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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452 views

how can I mount an nfs share on a mac laptop so when it is away from my network it doesn't hang

I can mount an nfs share on my linux machine just fine, but this is a macbook pro that is doing the mounting, and when the laptop goes away from my home network nfs hangs trying to communicate with ...
3
votes
1answer
3k views

automount - autofs mount issue on CentOS 6.5

Server CentOS 6.5 and Selinux is permissive My NFS server share in /etc/exports /home/unixmen/ 10.0.0.0/24 (rw,sync,no_root_squash) Client running on another CentOS 6.5 host , is able to mount ...
3
votes
2answers
219 views

NFS client keytab: multiple machines

How should one go about setting up client-side keytab files for each client machine to access network services? My working example is NFSv4, which requires each client to have a Kerberos keytab ...
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votes
3answers
1k views

multiple mounts of same NFS share on one client?

I'm moving webspace content to NFSv3 shares. Because of suexec restrictions I have different paths to different subsets of the content on the client. I wonder if I can still have all of the content in ...
3
votes
1answer
313 views

build user chroot on first login

I'm using ldap for remote user authentication and I basically need to either figure out how to: a. chroot a user on machine b from machine a via nfs,(which doesn't seem possible without mounting ...
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6answers
10k views

vSphere ESX 5.5 hosts cannot connect to NFS Server

Summary: My problem is I cannot use the QNAP NFS Server as an NFS datastore from my ESX hosts despite the hosts being able to ping it. I'm utilising a vDS with LACP uplinks for all my network traffic ...
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1answer
1k views

How to monitor NFS load from userland?

Apologies if I'm not using the proper jargon (although I'm a longtime linux user, I'm not an admin) or if this is a FAQ (though searching SE got lots of hits, I didn't see anything quite like this ...
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1answer
3k views

NFS client has unbalanced read and write speeds

I've got a NetApp as my nfs server, and two Linux servers as the nfs clients. The problem is that the newer of the two servers has extremely differing read and write speeds whenever it is doing read ...
3
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1answer
635 views

Does NFSv3 respect ZFS ACL's?

NFSv3 of course doesn't support ZFS ACL's, but what will happen if I have the following setup?: +-----------------------------------------+ +-------------+ | FreeBSD ZFS serv1 ...
3
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1answer
1k views

How do I rearange a file tree and then export it over NFS?

I've got a backup server that stores incremental backups in a tree like this: /backups hourly.0 server 1 server 2 hourly.1 server 1 server 2 hourly.2 ...
3
votes
2answers
5k views

NFS cache : file content not updated on client when modified on server

Here's my set up: One NFS Server machine (v4), several NFS client machines. When a client machine write files to the NFS mount, the other clients see the new content instantly : no problem. But, ...
3
votes
2answers
561 views

Is NFS caching suitable for caching large files (200kb to 50mb?)

I have a 1TB disk on one server that 4 other servers frequently access via NFS to distribute the files over HTTP. I'm seeing a high load on the central server and want to cache these files on the ...
3
votes
1answer
3k views

How to test if NFS is working

I am trying to create a script that runs on the client and checks my NFS mount periodically and changes some stuff around (moves a read-only, local version of the data in place of NFS) if there is an ...
3
votes
1answer
910 views

Central “/home” using SSHFS?

The standard way to setup a central "/home" directory on a Linux workstation is using NFS. The problem is that I don't like the lack of real security in NFS. So instead I want to try to use SSHFS. ...
3
votes
2answers
928 views

How can Linux mount an NFS directory, and the filesystems mounted inside it?

I have an NFS server with a directory which contains a dozen other local filesystems. I'd like to mount the top-level directory on the server, and have the Linux client automatically mount the right ...
3
votes
1answer
3k views

Mount to NFS export of autofs mount shows empty contents

I use autofs to mount some iso files in folder /mnt/iso: Fedora-13-x86_64-DVD.iso Fedora-14-x86_64-DVD.iso Fedora-15-x86_64-DVD.iso The autofs is working fine and I can see the contents of iso ...
3
votes
2answers
4k views

Good NFS multipath solution

I have a couple of servers serving exactly the same content through NFS to several webfarms, all the servers involved are running CentOS 5 The content between both NFS servers is replicated using ...
3
votes
3answers
427 views

Are there any good intranet search engines?

I'm searching for a intranet search engine which is capable of spider our intranet websites and network shares like SMB, NFS and optionaly AFP. Ever better for us would be a search engine which is ...
3
votes
3answers
202 views

System to keep folder synchronized with remote server

We have a Linux server with a couple of NFS shares on our local network, and we want to be able to access the data on those shares from some remote machines outside of the LAN. What we are planning on ...
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 ...
3
votes
1answer
7k 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 ~]# ...
3
votes
1answer
133 views

Poor NFS Performance Using Multiple Disks

I have a server system running Ubuntu 12.10 with 12 disks attached. I am sharing all of these disks on my 10 gigabit network using NFSv4. However, I am getting generally poor performance over NFS ...
3
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1answer
420 views

Creating two nfs shares from same server, but when mounted, both point to same directory

I've got a group of server that need two nfs shares, a few servers need access to one of the shares and all of the servers need access to another. The NFS server is ubuntu 12.04 and the others are ...
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votes
3answers
7k views

Why is an nfs server mounted as rw returning read only filesystem errors

I am working on a Ubuntu Server 64bit. I have mounted an nfs as rw, but whenever I try to edit anything on the mountpoint in question, I get a read-only filesystem error my etc/fstab reads: # ...
3
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1answer
2k views

NFSv4 and rpcbind

According to Red Hat docs 'rpcbind' is not required any more: Because protocol support has been incorporated into the v4 protocol, NFSv4 has no interaction with the portmap, rpc.lockd, and ...
3
votes
2answers
3k views

Can not mount NFS from server on local network

I set up my NFS server without doing any bigger changes in configuration files. After that I added these entries to /etc/exports(both paths are valid) on server(192.168.1.11): /export ...
3
votes
1answer
391 views

Using NFS for scalable PHP/MySQL web application

Here's the situation: I have a PHP/MySQL web application that accepts user uploads (pdf files). From these pdf files' pages a preview image is made on the fly and presented to the web app's users. ...
3
votes
1answer
418 views

Mixing NFSv4 all_squash and sshfs access

I have a problem with my server. In my internal network I hand out several network shares using NFSv4 from a Debian Squeeze server to my clients. These shares use the all_squash option because I want ...
3
votes
2answers
546 views

In search of a network file system with extended caching to speed up file access

I'm running a small home server that stores my documents. The disks in this server are in a RAID 1 configuration (using Linux md) and it's also periodically being backed up to an external hard drive ...
3
votes
3answers
763 views

vmware vmdk disk problem

I have a VMware ESXi 4 server and 2 storage servers (mounted via nfs). Between the storage servers (Fedora 14) is a drbd cluster (dual primary) and ocfs2 filesystem; also every server has a local ...
3
votes
4answers
866 views

Pros/Cons of filesharing protocols for a Mac environment

In our school division, we have a OS X Server sharing files to up to 120 Mac clients [for things like home folders and group sharepoints]. The AFP protocol is the easiest to set up and use, but that ...
3
votes
1answer
464 views

NFS v4 ACL inheritance problems - “i” flag set but not wanted

What I am trying to is add an NFS v4 ACL that allows a directories, child and grandchild, great grandchild etc directories and files to inherit a delete ('D') flag under linux. The underlying file ...
3
votes
1answer
353 views

Unable to read from/write to an NFS share from Win XP client

We have an NFS share on a Debian Linux host which is mounted on a Win XP host using SFU. We can create folders on a share or delete files from it but it's not possible to perform file write or read ...
3
votes
1answer
1k views

Delaying NIS & NFS startup till after network interface is fully ready on Fedora 17

I've recently set up a fedora 17 server for our network, and I've been having trouble getting the NIS service to work on startup. Here's some logs from the system: Aug 21 12:57:12 cairnwell ...
3
votes
2answers
1k views

Drupal on an NFS share has terrible performance

We have a setup where a Drupal 7 site with the following setup - a VMware ESXi 4.1 host server running a web vm and an NFS VM. The web VM is using Apache and mod_php. The site is still in development ...
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 ...
3
votes
1answer
5k views

What is launching all of these rpc.statd processes?

On of our servers -- running CentOS 6 x86_64 -- we're seeing a lot unusual activity with rpc.statd. We have rpc.statd configured to run on a static port via /etc/sysconfig/nfs: MOUNTD_PORT=892 ...
3
votes
1answer
2k views

How do I disable NFSv3/v2 connections to a FreeBSD NFSv4 server?

I am using a Kubuntu 11.10 client with a FreeBSD 9.0 server. The server has the following lines in /etc/rc.conf nfs_server_enable="YES" nfsv4_server_enable="YES" nfsuserd_enable="YES" and the ...
3
votes
2answers
382 views

Linux shared writable directory recursively

How can I make a directory recursively read/writable to a group of users? PROBLEM: This is a directory used by apache so access rights should be fairly strict. The only way I could make it ...
3
votes
1answer
2k views

How do I speed up and cache mmap file access over NFS on Linux?

The server and client are both 64-bit Ubuntu 10.04 LTS. The application in question is a custom app that uses mmap() for fast random file access. Its ideal state is when the entire file is cached in ...
3
votes
1answer
1k views

High Availability NFS Server (Heartbeat/DRBD) long hang on clients when takeover occurs

We have a High Availability NFS environment using DRBD, heartbeat and nfs exposed to clients (Simular to the following https://help.ubuntu.com/community/HighlyAvailableNFS ). This seems to be a ...
3
votes
1answer
639 views

Poor NFS performance when sequentially reading large files

I have an NFS3 server with multiple clients. Each client is sequentially reading a different large file, and performance is very poor. Here is what I am observing in iostat on the server for the disk ...
3
votes
2answers
983 views

cross-syncing home directories with disconnected operation (Linux/Ubuntu)

Here is the scenario I am trying to make work. I have three machines, J, T and R that need to eventually get the same data (slight temporary differences are fine). J and T are desktops that are ...
3
votes
1answer
703 views

nfs4 id->user client-side not working

The situation is an nfs4 server and client using rpc.idmapd to map ids. The id mapping is working on the client for existing files served up from the server. On the server: [root@server ~]# id user1 ...
3
votes
1answer
605 views

Understanding NFS4 exports and pseudofilesystem

I think I understand the way pre-NFS4 exports work, specifically the namespace of the exported point. (ie. export /mnt/blah on server, use mount server:/mnt/blah /my/mnt/point on client) However, ...
3
votes
2answers
1k views

Stale NFS fila handle error with log4j

We have a few instances of a java program running independently but writing to the same log file. Infrequently we got Stale NFS file handle error when log file was being rotated and written by ...
3
votes
1answer
189 views

Tracing NFS activity

I've got a system of 55 workstations that share two NFS mount points on a central server. Recently over the past few days, I've noticed an increasing number of "GETATTR" requests filtering in from ...
3
votes
1answer
281 views

Can I get a clear summary of the new features of pNFS?

So I'm somewhat familiar with NFS and ilk, and I realize that NFS 4 is adding a host of new features, when I stumble onto pNFS. It appears to be "parallel" NFS storage, but the diagrams and ...
3
votes
1answer
79 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 ...
3
votes
1answer
286 views

Is this a Linux NFS client bufferbloat?

On a NFS mount (standard options on RedHat 5.6 with ancient 2.6.18 kernel), it seems to me that big and multiple write operations delay smaller read operations. For example, doing a simple ls in a ...