The Access tab of the Settings window specifies the network and disk locations of the target journal files, and also defines how data is accessed.

Access settings

Default Instrument (1)

A specific instrument whose journal files should be loaded immediately on startup (or LOCAL for the local user data, or to use the first instrument in the list).

ISIS Journal Source (2)

The location from which to acquire journal data for all instruments. Local Disk Only means only previously-saved local journals will be available, while Network Only reloads journal files from the Network Source every time. Local Disk, Updated from Net will check for local copies of journals first, reloading out-of-date journals from the network, and storing updated journals on disk as it proceeds.

The Local Directory should be set to a location on the user's hard disk, and will be used to store updated journals retrieved from the network.

The Network Source should be set to the location of the journal xml files accessible by HTTP (currently http://data.isis.rl.ac.uk/journals/).

Automatic reloading of the currently-displayed journal file can be enabled with the Auto Reload feature, with a corresponding poll interval time (in minutes).

If Force ISO Encoding is ticked, then the encoding of the journal xml files (usually UTF-8) is ignored, and ISO-8859-1 is assumed instead. This can be enabled if problems with special characters (i.e. accents on user names) present in the journal prevent the data from being loaded correctly.

Data Source (3)

The two locations here represent the areas to search when attempting to load .log or .nxs files (when plotting data etc.). The Data Directory should point to the network share location that holds all instrument run data. Note that this setting is heavily operating system-dependent.

For Windows machines on the STFC network it should be sufficient to use \\isis\inst$ as the Data Directory, provided the current user is authenticated with a suitable federal ID. For OSX machines it is necessary to first mount the correct Windows share:

  1. From the Finder tool select Go→Connect to Server
  2. Enter smb://isis/inst$ as the Location
  3. Click Connect and you will be prompted for your federal ID and password
  4. Once successfully authorised the data should be accessible through \\Volumes\\isis$
  5. In JournalViewer's settings, enter \\Volumes\\isis$ as the Data Directory

For Linux systems the process is similar, but the variety present within the available distributions makes a comprehensive guide impossible. From the command line the procedure is as follows on an OpenSuSE 13.1 system:

  1. As root, create a directory mount point for the Windows share, e.g. /isisdata
  2. As root, mount the Windows share with the following command, replacing abc12345 with your federal ID:
bob@pc:~> mount -t cifs //isisdata/inst$ -o "user=abc12345,sec=ntlm" /isisdata
  1. Enter the password associated to your federal ID
  2. In JournalViewer's settings, enter /isisdata as the Data Directory

The User Data Directory may point to a disk-based location where raw, log, and nxs files exist, and which JournalViewer treats as data for the LOCAL instrument. See viewing user data for more information.

Block Data Source (4)

When reading block (sample environment) data for a given run there are two possible sources of data: the log file, or the nxs file. These options allow control of which source(s) to use when loading data for plotting (by double-clicking on the main table or using the F1 shortcut).