Network File System (NFS) is a network file system protocol originally developed by Sun Micro systems in 1984, allowing a user on a client computer to access files over a network in a manner similar to how local storage is accessed. NFS, like many other protocols, builds on the Open Network ...

learn more… | top users | synonyms

-1
votes
1answer
18 views

Mount large nfs folder on small server - is it possible?

For example, we have: Server A with 30 Gb disk space Server B with 500 Gb disk space. It has /media folder (100 Gb - it's more, than whole A server disk space) I want to mount /media on server A. ...
1
vote
1answer
94 views

High availability NFS

We're considering hosting a web application on Amazon AWS. I've drawn a proposed setup for it, which I will try to summarize in a few lines: The web application is served from webservers in 3 ...
0
votes
1answer
42 views

email server redelivers emails on NFS remount

I am running a postfix/dovecot on debian server with virtual clients on a NFS based maildir backend. My problem is that every once in a while the NFS connection is reset and my clients are receiving ...
0
votes
0answers
52 views

NFS client mounts pointing to the same host directory

So we have a single host instance on EC2 with two EBS volumes attached. When we mount the shares on the clients both shares are pointing to the same host directory even though they are defined and ...
0
votes
2answers
470 views

limit the speed of writing files to NFS

CentOS 5.6 NFS is mounted on the server for backup disk space. When the backup job started, it could reach 80MB/s and we really do not expect it took so much bandwidth. So i need to find a way to ...
1
vote
0answers
74 views

How Do I Stop NFS Clients from Using All of the NFS Server's Resources?

I have a v4 NFS server running on Ubuntu 12.04LTS. It is the main repository for the web assets that four external nginx webservers mount to serve up to site visitors. These client servers connect ...
0
votes
1answer
32 views

Fedora nfs mount disappears

I have a small host running Fedora 18 (3.6.11), with nfs server set to serve /mnt/dir. The problem on the client running Fedora (3.11.6) after just a minute or so the mount disappears. SELinux is ...
1
vote
1answer
114 views

How Do I enable Safe Asynchronous Write With NFS?

The NFSv3 documentation talks alot about the concept of "safe asynchronous writes" (last bullet of A1): http://nfs.sourceforge.net/#section_a This is NOT referring to the sync/async option in the ...
0
votes
0answers
65 views

How to get more NFS packet details from Wireshark?

How can I get Wireshark to give me details about NFS packets at this level of granularity? (as exemplified here here) Specifically, I am interesting in looking at the the "Stable" option toward ...
0
votes
0answers
39 views

How can I map a known sid to a user

I'm making connections to a Windows server with unix through NFS. When I write files, they are showing up with four specific sids, S-1-5-88-[1-4]-xxx. Since these are predictable and known, is there ...
1
vote
2answers
71 views

Watching when a file is created on network folder in linux

I am trying to figure out a way to notice when a certain file is written to on the network folder mounted. I am aware that one can continuously probe the location to see if it has been created but ...
3
votes
3answers
132 views

Transfer between two NFS shares on the same machine

I have one machine that exports two directories, each on one physical hard drive. When files are moved between these two shares, does the data transit on the network entirely? If so, is there a way ...
0
votes
1answer
96 views

KVM permission denied on qcow2 disk over NFS

CentOS 6.3 running libvirt 0.10, trying to access/run a vm using a qcow2 on a Windows Server 2008 NFS mount. I tried nfsvers-3 when mounting but not luck, I get permission denied, presumably because ...
3
votes
1answer
552 views

nfs nlockmgr timed out

thanks for reading me and helping me ! I got a NFS problem. It's not a permanent problem it comes and goes. Sometimes (very often), the clients using the mounted partitions are frozen when they're ...
1
vote
3answers
94 views

Distributed filesystem for storing temporary files

We have a cluster of web servers that currently stores temporary files (that have been uploaded by users) on a central shared filesystem. The limitation being that anytime the server containing the ...
1
vote
2answers
377 views

Removing and copying files slow on NFS folder

I have a server that hosts images and allows access to one directory for one client over NFS. The directory contains about 70K images and is 12GB big. When I execute commands like cp or rm on the ...
1
vote
0answers
1k views

Synology DSM4.3 with Kerberos and NFSv4

According to the press releases of Synology DSM4.3 can do NFSv4 and Kerberos. Actually, in the Tab with NFS settings, there is a button for Kerberos settings. But I cannot find any guidance anywhere. ...
4
votes
1answer
2k views

How to NFSv4 share a ZFS file system on FreeBSD?

Using FreeBSD 9, and created a ZFS file system like so zfs create tank/project1 zfs set sharenfs=on tank/project1 There are many howto's on setting up NFSv3 on FreeBSD on the net, but I can't find ...
0
votes
1answer
36 views

mounting a linux network shared directory onto a directory of another linux server

I apologize in advance if this a noob question. I have two servers, NFS Server: usanfsd01 LINUX Server: usalnxd01 I've to mount the usanfsd01:/nfs/data directory onto the usalnxd01:/lnxwd directory. ...
3
votes
1answer
145 views

NFS v4 ACL inheritance problems - “i” flag set but not wanted

What I am trying to is add an NFS v4 ACL that allows a directories, child and grandchild, great grandchild etc directories and files to inherit a delete ('D') flag under linux. The underlying file ...
1
vote
2answers
102 views

NFS mount with file locking not possible any more after move to new subnet: statd timed out, lockd cannot monitor

I'm operating an Ubuntu 10.04 NFS Server with LDAP user authentication on a virtual machine in Subnet A. The server exports the users home directories with nfs v3 to ubuntu clients in subnets B and C. ...
0
votes
1answer
58 views

Sharing an EC2/EBS RAID10 Array using NFS

I created a 10 disks RAID10 using EBS on AWS EC2 using mdadm on a ubuntu 12.04.2 LTS instance. Let's call this instance A. It works fine and I can create files and folders perfectly in the volume. I ...
1
vote
1answer
245 views

Installing NFS on windows 8 enterprise

I am having issues installing installing NFS for windows 8. Specifically when i run Ocsetup ServicesForNFS-ServerAndClient;ServerForNFS-Infrastructure;NFS-Administration;ClientForNFS-Infrastructure ...
4
votes
4answers
11k views

What does 'no locks available' mean?

I'm trying to commit to a SVN server. On the server the subversion repository is NFS mounted. When doing a commit, I get this error message: svn: Can't get exclusive lock on file ...
2
votes
1answer
399 views

How to achieve multiple NFS/TCP connections to the same server?

I'm trying to maximize the NFS/TCP bandwidth between a Linux client and a single NFS server over a 10Gbps link. Although each NFS mount has its own device (major/minor), everything comes down to a ...
0
votes
1answer
88 views

Upgrading NFS/NIS Shared `/home` Setup

I am currently managing a network of workstations running different flavours of Ubuntu. The server (also Ubuntu) runs a NIS server and exports a shared /home directory over NFS (in v3 compatibility ...
1
vote
1answer
548 views

KVM + NFS poor disk performance

Situation: We have an Ubuntu server that hosts three VMs using KVM. All guests as well as the host need to access the same files in a certain subfolder of /var . Thus, the subfolder is exported via ...
0
votes
1answer
678 views

how to check if NFS is installed or working RHEL

I have put the following line on /etc/exports /media/drive/fedora *(ro , sync) then i did exportfs -a now my hostname is localhost.fedora i want to install the linux from NFS but when i ...
3
votes
1answer
111 views

Poor NFS Performance Using Multiple Disks

I have a server system running Ubuntu 12.10 with 12 disks attached. I am sharing all of these disks on my 10 gigabit network using NFSv4. However, I am getting generally poor performance over NFS ...
18
votes
8answers
8k views

Analyzing Linux NFS server performance

I'd like to do some analysis of our NFS server to help track down potential bottlenecks in our applications. The server is running SUSE Enterprise Linux 10. The kind of things I'm looking to know ...
-3
votes
1answer
70 views

What are some unnecessary processes in Ubuntu 12.04? [closed]

So, I'm using Ubuntu 12.04 for my AWS instances and when I first start it up and look at the processes there seems to be a lot of things running that I'm not sure are necessarily needed for my ...
0
votes
0answers
97 views

No acl on nfs mount in RHEL6?

I have several RHEL6 machines. One is exporting an nfs mount to the rest. I have ACL's set on the server (set using setfacl -m), but none of the clients are seeing any of them. Here is my export on ...
0
votes
0answers
262 views

NFS Share with root for anonuid / anongid

I've exported a share from my server and set anonuid and anongid to be 0 (root). However, when I mount the share on the client, it doesn't appear my settings are working as I'm getting permission ...
-1
votes
2answers
51 views

Can I mount a share to an EMC array?

I would like to mount an NFS share to an EMC array enlarging it's capacity until we can expand the EMC environment. I have a cheap Synology with 12TB of storage I would like to use to expand it for a ...
0
votes
0answers
72 views

Is it possible to securely add an NFSv4 share to an ESXi Server?

I just wondered how to connect an NFSv4 share as storage extension to my ESXi. Since NFSv4 supports Kerberos, ESXi could use Username and Password to connect to the share, while no one else could ...
0
votes
1answer
209 views

Unable to map ubuntu NFS shared folder on windows 7 and windows server clients

Here is my problem: The NFS shared folder was working without any problem. All the machines of a small network could use it. But something happened few months ago(I have no idea, maybe some ...
2
votes
1answer
139 views

How to PXE boot multiple servers from a single NFS image?

I need to boot multiple servers via PXE boot. They are all going to run the same ramdisk (i.e. "default" in the pxelinux.cfg directory), and then they all mount a root filesystem over NFS. Then they ...
1
vote
0answers
104 views

HPC / EC2 - optimizing NFS for relialibility

In AWS-EC2, I've set-up a cluster of linux virtual machines made of an NFS fileserver and many clients. If the number of clients is above ~20, under heavy I/O, I am experiencing loss of file ...
0
votes
0answers
230 views

Puppet Operation not permitted on owner/group change

I'm running Ubuntu 12.04 with vboxheadless 4.2.10 and vagrant 1.2.7 to provision instances on a server. When I run vagrant up I get the following errors: err: ...
0
votes
1answer
66 views

dmcrypt container on nfs

I'm setting up an encrypted file storage on a remote server and I want to be able to use it transparently on my system. I want to be able to de-/encrypt them locally so that the server hosting the ...
1
vote
1answer
25 views

IO impact with symlinks

I have an NFS mount for web servers, I've moved log files to local storage to minimize IO load on NFS server but I've created symlinks for these logs (NFS share -> local storage). Is this still has ...
0
votes
1answer
351 views

NFSv4 with idmap

The following errors appear on the NFS server, could you please advise how I can fix this? Details: System: CentOS release 6.4, NFS: nfs-utils-1.2.3-36 # cat /etc/idmapd.conf [General] Domain = ...
0
votes
0answers
68 views

memory exhausted errors on nfs clients

Our image uploader application is getting timeouts. I can also reproduce the problem on the command line like this iresweb1:/home/ecom/var/shares/media/800x800 # \ls -f ls: memory exhausted and ...
1
vote
1answer
855 views

exportfs -u not unexporting directories?

So, I'm trying to programmatically share and unshare mount points via NFS. (I realize this may not be the best approach, but I'm working in someone else's code.) On my server, I'm exporting the ...
3
votes
1answer
108 views

Creating two nfs shares from same server, but when mounted, both point to same directory

I've got a group of server that need two nfs shares, a few servers need access to one of the shares and all of the servers need access to another. The NFS server is ubuntu 12.04 and the others are ...
0
votes
3answers
759 views

OS X Client & Ubuntu Server - Best way for client to access files on server?

I've got a local development web server running Ubuntu. I also have an iMac running OS X 10.6 which I use a client and is my development machine. I'm currently have Samba server installed on my ...
0
votes
1answer
57 views

Dovecot won't deliver the first mail to a mailstore on nfs share

I'm building a mail platform using Dovecot/postfix/MySQL/iredmail/etc. The business end is on Ubuntu 13.04, the mailstore is an NFS share on Ubuntu 12.04. Now when I try to send a mail to a new ...
0
votes
1answer
159 views

FOG Server NFS Issue

I am having an issue with the Free Open Ghost server. I set it up on Ubuntu server, and have Ubuntu mounting an SMB share to it's /images directory (my server has a small internal boot disk). Fog's ...
8
votes
6answers
32k views

mount.nfs: access denied by server while mounting

On my Ubuntu system, I have this line in /etc/fstab: myserver:/home/me /mnt/me nfs rsize=8192,wsize=8192,timeo=14,intr When I do sudo mount -a I get: mount.nfs: access denied by server while ...
0
votes
0answers
269 views

“Network Error - 53” while trying to mount NFS share in Windows Server 2008 client

CentOS | Windows 2008 I've got a CentOS 5.5 server running nfsd. On the Windows side, I'm running Windows Server 2008 R2 Enterprise. I have the "Files Services" server role enabled and both Client ...