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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FTP Transfers Dropped- 421 time out

I have a VM that is mounting two NFS servers, lets call them NFS-A and NFS-B. The VM will transfer a file from NFS-A to NFS-B and as it should the VM will be the middle man as the file transfer occurs....
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123 views

How to use pNFS in NFSv4.1

As I know, pNFS is an extended protocol over NFSv4.1. So, I have two questions: How to use pNFS in NFSv4.1? Is there any special requirement for kernel version in server side?
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2answers
58 views

SAN - NFS and CIFS

I am an application developer and very new to storage and SAN technologies, So this is a very basic question. Recently I had a requirement to have common storage share mounted on both Linux and ...
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56 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....
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1answer
88 views

Mounting Windows NFS share from RHEL7 - uid/gid show as 4294967294

I need to mount a directory on a Windows Server 2012 system with rw access for local user apache. If I mount with defaults: server2012:/sharedir /appfolder nfs defaults ...
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2answers
62 views

For *nix server/Windows clients, what are the pros and cons of modern NFS v. Samba/SMB?

As the question says. There's a lot of threads around on NFS vs. Samba/SMB, but a lot of them are outdated or refer to old security models, or just give a one-line "use SMB with Windows". Both ...
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1answer
19 views

Not able to mount shared drive on server A to server B

I am not able to mount a drive that is located on server A to server B. I have followed this document step by step just replacing portmap to rpcbind as the system installed rpcbind instead of portmap. ...
2
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1answer
33 views

NFS - Multiple sub dirs - Only one squashing as expected

Getting an unexpected behavior when mounting more than a single share. NFS Server $ -> cd /mnt/raid/nas && ls -lZa drwxrwxr-x. nas filer unconfined_u:object_r:file_t:s0 file ...
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1answer
45 views

Different IOPs measured on server and storage

so I have this strange behavior that I can not explain to myself - hopyfully someone here can. We received some server (hardware) and mounted an NFS drive. We plan to use these servers as Splunk ...
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38 views

Testing Custom Linux Backup Script Which Connects to NFS Windows Share

Good morning, I have configured server for NFS on Windows Server 2012 R2 and I have created and shared an NFS share. Access permissions are configured using the NFS shares NTFS permissions. We have ...
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23 views

NFS client latency spikes on KVM host machine

We run a small OpenStack environment with KVM hypervisors and shared NFS storage. The problem is: guest KVM machines' CPU usage spikes make NFS client latency grow. For example: same NFS volume ...
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2answers
17 views

Open the folder as another user in Debian

I have logged to my debian as root using ssh. Than I have mounted some foler from my NAS using mount -t nfs 192.168.1.222:/nfs /media/nfs. Now I can access all subfolders. Exept /media/nfs/somefolder, ...
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1answer
78 views

NFS4 ID Mapping

Currently using NFS4 idmapping. If i manually update the file "/sys/module/nfsd/parameters/nfs4_disable_idmapping" on the NFS Server to "N" and flush the cache the UID and GID show up correctly on ...
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3answers
48 views

File permissions are being changed after gunzip of .gz file; how do I prevent that?

I have an NFS4 filesystem that has AD based authentication setup and ACLS to match. I am controlling access to the machines that mount the filesystem so the ACLs are very basic. One prevents users ...
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1answer
107 views

Improve NFS performance for Windows NFS client to Linux NFS Server

I have a CentOS 6.7 server as an NFS Server, and I have a 3-4 Windows 7 (Enterprise) PC's using Windows NFS client to mount the NFS exports. The problem I'm having is this: The Windows clients can ...
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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 ...
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1answer
51 views

Wrong SELinux labels on NFS homes?

I have NFS (v4) home directories. The NFS server is a Synology (DSM 5.2), the client is a FC 23. The client gets autofs settings from a freeIPA server: ipa automountmap-add default auto.home ipa ...
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3answers
73 views

NFS mounts depending on other NFS mount fail to mount at boot

I have setup 5 NFS mounts in /etc/fstab. The first one "parent" mounts on local mount point /foo and the other 4 "child" in mounts points on the first one: So let's say the second is /foo/test1. The ...
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45 views

NFS mount not honoring umask

I have an NFS mount exported as below that I mount with: sudo mount -t nfs host:/share /mnt/dir -o rw cat /etc/exports "/share/Name" 192.168.100.123(rw,async,no_subtree_check,insecure,no_root_squash)...
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1answer
230 views

How to place Docker images ontop of an NFS share in CoreOS?

I have installed CoreOS which by default using loop-back device with size of 100GB and I have reached that limit very easily. My first idea was to place all the images on top of my NAS using NFS with ...
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1answer
25 views

NFSv4 with Kerberos - idmap stops working after ~35 minutes

All machines are running CentOS 6.5. We have about 85 client machines doing a Kerberized NFSv4 mount (sec=krb5p) to a server. This weekend, the server was changed (serverA changed to serverB). ...
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2answers
366 views

ESXi 6.0 has stopped mounting NFS Shares

After a reboot of a ESXi 6.0 server it will no longer mount several NFS shares being hosted on a Windows Server 2012 R2 box. Previously these shares were working fine, but now any NFS mount is met ...
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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 ...
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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 ...
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1answer
47 views

Access history for NFS server

I have a server (OS: Debian), in which nfs-kernel-server is installed and run. When a NFS client access or read, write to a file or directory in the NFS share directory, I want to capture and save all ...
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1answer
130 views

Input/output error when attempting to mount a Windows NFS share

I created the Windows Server 2012 share using: PS C:\Windows\system32> nfsshare testshare2=C:\testshare2 -o anon=yes anonuid=0 anongid=0 rw=uuu.uuu.uuu.uuu testshare2 was shared successfully ...
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1answer
56 views

Mounting a share with white spaces in name using Solaris

I am trying to mount a file system on Solaris that includes white space in both target and source names. for example: nas:/shares/windows/international/Financial Data/OEM/Connect Direct - /nfs/...
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0answers
124 views

Speeding up GlusterFS in AWS

I needed a good NFS storage cloud in AWS, and since EFS is just in preview mode, I did some research, and GFS looked like it would be the best bet. Currently, I have two servers that are part of one ...
2
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1answer
39 views

Determine NFS usage based on client

We have big NFS server (~50TB of data, millions of files). 12x 6TB SATA disks w/ SSD cache (MegaRAID CacheCade). CentOS 7. 1x Xeon E5-2620 Our problem is that we have ~100 processes from 6 servers ...
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2answers
121 views

NFS mount in Windows - can't copy files with 600 permissions

I have a Netapp with some NFS exports for VMware storage. I want to mount the snapshots on a Windows 2012 R2 server in order to copy all of the virtual machine files to tape. I can mount the share ...
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29 views

Reliable, resistant to disconnect NFS configuration

I am using NFS v4 as additional file storage in near-high-load app (~300 messages per second, each contains 30kB - 1mB file). I see some weird behaviour on manual or occasional NFS server disconnect: ...
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96 views

OS X NFS Automount: “locallocks” ignored?

I'm having an issue with file-locking and auto mounting on OS X. Here is my auto_master file: # # Automounter master map # +auto_master # Use directory service /net -hosts -...
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1answer
147 views

Disabling shadow copies on a NFS share folder

I want to disable shadow copies being created on a specific Windows NFS share folder which is being used by an ESXi 6 server for virtual machine backups (via xsibackup). The reason for wanting to do ...
0
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1answer
128 views

How to make NFS accesses time out much faster

We have a load-balanced web app that serves some images off an NFS mounted drive. When the NFS server goes down, it ends up bringing all of the web instances down. Currently the volume is mounted ...
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0answers
34 views

nfs-kernel-server keeps failing in Ubuntu

I'm trying to create NFS share in Ubuntu 14.04 strictly following this tutorial: https://help.ubuntu.com/community/SettingUpNFSHowTo. root@srv:~# service nfs-kernel-server start * Exporting ...
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2answers
32 views

Prevent root in linux from changing folder permissions in GPFS filessystem

I have created a NFS export in a GPFS/SpectrumScale filesystem I created. I have enabled AD based authentication with our domain. Everything works. The NFS export was created with NFS4. The NFS ...
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1answer
31 views

Unable to mount NFS export unless I sudo to root

I created an NFS export on a GPFS/SpectrumScale filesystem I set up. I tested the NFS export on a xLinux, pLinux, z/OS and AIX succesfully. I then enabled AD based authentication on the NFS export ...
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0answers
16 views

OS X 10.10 Mail.app - preferences resetting themselves

I cannot change the preferences for Mail... if I select a different setting, it instantly reverts to what it was before. ls -l Library/Mail/V2/MailData shows that I own all the plists, they're ...
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votes
1answer
15 views

Write on an unavailable nfs share

We have a legacy application which writes files on an nfs share. Some days ago that nfs share could be down and we have some missing files. According to the application's assistance when the nfs ...
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0answers
20 views

Crashing NFSv3 server locks client shares

I have a NFSv3 server running on NetBSD 7. There is a Linux (3.16.0) and an OpenBSD (5.8-stable) box connected to it. When the server crashes the clients are unable to unmount the shares. The shares ...
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1answer
30 views

OS X 10.10 hard-coded absolute paths to network home directory

We have our users home directories on NFS servers. In the past, when we used 10.7, this was just a little problematic... every now and then, either from someone logging in at two different machines ...
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0answers
233 views

How slow can be a QCOW2 vm disk (proxmox/KVM) over NFS (dedicated 1Gbit)?

I'm running 3 proxmox 3.4 nodes using NFS shared storage with a dedicated 1GB network switch. root@lnxvt10:~# pveversion pve-manager/3.4-11/6502936f (running kernel: 2.6.32-43-pve) root@lnxvt10:~# ...
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0answers
87 views

How to set up automount from a Mac to a Linux server

I've been trying to solve a rather simple problem: my server runs Debian there is a user A on the server that belongs to a group G (both 1001) my client runs OSX there are users A and B on the ...
2
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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 ...
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43 views

Wrong permission when accessing ZFS snapshot over NFS (Solaris server, Ubuntu client)

TL;DR: I don't understand why I can access one file but not an other (in the same directory), although they appear to have identical permissions. I have an NFS server running Solaris 10 10/08 and a ...
0
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1answer
97 views

how to make a Virtual ip on a 2 nodes cluster

i have a specific question, her's my situation : 1- 2 vms with drbd - pacemaker - corosync - NFs - here's my crm configuration : node san1 node san2 primitive drbd_res1 ocf:linbit:drbd \ params ...
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1answer
3k views

fstab entry to mount NFS with password

i need mount at boot a disk using NFS, to mount manually from console i type: mount //192.168.0.1/NASShare -o username=administrator,password=pass /mnt/NAS To /etc/fstab i added this line: 192.168....
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0answers
151 views

sudo NFS SUID not working

Today I decided to move my NFS files from an ext4 HDD to an ext2 HDD using mc. Since then I am having trouble running the sudo command on all clients. When I try to run it I get an error saying "...
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1answer
51 views

NFS in Windows 7 Professional

Can I have and use NFS in Windows 7 pro? I tried downloading and installing it on Windows 7 Enterprise and it appears to work but I had no such luck with pro, I can't even download.
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1answer
82 views

showmount -e fails from one node

When I run: showmount -e <IP> rpc mount export: RPC: Unable to receive; errno = Connection reset by peer mount <IP>:/path /mnt mount.nfs: Connection reset by peer But mount -t nfs -c ...