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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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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412 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 ...
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1answer
179 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 ...
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131 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 ...
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2answers
167 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 ...
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1answer
81 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 ...
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1answer
212 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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1answer
526 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 ...
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2answers
61 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 ...
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1answer
409 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 ...
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1answer
1k 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 ...
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4answers
3k 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, ...
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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, ...
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1answer
689 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 ...
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148 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 ...
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23 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 ...
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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 ...
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1answer
133 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 ...
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1answer
118 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 ...
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3answers
924 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 ...
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2answers
750 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?
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150 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. ...
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1answer
315 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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125 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 ...
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1answer
1k 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 ...
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1answer
55 views

NFS delays renames but not writes?

I have some (6) boxes that have an NFS share mounted on which they write files. All run ubuntu 14.01 and the NFS server is a standard nfs-server from ubuntu packages. This works well. However, when ...
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2answers
782 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
3k views

NFS Client Issue on CentOS 6: rpcbind not listening on port 111

I'm trying to setup a NFS client on a new CentOS 6.6 server to an existing NFS server and am having problems that I cannot figure out. When starting rpcbind/nfs I get: # /etc/init.d/rpcbind start # ...
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1answer
28 views

Does it make sense to remove NFS from a simple web server?

Does it make sense security- and performance-wise to remove NFS on a simple server which has ~10 Wordpress websites? Or is simply stopping the services enough?
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1answer
379 views

Vagrant NFS shares in Fedora 21 blocked by firewalld

My NFS shares created by vagrant are being blocked by firewalld. The host is Fedora 21 and the client Debian 7.7. This is common problem that should be solved by opening the firewall for NFS as seen ...
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2answers
42 views

Is IPSEC used by default on Win7/'08-R2 NFS (TCP139/445&UDP137/138)

We'd like to share files through an Win08R2 EC2 instance with clients (Windows 7 machines) through the default NFS (i.e. avoiding 3rd party software like Dropbox/Aws-s3 etc.). Encryption at rest is ...
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1answer
330 views

How to tell mount.nfs to use rpcbind v3 or v4, instead of the older v2 (ie. portmapper)?

I would like to force my NFSv3 client to use rpcbind v3 or V4 (as described in RFC 1833) when communicating with the rpcbind (formerly portmapper) remote server, but I neither found a mount.nfs option ...
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3answers
35k views

Mapping UID and GID of local user to the mounted NFS share

I have a server with NFSv4. I am mounting contents of the home folder of remote user to local host. Able to read and write contents, but when I am checking ownership of files at the mounted volume ...
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0answers
63 views

NFSv4 ACLs on gpfs

I try to use NFSv4 over gpfs, but I'm get the following errors: # nfs4_getfacl file Operation to request attribute not supported. # nfs4_setfacl -e file Operation to request attribute not supported. ...
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1answer
102 views

Chain NFS sharing [closed]

We have a storage server which for some reason cannot be reached directly (and of course not in same network). So we thought that we need to create some kind of chain NFS sharing like; ServerA ...
2
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1answer
4k views

Windows Server 2008 R2 Server for NFS Anonymous Access

I have an NFS share on a Windows 2003 Server that is working perfectly with read/write access using anonymous access. I am moving to a Windows Server 2008 R2 machine and am trying to do the same. I ...
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1answer
58 views

What is the difference between rMB_nor/s, rMB_dir/s, and rMB_svr/s in iostat?

I'm trying to interpret the results of running the following command iostat -mnhyc It produces the following Filesystem: rMB_nor/s wMB_nor/s rMB_dir/s wMB_dir/s rMB_svr/s ...
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1k views

Doesn't NFSv4 have no_root_squash?

When I in /etc/fstab have nas:/tank/nobackup /mnt/nas nfs exec,nosuid,rw,bg,soft 0 0 then mount -a; mount gives nas:/tank/nobackup on /mnt/nas type nfs ...
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16 views

Kerberized NFSv4 share (deleted) after token expiry

I set up a NFSv4 server with Kerberos authentication and it runs well. However, some users stay logged in for long times such that they have to renew their tickets after some days. If during the time ...
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2answers
1k views

Troubleshooting an NFS server hanging after authenticated mount request

I need some advice on troubleshooting an NFS server problem on Scientific Linux (RHEL) 6.1. The log on the server shows that an authenticated mount request was made: Jan 13 16:30:02 ??? ...
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66 views

Disable file content/data cache for NFS?

I'm using NFS to share a directory between host (nfs-serer) and guest (nfs-client) system. I did not want to use KVM's preferred module 9p due to slow transfer speeds - NFS, does yield about twenty ...
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1answer
840 views

NFS share problems - RPC: fragment too large: xxxxx

We have a virtual server with an NFS share that is written to by other servers. Today the NFS share became inaccessible. The syslog was full off messages like this: RPC: fragment too large: 311176 ...
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1answer
1k 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
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1answer
1k views

Problems mounting Kerberos authenticated NFS share on CentOS 6.4

I'm trying to mount a Kerberos authenticated NFS share on a CentOS 6.4 machine. I have tried exporting the protected share from both another CentOS 6.4 machine and from our NetApp with the same ...
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1answer
2k views

What causes repeated linux NFS client side RPC credential refreshing?

Using nfsstat -c, I'm seeing a high "authrefrsh" (known as "newcred" on some systems) count on my NFS client pc for operations like ls and find on directories containing ~1000 files. This correlates ...
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1answer
45 views

Where is NFS data cached?

I mounted an NFS export and started a process that I expected to write a significant amount of data to the shared disk. The speed of the shared disk was so slow that I killed the process, but IO on ...
2
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1answer
425 views

NFS: How to allow a specific user to write in a NFS mount?

I wrote a Nagios check which is supposed to check the time it takes a server to write a file to one of it's mounts. The check is being run by user nagios. The NFS server is configured like so: ...
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3answers
149 views

Is is possible to live sync two network drives?

I have one NAS in India (active) and while other in US(passive). I want to sync the US NAS with that of India in real time (with permissible latency) I tried using RAID1 for this purpose, but I ...
0
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1answer
4k views

Which file sharing protocol (SMB/AFS/NFS/SMB2/SMB3) is best for an mixed client environment within an ad?

I'm just setting up freenas with ZFS and was wondering which file sharing protocol / data transfer protocol is the best to use? Has anyone experiences? I guess i have a very typical business setup. I ...
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9answers
2k views

Geographically distributed file system with preferred locality

I'm building a application that needs to distribute a standard file server across a few sites over a WAN. Basically, each site needs to write a lot of misc files of varying size (some in the 100s MB ...