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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2answers
1k views

iozone benchmark results interpretation

I'm using iozone version 3.373 to benchmark NFSv4 and NBD, but the results are a bit weird! It says that outputs are in KBytes/sec but I am getting values such as 3,411,938 for random read. I am using ...
3
votes
1answer
1k views

High Availability NFS Server (Heartbeat/DRBD) long hang on clients when takeover occurs

We have a High Availability NFS environment using DRBD, heartbeat and nfs exposed to clients (Simular to the following https://help.ubuntu.com/community/HighlyAvailableNFS ). This seems to be a ...
1
vote
0answers
788 views

nfs4 rpc.idmapd not working on one machine

I have an nfs4 server, with fsid=0 exported with no_subtree_check,no_all_squash,no_root_squash I have various clients working fine with this, a mixture of debian and arch, mounting with nfs4 and ...
0
votes
1answer
40 views

Present a drive on a server as a NFS to other network devices

Is there a tool that would allow me to take a shared folder on a server running server 2008 and make it look like a NFS drive? Thanks!
0
votes
1answer
724 views

NFS and mounted subdirectories

I have two physical disks mounted as such: sda1 -> /mnt/storage sdb1 -> /mnt/storage/homes I've exported /mnt/storage as an NFS share. The client sees all of the contents of /mnt/storage, ...
0
votes
2answers
313 views

nfsclient on ubuntu server

I have an nfs server running on Cent OS. iptables is setup, and I have fixed ports setup. So, the server works fine. I tried mounting the nfs volumes on a Fedora machine, and everything works. When I ...
0
votes
1answer
645 views

Problems Mounting NFS Shared Drive Using Fstab (Ubuntu - Lucid Linux)

Currently I have clients hooked up to a server through NFS such that user home folders mount to the clients (if you want more info on that, let me know). I am trying to set up a shared drive, in ...
1
vote
1answer
3k views

NFS issue brings down entire vSphere ESX estate

I experienced an odd issue this morning where an NFS issue appeared to have taken down the majority of my VMs hosted on a small vSphere 5.0 estate. The infrastructure itself is 4x IBM HS21 blades ...
1
vote
2answers
51 views

NFS directory structuring to have both local and networked directories?

I have two CentOS boxes, essentially a QA and a production box, and I want to use nfs to mirror over the entire directory structure of my prod box to QA, however, I want to exclude a certain nested ...
2
votes
6answers
1k views

OpenBSD configuration: Client unable to mount via NFS using Berkeley Automounter (amd)

What I am trying to do is to have my openBSD client (OpenBSD 4.9) auto mount a Linux NFS file system (Scientific Linux 6.1). So far, I am not sure if it is configured correctly. To get things out of ...
2
votes
4answers
3k views

ZFS on Linux for RHEL/OEL NFS Sharing

I'm trying ZFS on Linux for Oracle Linux (OLE) 6.1 (Red Hat RHEL 6.1 compatible clone). I successfully compiled and installed spl and zfs on it for Oracle Unbreakable Kernel. Zfs is working and I ...
2
votes
1answer
348 views

Mount NFS on Windows XP

I want to know if anybody have done any hands on test mounting NFS on windows xp using "Windows services for unix" http://www.microsoft.com/download/en/details.aspx?id=274 I know that it should work ...
0
votes
1answer
268 views

Setting Linux UID on NFS volume from EMC NX4

I have an EMC NX4 from which there are several CIFS shares with corresponding NFS mount points. The CIFS user ids seem fine but when viewed from Linux they are all 327xx numbers and can't be set from ...
5
votes
3answers
2k views

Serving static files with nginx over NFS?

I have a website that is getting about 7k requests per seconds on a nginx server. This server both handles rewrites to an Apache server as well as serving static files, images, etc. directly. Static ...
2
votes
2answers
733 views

Ubuntu mount of NFS home directories with AutoFS results in /etc/skel not being used

I am wanting a custom look for my Ubuntu 10.04 users, so things like the shutdown menu are not displayed and just having one panel at the bottom of the screen. Also removing some of the default ...
3
votes
1answer
550 views

Poor NFS performance when sequentially reading large files

I have an NFS3 server with multiple clients. Each client is sequentially reading a different large file, and performance is very poor. Here is what I am observing in iostat on the server for the disk ...
2
votes
3answers
3k views

How dangerous is NFS async when RAID BBU and UPS are present?

I have an NFSv3 server and around 15 clients. I am looking for pros and cons enabling async on the server side. I have read about it, but it is still a bit unclear to me. I know it can lead to data ...
1
vote
3answers
555 views

Failure to automatically mount a NFS area consistently after a reboot

I have one server A that is configured to auto-mount an NFS path from server B, using the following entry in /etc/fstab: serverB:/data/media/serverA /data/media nfs defaults 0 ...
0
votes
1answer
470 views

Modifying NFS (XFS) File Attributes from within Windows

Scenario: I'm on Server 2008 R2 and I've mapped a network drive using Services for Network File System (NFS). I've mounted the drive to "N:" (for NFS or NAS) using the mount command line utility ...
0
votes
1answer
99 views

determining server-supported NFS version from the client

Is there a way to determine which version of the NFS protocol a particular server is running just by mounting it as a client? I'm trying to figure out if a server supports NFS v4, but I can't figure ...
5
votes
1answer
1k views

Does anyone know where a good resource for NFS4 ACLs can be found?

I am attempting to utilize NFS4 ACL's in an environment already utilizing POSIX ACL's. I've found a handful of sites on the internet that explain some technical details about NFS4 ACL's and how ...
3
votes
1answer
800 views

Central “/home” using SSHFS?

The standard way to setup a central "/home" directory on a Linux workstation is using NFS. The problem is that I don't like the lack of real security in NFS. So instead I want to try to use SSHFS. ...
0
votes
1answer
166 views

Insecure NFS ports on OpenBSD server

I have a OpenBSD 4.9 server running. Now I am trying to set up NFS shares on that server. I can set it up using secure ports. However it isn't possible to mount the shares from OS X without using the ...
0
votes
4answers
428 views

redundancy scalability cluster software suporting nginx? [closed]

I'm having some problems with a filesharing storage configuration that we recently set-up. We moved onto a NAS (1x24TB) recently for our video streaming service. We set-up 9 front end servers that ...
6
votes
2answers
1k views

Mac OS X client crashes while mounting and writing to Linux server via NFSv4

We are a Linux shop with about 30 Macs to support. We have our Leopard and Snow Leopard systems set up with LDAP authentication and automounted NFSv3 home directories so our staff have the same login ...
0
votes
1answer
1k views

Measure & benchmark the speed & latency of file access on a mounted NFS share

I have a Linux Centos system that mounts some NFS shares, what technique can I use to measure the I/O speed/latency/rate when reading and writing files from that share? Could this technique also be ...
2
votes
1answer
242 views

Who sets NFS modification time - client or server?

I was curious about what exactly time is going to NFS file metadata when client writes a file. My assumption is that client time is recorded and not NFS server's time. But I wasn't able to find out ...
2
votes
1answer
2k views

NFS mounted on windows 7 authentication headache

I've got a NFS share on a Netapp and a laptop running windows 7 enterprise that needs to mount the volume. I've installed all the NFS services on windows 7, and am able to mount and browse the drive. ...
2
votes
2answers
2k views

'Stale NFS file handle' error but no NFS mount present

One virtual machine runnning on Xen host experienced 'Stale NFS file handle' problems and I can't explain it while there is no NFS mount present. The problem occurs when listing the content on a ...
0
votes
1answer
222 views

nfs error on rhel6

I have a server with NFS, LDAP, and Autofs configured for export the /home, but every time i try mount nfs in my client desktop, the receive this error in Server: Cannot export /home, possibly ...
1
vote
1answer
408 views

Why does tar -c dir | pigz > /mnt/nfs/dir.tgz use network, then cpu in cycles instead of both at once (with one bottlenecking)

I want to transfer a multi-terabyte directory to an nfs mounted directory most efficiently over a 1Gbit network (probably the limiting factor) 3 options - tar and compress in place, then copy copy, ...
0
votes
2answers
251 views

sshfs handling hangs

I have 2 servers (linux), one for PHP application, second for static files serving. I want to mount directory from static server in application directry so I could write / read files on static server ...
1
vote
2answers
992 views

unable to access NFS share(s)

Unable to access NFS shares on Ubuntu from Windows 7. It just acts like the share can't be found on network. (NET HELP MSG 1222) on client: added NFS features tried "mount IP:/share z:" and the gui ...
0
votes
1answer
139 views

About sharing a folder with NFS which is already a NFS folder shared by another server

I have a server (named "head") which is linked to two networks, which are not inter-connected. On network-1, a folder is shared by server (named "server1") through NFS. This folder is then mounted on ...
1
vote
0answers
298 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 ...
0
votes
1answer
103 views

Boot two servers off same disk?

I was reading an article on Linux Journal about Memcached and it mentions Netbooting multiple servers off a single root image: LiveJournal's Web nodes are all diskless, Netbooting off a common yet ...
1
vote
1answer
306 views

NFS volume file permissions

I have a Redhat 6.0 system (SELinux enabled), with a NFS volume mounted at /myvolume. The command ls -la /myvolume says it has owner "nobody" and group "nobody". On this system I have Apache running ...
1
vote
1answer
467 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 ...
1
vote
0answers
31 views

Can reaching shared storage capacity prevent a VM from starting up in XenServer?

I have a VM installed on XenServer; it's drive is on an NFS share, which has just reached capaciy--could this prevent the VM from starting up?
1
vote
1answer
539 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 ...
2
votes
1answer
1k views

Access NFS share without mapping to drive

OK, I have found more than enough tutorials online about mapping an NFS share to a drive on WIndows 7 and Windows 2008. What I need is to know how to access a share without mapping it to a drive. ...
1
vote
1answer
1k views

exportfs -u not unexporting directories?

So, I'm trying to programmatically share and unshare mount points via NFS. (I realize this may not be the best approach, but I'm working in someone else's code.) On my server, I'm exporting the ...
1
vote
2answers
2k views

NFS Common Utilities fails to start

I created a virtual machine and installed Debian 6 on it, and then copied the hard drive to be used by another virtual machine. For the newly copied virtual machine, I changed the IP address, hostname ...
2
votes
1answer
399 views

Redundant NFS Setup?

Is it possible to create a fault tolerant, redundant NFS server (e.g. master/slave)? Several of my web servers mount their WEBroot directories from a single NFS server (which is regularly backed up). ...
0
votes
1answer
83 views

Secure Access to NFS Share?

Is it safe to use an NFS share as the root of a web directory on another server? Under this config, multiple users would place their files on the NFS (not the web server). How would you go about ...
1
vote
1answer
230 views

Mounting an NFS Volume at Startup

What's the best way to mount an NFS share during boot?
1
vote
1answer
453 views

S3 Instead of NFS to Host H.A. Website on AWS

I've been looking at creating a highly available setup with EC2. It would involve several web server nodes acting as front-ends to multiple NFS and database serves (backends). Ideally, the platform ...
1
vote
2answers
1k views

Read Errors Backing Up To NFS via rsync

I'm backing up a linux box to a NAS mounted via NFS. I'm using rsync (as part of a scheme along the lines of http://www.mikerubel.org/computers/rsync_snapshots/ with hard-links). That is I ssh into ...
-2
votes
1answer
212 views

Setting up a low cost development cluster with (possibly) diskless slave nodes [closed]

Consider the following: I (hypothetically) have one heavyweight server/master node with a couple disks in it and a group of lightweight diskless clients/nodes on a 10 gigabit LAN. The server is ...
1
vote
3answers
991 views

redundant nfs share

We are storing files on a network share, our application is mountig this drive using nfs. Now we have the requirement to have this drive redundant. We can add a second server and then synchronize ...