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
4k views

mount: mount to NFS server 'IPADDRESS' failed: RPC Error: Program not registered

I've got two Redhat5/CentOS systems which share a folder. I'm trying to change the shared folder location, but I ran into this error on the machine on which the folder is mounted... How can I correct ...
2
votes
2answers
47 views

How to know when to properly use iSCSI, NFS or SMB?

I have a File Server running Windows Server 2012 R2. It has four 6TB Western Digital RED drives. I want to host my Hyper-V Machines, WSUS (Windows Server Update Service) content and WDS/MDT deploy ISO ...
2
votes
1answer
1k 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
896 views

NFS daemon not starting up with error message “Kernel does not have pseudo root support”

My nfs daemon is not starting up anymore. I see the following entries in the syslog: Sep 26 18:21:10 VOXWEBPRODDHNCGN001 mountd[3401]: Kernel does not have pseudo root support. Sep 26 18:21:10 ...
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votes
1answer
23 views

Fastest way to copy small files over secure network without regard for file mod times or size

I want to sync files in dir1 and dir2 (two different servers). I do not care if the file sizes or modification times differ. EXAMPLE: dir1 contains file1, file2, file3, file4, and dir2 contains ...
1
vote
0answers
66 views

Transparent data caching in multi-site environment

I need an advice on choice of the right technology for my problem. I have geographically distributed multi-site environment where there is one main site and a number of remote sites. Main site ...
4
votes
2answers
890 views

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 ...
0
votes
1answer
21 views

Stale NFS handle, but nothing is mounted

I have an nfs server (192.168.1.180) that is sharing a directory to my rapsberry pi (192.168.1.32). I have had this working before. Recently, the server went down - but not the client. After ...
1
vote
1answer
35 views

What is a good configuration for a zpool built from 8-10 SSD for a home file server exported via NFS?

So we have a bunch of SSD disks and would like to put them in a zpool on a Solaris 10 system. The file system will be exported via NFS to about 50 Ubuntu clients which will mount it as their $HOME. I ...
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votes
0answers
18 views

Groups in CentOS 5/6

I have 15 CentOS servers running a mix of version 5 and 6. Each of these servers are integrated with a Microsoft Active Directory with a tool called VAS/QAS (ventella Authentication Services /Quest ...
0
votes
1answer
354 views

existing files are “invisible” to some applications

I have a problem with accessing files on an ext4 file system mounted as type NFS on a Linux server running CENTOS 6.5. I know the files exist on this file system because I can see them when I ...
0
votes
1answer
35 views

Permission denied with nginx and nfs

I have two RHEL 7 machines. I have installed nginx and php-fpm and setup a nfs mount. I can read/write to the nfs mount without issues and I have another application server (Apache Geronimo) that is ...
1
vote
1answer
39 views

Unmounted directories still behave like mounted - NFS Server Ubuntu 14.04

I am working on two virtual machines, running Ubuntu 14.04. So, one VM is the server and the other the client. Here's what I've done till now: Server VM: sudo apt-get install nfs-kernel-server sudo ...
0
votes
2answers
53 views

Stop file being deleted on NFS mount

I have files stored on an NFS mount which I want to prevent being deleted. The use case is I have a demo version of a web application which uses the same images on every demo - when someone deletes a ...
0
votes
1answer
22 views

in-memory-cache of specific files from NFS

I have some diskless machines and they mount a disk through NFS4. I want the machines to maintain a cache of specific files in their own memory. The machines don't modify the files and only read them ...
0
votes
1answer
928 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 ...
0
votes
1answer
973 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 ...
2
votes
1answer
42 views

XenServer 6.2: reattach SR but all disks have no description

I have recently reinstalled XenServer on my server. All the VHD files were stored on my NAS via NFS, so I re-added the NFS SR after reinstallation. However, all my VMs seem to be missing, and the ...
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votes
0answers
16 views

nfs nfs4 referral differing/conflicting options?

nfs4 provides a referral option: /share *(rw,sync,refer=data@some_other_server) can anyone point me toward authoritative project documentation that addresses the matter of (possibly) ...
3
votes
4answers
2k views

XenServer and ZFS via NFS

I'm trying to connect a NFS share to XenCenter. The NFS server is a ZFSGuru distro (uses FreeBSD). The zfs volume was exported like this: /sbin/zfs set sharenfs="on" temppool/share According to ...
2
votes
1answer
1k views

Reconnect Attempts for CIFS share

I have a CIFS share mounted in the FSTAB on Ubuntu server, which connects to our NAS and works without issue. Last night we had an issue with the SAN for about 12 hours. We corrected the problem and ...
1
vote
1answer
352 views

NFS client does not pick up server after restart

EDIT : To summarize the issue, this is a problem with the NFS server changing IP address and the NFS clients not picking up the new address. I can see via tcpdump that the client still tries to ...
0
votes
2answers
33 views

How to find reason for hanging process (probably I/O related)

on Ubuntu 14.04 when I open a file browser or an "Open File" Dialog, the application hangs for about 5 to 10 seconds. I suspect this is due to some NFS requests. But how can I find out for sure? Is ...
4
votes
3answers
11k views

File locks on an NFS?

My server uses NFS (Network File System), and I'm unable to use PHP's flock() -function. Is there a way to lock files on an NFS or is there a need to do so?
6
votes
1answer
234 views

Configuring Synology NAS as freeIPA client

I'm attempting to deploy freeIPA in my company. The network is quite simple: < 10 FC20 (and FC21 beta) desktops < 5 FC20 servers (including the one with freeIPA) 1 Synology NAS DS1813+ (DSM ...
2
votes
1answer
43 views

NFS alternative

I'm running a storage server that has to mount home-dirs of different users at several (5) centos servers. The NFS storage server has direct Fibrechannel storage (with high speed, verified). When the ...
9
votes
4answers
2k views

Fault-tolerant NFS?

Probably a FAQ but I haven't found anything useful after a while of searching: Can I set up NFS in such a way that every single error (e.g. server CPU, hard disk, hd controller, network adapter, ...
1
vote
1answer
1k views

NFS and mounted subdirectories

I have two physical disks mounted as such: sda1 -> /mnt/storage sdb1 -> /mnt/storage/homes I've exported /mnt/storage as an NFS share. The client sees all of the contents of /mnt/storage, ...
0
votes
1answer
2k views

NFS compound failed for server foosrv: error 7 (RPC: Authentication error)

I'm setting up an Ubuntu NFS server with a Solaris 10 client. The basic configuration looks okay to me, and it was also working for some time. I'm getting an "RPC: Authentication error" message on the ...
0
votes
1answer
128 views

Fedora 21 NFSv4 mount hangs for a long time, then times out; showmount -e works

I have a fedora 21 server with the following /etc/exports: /mnt/scainet 192.168.1.0/24(rw,sync) On my client on the same subnet, connected to the server through a hub, I run mount -t nfs ...
0
votes
1answer
1k views

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 ...
0
votes
1answer
891 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 ...
2
votes
1answer
1k 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 ...
0
votes
0answers
45 views

ZFS on Linux denied access when accessing child dataset on NFS

This is on 12.04 LTS with the latest ZFS on Linux from the ppa. I have two a storage pool named data, and a dataset data/Other with different settings (e.g. compression). I set data to sharenfs and ...
0
votes
0answers
16 views

NFS: settings for a non concurrent environnement

We have a 100% non concurrent access to an NFS share. Each client accesses its own files, separated in directories. So a client will make read and write operations on its own directory, but will never ...
3
votes
3answers
3k views

Stale NFS handle

I have several xen guest OSs that get their root file system from NFS. I changed /etc/network/interfaces on some of them (on the nfs server) and then rebooted them. Now I get lots of 'Stale NFS ...
1
vote
1answer
122 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
27 views

nfs mount passwordless login

Setup: OS : CentOS5 node 1 : 172.16.1.1 sandbox1.local node 2 : 172.16.1.2 sandbox2.local The nodes have the hostnames in the hots file. Pinging to each other works fine. Problem: My home is ...
1
vote
1answer
1k 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 ...
1
vote
2answers
1k 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 ...
1
vote
1answer
8k views

“Stale NFS file handle” after reboot

On the server node, it is possible to access an exported folder. However, after reboots (both server and client), the folder is no longer accessible from the clients. On server # ls /data Folder1 ...
0
votes
1answer
972 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 ...
0
votes
3answers
724 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 ...
0
votes
0answers
3 views

NFS4 & VirtualBox: Ubuntu 14.04 host Windows 10 Techpreview client [migrated]

I have a host OS Ubuntu 14.04 (my main OS). I run a Windows 10 client inside VirtualBox. I wish for NFS4 to work between them, I cannot see the share in my Windows 10 client. I followed the following ...
2
votes
2answers
731 views

ESX or ESXi as FCoE or ISCSI or NFS target?

Is is possible to set up ESXi or more expensive ESX server as a storage target (FCoE, ISCSI or NFS, in that order) for other ESX servers? If so, how?
1
vote
2answers
1k 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: ...
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0answers
49 views

NFS Write Permissions — ls -l shows I have it; I actually don't

I have an NFS server serving several clients. Permissions work fine with all clients except one. The client mounts the nfs share fine, with permissions all correctly placed to the right users. ...
1
vote
1answer
272 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 ...
0
votes
0answers
52 views

rsnapshot: cp: preserving permissions – operation not supported

I am trying to use rsnapshot for backuping my server on mounted nfs filesystem, but it keeps failing on: /bin/cp: preserving permissions for `...': Operation not supported Backup configuration is ...
0
votes
1answer
674 views

Cachefilesd (cachefiles) everything seems to be set up, still not working

I'm trying to set up cachefilesd to work with my network folder shared using NFS. I have seemingly everything set up, however cachefilesd starts normally, however caching isn't functioning. Here is ...