0
votes
1answer
67 views

What is changing the network interfaces?

I installed Ubuntu 12.04 to virtual machine. I have edited /etc/network/interfaces like this: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp Then I created a livecd.iso using ...
-1
votes
2answers
56 views

What network based file system for linux allows for read only access,remote access and allows for mounting at any time?

I'm brainstorming at the moment, but basically this is what I need: A remotely accessible and mountable file system for Linux That requires no password or key to access. Is read only Allows multiple ...
1
vote
1answer
28 views

Spontaneously unmounting NFS exports and nicstat network activity

We have one server which exports two partitions which are massive (one is 61 TB, the other is 28 TB), and we have a lot of users reading and writing to these when mounted on another machine. We have ...
4
votes
1answer
334 views

Relationship between MTU and NFS rsize/wsize options

I'm trying to understand networking settings related to NFS and various buffer sizes (and there are quite a few). I'm running wireshark and inspecting the TCP packets arriving at the NFS server. ...
1
vote
0answers
79 views

NFSv3 Asynchronous Write Depends on Block Size?

I am trying to figure out if my NFSv3 deployment is performing SAFE asynchronous writes. I suspect that it is doing strictly synchronous writes, as I am getting poor performance in general. I used ...
3
votes
1answer
114 views

Poor NFS Performance Using Multiple Disks

I have a server system running Ubuntu 12.10 with 12 disks attached. I am sharing all of these disks on my 10 gigabit network using NFSv4. However, I am getting generally poor performance over NFS ...
-2
votes
1answer
97 views

Connecting a usb external drive in NFS to a different server [closed]

I have two unix CentOS servers in the same farm. One of them has an usb HD connected. I would like to access the same usb HD from the second server (I want to be able to write directly to that HD). ...
3
votes
1answer
2k 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 ...
2
votes
2answers
2k views

How to change 'Advertised pause frame use' and autonegotiation setting on gigabit NIC

I'm investigating some poor nfs performance on a new server, as compared to an old server. Both the old and the new server are nfs clients, and they connect to the same exact NetApp nfs server. My ...
0
votes
2answers
514 views

Using NFS-root with bonded interfaces

I would like to configure our servers to boot with an NFS-root with two bonded interfaces. I managed to successfully set up the NFS-root with one network interface using a NFS-root enabled initrd ...
0
votes
1answer
482 views

Does Bonding mode 0 works on Cisco SG100 and achieve 2GB speed for NFS?

I am planing to buy a switcher to link 2 servers each with 2 NICs (Intel Corporation I350 Gigabit Network Connection). I read that "balance-rr is the only mode were one single TCP connection can ...
1
vote
0answers
169 views

Samba is faster than NFS when accessing from Mac, any reason

Refer to this question (closed): Sharing folder from Linux to Mac, Samba or NFS?, most people suggested that NFS is faster and therefore I did a quick test: MacBook Pro / OSX Lion Ubuntu 12.04 ...
1
vote
1answer
335 views

NFS server setup: 192.168.1.0/24 vs 192.168.1.*

I have my nfs server running on 192.168.1.99 box, and I have my /etc/exports configured using /myshare 192.168.1.*(rw,sync,no_subtree_check) I was able to mount nfs from 192.168.1.50 client box. ...
1
vote
1answer
561 views

CentOS : How to improve NFS listing performance

NFS had been working great for me for the last years, but I'm now confronted to a performance issue to which I can't actually find a solution. My problem is that, on the NFS server I have around 5Gb ...
3
votes
1answer
1k views

Delaying NIS & NFS startup till after network interface is fully ready on Fedora 17

I've recently set up a fedora 17 server for our network, and I've been having trouble getting the NIS service to work on startup. Here's some logs from the system: Aug 21 12:57:12 cairnwell ...
1
vote
1answer
108 views

Track source of heavy NFS usage?

The NFS my group uses has been getting extremely sluggish recently. Is it possible to track the processes, across a network of multiple machines of course, that are causing this heavy usage? ...
0
votes
2answers
2k views

Debian Squeeze stable: ifstate file does not contain the network interface (related to failing NFS mount at boot)

The automatic NFS mount at boot doesn't work. This is my fstab row: nas:/backups /mnt/nas_backups nfs rw,_netdev,auto 0 0 Using mount -a it works, but at boot it doesn't work. ...
6
votes
1answer
773 views

NFS performance woes on Debian

I am having very inconsistent performance with NFS between two wheezy machines, and I can't seem to nail it down. Setup: Machine 1 'video1': Dual 5506 w/12GB ram, XFS on 8x3TB RAID6 exported as ...
0
votes
1answer
66 views

What are the pre-requisites to NFS Mount in between two servers?

I understand port 111 and port 2049 needs to be accessible; but what are the other pre-requisite that's needed to be present before being able to NFS Mount? We have tried NFS Mount using "mount -v -t ...
2
votes
1answer
518 views

NFS mount mounted inside another NFS mount disappears randomly

I have quite an odd issue where my nested NFS mounts just disappear randomly from time to time. The fstab entries look somewhat like this: nfs:/home /home nfs ...
-3
votes
1answer
571 views

Is it possible to limit Samba (or entire LAN) speed?

I've a problem with a mini server (Via epia c3 1ghz): when there is too much LAN traffic (in particular Samba or NFS files moves) the server reboots and continue to reboot until I unplug the LAN cable ...
0
votes
1answer
189 views

NFS Connection Configuration Between Multiple Clients/Servers

I have several client computers (PCs) that need to connect to DRBD-replicated NFS servers. With NFS, I know you need to have the connection configured on both machines (e.g. client -> server and ...
2
votes
1answer
215 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 performance troubleshooting

I am troubleshooting NFS performance issues on Linux, and I'm looking at the following nfsiostat output: host:/path mounted on /path: op/s rpc bklog 96.75 0.01 read: ops/s ...
-1
votes
1answer
1k views

what is the latency for an 8K transfer of Fibre Channel? (NFS vs FC) [closed]

I've heard it said that a 512byte data transfer over fibre channel is 10us so would an 8k (16x the data) take 160us? or is much of that 10us one time transmit overhead? I'm interested in comparing ...
0
votes
1answer
762 views

how to check if NFS is installed or working RHEL

I have put the following line on /etc/exports /media/drive/fedora *(ro , sync) then i did exportfs -a now my hostname is localhost.fedora i want to install the linux from NFS but when i ...
0
votes
2answers
68 views

Making an outside machine visible to private network

I'm trying to make a server visible to a every computer on a separate network without doing anything to the server but I'm not sure what would be the best way to do this. I really just need to access ...
0
votes
4answers
456 views

NFS to NFS mount

I have a machine that I need to bridge NFS files to. Can I mount an NFS directory on machine2 from machine1 and then mount the mounted NFS directory on machine2 on machine3 via NFS? Do you see any ...
0
votes
1answer
2k views

Setting NFS mount point directory permissions and owner

I currently have an NFS mounted website.com:/var/sites/backups0 /mnt/backup nfs rsize=8192,wsize=8192,timeo=14,intr The problem is, this mounts 777 permissions and I want it to be 700, the ...
4
votes
1answer
395 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 ...
7
votes
4answers
3k views

Good NFS configuration for Small Network (NFS Performance Issues)

I have a small LAN that has a couple of Linux boxes (Ubuntu 9.10) with NFS shares on them. The boxes are networked with a consumer grade Netgear router (model WGR614V9) and using wired connections. ...
3
votes
1answer
185 views

Tracing NFS activity

I've got a system of 55 workstations that share two NFS mount points on a central server. Recently over the past few days, I've noticed an increasing number of "GETATTR" requests filtering in from ...
7
votes
5answers
9k views

Tuning NFS for minimum latency

How can I achieve low latency for NFS exports in order to e.g. have developers work nicely in Eclipse/Visual Studio with their workspaces mounted over NFS?