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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NFS lock not working properly

I'm getting the following error on an oracle database. ORA-27086: unable to lock file - already in use It tries to lock a file that resides in an NFS mount. The NFS is on a loopback setup (long ...
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20 views

Kerberized NFSv4 without creating new service principals

I need to deploy NFSv4 with Kerberos authentication in an existing AD environment, however, it must be done without making any changes on the KDC... So I figured, I would need to reuse host ...
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4answers
11k 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 ...
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36 views

How to find current NFS mount parameters

We've been having some problems with the parameters for some NFS mounts on a server, and we've changed the /etc/fstab settings, and rebooted the server (a SUSE Linux 11 server). However I've just ...
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1answer
21 views

NAUbackup - Xenserver 6.5 Backup Solutions

Has anybody every successfully used NAUBackups for xenserver 6.5 and had their backups go to a SAN storage repository? I see the default script backs up to an NFS share but I am trying to avoid NFS ...
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3answers
800 views

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 ...
7
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3answers
962 views

Recommendations: configuring a 10GbE NAS stack for virtualisation storage

I'll try as hard as I can to word this so it is not considered a shopping list. We have been successfully running a dev/test ESXi environment for some time, with a couple of Dell PE2950III servers ...
8
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2answers
2k views

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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1answer
547 views

Puppet Operation not permitted on owner/group change

I'm running Ubuntu 12.04 with vboxheadless 4.2.10 and vagrant 1.2.7 to provision instances on a server. When I run vagrant up I get the following errors: err: ...
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2answers
31 views

Can idle NFS mounts on several clients impact performance

We had a NFS server at work which was working with slight lag. However as more mount points were getting created at several clients(serviced by the same server) we noticed the performance coming to a ...
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1answer
1k views

NFSv3 + ACL: mask is gone on clients

I'm sharing a NFS folder among a user group. The default umask on the clients is 0700, and this is a problem because newly created files won't be readable/writable by another users. So, I'm using ...
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3answers
7k views

exportfs: internal: no supported addresses in nfs_client

I am trying to set up a NFS server on an AWS instance running SLES11. After installing nfs-utils, I tried to export a test share. Here is what my /etc/exports file looks like: /opt/share1 ...
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2answers
1k views

Mounting NFS3 using Kerberos and AD

I've got a Linux server (Centos 5.6) that needs to automount home directories from a Windows (Server 2008) NFS share using Kerberos. The share mounts (with the nobody user and group) if authentication ...
6
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8answers
486 views

Term for a _____ of servers whose network shares are distinct from another _____ of servers [closed]

I'm looking for a term for use in documentation, and felt that SF users would have the more experienced set of terminologies compared to other sites. At work there are development servers in the ...
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1answer
2k views

CentOS 5.4 NFS v4 client file permissions differ from original files & NFS Share file contents

Having a strange problem with NFS share and file permissions on the 1 out of the 2 NFS clients, web1 has file permissions issues but web2 is fine. web1 and web2 are load balanced web servers. So ...
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1answer
27 views

SAMBA+NIS on Linux with Windows 7/8/10 clients

I'm trying to figure out if it is possible to run a samba server on a Linux distribution with a NIS service and use them in conjunction with a Widnows 7/8/10 client to make it work as it's local ...
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1answer
1k views

NFS mounts not visible for other users in system

Recently I faced an issue of limited visibility of mounted NFS shares on windows 2008 server. Situation is like this: as user A I have mounted NFS share (from linux server) as User A I'm executing ...
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1answer
50 views

Mount NFS volume on Ubuntu Linux server from Mac OS X Yosemite client [on hold]

I have an Ubuntu 14.04 LTS server (a local VM in my case). How do I mount a directory on the Linux server from a Mac OS X Yosemite client, using NFS?
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1answer
27 views

when to use NFS for web app

I am currently building a simple webapp architecture on AWS, as follow: Elastic Load Balancer - multiple front ends - RDS database. I have also set up an NFS server to store all images uploaded by ...
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4 views

NFS: Broken NFSv4 server ctmlog is returning a delegation for OPEN(CLAIM_DELEGATE_CUR) what means?

On Red Hat Enterprise Linux Server release 6.6 found this entry in dmesg, but I cant find any solution how to fix it. dmesg is full with this entry marked in Title! Any idea?
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1answer
2k views

NFS Share with root for anonuid / anongid

I've exported a share from my server and set anonuid and anongid to be 0 (root). However, when I mount the share on the client, it doesn't appear my settings are working as I'm getting permission ...
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0answers
22 views

NFS datastore on ESXi 4.1 breaks win2k8r2 host

I have an NFS server running on Win2k8R2 and an ESXi 4.1 host that uses NFS as a datastore for ghettoVCB backups. No server authentication; unmapped user access by uid/gid; vmkernel port with it's ...
0
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1answer
35 views

Simpler way to add eth0 support in initrd.img (Centos)

I am trying to deploy clone image via pxeboot on hard disk. For this I want to use dd tool. I am aware that there are few tools like fog and clonezilla which does similar thing but this is university ...
0
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1answer
33 views

Scalability of multiple keytabs, Linux NFS client/server and Windows AD KDC

I have kerberized NFSv3 working with a generic Linux NFS server and multiple Linux clients with a Windows AD 2012 domain for the Kerberos Realm. Windows KDC requires that when you create a keytab for ...
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60 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 ...
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2answers
1k views

NFS on Btrfs on multi-devices .vs. Glusterfs on distributed-volume?

I considering a storage for Email. This storage system run on my own private cloud (already replicated), then i does not care about replication. I'm thinking about 2 options: 1- I will create few ...
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2answers
2k views

Share disks through NFS on a CoreOS cluster?

Is it possible for a CoreOS cluster to share disk space, e.g. using NFS? If so, how would one go about this? (e.g. in the scenario where one node has a lot of disk space). This would be useful to ...
14
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3answers
624 views

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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0answers
11 views

When do NFS mount major/minor device ids change?

I have a NFS folder mounted in /mnt/data: # mountpoint -d /mnt/data/ 0:25 When should I expect the major and minor device IDs to change? Reboot? Remount? Random? I know they did change at least ...
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0answers
64 views

DRBD server not starting - error in creating netlink socket

I have a newly configured DRBD-Cluster 8.4.5 on 2 VM running ubuntu 14.04, following this example: http://geekpeek.net/configure-drbd-ubuntu/ Unfortunatelly I can not start the service. It seems to ...
3
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2answers
347 views

NFS client keytab: multiple machines

How should one go about setting up client-side keytab files for each client machine to access network services? My working example is NFSv4, which requires each client to have a Kerberos keytab ...
0
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1answer
21 views

How I can split config file to many files?

I have got config in /etc/exports. I want to see another file as a config too for it, for example /etc/my_exports. How i can do it? What I need to write in /etc/exports to see /etc/my_exports like ...
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1answer
1k views

Mounted NFS directory not writable by Apache / PHP

Need some help here with NFS. Here's what I have (all servers running CentOS 5.6 with SELinux): 172.17.20.1 - Primary server with static IP. Varnish redirects requests to the web servers. 172.17.20.2 ...
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votes
1answer
1k views

How to force use of tcp instead of udp for rpcbind?

I'm trying to use tcp/111 for rpcbind under Debian Wheezy instead of udp/111. The portmap in Squeeze uses tcp/111 without any special configuration, but Wheezy fails. Even numerous sites (as well as ...
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0answers
19 views

Can't start glusterd anymore - how to deinstall entirly and start from scratch?

I am new to glusterfs and have today installed v 3.7.2 on two Ubuntu 14.04 LTS VMs through ppa. Before I had it installed in version 3.4.2 which I purged. I also tried to compile it, but this failed. ...
0
votes
1answer
59 views

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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1answer
1k views

Netboot Debian (wheezy) from NFS v4

Is it possible to boot Debian Wheezy from NFS v4? Bootwing with NFS v3 works just fine. NFS v4 not. This is in my /etc/exports: /nfs ...
0
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1answer
1k views

FOG Server NFS Issue

I am having an issue with the Free Open Ghost server. I set it up on Ubuntu server, and have Ubuntu mounting an SMB share to it's /images directory (my server has a small internal boot disk). Fog's ...
0
votes
1answer
2k views

Amazon Linux AMI for NFS between multiple EC2 servers

So I've been trying to create a Dropbox like system to allow multiple EC2 instances to work with the same files. I'm writing the programs that actually modify the files myself, and I'm not worried ...
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0answers
34 views

Why mount with nfs is not work into my bash script?

I have got this code in bash script: if ! grep ^$hzvzenter_SERVER_IP:/linuxcoe /proc/mounts 1>/dev/null 2>&1; then mkdir -p /linuxcoe-iso CMD_ERR=`mount -t nfs ...
4
votes
1answer
854 views

Intermittent NFS lockups on Isilon cluster

We have an Isilon cluster with 8 IQ 12000x nodes which exports storage via several NFS shares for a handful of Linux and Solaris clients. There is a Linux system that has one of these NFS filesystems ...
3
votes
1answer
2k views

Why does the “nocto” NFS mount option in Linux not prevent flush-on-close?

I've been learning about the close-to-open policy of NFS, which causes each file to be flushed to the server as it's closed, to ensure consistency across clients. (See ...
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1answer
1k views

Ubuntu client can't mount Nexenta NFS

I have a Nexenta storage box (Solaris), which exports an NFS share. Mac OS X and older Ubuntu clients can mount the NFS share just fine without any special options. Later version of Ubuntu simply ...
3
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0answers
31 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 ...
4
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3answers
3k views

How to get decent NFS performance for workloads like git?

I manage a vagrant setup for our developers running OSX to manage VirtualBox systems for development. In order to support inotify inside the linux machine, we eschew the usual method of sharing ...
3
votes
1answer
1k 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 ...
0
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1answer
42 views

NFS Server | Hung threads

We have four lpars each running 1 java instance each. They do a lot of read/write operations to a shared NFS server. When the NFS server goes down abruptly, all the threads that were trying to read a ...
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0answers
43 views

Windows Server 2012 R2 NIC Teaming NFS Share ESXi

Having some strange issues with NIC Teaming when using 2012 R2 NFS for an ESXi 5.5 Datastore. Firstly I teamed two Intel NIC's on a separate VLAN via a Gigabit switch to two Intel NIC's on ESXi and ...
18
votes
4answers
110k views

Which ports do I need to open in the firewall to use NFS?

I'm running Ubuntu 11.10 - setting up NFS to share a directory among many other servers. Which ports are required to be opened on the firewall?
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2answers
19k views

“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 ...