> #3 smbd(main+0xa52) [0x7fe50be26d42] >> #4 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7fe508ac0ead] >> #5 smbd(+0x10a6b9) [0x7fe50be276b9] >> >> >> Also, there is some confusion as to whether this option was actually >> ever necessary. >> >> Could someone clarify if something like this is still needed, or if >> Samba does the right think automatically? In the later case, has this >> always been the case or was it introduced in a specific version (and the >> "smb ports = 0" required before)? > > If you remove the "smb ports = 0" value does the started Samba > bind to any interfaces ? No, with Samba 3.6.4 it does not listen anywhere. So this has always been the case? Best, -Nikolaus -- »Time flies like an arrow, fruit flies like a Banana.« PGP fingerprint: 5B93 61F8 4EA2 E279 ABF6 02CF A9AD B7F8 AE4E 425C -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
