Accessing data from the spectrometers and server on Windows, Mac, and Linux computers

1. Each NMR spectrometers run the network service "samba"  (SMB) to export network shared drives in a Windows and Mac-compatible format.  All of those shares are named nmrdata. Additionally, the NMR server ( has two SMB shares on it containing archived data.  One is called data and it contains a nightly update of all the data taken on the Dell Linux host computers.  The second is called sun_data and it contains the data we can recover from the older Sun workstations, plus the data taken on the Linux hosts up through mid-November 2008.

To access these shared folders as network drives under Windows, go to My Computer -> Tools (or My Network Places -> Tools in Windows 2000) and choose Map Network Drive.  Choose an unused drive letter.  In the Folder box, put the name of the spectrometer you wish to connect with:


or for the archives on the server:


and then click Connect using a different user name.  Enter the user name nobody and the password (ask the NMR lab staff if you do not know) and click OK.  Click Finish in the Map Network Drive box; in a few seconds, you should get a new directory view window of the user directory tree. (If you check the box to save your login information, then you can skip these steps in the future.)  Go down the tree home -> your username -> vnmrsys -> data to get to the data folders. 

   To do the same operation on a Mac, choose Go -> Connect to server.  In the box that appears, type smb:// (or other machine name as shown above).  Note the forward slashes here, unlike the back slashes for Windows.  At the next step, you will be prompted for the name and password (same as above).

On a Linux computer, open a shell and type
nautilus network:
This ought to browse for available network drives.  Look for icons with the spectrometer names, FID, HG3, etc.  Open these and there should be a SMB icon inside that.  Open the SMB icon to get to the /home directory.
    Everyone has read permission to the data in all the trees.  Read permission also gives you permission to copy to anyplace you have write permission (such as the desktop of your own computer or local drives you may have).  The nobody account does not have any write access. (Write access in Linux also grants permission to delete files.) 

2.  The Linux desktop will automount many types of USB devices if you just plug them in to a free USB port.  A directory view should automatically appear and you can drag and drop files into it.  When you are done,  close that window, right click on the USB drive icon, and unmount it before removing the USB drive.
   From off campus, you can also access the network drives if you can make a VPN connection to the Caltech network.

3.  I have set up some NFS (network file system) exports primarily for our own Linux workstations in the computer room, but these may be useful if you have a Linux system.  All the spectrometers export their data directories, and the mangia server exports /data and /sun_data.  All of these are read only exports and are currently limited to the Crellin network subdomain.  These drives are mounted at bootup on the spello, urbino, and erice workstations in room 050c Crellin.

Dave 1/6/15