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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Want to route NFS response via an interface. What will the source ip of the packets being sent out?

The NFS server is listening on an interface for a new connection, once a new TCP connection is established the NFS operation is carried out. I'd like to send this NFS response via a different ...
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93 views

Autofs redundant failover to local mountpoint

We are using autofs to mount an NFS partition from a local server. We have a redundant server and we are failing over to this using the method mentioned in that autofs(5) man page. This is all ...
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1answer
1k views

Gluster + ZFS, deadlock during benchmarking: zfs_iput_taskq 100% cpu

First some background: I work at a company that runs a PHP-webapplication. We have a storage backend mounted over NFS on several webservers. Today we have the issue if one webserver writes a file over ...
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1answer
112 views

Sudo keeps asking for password on / mounted over NFS

I have a diskless server booting Ubuntu 14.04 with / taken from NFS. I use nfs-kernel-server. I have some strange behaviour of sudo and locate. sudo keeps asking for passwords despite the Defaults ...
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1answer
34 views

install in nfs shared directory

I have a NFS Ubuntu server and have shared /opt directory among all clients. I want to install packages in /opt directory so that I dont have to install it in all clients. So what I did was download ...
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239 views

Nodes crash with kernel panic due to some bugs in autofs4 module

Recently, my computing nodes started to crash very often. In a pool of ~100 nodes running Ubuntu 12.04 for scientific computing, a machine dies every hour with the following kernel panic message: ...
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2answers
510 views

Linux NFS hangs after about 15 minutes

I'm somewhat new when it comes to administering Linux and NFS, so please bear with me. We are trying to setup a small cluster at work. Currently the system is just 2 DELL high-end workstations, ...
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2answers
77 views

Setting up a multi-host SAN

I'm looking for some advice on setting-up multi-host I/O access on our SAN: I have a blade enclosure (PowerEdge1000e) containing an Equallogic PS-M4110 storage blade with a single RAID6 volume ...
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2answers
678 views

Linux: echo 3 > /proc/sys/vm/drop_caches takes hours to complete

I have a Thecus N8900 NAS, which is a Linux based file server, providing files via NFS to six clients. For some reason that Thecus support has yet to explain, it runs a script that checks ...
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3answers
1k views

Poor write performance on Debian server running NFS with 22TB exported JFS filesystem

I am currently running a debian server that is exporting a large JFS filesystem (22TB) over NFS (nfs-kernel-server.) When attempting to write to the NFS share, the performance is very poor. The 22TB ...
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1answer
196 views

Mounting an NFS or SMB share onto OSX only while connected to VPN

I'm setting up my machine to connect to network share resources at the place I work (there are NFS shares and SMB shares). This access is only possible through VPN. So my question is, Is there a way ...
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2answers
421 views

An unknown tool is wiping our Virtual Machines and we can't ID it

A console view of a Windows 2008 R2 VM, on vSphere is showing the following screen: "Operation 2 of 2" "Wiping disk" Can someone advise on what this program is? Some information on this mystery: ...
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26 views

NFS client replaces some remote folders with local folders

I am not sure if the title is descriptive enough, but I did my best to explain the problem. I have an Ubuntu 12.04 NFS server sharing home folder of user MyUser as /home/MyUser I also have a client ...
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1answer
318 views

Mounted gluster volume only accessible by root

I have a 2-node cluster with each node having two HDDs. The home directory of mpiuser is shared between the nodes via NFS(Used guide here). The 2nd HDD of each node was used to create a gluster ...
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1answer
55 views

Process can't see recently created symlink on NFS

I have a small amount of old ubuntu desktops connected by a switch acting as a mini test cluster. The workers take commands from a master node via the SLURM queue manager. They share a data mount and ...
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18 views

<Directory /> doesn't (always) apply its settings to NFS-mounted home directories

Two different machines, a production and a test machine, are running CentOS 6, with the CentOS Apache package installed, and both version 2.2.15. The configuration on the test machine is an exact ...
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81 views

Can't read file perms from Linux when file is open in Windows (NFS share)

I have a folder that is shared from Windows (2012 R2) via NFS, and mounted in Linux (Ubuntu 14.04). Everything is working fine, except that when a file is open in Windows, even if it's just Read ...
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59 views

getting rid of unused listening ports (kernel)

As a follow-up on this question, I have that issue (ports that are reported listening in netstat, but have no process linked to it) and it's the nlockmgr that's actually using these ports according to ...
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1answer
99 views

Poor performance executing “cp -al” over a NFS export

I am in the process of implementing a backup of a WD My Book Live Duo. This device is configured with software RAID0. The backup source directory is the root of the device, and the destination is a ...
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24 views

How to make shared space from HDDs of nodes in a cluster?

I have a 2-node cluster with each node having two HDDs. I want make a scratch space common to both nodes using the second HDD of each cluster. I mounted the 2nd HDD of master node as /home and have an ...
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95 views

Why are server side permissions on an NFS share changed when mounting from Windows 2008 R2 per Folder Redirection?

I have a CentOS server, that exports its /home directory through NFS. Another CentOS client machine is mounting these just fine, and using the exported home as its own home directory. Its /etc/exports ...
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83 views

Why does samba include seemingly bogus “supplementary groups”?

Our environment is subject to the "16 group limit" with Samba. We are using Samba version 3.6.12. Basically if a user is in more than 16 groups, the whole system gets hosed and things go haywire. ...
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208 views

rsync chgrp Failing on NFS

I am trying to set up NFS on two servers to share files. The owner of the files in question have the same UID and GID on NFS Server and each NFS client. The NFS Server is running on Ubuntu 14.04 and ...
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604 views

“The volume for a file has been externally altered …” and setting file sizes on write to NFS from Windows

I have set up NFS access to HDFS. I can connect to the default root share from both Windows and Linux clients and all clients can read from the share. Writing from the Linux client is also ok. When ...
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6answers
8k views

How should I copy my VM templates between vSphere datacenters?

Background/Environment Architecture: My current environment for $corp_overlords$ is set up in a hub-and-spoke model with a technologically well-endowed home office hub (SAN, bladecenter/bladesystem ...
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423 views

Mounting NFS with sync option but without noac option

When I mount using the sync option: sudo mount -o vers=4,soft,sync,sec=none -t nfs 192.168.1.198:/js.js /mnt/self the sync option doesn't seem to get applied: $ cat /proc/mounts | grep nfs ...
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1answer
314 views

Linux NFS mounted Windows network share

I am setting up a new box (Ubuntu 12.04 LTS) to play with and I mounted (via mount.cifs) a windows network share at /mnt/common. Also added the lines to fstab, mounts just fine at boot time. Now when ...
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2answers
2k views

CentOS 6: Can not start NFS

I am unable to start the NFS service. When starting there is no error. But the services are stopt after it. No messages at all in /var/log/messages. Same happens to rpcbind serivce. Any idea what this ...
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1answer
353 views

Mounting NFS shares with pam_mount module

I am setting up a classroom environment where Windows 2012 R2 Server is used as a domain controller and file server. All the clients will be Kubuntu 14.04. I have set up the domain and NFS shares ...
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104 views

NFS clients seeing stale state

I have a server exporting partition as: /data/foo *.example.com(rw,sync,all_squash,anonuid=502,anongid=502,subtree_check) ... and client mounting it as: myhost:/data/foo /home/myuser/foo ...
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1answer
3k views

Can NFS be forced to refresh stale files/directories when not using noac on the mount?

We mount without using noac. I have a file that I append to once every 20 minutes. Then it will be read with mmap about 5,000 times a minute. We only mmap a couple blocks for each read. Needless to ...
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92 views

Stop/Prevent NFS from resolving symbolic links in a share

I have an AWS instance that is running NFS. This is my exports file: /home/ec2-user/media *(rw,sync,no_root_squash,insecure) /home/ec2-user/var *(rw,sync,no_root_squash,insecure) Those directories ...
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1answer
709 views

XenServer 6.2: unable to detach NFS mount

We recently lost an NFS server. It was used to export a drive with ISO files for use in XenServer patching / updating / etc. The server has been replaced but the mounted drive can't be removed from ...
2
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1answer
188 views

Linux read disk cache and NFS

I am interested in the impact of the read disk cache on accessing a file through NFS. Lets say I have a file on NFS. I access it (do "cat myfile") from a linux host "A". If there's enough RAM a file ...
5
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3answers
3k views

Vagrant OS X host nfs share permissions error - Failed to set owner to '1000'

I am a Vagrant and Puppet newbie, I have created a Base Box with Debian Squeeze plus standalone Puppet, using the instructions here to install Puppet with the Puppetlabs packages. The box itself ...
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3answers
4k views

Desperate: statd timed out, lockd cannot monitor / unmonitor

Since this afternoon something is wrong with the server. On the server side I see messages in dmesg as follows: statd: server rpc.statd not responding, timed out lockd: cannot unmonitor ...
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1answer
1k views

“Network Error - 53” while trying to mount NFS share in Windows Server 2008 client

CentOS | Windows 2008 I've got a CentOS 5.5 server running nfsd. On the Windows side, I'm running Windows Server 2008 R2 Enterprise. I have the "Files Services" server role enabled and both Client ...
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1answer
6k views

unable to write to mount point (nfs-server), getting “Permission denied”

I'm trying to configure NFS between two RHEL7 nodes: first node: [root@ip-10-164-175-246 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.0 (Maipo) [root@ip-10-164-175-246 ~]# ...
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1answer
36 views

Deletion of User and home directory from NFS

I have 10 systems with opensuse installed in each of them.I have created 2 servers such that one is NIS and other is NFS , i have added lets say 5 users to NIS and their corresponding home ...
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0answers
103 views

Expected difference of file creation time for NFS versus local file system

File operations are necessarily going to be slower over NFS. What I would like are some rough estimates of expected slowdown between local and NFS file operations, specifically for file creation when ...
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0answers
71 views

FreeNAS NFS locks create extra files

I just upgraded FreeNAS from 8 to 9.2.1.6-RELEASE and now I am having some trouble with (what seems like) NFS locks. I am using the ZipArchive from PHP to add files to ZIP archives that are on an NFS ...
0
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1answer
131 views

Start Apache after GlusterFS mount on boot

I want to start Apache after mounting a NFS (GlusterFS) share, but it keeps starting before the mount step. I set the order in /etc/rc*.d/ but it didn't work. I always can edit the scripts to sleep a ...
1
vote
1answer
652 views

Vagrant synced_folder syntax for nfs options (trying to disable nfs_export)

I'm trying to disable the nfs_export option in my Vagrantfile, so that Vagrant will not touch my /etc/exports. The Vagrant documentation says: NFS synced folders have a set of options that can be ...
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30 views

Possible to use nfs-client in VM with non-bridged network adapter?

I've just discovered that when an nfs client connects to an nfs server, it sends the client's IP address to the server -- mount -vvv reports: ... mount.nfs: trying text-based options ...
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373 views

Red Hat with rpc.statd is not running and can't start nfslock

I try to mount from Linux machine to some folder on win machine. From the output I see that mount complains about rpc.statd. So I tried to start the nfslock but I got FAILED. Then I look on the ...
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6answers
2k views

OpenBSD configuration: Client unable to mount via NFS using Berkeley Automounter (amd)

What I am trying to do is to have my openBSD client (OpenBSD 4.9) auto mount a Linux NFS file system (Scientific Linux 6.1). So far, I am not sure if it is configured correctly. To get things out of ...
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0answers
156 views

NTFS Share vs. NFS Datastore on VMware 5.5

I am currently using Physical Server 2012R2 of 10TB RAID5 mapped as a NTFS share to the Virtual Machine, which is a Camera Server 2012R2 hosted on VMware 5.5. Storage Server is used only for all video ...
2
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0answers
414 views

NFSv4 idmapd ignores Nobody-User

I have a folder which is owned by ftp:users. I wanted to export this folder and have all requests mapped to the ftp user, which has id 107. In /etc/exportsI have the following: /media/other ...
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1answer
155 views

storage traffic not going through Bonded interface

hi few days back i have asked a question here choosing network interface based on network purpose on my Centos server there are 4 NICs i bonded first two NICs and created bond0 with an MTU of 8600 ...
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108 views

Debian nfs-client shows nobody:nogroup

i have a running ldap-server, which works well with my webserver. Now i tried to get the nfs-server running with my a MySQL server. I (think) i did the same things like on my webserver configuration. ...