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 ...

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1answer
222 views

Does Practical NFS Authentication for RPCSEC_GSS Exist Other Than Kerberos?

Most of the reading I have done suggests that RPCSEC_GSS can be set up using Kerberos, but we don't already have a Kerberos server set up. I had read there were other auth methods like LIPKEY that ...
0
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1answer
589 views

NFS server refusing hostname that is allowed

I can't get a client to mount an NFS share that is being exported using a wildcard domain name. Setup: The NFS server is running DNSMasq for DHCP and DNS. the NFS export file has /export ...
2
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0answers
52 views

What is the typical access time for reading a 100KB file over a LAN from an NFSv4

Would it be right to compute it as the network time (2ms) + disk seek and block read (10ms) ~= 12ms? Would that be the correct order of magnitude? interested in the response time, not absolute ...
0
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1answer
152 views

Dealing with network congestion

I'm adding new centralized storage on a linux server on a private GBE LAN. There are about a dozen client machines which in the past have done NFS v3 mounts over TCP. At times the LAN gets congested ...
1
vote
1answer
76 views

Comfortable sharing of files across internet [closed]

I would like to share files to a number of machines spread in LAN and WAN. These are the requirements: (priority: intermediate) Should just work in Windows/MacOS without additional (or very little) ...
2
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4answers
29k views

Can't mount nfs volume - time out

I have an NFSv3 export from a Linux fileserver which used to mount fine. The fileserver had to go down for hardware maintenance. After bringing the server back up, the Linux client can no longer mount ...
0
votes
2answers
3k views

How to mount an NFS share in a VM guest?

We have a machine with Win7-x64 installed. On this machine, with VirtualBox, we're running a guest Fedora-x64. We've defined an NFS share on this Fedora instance. Here is the entry in /etc/exports: ...
1
vote
1answer
561 views

NIS login: one user account multiple home directories possible?

I have a network of linux clients and servers that are used for numerical computations; and I'm using NIS for user authentication. After a successful login, every user lands in her / his home ...
7
votes
3answers
1k views

Recommendations: configuring a 10GbE NAS stack for virtualisation storage

I'll try as hard as I can to word this so it is not considered a shopping list. We have been successfully running a dev/test ESXi environment for some time, with a couple of Dell PE2950III servers ...
0
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1answer
515 views

properly setting up shared images nfs mount for apache

I am trying to figure out the best way to set up an NFS server so that my Apache servers which have a shared images mount can create images there. Here is the current configuration on the nfs server ...
7
votes
3answers
889 views

Permissions are not taking effect with Kerberised NFSv4 on FreeBSD

I'm currently trying to set up an NFSv4 server on FreeBSD. I have extensive experience with doing this on other Unices (Solaris and Linux), but I'm fairly new to FreeBSD. My goal is to achieve the ...
0
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2answers
332 views

check nfs over ssh is mounted

I have forward remote nfs port in local machine through ssh tunnel(forwarding 2 ports), using autossh for make persistent connection: root@remote.machine:~#autossh -v -M 0 -q -f -N -o ...
2
votes
1answer
918 views

run nfs server version 3 only

I'm a RHEL guy, and new to debian/ubuntu, I have just setup an nfs server, and when I mount a share on a client, it uses version 4, how can I get the server to run with nfs version 3 only? PS: our ...
0
votes
2answers
3k views

MySQL with NFS as datadir on CentOS

I'm trying to set up MySQL using a NFS mount as datadir on CentOS. When starting mysqld while using a mount I get this error: chown: changing ownership of '/srv/mysql': Operation not permitted I ...
3
votes
1answer
6k views

NFS client has unbalanced read and write speeds

I've got a NetApp as my nfs server, and two Linux servers as the nfs clients. The problem is that the newer of the two servers has extremely differing read and write speeds whenever it is doing read ...
0
votes
2answers
624 views

OpenBSD Apache configuration: NFS mount

I have a NFS mount at /mnt/web/ on OpenBSD 5.2. How can I mount this so it's accessible to the web? Currently I'm soft linking it to /var/www/web ln -s /mnt/web /var/www/web I've added an alias ...
0
votes
1answer
818 views

Dual Linux NFS Server Failover - nfsv4leastime / nfsv4gracetime

first time here posting, i hope i won't do many mistakes. I've a setup with 2 NFS server. They're using corosync/pacemaker + drbd to offer active/passive nfs server. Distro used is Ubuntu latest LTS ...
3
votes
2answers
6k views

How to change 'Advertised pause frame use' and autonegotiation setting on gigabit NIC

I'm investigating some poor nfs performance on a new server, as compared to an old server. Both the old and the new server are nfs clients, and they connect to the same exact NetApp nfs server. My ...
1
vote
0answers
2k views

nfs: kernel server not accepting mount (rpcinfo: RPC: Timed out)

I have an nfs-server that halfway hangs now and then. On server l this works: # uname -a Linux l 3.2.0-0.bpo.1-amd64 #1 SMP Sat Feb 11 08:41:32 UTC 2012 x86_64 GNU/Linux # showmount -e l Export list ...
4
votes
4answers
10k views

Flush-0:n processes causing massive bottleneck

I have a LAMP cluster that shares files via NFS and occasionally one of them will be stricken for a while when mysterious flush processes start appearing. Can anyone help me? The only way to resolve ...
0
votes
3answers
1k views

Using NFS-root with bonded interfaces

I would like to configure our servers to boot with an NFS-root with two bonded interfaces. I managed to successfully set up the NFS-root with one network interface using a NFS-root enabled initrd ...
3
votes
1answer
7k views

When a samba server shares NFS4 mount directory, window clients cannot copy file. ERROR: 0x80070021

The error reported by windows client is like this ERROR: 0x80070021 The process cannot access the file because another process has locked a portion of the file. I google it and hit samba bug report ...
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0answers
558 views

Apache long running download fails

I am running an Apache2 web server (Server version: Apache/2.2.17 (Ubuntu)) on Ubuntu 11.04. I have an issue where long running downloads will fail after awhile. I have clients with slow connections ...
5
votes
1answer
428 views

NFS soft mount timeout too slow

We have a VERY busy cluster of servers. Our 16 app servers serve our application off of a local SSD on each machine, but they also process images which are then served off of our cdn. Because of this, ...
2
votes
1answer
598 views

Is there a way to share via SMB a filesystem mounted via NFS without disabling SElinux?

I have two CentOS hosts. The first is NAS and the second one is a diskless SMB server. The NAS server share folder via NFS and secure Ethernet connection with SMB server. SMB server shares content to ...
3
votes
2answers
6k views

Can not mount NFS from server on local network

I set up my NFS server without doing any bigger changes in configuration files. After that I added these entries to /etc/exports(both paths are valid) on server(192.168.1.11): /export ...
1
vote
1answer
368 views

Scientific Linux: soft lockup on quad opteron system

After an impressive uptime of 550 days without trouble our quad opteron system turned into a corrupted system a few days after I mounted an nfs-share from a FreeNAS-box. Ongoing sessions remained ...
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0answers
104 views

Preventing NFS Denial of Service

I have a NFS4 server running Ubuntu 10.04 Server, on an enterprise environment with 50+ clients. Overall, everything works fine, but from time to time, some client starts making +1000 NFS operations ...
3
votes
1answer
849 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 ...
2
votes
1answer
1k views

'No space left on device' on mounted NFS device

On NFS Server: Filesystem 1K-blocks Used Available Use% Mounted on /dev/xvdf2 103212320 85090308 12879132 87% /export18 On Client Server: ...
2
votes
1answer
292 views

A thin client running Linux in a wireless network environment

I am the sole IT person for a small private school. The school has about 60 PCs. All PCs are on a wireless network; there's no Ethernet network in the building. I would like to migrate the school ...
0
votes
1answer
77 views

Environment Setup [closed]

My company is starting to feel the pains of its developers not being on the same page. ie some develop on windows, some on ubuntu, etc... and then code lives on CentOS and we start to get problems ...
0
votes
1answer
829 views

Linux-HA Pacemaker.. NFS Resource starting “unmanaged”

My cluster I've been working on just starting acting up out of no where... It looks like I'm having an issue with the exportfs resource. Any ideas on how to troubleshoot this? I can find nothing for ...
0
votes
2answers
3k 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 ...
0
votes
1answer
764 views

Does Bonding mode 0 works on Cisco SG100 and achieve 2GB speed for NFS?

I am planing to buy a switcher to link 2 servers each with 2 NICs (Intel Corporation I350 Gigabit Network Connection). I read that "balance-rr is the only mode were one single TCP connection can ...
1
vote
0answers
254 views

Samba is faster than NFS when accessing from Mac, any reason

Refer to this question (closed): Sharing folder from Linux to Mac, Samba or NFS?, most people suggested that NFS is faster and therefore I did a quick test: MacBook Pro / OSX Lion Ubuntu 12.04 ...
1
vote
5answers
2k views

Sharing folder from Linux to Mac, Samba or NFS? [closed]

When I need to access (read/write) to a folder of many files under Linux from Mac OSX, there are two options: Install Samba in Linux and share as Windows share Share via NFS Which one is the ...
1
vote
1answer
370 views

How to create multiple shares from Debian using NFS that can be mounted in windows 7

I have a Debian machine that I'm using as a media server/file server. It's running Debian wheezy. I have a raid volume i've set up using mdadm. All working fine. I've set up some primitive FTP ...
1
vote
2answers
112 views

Secure NFS implementation (or other solution for mounting home directories on multiple servers)

Is there any chance to secure NFS so it can authenticate mount requests more than by IP address? Of course I am aware that NFS by design does not allow it but I think of any wrapper for it or may be ...
7
votes
2answers
5k views

How to do client side NFS failover in Linux?

I have a CentOS 6.3 client that needs to access NFS storage. There are two NFS servers that serve up the same content stored on a SAN with a clustered filesystem. How do I set up CentOS to failover ...
3
votes
1answer
483 views

Using NFS for scalable PHP/MySQL web application

Here's the situation: I have a PHP/MySQL web application that accepts user uploads (pdf files). From these pdf files' pages a preview image is made on the fly and presented to the web app's users. ...
1
vote
0answers
107 views

autofs mounts entire direct map

I've got a auto.master with an indirect map and a direct map. /home /etc/auto.home --timeout 60 /- /etc/auto.foo --timeout 60 auto.home: jwells -rw,noquota,intr server:/vol/home/jwells ... ...
1
vote
1answer
1k views

NFS server setup: 192.168.1.0/24 vs 192.168.1.*

I have my nfs server running on 192.168.1.99 box, and I have my /etc/exports configured using /myshare 192.168.1.*(rw,sync,no_subtree_check) I was able to mount nfs from 192.168.1.50 client box. ...
1
vote
2answers
5k views

Determining cause of high NFS/IO utilization without iotop

I have a server that is doing an NFSv4 export for user's home directories. There are roughly 25 users (mostly developers/analysts) and about 40 servers mounting the home directory export. ...
4
votes
1answer
2k views

Why does the “nocto” NFS mount option in Linux not prevent flush-on-close?

I've been learning about the close-to-open policy of NFS, which causes each file to be flushed to the server as it's closed, to ensure consistency across clients. (See ...
3
votes
3answers
13k views

centos 6 nfs: logs not showing anywhere

Can someone please tell me where NFS logs in centos 6? Or perhaps where I can tell NFS to send logs? At the present time, there appears to be no such setting. Trying to get the thing to work without ...
1
vote
3answers
2k views

rsynced files not getting proper ACL

I use rsync (rsync-3.0.6-5.el6_0.1.x86_64 on Scientific Linux 6) to transfer files from a VFAT disk to an NFS mounted ext3 file system. I have ACLs set up on the ext3 system and all works as expected ...
5
votes
1answer
1k views

Intermittent NFS lockups on Isilon cluster

We have an Isilon cluster with 8 IQ 12000x nodes which exports storage via several NFS shares for a handful of Linux and Solaris clients. There is a Linux system that has one of these NFS filesystems ...
0
votes
1answer
736 views

KVM guest storage difference with NBD and NFS

I am setting up my own little private cloud for my own use maybe for a project or to. I am using linux kvm on debian 6. I have 3 servers 2 of them for compute nodes and 1 storage node. I would I have ...
5
votes
1answer
7k 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 ...