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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File locking via NFS

In my project I need to use Docker on Raspberry Pi machine. To secure myself against replacing the memory card every month ;-) I want to move all Docker files (/var/lib/docker) off the RPi to a ...
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Linux find utility cannot see fstype of nfs partition

I have 2 debian linux servers that are pretty similar, and mount the same set of nfs partitions. Investigating a problem with find not ignoring nfs partitions when rebuilding the locate db, I found ...
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4answers
9k 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 <client>...
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14 views

NFS export a NFS share

I already have a NFS share mounted on my server A from a remote server Server-Remote. (/mnt/nfs_share) On server A I installed and run the NFS server service and now I want to export the above share ...
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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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Want can be the cause of high number of nfs_lookup requests?

Since a recent linux kernel upgrade (3.2.78 on Debian Wheezy) on both my NFS clients and NFS server, I'm seeing really high increase (10 to 20 folds) in the number of nfs_lookup requests from the ...
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8 views

autofs nfs user share not mounting folder with correction permissions, affecting ssh

Running Centos 6.3 on a jump server which maps to our core server where the nfs mounts are located. The permissions are correct on some jump servers, as well as on the core server, but some jump ...
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0answers
23 views

stat() mtime is in the past, despite fsync

This might be a bit esoteric, but I've got an odd sort of a problem with stat(). Specifically - on a Linux system, with Isilon storage NFS mounted. I have a process that is getting time differences ...
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2answers
41k views

chown on a mounted NFS partition gives “Operation not permitted”

I have a remote partition that i have mounted locally using NFS. 'mount' gives 192.168.3.1:/mnt/storage-pools/ on /pools type nfs (rw,addr=192.168.3.1) On the server i have in exports: /mnt/...
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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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13 views

Windows NFS client using SAMBA port?

I'm trying to find the root cause for the jerkiness of using NFS shares hosted on a debian server on my W10 desktop so I've started Wireshark on my client and saw that NFS client was trying to ...
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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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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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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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2answers
267 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 ~]# ...
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1answer
27 views

NFS Server has low performance

First of all, here are the specs of the server we are talking about (only the relevant stuff): AMD-6400K with AES-NI 6x3TB WD Red HDDs in Software Raid5 (AES encrypted) 16GB of DDR3 RAM The ...
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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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1answer
23 views

NFS read/writes since startup

I'd like to retrieve the total number of kilobytes read/written for each NFS mount point. Using the following commands, I'm able to see the current throughput for each NFS mount point in kB/S. ...
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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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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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2answers
10k 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, ...
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1answer
123 views

What is better: iSCSI or NFS for mysql datadir mount? [closed]

There is database server with ip-address in external zone with mysql instances and nas-storage existing in internal zone. I need that database file is located in storage. I want write in my.cnf for ...
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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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2answers
99 views

Does it involve network to copy a file within a NFS share? [closed]

I am assuming the following ways to copy a file with in a NFS share: Process 1: The client requests for the data to be copied from NFS share (if cache is not there) and the chunks of data are ...
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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 ...
2
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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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33 views

NFS nobody issue

I am having the nfs nobody issue running Centos 6 . I am running nfsv4 and authenticating users using 389-ds LDAP . The nfs mounts on the client are fine, but I am getting the folling error: ...
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0answers
33 views

cpu load and nfs performance

I have an issue about nfs performance. The server is connected via an ISCSI connection TO a SAN. I have sometimes and more and more often load picks and client freezes. I added RAM and try to ...
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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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1answer
20 views

Rsync to remote server with mounted NFS USB [closed]

I am trying to rsync one file from server X to server Y. In the server Y, there is a mounted dir /mnt/myDir, where I am trying to sync that file. The goal is also to keep the full path of the file. I ...
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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
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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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 ...
5
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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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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 "...
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0answers
8 views

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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0answers
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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0answers
25 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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0answers
28 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
15 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 ...
0
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1answer
96 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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43 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
votes
1answer
41 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: ...
2
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1answer
69 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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1answer
39 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 ...
2
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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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0answers
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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63 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)...