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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I have to “fudge” a change in /etc/exports in order to get mount -a to execute, what's the issue?

Whenever I have to reboot server1, the only way I can get NFS mounts back up on server2 is to change one of the "fsid" integers in the /etc/exports file on server1. Otherwise, the mount -a command ...
2
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2answers
51 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 ...
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1answer
25 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 ...
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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 ...
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1answer
42 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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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 ...
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1answer
36 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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1answer
41 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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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 ...
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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) ...
2
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1answer
44 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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2answers
34 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
47 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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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 ...
0
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1answer
28 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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47 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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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 ...
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0answers
50 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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0answers
55 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
138 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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1answer
41 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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1answer
25 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
282 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
60 views

having trouble setting up NFS server on centos 6.5

Setup: Provider: Linode nfs server: a linode with centos 6.5 nfs client: a linode with centos 6.5 When I tried mounting mount.nfs: access denied by server while mounting x.x.x.x:/shared This is ...
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1answer
71 views

Linux fixed file size copy from Windows Server 2012 NFS share

Company is in the process of switching from hosting MongoDB on windows server 2012 to hosting on linux(ubuntu 14.04) Current backup and restore strategy involves copying all the data files via ...
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2answers
30 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 ...
0
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1answer
139 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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0answers
35 views

Python libraries slow to load from NFS mount point

Several of our computers are diskless, and they load their Python libraries from an NFS mount point across the network. This means it can take up to three minutes to start up a Python process that ...
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0answers
26 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
64 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 ...
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2answers
54 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 ...
1
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1answer
40 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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votes
1answer
97 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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0answers
10 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 ...
0
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0answers
47 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 ...
1
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1answer
483 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 ...
2
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1answer
79 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: ...
0
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3answers
75 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 ...
6
votes
1answer
236 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 ...
1
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1answer
24 views

slow file server with contradictory values for CPU and CPL in atop

I've got a fileserver (centos 6.3) that slowed down suddenly earlier today. The cluster that mounts it could access other NFS mounts without a problem, but the access to this one was VERY slow. ...
2
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1answer
717 views

Share disks through NFS on a CoreOS cluster?

Is it possible for a CoreOS cluster to share disk space, e.g. using NFS? If so, how would one go about this? (e.g. in the scenario where one node has a lot of disk space). This would be useful to ...
1
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1answer
208 views

Network File Systems (NFS) between multiple AWS EC2 Instances for VisualSVN Servers behind Load Balancer

I have a couple of windows server instances running on Amazon EC2 with VisualSVN Server and would like to make them a bit more fault tolerant by running a duplicate instance with load balancers. The ...
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3answers
125 views

Find out what NFSD processes are actually doing?

When I view top on one of our servers there are a lot of nfsd processes consuming CPU: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2769 root 20 0 0 0 0 R ...
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1answer
84 views

Solaris NFS Mount Permissions [closed]

I've created an NFS share and have added to vfstab. However, I'm not able to change permissions or create directories as ROOT on the server where it is mounted. $ mkdir test mkdir: Failed to make ...
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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 ...
1
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1answer
40 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 ...
1
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0answers
100 views

Copying from NFS mount crashes Linux client machine

I have NFS share mounted on CLIENT in /etc/fstab: SERVER:/share on /mnt/share type nfs (rw,users,noexec,nosuid,nodev,timeo=14,hard,intr,addr=1.2.3.4) Intensive use on client like copying a lot of ...
0
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1answer
94 views

nfssvc: Address already in use

I have installed nfs server using yum in my centos 6.3 box. But I couldn't start it. Any idea? # /etc/init.d/nfs start Starting NFS services: [ OK ] Starting NFS ...
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0answers
37 views

Can NFS unlink and recreate result in a race condition?

I'm seeing strange behavior and I'm wondering if it's a race condition. The strange behavior is MySQL getting EEXIST when trying to create a temporary file. MySQL reuses temp file names by default, ...
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2answers
97 views

Can NFS server limit the amount of disk space that the NFS client can use?

Let's say in a server A with 100GB partition, user create a NFS export directory. In server B, user mount the NFS share to use it. In server A, can the NFS server limit the amount of disk space that ...