Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: NFS with a NAS: permanently inconsistent directory state across clients
Operating Systems Solaris NFS with a NAS: permanently inconsistent directory state across clients Post 302938873 by achenle on Thursday 19th of March 2015 04:30:55 PM
Old 03-19-2015
Umm, no you didn't provide nfsstat data in your original post:

Quote:
Originally Posted by cosmojetz
Hi,

I am having some NFS directory consistency problems with the below setup on a local (192.) network:
1. Different permissions (chmod) for the same NFS dir are reflected on different clients.
2. (more serious) an NFS dir created on client1 cannot be accessed on client2; this applies to some directories, not others; when this problem applies to a directory, it is a consistent problem.



Setup:

NFS server: Thecus N8800, 16Tb raw, RAID6
Client1: Sun Fire V210, Solaris 5.10 Generic_139555-08
Client2: Sun Fire V100, Solaris 5.10 Generic_118822-23

Both clients nfs-mount. Flags: vers=3,proto=tcp,sec=sys,hard,intr,link,symlink,acl,rsize=32768,wsize=32768,retrans=5,timeo=600
Attr cache: acregmin=3,acregmax=60,acdirmin=30,acdirmax=60



Use case on Client1:

CD to an nfs subdir:
Code:
cd /.../nfsdir
ls -la
drwxrwx---+ 56 user group   12288 Mar 13 15:28 .
drwxrwx---+  3 user group      30 Mar 17 13:57 ..
drwxrwx---+  3 user group   53248 Oct  3 04:41 somedir1
drwxrwxrwx+  7 user group    4096 Mar 13 15:29 somedir2

All good. CD to somedir1 works; can LS and see files. Same for somedir2. Note: somedir2 was mkdir'ed on Client1.



Use case On Client2:

CD to the same nfs subdir. Listing files works, but the permissions are different than what is listed on Client1:
Code:
cd /.../nfsdir
ls -la
drwx------+ 56 user group     12288 Mar 13 14:28 .
drwx------+  3 user group        30 Mar 17 12:57 ..
drwx------+  3 user group     53248 Oct  3 04:41 somedir1
drwx---rwx+  7 user group      4096 Mar 13 14:29 somedir2

PROBLEM1: the group permission for the same dir is different on client1 vs. client2.

CD to somedir1 works; can LS and see files.
PROBLEM2: *cannot* CD to somedir2:

Code:
bash: cd: somedir2/: Not a directory

On both clients, 'group' is defined in /etc/groups with the same id; 'user' is defined in /etc/passwd with the same id.

When I un-mount and re-mount the nfs dir on client2, I am able to access the directory in question (subdir2). Permissions, however, are still different across clients.



Does anyone have suggestions as to what is going wrong with my NFS setup? I'll be happy to post more information.

Thanks a lot!
What's the inode number of the problem directories and/or files?

I suspect the problem is with the server - Solaris is VERY particular about NFS implementations being EXACTLY according to the NFS spec.

Can a 64-bit process access the files/directories?
 

8 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

NFS to NAS transfer

Hey guys, My servers run Solaris 10. I have to move data from my NFS mount drives into the NAS storage area with all the same permissions ( for the users and programs and everything else). Can any one help me please ?? Thanks. MisterKhan (0 Replies)
Discussion started by: MisterKhan
0 Replies

2. UNIX for Dummies Questions & Answers

NFS mount of Windows NAS

The UPS connected to the Disk Array portion of my Windows 2003 NAS burned up over the weekend. Reconnected it to a new UPS and re-booted the NAS box. Since then I have not been able to get my HPUX 10.2 box to mount the shared drives on the NAS. At boot, the NFS client & server subsystems do a... (0 Replies)
Discussion started by: twalker0
0 Replies

3. UNIX for Advanced & Expert Users

Quest on NFS with 1 Server & 2 Clients

Hello; I work now with a team which has based her "applications" on the following schema: 1 NFS client C1 (linux redhat 5) writes a file fic.dat on a NFS SERVER S (RH 5) Another NFS client C2 is waiting for the same file fic.dat (on NFS server S1), and, when "fic.dat" appears, then makes... (8 Replies)
Discussion started by: SolarMax
8 Replies

4. AIX

Open firmware state to running state

Hi Admins, I am having a whole system lpar in open firmware state on HMC. How can I bring it to running state ? Let me know. Thanks. (2 Replies)
Discussion started by: snchaudhari2
2 Replies

5. UNIX for Dummies Questions & Answers

Unmounting NFS idle clients from server

Hello World, We have a software repository server in our environment which we use as an NFS server. Now this has been going on well before I was hired. Now, I observed many users not unmounting the NFS resources after their use. I ran showmount and it showed 513 current sessions. :wall: Is... (7 Replies)
Discussion started by: satish51392111
7 Replies

6. UNIX for Dummies Questions & Answers

NFS / DAS / SAN / NAS - Which is best?

i've used only NFS and as many already found out, it can be or rather i should say, it is very unreliable. based on the collective experiences of the members on this board, i would really appreciate it if someone can tell me what the next best file sharing method is? is it DAS? SAN? NAS? ... (1 Reply)
Discussion started by: SkySmart
1 Replies

7. Red Hat

Add directory to path permanently

I ssh in and am trying to add a directory permanently to $PATH in centos 7 and having issues. My current $PATH is echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin but when I do a sudo nano ~/.bashrc # .bashrc # User specific aliases and functions alias... (7 Replies)
Discussion started by: cmccabe
7 Replies

8. Shell Programming and Scripting

Solaris 9 Home Directory, Two Machines Sharing a NAS

Good Morning, I have 2 Solaris 9 machines sharing a NAS, and need to have users to be able to log in from the 2nd machine and get to all of their files on the NAS that were created on the 1st machine. So far its working ok, but when users log in to the second machine, their user IDs show... (20 Replies)
Discussion started by: Stellaman1977
20 Replies

LEARN ABOUT PHP

mount.nfs

MOUNT.NFS(8)						      System Manager's Manual						      MOUNT.NFS(8)

NAME

       mount.nfs, mount.nfs4 - mount a Network File System

SYNOPSIS

       mount.nfs remotetarget dir [-rvVwfnsh ] [-o options]

DESCRIPTION

       mount.nfs is a part of nfs(5) utilities package, which provides NFS client functionality.

       mount.nfs  is  meant to be used by the mount(8) command for mounting NFS shares. This subcommand, however, can also be used as a standalone
       command with limited functionality.

       remotetarget is a server share usually in the form of servername:/path/to/share.  dir is the directory on which the file system	is  to	be
       mounted.

       Under  Linux  2.6.32  and  later  kernel  versions, mount.nfs can mount all NFS file system versions.  Under earlier Linux kernel versions,
       mount.nfs4 must be used for mounting NFSv4 file systems while mount.nfs must be used for NFSv3 and v2.

OPTIONS

       -r     Mount file system readonly.

       -v     Be verbose.

       -V     Print version.

       -w     Mount file system read-write.

       -f     Fake mount. Don't actually call the mount system call.

       -n     Do not update /etc/mtab.	By default, an entry is created in /etc/mtab for every mounted file system. Use this option to skip making
	      an entry.

       -s     Tolerate sloppy mount options rather than fail.

       -h     Print help message.

       nfsoptions
	      Refer to nfs(5) or mount(8) manual pages.

NOTE

       For further information please refer nfs(5) and mount(8) manual pages.

FILES

       /etc/fstab	 file system table

       /etc/mtab	 table of mounted file systems

SEE ALSO

       nfs(5), mount(8),

AUTHOR

       Amit Gud <agud@redhat.com>

								    5 Jun 2006							      MOUNT.NFS(8)
All times are GMT -4. The time now is 07:38 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy