Questions tagged [nfs]
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 Computing Remote Procedure Call (ONC RPC) system. The Network File System is an open standard defined in RFCs.
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Mapping UID and GID of local user to the mounted NFS share
I have a server with NFSv4.
I am mounting contents of the home folder of remote user to local host.
Able to read and write contents, but when I am checking ownership of files at the mounted volume ...
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ZFS - destroying deduplicated zvol or data set stalls the server. How to recover?
I'm using Nexentastor on a secondary storage server running on an HP ProLiant DL180 G6 with 12 Midline (7200 RPM) SAS drives. The system has an E5620 CPU and 8GB RAM. There is no ZIL or L2ARC device.
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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 ...
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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 ...
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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?
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NFS Caching Issue
We are having an issue that happens intermittently during a code deployment. NFS caches the files as they are read, but if a file is read during a code deploy it stays in a dirty state as if the file ...
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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, ...
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What is the use-case for NAS on a mid-to-high end storage array?
Many large storage vendors (EMC, NetApp, etc) provide storage equipment that does NAS in addition to FCP, FCoE, or iSCSI.
When would it be appropriate to use the NAS functionality of these boxes? In ...
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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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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 ...
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"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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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?
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NFSv4 User Mapping
This question seems to have been asked many times already, but the other answers somehow did not apply to me.
Basically I just set up a new NFSv4 server and I am facing the classic problem where UIDs ...
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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 '/svn/repo/db/...
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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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Slow copying between NFS/CIFS directories on same server
Please bear with me, I know it's a lot to read. This problem may be applicable to others, so it would be great to have an answer. I had to give away the bounty because it was going to expire.
When I ...
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Should I mount GlusterFS as NFS or FUSE?
I'm using GlusterFS for a file storage cluster and my web apps.
I have two volumes, the storage and the web ones.
Currently I have the web one mounted as NFS, because FUSE was way too slow.
Now I ...
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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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LDAP + KERBEROS + NFS. Why do I need idmapd?
What I am trying to do
I have a freeIPA domain, with a few clients and a Synology NAS (also enrolled in freeIPA).
I created a shared folder on the NAS, with NFSv4 + krb5 support.
From the client, I ...
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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 ...
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Windows hangs accessing a samba share with nfs backend
I have a somewhat less than ideal situation that requires me to mount a file system over NFS and then turn around and share that same file system over SAMBA to the rest of the users on my network.
---...
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What exactly does nfs4_disable_idmapping parameter do?
I've been experimenting with user/group ID mapping (translation) in NFSv4. What I want to achieve is name based ID translation, that is independent of the actual UID/GID on the server and clients.
...
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How to mount NFS share on Azure Container Instances
I'm registered for the Azure Files NFSv4 preview, and I cannot seem to find a way to mount NFS file shares on ACI. I have tried the following:
Created a virtual network in eastus with two subnets, ...
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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 ...
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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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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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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 ...
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NFS Mouting Failing due to illegal port
I have a VM machine that has a public IP interface and a private IP interface. The private interface is assigned 192.168.50.78. Then I have a dedicated host that acts as my "router" using ...
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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, ...
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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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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 ...
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Understanding NFS4 (Linux server)
I've been a bit bothered by NFS4 on Linux. Some information 'out there' seems to conflict with other information, and other information appears hard to find. So here are a couple of things that caught ...
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NFS poor write performance
I have two machines connected with 10Gbit Ethernet. Let one of them be NFS server and another will be NFs client.
Testing network speed over TCP with iperf shows ~9.8 Gbit/s throughput in both ...
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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 192.168.1....
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Does NFS and SMB support sparse files?
This question was previously asked in stack overflow but the good folks there have recommended that i try the community over here instead.
I am researching on sparse files with regards to various ...
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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 ...
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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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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, ...
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Automatic Kerberos Ticket Renewal (Indefinitely)
I am currently switching our environment from NIS over to Kerberos + LDAP.
During this migration I've now run into the following situation.
We mount our homes via NFS which obviously should also be ...
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Flush-0:n processes causing massive bottleneck
I have a LAMP cluster that shares files via NFS and occasionally one of them will be stricken for a while when mysterious flush processes start appearing.
Can anyone help me? The only way to resolve ...
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Samba sharing an NFS mount point
I'm sorry if this is a repeat post, seems my first attempt failed...
A little context first.
Firstly, I have inherited one of the classic networks from hell. Amongst a number of other things, I ...
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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 ...
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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 ...
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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 ...
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How to mount multiple folders with nfs4 on centos?
I'm trying to get nfs4 working here.
Machine 1 (server) I have a folder and in it 2 other folders I'm trying to share independently. /shared/folder1 /shared/folder2
Problem is, I can't seem to ...
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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 ...
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NFS - Detecting remotely created files programmatically?
I'm trying to monitor an NFS share and detect the creation of a file by a process running on a remote system. The problem is that the detection isn't working after the file has been created, my script ...
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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 ...
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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:
net.bridge.bridge-nf-call-...
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centos 6 nfs: logs not showing anywhere
Can someone please tell me where NFS logs in centos 6? Or perhaps where I can tell NFS to send logs?
At the present time, there appears to be no such setting. Trying to get the thing to work without ...
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