Any views expressed within media held on this service are those of the contributors, should not be taken as approved or endorsed by the University, and do not necessarily reflect the views of the University in respect of any particular issue.

Magnus Hagdorn

Magnus Hagdorn

Research Software Engineer

Remote Filesystem Experiemnts

Now that our CephFS file store is in production and LCFG managed Ubuntu is available I began to experiment with running Samba on Ubuntu. The good news is that the LCFG samba component pretty much worked out of the box. The minor tweak that was required is going through the Informatics release process. Our test Samba server works just as well on Ubuntu as on SL7. The big improvement is that we will get a more modern ceph kernel client.

I did look into using the Samba cephfs snapshot VFS module to expose snapshots to Windows users. However, this will not work since it would require us to use also the ceph VFS module to access the cephfs directly. We would like to keep symbolic links working on both Linux and Windows systems. This works by using the same automounter maps on the samba server as on the Linux clients. Therefore, we cannot use the ceph VFS module since our filesystem layout in cephfs does not reflect the layout on the Linux clients. Users will need to find the snapshots on our Linux systems or ask the sysadmins for file recovery.

The other failed experiment was attempting to use the Unix extensions on Samba to replace our ganesha NFS servers. It looks like the unix extensions are not supported with newer versions of the SMB protocol. It is work in progress though. It does look like we are stuck with the ganesha NFS server for the foreseeable future.

Leave a reply

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

This site uses Akismet to reduce spam. Learn how your comment data is processed.

css.php

Report this page

To report inappropriate content on this page, please use the form below. Upon receiving your report, we will be in touch as per the Take Down Policy of the service.

Please note that personal data collected through this form is used and stored for the purposes of processing this report and communication with you.

If you are unable to report a concern about content via this form please contact the Service Owner.

Please enter an email address you wish to be contacted on. Please describe the unacceptable content in sufficient detail to allow us to locate it, and why you consider it to be unacceptable.
By submitting this report, you accept that it is accurate and that fraudulent or nuisance complaints may result in action by the University.

  Cancel