NFS looks ok, but A3 services do not start


Problem: You have mounted your Alike Data Store (ADS) using NFS. It mounts without error. However, when you try to start the A3 services, they fail with an error "Error: quadric.blockvaulter.CloudException: Datastore not properly mounted--file /mnt/ads/journals does not exist!" or similar

Solution: It's likely that the NFS mount did not establish appropriate permissions. Fixing these permissions will resolve the issue.


NFS permissions can be tricky, and it's possible that you can mount an NFS share but not be able to do much with it. A valid NFS share on your A3 should support file creation, modification, and deletion by the "alike" user. You can verify this by taking the following steps:

  1. Dropping to the shell (option 4)
  2. ​cd /mnt/ads
  3. ls -la
  4. touch test.file
  5. vi test.file (then use "i" to insert some test chars, and escape + ":wq" to write and exit.)
  6. rm test.file

In rare cases, it's possible that the problem only impacts sub-directories. You can check for this as follows:

  1. Dropping to the shell (option 4)
  2. ​cd /mnt/ads/journals
  3. ls -la
  4. touch test.file
  5. vi test.file (then use "i" to insert some test chars, and escape + ":wq" to write and exit.)
  6. rm test.file


If either of these tests fail, log into your NFS host server and change permissions as needed, then reboot the A3 and retest the above.