• Unix,  Xsan

    Xsan: Setting up StorNext Clients on Red Hat Enterprise

    Xsan and the acfs (Apple Clustered File System) volumes that Xsan controls can be utilized by Windows and Linux clients.  The Windows setup is fairly straight forward, so here we’re going to cover setting up a Linux client to mount an Xsan volume using StorNext.  First, buy StorNext.  Second, register StorNext.   Then, go to your Metadata Controller and Backup Metadata Controller and use the cvfsid command.  Copy the contents and go to this site, completing the form using the output from cvfsid: http://Prodreg.quantum.treehousei.com/login.aspx  Now put the information that Quantum sends you into the /Library/FileSystems/Xsan/config/license.dat file on your Metadata Controllers and reboot them.  Now you’re ready to setup your clients.…

  • Xsan

    Xsan: umask and Default Permissions

    I originally posted this at http://www.318.com/TechJournal By default the global permissions for new files written into an Xsan volume are 644 (rw-r–r–). This can result in a permissions problem where one user can read another user’s posted items, but not make changes to it.  This can be resolved by changing the default umask value for groups. It’s a simple command line: sudo defaults write -g NSUmask 23 In this case, the 23 is a decimal equivalent of “rw-”. So the result of running this command line is that files posted to the shared volume will have 664 permissions (rw-rw-r–), allowing other users in the group to modify the files. Note…