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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293 views

NFS performs ways worse than SSHFS, how can I debug?

Situation: zfs server over 10GbE p2p at 192.168.201.1 running omnios, debian client at 192.168.201.2. The nfs performs fairly well on big files but horribly slow on small ones. For instance, cp -r /...
2
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1answer
120 views

rsnapshot Freezes when Backing up to NFS Mount

I've got a Server running Ubuntu Server 14.04 server that has been doing periodic back-ups to an NFS mounted NAS using rsnapshot for several months now without issue. Last week we added a few more ...
2
votes
1answer
1k views

Linux NFS - set default user for new files on nfs share

I use CentOs as nfs server nad 2 Centos machines as clients. I have some problems with permisions/ownership for new files/directories created from clients on nfs share. My exports file: /media/...
2
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1answer
315 views

nmon NFS Performance Counters/Metrics

I have recently used nmon to record NFS client performance data from a suse 10 SP4 host and now need help understanding what the captured read & write figures truly indicate. With other ...
2
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1answer
232 views

mdadm raid10 or nfs performance issues?

I have a fresh mdadm RAID10 device which is healthy, built from 4 x 7200rpm SATA 3 drives: # cat /proc/mdstat Personalities : [raid10] [raid1] md2 : active raid10 sdc3[5] sda3[4] sdb3[1] sdd3[3] ...
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1answer
2k views

NFS mounts not visible for other users in system

Recently I faced an issue of limited visibility of mounted NFS shares on windows 2008 server. Situation is like this: as user A I have mounted NFS share (from linux server) as User A I'm executing ...
2
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1answer
157 views

NFS drops out when .bat script is run

I have a .bat script that runs from a Windows 7 machine. Part of the script is to use plink to ssh into a Red Hat machine and run a couple commands. I have about 4 or 5 plink commands within the ...
2
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1answer
923 views

How can overlapping NFS permissions be configured?

I am running Solaris 10 on my NFS server. I am struggling with how to setup read-only access to a share from a subnet, but allow read-write access from a system within that subnet. On the Server: ...
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1answer
968 views

Folder shares over NFSv4 private to user groups

I want to share a folder over NFSv4, available to some users, and I'm having permission issues. I set up the folder permissions with setGID so new files are created with the folder group owner. But ...
2
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1answer
3k views

GETATTR issues with linux and netapp

We're having an issue with our linux systems connecting to our netapp via NFS. The read/write IOPS are only around 1000/s but the GETATTR calls are almost 10,000! I found this bug but it says, it was ...
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1answer
71 views

Mounting Windows NFS share from RHEL7 - uid/gid show as 4294967294

I need to mount a directory on a Windows Server 2012 system with rw access for local user apache. If I mount with defaults: server2012:/sharedir /appfolder nfs defaults ...
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1answer
87 views

Improve NFS performance for Windows NFS client to Linux NFS Server

I have a CentOS 6.7 server as an NFS Server, and I have a 3-4 Windows 7 (Enterprise) PC's using Windows NFS client to mount the NFS exports. The problem I'm having is this: The Windows clients can ...
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1answer
140 views

nfs mount fails due to same file handle

In /etc/exports: /tmp/test *(rw) /dev/sda1 (ext4 filesystem) is mounted in /tmp/test command to mount nfs: mount -o vers=3 $HOST:/tmp/test $NFS_DIR (where HOST is IP of nfs server, NFS_DIR ...
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1answer
348 views

Unable to mount NFS share

I have 3 servers : Server1 : Stores my data. Had a exported folder. Debian 7 - Linux 3.2.0-4-amd64 on x86_64 Server2 : "Client" where is the Server1 exported folder is mounted. Debian 7 - Linux 3.2.0-...
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1answer
335 views

FreeBSD pf with NFS

I'm having trouble establishing new NFS connections when my pf is turned on. When I turn off pf on the server and client I'm able to mount with no trouble. I tried keep state and flags S/SA on the ...
1
vote
1answer
597 views

Random machine hangs with NFSv4 on CentOS/RHEL 6.5

We have an in-house "compute farm" with about 100 CentOS (free re-distribution of RHEL) 5.7 and 6.5 x86_64 servers. (We are in the process of upgrading all the 5.7 boxes to 6.5.) All these machines ...
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1answer
86 views

Is this possible/advisable to establish SAMBA share across domains?

I realize this question will likely turn out rather complex and require a lenghty description. Likewise there’ll probably not be any short simple answer. I’ve got a large data-store (a SAN) that is ...
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1answer
661 views

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 ...
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1answer
165 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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1answer
3k views

Amazon Linux AMI for NFS between multiple EC2 servers

So I've been trying to create a Dropbox like system to allow multiple EC2 instances to work with the same files. I'm writing the programs that actually modify the files myself, and I'm not worried ...
1
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1answer
264 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 ...
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1answer
1k views

Window 2008 inherit permissions from parent on file created on linux nfs share connected to Windows

I have a Windows 2008 server with a NFS share called myhost/host_dev. The windows NFS share is set up to allow 'unmapped user access'. I am able to mount a Linux directory to that share using mount -t ...
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1answer
348 views

NFS on Godaddy VPS

I'm having big trouble trying to setup nfs sharing folder between 2 VPS I have on GoDaddy, Tried to follow lots of step-by-step guides to do this, but I can't start NFS service, I get this error when ...
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1answer
360 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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1answer
54 views

Spontaneously unmounting NFS exports and nicstat network activity

We have one server which exports two partitions which are massive (one is 61 TB, the other is 28 TB), and we have a lot of users reading and writing to these when mounted on another machine. We have ...
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1answer
417 views

NFS mount still connected even after box is disconnected from network

I have a mount between a RHEL 5.6 and a Solaris 6 box acting as the NFS server. My mount options are simply rw,intr. When I disconnect the RHEL linux box from the network I am still able to write ...
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1answer
492 views

Access xfs quota info from NFS client

I've got an xfs filesystem (on a Centos 6.4 server) mounted via NFS on a client server (Centos 6.3). I can't seem to access the quota info from the client. It simply returns nothing for xfs_quota -c ...
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1answer
197 views

HPC / EC2 - optimizing NFS for relialibility

In AWS-EC2, I've set-up a cluster of linux virtual machines made of an NFS fileserver and many clients. If the number of clients is above ~20, under heavy I/O, I am experiencing loss of file integrity:...
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1answer
314 views

Is it possible to speed up network filesystem by sth like unionfs, aufs?

I need to speed up slow, large storage with local SSD drive. I figured out I could do this with union filesystems. Here are results with nginx reading data from: local SSD alone: ~140 transactions/s....
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1answer
697 views

Apache 2 performance reading from NFS fileserver on EC2

I'm trying to setup an environment with ELB and 4 EC2 m1.large running Apache 2 reading from another EC2 m1.small NFS v3 server. I'm using Apache Benchmark to measure the performance in requests per ...
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1answer
470 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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1answer
705 views

What are the most common reasons for NFS auto mounts to fail?

Of course I need to solve a particular problem, but I'm hoping some more general answers on "how to troubleshoot automounting nfs" come up that will help more people with similar symptoms. We've got ...
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1answer
851 views

Dual Linux NFS Server Failover - nfsv4leastime / nfsv4gracetime

first time here posting, i hope i won't do many mistakes. I've a setup with 2 NFS server. They're using corosync/pacemaker + drbd to offer active/passive nfs server. Distro used is Ubuntu latest LTS ...
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1answer
643 views

Do you need to advertise an AFP service via Avahi for an Ubuntu Server to show up in OSX Finder?

I am only advertising an NFS share plus the "model", and I don't want to install extra services on the Server unless I have to, ie netatalk, as it is used solely for NFS exports. Currently there is ...
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1answer
2k views

NFSv3 + ACL: mask is gone on clients

I'm sharing a NFS folder among a user group. The default umask on the clients is 0700, and this is a problem because newly created files won't be readable/writable by another users. So, I'm using ...
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1answer
151 views

Track source of heavy NFS usage?

The NFS my group uses has been getting extremely sluggish recently. Is it possible to track the processes, across a network of multiple machines of course, that are causing this heavy usage? Perhaps,...
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1answer
2k views

Netboot Debian (wheezy) from NFS v4

Is it possible to boot Debian Wheezy from NFS v4? Bootwing with NFS v3 works just fine. NFS v4 not. This is in my /etc/exports: /nfs 192.168.100.0/24(ro,sync,insecure,no_root_squash,...
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1answer
2k views

Mounted NFS directory not writable by Apache / PHP

Need some help here with NFS. Here's what I have (all servers running CentOS 5.6 with SELinux): 172.17.20.1 - Primary server with static IP. Varnish redirects requests to the web servers. 172.17.20.2 ...
1
vote
1answer
420 views

Why nfs transfer speed is slower than http?

Consider I have a large file on my nfs server. The server and my desktop is connected by 100mbps network. If I mount a directory on my desktop and then try to copy a big file to local fs I have speed ...
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1answer
430 views

Serve an NFS mount over TFTP

I have a FreeBSD server on which I would like to run a TFTP server (for PXE). My daemon of choice is tftp-hpa and I have it configured to serve from /tftpboot properly. It works unless I mount /...
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1answer
500 views

ubuntu mount nfs only if user is in group

I have basic-to-medium advanced network setup at my work. We run an ubuntu 10.04 fileserver serving a few different directories (including /home) over NFS and all client machines (various ubuntu 10....
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1answer
712 views

Centos 5.6 NFS client hangs on file/dir operation on mount, but 10+ other clients (same machine builds) all fine?

I've got an NFS server which is happily serving out files to 10 NFS clients (and has been doing so for 18 months+). I recently noticed that one of the clients has stopped working correctly, NFS ...
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1answer
133 views

NFS mount connectivity status location in Centos

Centos server that establishes a NFS mount on bootup using /etc/fstab, NOT automount. I assume there was a network issue between the two servers that caused the one to drop its mount. After a ...
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1answer
417 views

Tuning based on DataOntap NetDiag

I have a IBM N-series 3700 (NetApp Filer) running data ontap 7.4. When I run netdiag I get: The TCP receive window advertised by NFS client x.x.x.x is 5888. This is less than the recommended value of ...
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1answer
389 views

rpcbind causing very high load on Fedora 10 system with nfs

I've got a Fedora 10 system that's exporting some file systems via NFS. One of the exported file systems is used very heavily on a client system when I run a search engine indexer. The file activity ...
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1answer
395 views

NFS proxy / re-export

I have a situation where I need to mount a few NFS shares on a series of clients on replicated VM networks. So their source IP addresses are not unique. In between the client and the server there is a ...
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1answer
553 views

problem in exporting a partition on a usb stick as nfs volume

I have a USB disk which has 2 partitions.It gets mounted automatically in /media It is the default behavior in the OS (Lucid 10.04 64 bit) that upon connecting a USB (be it thumb drive or hard disk) ...
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1answer
2k views

CentOS 5.4 NFS v4 client file permissions differ from original files & NFS Share file contents

Having a strange problem with NFS share and file permissions on the 1 out of the 2 NFS clients, web1 has file permissions issues but web2 is fine. web1 and web2 are load balanced web servers. So ...
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1answer
389 views

NFS to share FTP server storage

We use FTP server to distribute a lot of files.Hard links are used extensively as we have a lot of identical files named differently. We also have a secondary FTP/WWW server as failover for the ...
0
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1answer
25 views

NFS mount internal error

I have a server that I use for NFS share. 4 servers use it without a problem. I configured a new server and that can't mount. I get this error mount.nfs: internal error In the logfile of the ...