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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selinux with nfs share how to allow different processes to write

We have a server with an NFS share for all storage stuff. Many processes should have read/write access to this share. For example: squid httpd ejabberd other self written For this question I used ...
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7 views

Is it possible to change ownership of root directory for NFS mountpoint? [duplicate]

I have an NFS share and OpenSSH server. What I'm trying to achieve is to jail SSH users in the mountpoint for the share. The problem is that OpenSSH server requires all directories within a path of ...
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12 views

Windows Server 2012R2 to Ubuntu Server NFS mount extremely slow (4MB/s)

The mounting of a NFS share provided by the windows server under ubuntu works fine, accessing the files too, but copying a 1GB file over to the share results in an aggregated speed of 4MB/s. The first ...
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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 ...
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0answers
18 views

Error when building NFS-ganesha v2.3 from source code

I am building NFS-ganesha v2.3 from source code (download here: https://github.com/nfs-ganesha/nfs-ganesha/releases/tag/V2.3.2) on Debian 8. There are some errors: error: ‘SVCXPRT’ has no member ...
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0answers
14 views

Samba Share on remote machine

I'm with the following environment: I have 3 computers: A machine working as a storage (Ubuntu 14.04) (Khan), a Samba Server (Ubuntu 14.04 with Samba 4.3.9 with a NT4-like Domain) (Vader) and a ...
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1answer
88 views

Advantages and disadvantages of each type of layout in pNFS

As I know, Parallel NFS (pNFS) has three types: file layout, block layout and object layout. What are the advantages and disadvantages of each type?
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2answers
1k views

Mounting NFS3 using Kerberos and AD

I've got a Linux server (Centos 5.6) that needs to automount home directories from a Windows (Server 2008) NFS share using Kerberos. The share mounts (with the nobody user and group) if authentication ...
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1answer
2k views

NFS fails to mount through openvpn tunnel

I am trying to establish an nfs connection through an openvpn tunnel. It really anoying and i dont know what to try next. The connectein test has been made on several platforms now. used debian/centos/...
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1answer
1k views

NFS mount mounted inside another NFS mount disappears randomly

I have quite an odd issue where my nested NFS mounts just disappear randomly from time to time. The fstab entries look somewhat like this: nfs:/home /home nfs rw,hard,intr,rsize=32768,noatime,nocto,...
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1answer
2k views

Why does the “nocto” NFS mount option in Linux not prevent flush-on-close?

I've been learning about the close-to-open policy of NFS, which causes each file to be flushed to the server as it's closed, to ensure consistency across clients. (See http://docstore.mik.ua/orelly/...
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19 views

How to set up NFS audit options using nfsadmin on Windows 2012 R2

Hi guys I need set up two audit options using commandline on bunch of my NFS servers (Windows 2012 R2), like this: nfsadmin server config audit = +mount audit= +locking I pretty sure this is ...
2
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1answer
32 views

rsync NFS charset issue

I am trying to sync data to a NFS share provided by a Dell Compellent FS8600 NFS appliance. I am trying to sync files with characters that are non-ascii, and I get this error: rsync: ...
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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 ...
2
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1answer
65 views

How NFS lock works in pNFS

As I know, pNFS is an extended protocol over NFSv4.1. Does anyone have any information about how the NFS lock works on Parallel NFS (pNFS)?
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3answers
2k views

Systemd: start a unit after another unit REALLY starts

In my particular case I want to start remote-fs unit after all glusterfs completely starts. My systemd files: glusterfs target: node04:/usr/lib/systemd/system # cat glusterfsd.service [Unit] ...
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1answer
31 views

Locking mechanism on pNFS

As I know, in parallel NFS, after getting Layout from Meta Data Server, Client communicate directly with the Data Server. I wander what will happen if multi clients read or write to the same region of ...
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1answer
3k views

NFS lock not working properly

I'm getting the following error on an oracle database. ORA-27086: unable to lock file - already in use It tries to lock a file that resides in an NFS mount. The NFS is on a loopback setup (long ...
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0answers
14 views

Comparison about security between file layout and object layout of pNFS [duplicate]

In the three types of pNFS (block layout, file layout and object layout), as I know, block layout is lack of security. So, between file layout and object layout of pNFS, which type is more secure?
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13 views

Comparison between performance of block layout, file layout and object layout of pNFS [duplicate]

As I know, there are three type of pNFS: file layout, block layout and object layout. So, between these types, which layout reach the best performance and which layout has the worst performance.
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45 views

Samba on NFS with Bind Mounts

I have a machine, which we can call HOST, that exports /home via NFSv4. It also runs several VMs, including one we can call SAMBA, which mounts and then re-exports (yes, I know this is not recommended)...
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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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3answers
2k views

Rsync hangs: expand file_list pointer array to N bytes, did move

Rsync is going into "interruptible sleep" mode after transferring some files from a local folder to a NFS folder. The folder I am trying to backup contains more than 180gb of data. This is what rsync ...
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14 views

Kerberized NFS mount suddenly failing, permission denied errors

I'm trying to track down a bug with an NFS mount that seems to have appeared rather suddenly. Most of the time, if I try to ls /mnt, I get output that looks like this: ls: cannot access /mnt/dir1: ...
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29 views

Troubleshoot NFS mount not working after reboot

I created a mountpoint and an entry in the fstab nas:/server1 /nas/server1 nfs rw,_netdev 0 0 This should try to mount the nfs during startup; but it might fail. That is ...
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1answer
1k views

ZFS, NFS and Nexenta

Is this message familiar to someone ? zfs-clu-01a rpcmod: [ID 851375 kern.warning] WARNING: svc_cots_kdup no slots free zfs-clu-01a last message repeated 75220 times We have a lot of trouble ...
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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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23 views

Samba Share Not Showing All Available Space

So here's the issue. I have two Ubuntu Server systems, one on 12.04 and one on 14.10. I need to mount a share on the 14.10 system (hereby referred to as the NAS) on my 12.04 system (hereby referred to ...
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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 ...
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1answer
2k views

Forcing Linux Permissions Stickybits or ACLs

I have a question/confusion regarding forcing inherited permissions on Linux (namely CentOS 6) The Setup: 1 x CentOS File Server 2 x CentOS NFS Clients Lots x Windows Samba Clients The file share ...
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1answer
32 views

“nfsd peername failed” but NFSv4 service functions

My current setup: 2 NFS servers sharing the same directory with identical content, 1 keepalived server as SLB (or rather for failover in this scenario), and 1 NFSv4 client mounting through VIP. All ...
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15 views

FreeBSD server FreeBSD client when trying to mount at version 4: nfsv4 error=10016 FreeBSD

I successfully use NFS verson 4 having Solaris server and FreeBSD client. When trying to use FreeBSD server I get error messages, either error=10016, input/output error or 10012. Same server serves ...
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1answer
2k views

FOG Server NFS Issue

I am having an issue with the Free Open Ghost server. I set it up on Ubuntu server, and have Ubuntu mounting an SMB share to it's /images directory (my server has a small internal boot disk). Fog's ...
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2answers
1k 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 ...
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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
1k views

Intermittent NFS lockups on Isilon cluster

We have an Isilon cluster with 8 IQ 12000x nodes which exports storage via several NFS shares for a handful of Linux and Solaris clients. There is a Linux system that has one of these NFS filesystems ...
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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 ...
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0answers
18 views

How to share /Volumes from a mac on nfs

I need to share the "/Volumes" directory and all it's mounted point to a linux client but it doesn't seems to work. I don't want to share every mount point on this mac because it's a workstation with ...
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2answers
2k views

NFS on Btrfs on multi-devices .vs. Glusterfs on distributed-volume?

I considering a storage for Email. This storage system run on my own private cloud (already replicated), then i does not care about replication. I'm thinking about 2 options: 1- I will create few "...
0
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1answer
23 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 ...
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4answers
9k views

NFS “Permission Denied” getting cached on NetApp Filer

We have a bunch of Linux boxes mounting NFS shares off a NetApp filer. From time to time, I will flub some part of the export configuration. Typo on one of the allowed hosts, incorrect IP address, ...
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3answers
46 views

Mount large nfs folder on small server - is it possible?

For example, we have: Server A with 30 Gb disk space Server B with 500 Gb disk space. It has /media folder (100 Gb - it's more, than whole A server disk space) I want to mount /media on server A. ...
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0answers
117 views

Map a NFS share as a drive in the SBS Group Policy Editor

For the moment I am not capable to access a NFS shares under SBS 2011. I tried to set the NFS share name in the Group Policy Editor hoping it will be resolved in the Terminal Server session where the ...
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0answers
24 views

Cannot run pNFS block layout on Linux

I try to run pNFS on Linux with 3 node (all nodes are Debian 7, kernel linux 4.6.0) : Data Server: iscsitarget is installed on this node, it share a LUN Meta Data server: In the kernel config, I ...
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26 views

Should NFS consecutive writes then reads be consistent across hosts?

For $work I am writing several thousand files to a directory mounted on NFSv3. Once the process writing the files has completed, a process on another machine starts to read them. The problem I am ...
12
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2answers
35k views

“Stale NFS file handle” after reboot

On the server node, it is possible to access an exported folder. However, after reboots (both server and client), the folder is no longer accessible from the clients. On server # ls /data Folder1 ...
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26 views

High server loads with NFS mount on a remote Windows server's NFS share

From a SLES 11 Linux, used as Oracle DB server, I've a remote partition always mounted. The remote partition is a NFS share served by a Windows 2008 R2 with NFS Server component (Please ... don't ...
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0answers
55 views

Cannot run ctl on Linux for pNFS

I want to install pNFS server. I install ctl from source code. But when I run command ctl -u, the error below occur: /proc/fs/pnfs_block/ctl: No such file or directory I run linux 4.6, the ctl ...
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0answers
17 views

Cannot start service blkmapd for using pNFS

As I know, to use pNFS block layout, I must start blkmapd at the client side. But when I try to start blkmapd by command blkmapd -f, the error below occur blkmapd: open pipe file /var/lib/nfs/...
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2answers
130 views

mount.nfs: Failed to resolve server

I have a problem with nfs client not being able to resolve a resolvable DNS name. [root@testserver-2 ~]# host nfs-server-host-name nfs-server-host-name has address 10.37.4.131 [root@testserver-2 ~]# ...