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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Best filesystem choices for NFS storing VMware disk images

Currently we use an iSCSI SAN as storage for several VMware ESXi servers. I am investigating the use of an NFS target on a Linux server for additional virtual machines. I am also open to the idea of ...
5
votes
6answers
5k views

Is there a way to do something like LVM over NFS?

I realize that since NFS is not block-level, LVM can't be used directly. However: is there a way to combine multiple NFS exports (from, say, 3 servers) into one mount point on a different server? ...
6
votes
3answers
4k views

Combined NFS, Samba server w users from Active Directory

I want to build a server that exports user home directories over SMB/CIFS and NFS. This server would be joined to a Win2k3 AD domain controller that holds our user database. As I understand it, ...
4
votes
1answer
2k views

NFS - Files on client are not appearing on server

Heres my set up: One NFS Server machine, two NFS client machines. The client machines write files to the NFS mount, but occasionally, the files don't appear on the NFS Server machine or other client ...
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6answers
6k views

How should I copy my VM templates between vSphere datacenters?

Background/Environment Architecture: My current environment for $corp_overlords$ is set up in a hub-and-spoke model with a technologically well-endowed home office hub (SAN, bladecenter/bladesystem ...
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votes
5answers
4k views

MySQL 5.1.34 on NFS w/NetApp

Is this still a bad idea? I know older versions of MySQL performed poorly with NFS. I imagine the issue lies with the usage of fsnc() and/or O_DIRECT. If the issues are mostly resolved, are there ...
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vote
4answers
8k views

Mapping UIDs for NFS

I have a Mac OS X file server that serves via SMB/CIFS and AFP. The server is a domain client via the golden triangle approach, but this results in a very large UID for the users. This is fine for ...
0
votes
2answers
594 views

Running NFS with iptables, change firewall?

I have a number of web servers on which I've set up iptables as the firewall, this is working great. However, I also have a dedicated file server running NFS and I need to firewall this machine as ...
0
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3answers
137 views

Web application and remote storage of files

I have a web application that can store lots and lots of files on the server. i.e. users upload data to it. The files are stored below a particular storage path. The web host will be an IBM xseries ...
5
votes
4answers
571 views

Crontab running before nfs mounted

Running Cronjob @reboot returns that file on nfs share does not exist. Example @reboot python /abs/path/to/script.py mail from crontab on startup reads "more or less" /usr/bin/python can't open ...
0
votes
1answer
2k views

Can NFS be forced to refresh stale files/directories when not using noac on the mount?

We mount without using noac. I have a file that I append to once every 20 minutes. Then it will be read with mmap about 5,000 times a minute. We only mmap a couple blocks for each read. Needless to ...
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votes
9answers
16k views

Is it feasible to have home folder hosted with NFS?

I'm planning to deploy some kiosk computers and would like to leave them with a small pendrive as boot disk, keeping the rest at an easy to back up server, ala LTSP. Right now I'm pondering two ...
17
votes
3answers
98k views

How to properly set permissions for NFS folder? Permission denied on mounting end.

I'm trying to connect to an NFS folder on my dev server. The owner of the folder on the dev server is darren and group darren. When I export and mount it to my Mac using the Disk Utility it mounts, ...
6
votes
2answers
1k views

How to set i/o priority for nfs client processes?

The configuration is: A linux server and a nas box (netgear) acting as nfs server. It is easy for a single process on the linux server to use all i/o bandwidth by simply copying a file from the nfs ...
4
votes
6answers
1k views

Which storage protocol to use for ESX storage?

What storage connection method should one prefer to use for connecting ESX servers to a shared storage server with 10GbE links? Speficically, I have 2 ESX servers for VMware ESX and one server for ...
12
votes
3answers
8k views

What are the advantages/disadvantages of hard versus soft mounts in UNIX?

This question may vary between distros but, in general, what are the advantages/disadvantages of using a hard or soft mount in the UNIX world? Are there certain situations where one is more ...
1
vote
2answers
9k views

Problem with NFS server lockd timing out on Debian linux

We've recently upgraded an NFS server (called "ian"), and after the upgrade, NFS is broken, whereas it wasn't before. The server is now running Debian "lenny", with kernel version 2.6.26-2; it's a ...
1
vote
3answers
4k views

Auto-mounting a windows share on Linux AD login

I've managed to configure my test Ubuntu 10.04 Beta 2 Server VM to accept logins (via ssh) from users who have domain accounts in active directory via Kerberos, nsswitch.conf and PAM configurations. ...
5
votes
1answer
551 views

Why is rpc.lockd obscured from netstat/lsof output?

Prologue: On a number of machines, which happen to act as NFS clients, netstat reports two ports that are open with no PID listed for an associated daemon. Ordinarily this might be a bit concerning. ...
4
votes
3answers
3k views

Vagrant OS X host nfs share permissions error - Failed to set owner to '1000'

I am a Vagrant and Puppet newbie, I have created a Base Box with Debian Squeeze plus standalone Puppet, using the instructions here to install Puppet with the Puppetlabs packages. The box itself ...
2
votes
2answers
671 views

Solaris NFS which client is all that traffic comming from?

On Solaris / OpendIndiana NFS server, is the a way to get per-client stats?
8
votes
3answers
2k views

Fault-tolerant NFS?

Probably a FAQ but I haven't found anything useful after a while of searching: Can I set up NFS in such a way that every single error (e.g. server CPU, hard disk, hd controller, network adapter, ...
6
votes
7answers
10k views

Slow NFS transfer performance of small files

I'm using Openfiler 2.3 on an HP ML370 G5, Smart Array P400, SAS disks combined using RAID 1+0. I set up an NFS share from ext3 partition using Openfiler's web based configuration, and I succeeded to ...
5
votes
4answers
13k views

What does 'no locks available' mean?

I'm trying to commit to a SVN server. On the server the subversion repository is NFS mounted. When doing a commit, I get this error message: svn: Can't get exclusive lock on file ...
4
votes
4answers
5k views

exportfs: Warning: /home/user/share does not support NFS export

'exportfs -r' returns me this error when I'm trying to export /home/user/share (ext4): exportfs: Warning: /home/user/share does not support NFS export. /etc/exports: /home/user/share ...
4
votes
3answers
11k views

File locks on an NFS?

My server uses NFS (Network File System), and I'm unable to use PHP's flock() -function. Is there a way to lock files on an NFS or is there a need to do so?
4
votes
3answers
5k views

Any Problems with many NFS mounts?

We are currently considering a solution that results in a separate mount point for every user's home directory. Whereas we used to have at most a couple mounts per file server on a client, we now ...
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, ...
2
votes
3answers
2k views

sysctl.conf not running on boot

At what point is sysctl.conf supposed to be read during boot, and why might it not be running? I have the following settings which are not being applied when I reboot: ...
2
votes
4answers
564 views

Is it possible to view the contents of an underlying NFS mount without unmounting the NFS content?

I have a shared directory on a server - let's call it /home/shared - which is mounted with content from another server via nfs. When it is unmounted /home/shared is supposed to be empty - however, ...
2
votes
3answers
4k views

How can I improve NFS performance on a gigabit LAN?

I have a Solaris 10 server with a Mac OS X clients on a gigabit LAN. The Solaris server exports a RAID-Z backed NFS share and all the clients connect to it. However, transferring files is slower ...
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vote
2answers
3k views

NFS from Windows Server 2008 R2

I have a Windows [Web] Server 2008 R2 from which I need to mount an NFS share on a Linux machine. The Windows help refers to "Services for Network File System (NFS)" under Administrative Tools, which ...
0
votes
3answers
760 views

rsynced files not getting proper ACL

I use rsync (rsync-3.0.6-5.el6_0.1.x86_64 on Scientific Linux 6) to transfer files from a VFAT disk to an NFS mounted ext3 file system. I have ACLs set up on the ext3 system and all works as expected ...
0
votes
3answers
157 views

Reporting Penetration Attempts to My Server

I need a log file of penetration attempts to my server. Ideally, this log should contain all attempts including logins, HTTPD activities, FTP activities, NFS, and other conventional open ports. ...
5
votes
4answers
2k views

DRDB and NFS: is there any efficient way to make failover transparent for NFS

We are implementing DRDB + heartbeat with two servers to have a file system with failover. These servers exposes a NFS service for other servers Currently DRDB is working just fine, but when testing ...
4
votes
1answer
414 views

Is NFS + NIS a modern good practice for Linux networks to achieve common logins and home directories?

I'm setting up a smallish network of Centos servers (less than 10) and I'd like to have common logins on all of them as well as network mapped home directories. I used to work with Solaris quite a ...
3
votes
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
votes
3answers
578 views

Why doesn't NFS recognize a new UID?

I have two servers running RHEL6. I have root access to both. The main server, which I will refer to as server, is a database server. The application server, which I will refer to as client, mounts a ...
3
votes
3answers
1k views

Access files located on the underlying filesystem of an NFS mountpoint

Perhaps this is an odd request, but it's the opposite of the question detailed at: Is it possible to view the contents of an underlying NFS mount without unmounting the NFS content? I have an ...
3
votes
3answers
415 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
1answer
690 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 ...
2
votes
1answer
936 views

How to achieve multiple NFS/TCP connections to the same server?

I'm trying to maximize the NFS/TCP bandwidth between a Linux client and a single NFS server over a 10Gbps link. Although each NFS mount has its own device (major/minor), everything comes down to a ...
2
votes
1answer
478 views

Why is Apache serving stale files from NFS despite a seemingly correct configuration?

I have two CentOS machines (virtualized) with a mounted NFS share with the following in /etc/fstab: <ipaddr>:/mnt/nfsshare /mnt/nfsshare nfs ...
2
votes
1answer
8k views

NFS exporting a directory that's already NFS mounted (on the server)

I have a NFS server, A, that's sharing out a folder. B is mounting the the folder. B is also sharing that folder out. However C is unable to mounted it. The error on C is: mount.nfs: ...
2
votes
4answers
4k views

Apache throwing 403 on serving images from an NFS share

I'm repeatedly getting 403 Permission Denied errors on trying to serve images from apache running on Machine A. The images are in a directory which is an NFS share from Machine B. The entry on ...
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vote
2answers
447 views

Why does dd show slow disk speed first time?

I'm checking the disk speed of a hdd on CentOS 6 using dd command. The setup is a DRBD setup - with this server being primary. To ensure that I get correct values, I execute the dd command 3 times ...
1
vote
5answers
984 views

Sharing folder from Linux to Mac, Samba or NFS? [closed]

When I need to access (read/write) to a folder of many files under Linux from Mac OSX, there are two options: Install Samba in Linux and share as Windows share Share via NFS Which one is the ...
1
vote
2answers
1k views

NFS server + client : Recommended hardening / final touches

We have just setup a lovely little nfs share / client for the first time. a) The UID for files on the client side, is showing up as 4294967294 when listed via ls, but the client is able to create and ...
1
vote
1answer
1k views

setting up a high speed load balancing server cluster - web/db/NFS

I'm looking for advice on the best way (mainly in terms of hardware) to set up a high speed load balancing server cluster on a budget (say £2,000 - £ 3,000) to host web services behind a single ip ...
1
vote
1answer
3k views

UID /GID with NFS and ZFS

I have a server with a zfs file system (nexenta core), and I'm sharing files overs nfs with zfs share share_nfs. When I mount the file system on my client (a ubuntu workstation) I can't have the ...