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 ...

learn more… | top users | synonyms

4
votes
0answers
421 views

Nobody nogroup on ubuntu client with Solaris server

I have an openIdiana server with ZFS and it has been shared with NFS on a ubuntu server (called server1) one year ago. Now i am asked to shared it on a second ubuntu server (called server2). So i have ...
4
votes
0answers
454 views

using chained automount to mount home directory

I have set up two directories mounted with automount (via LDAP): in the /home directory automount is configured to mount * -fstype=bind :/network/srv/home/& in the /network directory one ...
4
votes
0answers
2k views

how to tune NFS client on MacOS to get Linux like performance?

I have a NFS server running Linux and exporting a couple of shares. Both Linux and MacOS clients connect to the server, and while with the Linux clients I get ~ 75MB/s write speed, the MacOS clients ...
3
votes
0answers
190 views

NetApp NFS Exports with all_squash

We've got a NetApp filer (v8.1.4) with a UNIX-style qtree sharing a volume to a number of different machines (web content for a cluster of front-end and application servers) over NFS. We're trying to ...
3
votes
0answers
217 views

How can I test whether fcntl() locks work with my NFS setup?

From the SQLite FAQ: Can multiple applications or multiple instances of the same application access a single database file at the same time? … SQLite uses reader/writer locks to ...
3
votes
0answers
1k views

vagrant ssh - asks for password after adding synced_folder

I can vagrant ssh into my box fine Welcome to Ubuntu 14.04.2 LTS (GNU/Linux 3.16.0-30-generic x86_64) * Documentation: https://help.ubuntu.com/ Last login: Mon Apr 13 13:05:26 2015 from 10.0.2.2 ...
3
votes
0answers
358 views

NFS Write Permissions — ls -l shows I have it; I actually don't

I have an NFS server serving several clients. Permissions work fine with all clients except one. The client mounts the nfs share fine, with permissions all correctly placed to the right users. ...
3
votes
0answers
482 views

php-fpm process in D state ,cause nfs wait rpc_wait_bit_killable

my wordpress site which is in clustered environment using NFS,nginx,php-fpm,mysql the infrastructure is hosted on amazon ec2.Under high load/traffic the php5-fpm process goes in D state(...
2
votes
0answers
22 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 ...
2
votes
0answers
39 views

Lustre alternative for 70-node scientific cluster

Our lab has a cluster with 70 compute nodes 4 IO nodes Infiniband QDR interconnection 12T disk array accessed using IB SRP protocol The major application is debugging and running MPI-based ...
2
votes
0answers
107 views

Debug slow lan (ssh, nfs) file transfer

I've got two linux boxes attached to a gigabit switch. They both have gigabit NICs, cables are cat7. Testing the network with iperf shows a fast connection but transferring files with rsync, scp, or ...
2
votes
0answers
357 views

Get Windows 2012 Essentials and Windows 98 to share files

I need to get Win98 and Win2012 Essentials working together - share files. We can't get rid of Win98, as we have specialized equipment connected to it (through special card), and newer windows ...
2
votes
0answers
642 views

Problems on mounted NFS: 'No such file or directory' but files and directories exist

So we are having a medium-sized NFS4 storage server running CentOS 6.6 exporting an NFS share /storageDat (which is the NFS root, with two RAID volumes bound in there: ./dat1 and ./dat2); Export ...
2
votes
0answers
109 views

NFS randomly mounts wrong server

I have run into a problem with NFS which has me baffled. I can't even come up with a plausible explanation for it. I have ten machines: slave1 (10.0.0.10) - slave10 (10.0.0.20) Each one runs NFS ...
2
votes
0answers
194 views

Linux NFS server refuses blocking locks

So I have this problem. This horrible, awful problem. I have a set of Linux NFS servers (in a NFS/CIFS cluster using CTDB) that refuse locks… only when the lock is blocking. If it's a non-blocking ...
2
votes
0answers
439 views

LDAP authentication, pam_mkhomedir and NFS automounted homes

We currently have a setup (running on Ubuntu 14.04 LTS) with mixed LDAP/NIS authentication and automounted home directories from several servers (with the auto.home map distributed over NIS). ...
2
votes
0answers
160 views

Setting quotas from a Linux client on a SmartOS (OpenSolaris) based ZFS server

I have a SmartOS (an OS based on OpenSolaris) server running a few virtual machines. One of the ZFS volumes is shared as an NFS volume and mounted on one of the VMs which is running Debian wheezy. ...
2
votes
0answers
2k 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 ...
2
votes
0answers
789 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 10.1.1....
2
votes
0answers
975 views

NFS export CIFS share

I have a server 192.168.1.1 where a samba share is mounted to /image I would like to setup an NFS sever on this machine to share the mounted /image folder through NFS. When I add it to the exports ...
2
votes
0answers
36 views

Can I force nfsd on Solaris to announce more free space than physically available?

I'm working with various Solaris based distributions (OmniOS, SmartOS, Nexenta) and I have a highly compressible and deduplicable data set on a very small amount of high performance storage. The ...
2
votes
0answers
2k views

NFS server service won't stop, client mount timeout?

Client machines were able to connect to our NFS server earlier this afternoon, and everything was running fine. The setup has been working fine for several years. No configuration changes were made on ...
2
votes
0answers
154 views

How do I get the file name corresponding to an NFS file handle on Linux?

I have tcpdump output of some NFS traffic, it shows which file handles are being read or written. I'd like to know which files they correspond to. There's got to be an existing tool which will list ...
2
votes
0answers
2k views

Windows 7 NFS Client Using Kerberos and Linux KDC

I am trying to configure a Windows 7 Enterprise client to mount a NFSv4 share on a Linux NFS server using Kerberos and a Linux KDC. The setup is: IPA Server (OS: Scientific Linux 6.4, Pkg: ipa-...
2
votes
0answers
357 views

ZFS on RedHat configuration

I have to set up a ZFS storage appliance (Oracle ZFS Storage ZS3-2) with NFSv4. The NFS is mounted on a Redhat 6.5 cluster, where the linux users are created (they don`t exist on the appliance). ...
2
votes
0answers
201 views

PHP file load time, perhaps related to NFS?

The Problem I'm attempting to diagnose a performance issue on a Drupal website I'm developing. In the morning, when the site has seen no traffic (not even a cron run) for over 8 hours, the homepage ...
2
votes
0answers
1k views

NFS server export list empty

After upgrading my router, I am unable to mount NFS shares from a Debian server on an OS X client. I have updated /etc/exports according to the new IP address of the client (first line previously ...
2
votes
0answers
613 views

NFS server unresponsive to clients - with processes 'migration' and 'xfssyncd' consuming unusual cpu

I have a CentOS 6.4 fileserver running NFS 4, serving a couple of XFS filesystems. There are a few dozen clients connected to it. Today it slowed to a crawl for the clients - the clients would hang or ...
2
votes
0answers
73 views

NFS Performance Issue Using NAS

I am encountering some performances issue using NFS. Here my configuration: A physical NAS with some internal storage plus an external storage. A virtual linux machine called GhettoVCB where I have ...
2
votes
0answers
724 views

AutoFS wildcard subdirectory

I am trying to automount /home/users/<username>/secure for all users using AutoFS. Naturally I would put down this line as a direct map: /home/users/*/secure -fstype=nfs4,rw,sec=krb5p jupiter:/...
2
votes
0answers
780 views

What would cause RMAN backups over NFS to kill SAN performance?

I've been trying to figure out this problem for several weeks now, we are using an Exadata that runs nightly RMAN jobs to backup the database to a NFS mount. When these jobs occur, the average latency ...
2
votes
0answers
3k views

Synology DSM4.3 with Kerberos and NFSv4

According to the press releases of Synology DSM4.3 can do NFSv4 and Kerberos. Actually, in the Tab with NFS settings, there is a button for Kerberos settings. But I cannot find any guidance anywhere. ...
2
votes
0answers
506 views

NFS showing files in directory, but can't open or stat

I'm using a network of Linux (Debian Squeeze on kernel 2.6.32) machines, sharing files using NFS (v3). The scenario is that a process running on client A will create a file through NFS on file server ...
2
votes
0answers
54 views

What is the typical access time for reading a 100KB file over a LAN from an NFSv4

Would it be right to compute it as the network time (2ms) + disk seek and block read (10ms) ~= 12ms? Would that be the correct order of magnitude? interested in the response time, not absolute ...
2
votes
0answers
553 views

Ubuntu NFS Client connecting to Windows 2008 R2 NFS share - permissions issue

I have an Ubuntu 12.04 LTS x64 trying to connect to NFS share on Windows 2008 R2 server - which is a domain member server. I can mount the share in Ubuntu but if I try to ls the mount folder I get '...
2
votes
0answers
500 views

NFS inherit permissions from shared directory - Mac OS client

Short question: Is there a way to have files on a NFS share on a Mac OS client inherit the permissions of the shared directory? Scenario: Ubuntu 12.04 server Mac 10.7.4 client shared directory has ...
2
votes
0answers
2k views

Same nfs mount options, different output

I have 2 OEL5.5(RHEL5.5) servers. I'm trying to figure out why when I run mount command I get different outputs. Server1 has the following line in /etc/fstab/ 10.11.0.61:/vol/exports/ /exports ...
2
votes
0answers
2k views

automount stops working due to hanging mount.nfs processes that leave /etc/mtab~ lock file

I've got many automount entries in LDAP for mounting ~200 nodes between each other. Often, the automounter stops working. After debugging, I figured out that it can be fixed by running rm -f /etc/...
2
votes
0answers
584 views

Restart linux kernel NFS lockd

Hi is there a way to restart the lockd kernel thread (NFS lock manager)? There were some file locking requests which went wrong and since then it consumes about 50% of CPU. The processes requiring ...
2
votes
0answers
389 views

NFSv4 ACLS vs NFSv3 KRB5 - problems - alternatives?

So NFSv4 acls don't ignore the umask as far as I can tell. And nfsv3 with kerberos has its own host of problems (with autofs - race conditions with pam). So if we want to use an nfs like system with ...
2
votes
0answers
824 views

Discrepency in NFS from Windows 2008 R2 and Windows 2008 SP2

I checked the threads: NFS from Windows Server 2008 R2 and the link http://technet.microsoft.com/en-us/library/cc753302%28WS.10%29.aspx but cannot find the information. For Windows 2008 SP2, is ...
1
vote
0answers
19 views

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 ...
1
vote
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 ...
1
vote
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 ...
1
vote
0answers
42 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 ...
1
vote
0answers
74 views

gssproxy: apache httpd as nfs-client? centos7

When Apache httpd attempts to access a user directory automounted with sec=krb5p, and presumably other sec=krb options, gssproxy issues a failure message and the web server replies with 403 Forbidden. ...
1
vote
0answers
55 views

anonymous cifs client can't read files created with nfs

I'm sharing a windows folder using both nfs and a windows share. The windows share has read permissions for Everyone. The nfs share has write permissions (with "Allow root access") for a specific host....
1
vote
0answers
24 views

Does an NFS client incur read/write page faults proportional to bytes read to/written from server?

Perhaps my knowledge of virtual memory has been supplanted by too much other junk. Recently I ran some database benchmark tests where all data was to be stored on an NFS server and accessed via NFSv3 ...
1
vote
0answers
23 views

keep writing to file after network filesystem disconnects

I'm trying to transfer a huge growing logfile in a way that will survive network partitions between the client and server. If the network connection is lost, I cannot afford to retransmit the entire ...
1
vote
0answers
28 views

What is the maximum NFS exports possible in Linux?

What is a definitive number for the maximum NFS4 exports possible in Linux? I'll be specific, Centos 7. (which is Kernel 3.10) My searches are turning up numbers from 100-800 (mounted) exports ...