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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NFS lock not working properly

I'm getting the following error on an oracle database. ORA-27086: unable to lock file - already in use It tries to lock a file that resides in an NFS mount. The NFS is on a loopback setup (long ...
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33 views

How to make NFS accesses time out much faster

We have a load-balanced web app that serves some images off an NFS mounted drive. When the NFS server goes down, it ends up bringing all of the web instances down. Currently the volume is mounted ...
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1answer
41 views

Disabling shadow copies on a NFS share folder

I want to disable shadow copies being created on a specific Windows NFS share folder which is being used by an ESXi 6 server for virtual machine backups (via xsibackup). The reason for wanting to do ...
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1answer
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NFS mount mounted inside another NFS mount disappears randomly

I have quite an odd issue where my nested NFS mounts just disappear randomly from time to time. The fstab entries look somewhat like this: nfs:/home /home nfs ...
2
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1answer
143 views

Where can i find a specification for the Network Lock Manager v4 protocol?

I am trying to debug locks interactions between NFSv3 clients and server and i am unable to correctly interpret their exchanges (using wireshark). rfc1813 NFS Version 3 Protocol Specification says ...
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1answer
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CentOS 5.4 NFS v4 client file permissions differ from original files & NFS Share file contents

Having a strange problem with NFS share and file permissions on the 1 out of the 2 NFS clients, web1 has file permissions issues but web2 is fine. web1 and web2 are load balanced web servers. So ...
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29 views

NFS on Ubuntu Server 14 LTS with iptables

I have a virtual server with Ubuntu Server 14 LTS. The provider has offered me NFS storage which I wanted to mount on the virtual server: mount -t nfs 192.0.2.4:/space /mnt/nfs However, I cannot ...
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1answer
46 views

rsync hanging up reproducable on the same file while copying to nfs share

For the last two days I try to backup my disc to an NFS share. But after a while rsync is hanging up itself. Every time on the same file. But if I exclude the file it'll hangup on the next file. So it ...
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15 views

nfs-kernel-server keeps failing in Ubuntu

I'm trying to create NFS share in Ubuntu 14.04 strictly following this tutorial: https://help.ubuntu.com/community/SettingUpNFSHowTo. root@srv:~# service nfs-kernel-server start * Exporting ...
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2answers
19 views

Prevent root in linux from changing folder permissions in GPFS filessystem

I have created a NFS export in a GPFS/SpectrumScale filesystem I created. I have enabled AD based authentication with our domain. Everything works. The NFS export was created with NFS4. The NFS ...
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1answer
15 views

Unable to mount NFS export unless I sudo to root

I created an NFS export on a GPFS/SpectrumScale filesystem I set up. I tested the NFS export on a xLinux, pLinux, z/OS and AIX succesfully. I then enabled AD based authentication on the NFS export ...
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2answers
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Mounting NFS3 using Kerberos and AD

I've got a Linux server (Centos 5.6) that needs to automount home directories from a Windows (Server 2008) NFS share using Kerberos. The share mounts (with the nobody user and group) if authentication ...
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12 views

OS X 10.10 Mail.app - preferences resetting themselves

I cannot change the preferences for Mail... if I select a different setting, it instantly reverts to what it was before. ls -l Library/Mail/V2/MailData shows that I own all the plists, they're ...
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1answer
12 views

Write on an unavailable nfs share

We have a legacy application which writes files on an nfs share. Some days ago that nfs share could be down and we have some missing files. According to the application's assistance when the nfs ...
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1answer
1k views

NFSv3 + ACL: mask is gone on clients

I'm sharing a NFS folder among a user group. The default umask on the clients is 0700, and this is a problem because newly created files won't be readable/writable by another users. So, I'm using ...
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41 views

How slow can be a QCOW2 vm disk (proxmox/KVM) over NFS (dedicated 1Gbit)?

I'm running 3 proxmox 3.4 nodes using NFS shared storage with a dedicated 1GB network switch. root@lnxvt10:~# pveversion pve-manager/3.4-11/6502936f (running kernel: 2.6.32-43-pve) root@lnxvt10:~# ...
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1answer
1k views

ZFS, NFS and Nexenta

Is this message familiar to someone ? zfs-clu-01a rpcmod: [ID 851375 kern.warning] WARNING: svc_cots_kdup no slots free zfs-clu-01a last message repeated 75220 times We have a lot of trouble ...
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9 views

Crashing NFSv3 server locks client shares

I have a NFSv3 server running on NetBSD 7. There is a Linux (3.16.0) and an OpenBSD (5.8-stable) box connected to it. When the server crashes the clients are unable to unmount the shares. The shares ...
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12 views

OS X 10.10 hard-coded absolute paths to network home directory

We have our users home directories on NFS servers. In the past, when we used 10.7, this was just a little problematic... every now and then, either from someone logging in at two different machines ...
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1answer
2k views

NFS mounts not visible for other users in system

Recently I faced an issue of limited visibility of mounted NFS shares on windows 2008 server. Situation is like this: as user A I have mounted NFS share (from linux server) as User A I'm executing ...
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2answers
1k views

Systemd: start a unit after another unit REALLY starts

In my particular case I want to start remote-fs unit after all glusterfs completely starts. My systemd files: glusterfs target: node04:/usr/lib/systemd/system # cat glusterfsd.service [Unit] ...
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1answer
1k views

GETATTR issues with linux and netapp

We're having an issue with our linux systems connecting to our netapp via NFS. The read/write IOPS are only around 1000/s but the GETATTR calls are almost 10,000! I found this bug ...
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2answers
15k views

How can I remount an NFS volume on Red Hat Linux?

I changed the user id of a user on an NFS client that mounts a volume from another server. My goal is to get the 2 users to have the same id, so that both servers can read and write to the volume. I ...
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1answer
2k 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 ...
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28 views

How to set up automount from a Mac to a Linux server

I've been trying to solve a rather simple problem: my server runs Debian there is a user A on the server that belongs to a group G (both 1001) my client runs OSX there are users A and B on the ...
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3answers
3k views

NFS Over OpenVPN: Top Performance Boosters

I have two VPS's - One is running 2008 Server R2 and the other is a Ubuntu 12.04 installation. I am using the Windows VPS for RD sessions for Quickbooks and a couple other apps and using the Ubuntu ...
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2answers
1k views

NFS on Btrfs on multi-devices .vs. Glusterfs on distributed-volume?

I considering a storage for Email. This storage system run on my own private cloud (already replicated), then i does not care about replication. I'm thinking about 2 options: 1- I will create few ...
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0answers
17 views

Debug slow lan (ssh, nfs) file transfer

I've got two linux boxes attached to a gigabit switch. They both have gigabit NICs, cables are cat7. Testing the network with iperf shows a fast connection but transferring files with rsync, scp, or ...
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0answers
14 views

Usermapping on Ubuntu with a Windows NFS server

First of all the idea of what I want: I have a ubuntu server (name: leda) with an OpenLDAP server in combination with a Samba server, which "emulates" a Windows domain. Now I have a second server ...
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0answers
24 views

Wrong permission when accessing ZFS snapshot over NFS (Solaris server, Ubuntu client)

TL;DR: I don't understand why I can access one file but not an other (in the same directory), although they appear to have identical permissions. I have an NFS server running Solaris 10 10/08 and a ...
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1answer
45 views

how to make a Virtual ip on a 2 nodes cluster

i have a specific question, her's my situation : 1- 2 vms with drbd - pacemaker - corosync - NFs - here's my crm configuration : node san1 node san2 primitive drbd_res1 ocf:linbit:drbd \ params ...
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1answer
18 views

fstab entry to mount NFS with password

i need mount at boot a disk using NFS, to mount manually from console i type: mount //192.168.0.1/NASShare -o username=administrator,password=pass /mnt/NAS To /etc/fstab i added this line: ...
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41 views

sudo NFS SUID not working

Today I decided to move my NFS files from an ext4 HDD to an ext2 HDD using mc. Since then I am having trouble running the sudo command on all clients. When I try to run it I get an error saying ...
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1answer
40 views

NFS in Windows 7 Professional

Can I have and use NFS in Windows 7 pro? I tried downloading and installing it on Windows 7 Enterprise and it appears to work but I had no such luck with pro, I can't even download.
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2answers
31 views

Using Glusterfs Dist-Replica Storage Pool for Hyper-V Virtual Machine Storage

Am chasing down some information regarding an upcoming project. So Basically we have a large Glusterfs Dist-Replica Storage pool running on ubuntu and we want to have several virtual machines running ...
4
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 ...
21
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9answers
26k views

Unmount a nfs mount where the nfs server has disappeared

Server A used to be a NFS server. Server B was mounting an export of that. Everything was fine. Then A died. Just switched off. Gone. Vanished. However that folder is still mounted on B. I obviously ...
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2answers
1k views

FreeBSD 10: NFS unable to export folder

I am unable to export a folder using NFS. /etc/exports /storage/test -maproot=nobody client /storage/test1 -ro -maproot=nobody client /storage/test2 -ro -maproot=nobody client The first folder ...
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1answer
1k views

Mounted NFS directory not writable by Apache / PHP

Need some help here with NFS. Here's what I have (all servers running CentOS 5.6 with SELinux): 172.17.20.1 - Primary server with static IP. Varnish redirects requests to the web servers. 172.17.20.2 ...
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votes
1answer
21 views

showmount -e fails from one node

When I run: showmount -e <IP> rpc mount export: RPC: Unable to receive; errno = Connection reset by peer mount <IP>:/path /mnt mount.nfs: Connection reset by peer But mount -t nfs -c ...
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2answers
51 views

Cannot start NFS: Not starting NFS kernel daemon: no support in current kernel

I installed NFS on a new Debian7 install. I did: apt-get install nfs-kernel-server add folder to share to /etc/exports: /home/share *(rw,sync,no_root_squash) service nfs-kernel-server start But ...
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1answer
2k views

Amazon Linux AMI for NFS between multiple EC2 servers

So I've been trying to create a Dropbox like system to allow multiple EC2 instances to work with the same files. I'm writing the programs that actually modify the files myself, and I'm not worried ...
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votes
1answer
1k views

How to force use of tcp instead of udp for rpcbind?

I'm trying to use tcp/111 for rpcbind under Debian Wheezy instead of udp/111. The portmap in Squeeze uses tcp/111 without any special configuration, but Wheezy fails. Even numerous sites (as well as ...
4
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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 ...
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1answer
2k views

Netboot Debian (wheezy) from NFS v4

Is it possible to boot Debian Wheezy from NFS v4? Bootwing with NFS v3 works just fine. NFS v4 not. This is in my /etc/exports: /nfs ...
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1answer
742 views

How do I get NFS on Linux to export a folder to OS X with OS X's user IDs so I can cp -a from Linux to OS X?

I have Ubuntu GNOME 15.10 on one computer and OS X 10.11.2 on another. I want to migrate files from the Ubuntu installation to the OS X installation but preserving permissions. Currently the strategy ...
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2answers
2k 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 ...
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1answer
1k views

Ubuntu client can't mount Nexenta NFS

I have a Nexenta storage box (Solaris), which exports an NFS share. Mac OS X and older Ubuntu clients can mount the NFS share just fine without any special options. Later version of Ubuntu simply ...
2
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2answers
1k views

Autoscaling and NFS Server

I have a WebServer say WS-1 and a NFS server say NFS-1 setup on AWS. WS-1 is being managed by an elastic load balancer and also autoscaled. It also has an EBS mounted on /var/www which contains all ...
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3answers
356 views

Rsync hangs: expand file_list pointer array to N bytes, did move

Rsync is going into "interruptible sleep" mode after transferring some files from a local folder to a NFS folder. The folder I am trying to backup contains more than 180gb of data. This is what rsync ...