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 ...

learn more… | top users | synonyms

0
votes
3answers
879 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 ...
2
votes
2answers
748 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?
2
votes
0answers
139 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
310 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
122 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
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 ...
0
votes
1answer
53 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 ...
0
votes
2answers
744 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 ...
0
votes
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 # ...
1
vote
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?
0
votes
1answer
363 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 ...
1
vote
2answers
41 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 ...
1
vote
1answer
312 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 ...
9
votes
3answers
33k 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 ...
1
vote
0answers
57 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. ...
0
votes
1answer
95 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
votes
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 ...
1
vote
1answer
55 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 ...
-4
votes
1answer
882 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 ...
1
vote
0answers
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 ...
1
vote
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 ??? ...
0
votes
0answers
62 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
vote
1answer
787 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 ...
0
votes
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
votes
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 ...
9
votes
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 ...
1
vote
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
votes
1answer
334 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
votes
3answers
129 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
votes
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 ...
7
votes
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 ...
2
votes
3answers
2k views

How do I set up a Windows NFS share so that I can view it's contents on Linux?

My NFS server is a Windows XP SP3 box with the Microsoft Windows Services for Unix installed. I have a share configured under C:\NFS with the share name NFS and ANSI encoding. Anonymous access is ...
1
vote
1answer
2k views

Automounting home directories using LDAP in ArchLinux

I have managed to set up an OpenLDAP server that runs ArchLinux. I can now log in from the client (also ArchLinux) using the LDAP users. Now i want to mount the home directories over the network... I ...
1
vote
1answer
54 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
votes
1answer
2k 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
vote
1answer
441 views

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

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 ...
-1
votes
1answer
167 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 ...
1
vote
3answers
262 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 ...
1
vote
1answer
2k views

Fully disable IPv6 for rpc on NFS server - Ubuntu 12.04 LTS

I'm trying to disable IPv6 completely on my NFS server (Ubuntu 12.04 LTS precise), but still seem to have some IPv6 ports listening as shown when I run netstat -lp: Proto Recv-Q Send-Q Local Address ...
1
vote
0answers
195 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
votes
1answer
175 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 ...
1
vote
0answers
70 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, ...
2
votes
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 ...
0
votes
2answers
333 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 ...
1
vote
1answer
81 views

Can I use user-based kerberos authenication with NFSv4?

Is it possible to set NFSv4 + Kerberos to do user-based authentication? As far as I understand you are required to create a principal for a client machine(i.e. it is still Host-based?) on Kerberos ...
0
votes
1answer
3k views

NFSv4 file ownerships, nfsidmap name not found in domain

I have an nfsv4 server and client (both RedHat 6) configured with the method set to nsswitch, and the same domain set on both client and server in /etc/idmapd.conf. On the client I get nobody:nobody ...
-2
votes
2answers
162 views

Which file system best handle multiple, concurrent write sessions [closed]

Which file system best handle multiple, concurrent write sessions Which file system can handle more concurrent write sessions; let’s say 32 write sessions? The file system has to handle 32 ...
3
votes
1answer
118 views

What are some good ways to identify nfs clients that cause high load on nfs server

Sometimes my nfs4 server is under high load. Is there any good tools identify which client causes it. running iotop and nfsstat on nfs server shows only general load information which does not help to ...
1
vote
5answers
11k views

getting input/output error from NFS client on RHEL5

I have two RHEL5 boxes on a private network together (192.168.2.0/24) and I am trying to export a file system from one to the other but I keep getting the following error: mount.nfs: Input/output ...
2
votes
0answers
97 views

Linux NFS server refuses blocking locks

So I have this problem. This horrible, awful problem. I have a set of Linux NFS servers (in a NFS/CIFS cluster using CTDB) that refuse locks… only when the lock is blocking. If it's a non-blocking ...