Creating a Volume Using the MapR Control System

Complete the following steps to create a volume from the MapR Control System:
  1. In the Navigation pane, expand the MapR-FS group and click the Volumes view.
  2. Click the New Volume button to display the New Volume dialog.
  3. Type a name for the volume or source volume in the Volume Name field.
  4. You can set a mount path for the volume by typing a path in the Mount Path field.
  5. You can specify whether the volume is read only in MaprR-FS. Note that this setting can be changed after the volume is created.
  6. Specify the user or group accountable for the volume usage in the Accountable Entity field by selecting User or Group from the dropdown menu and type the user or group name in the text field.
  7. You can set permissions using the fields in the Permissions section:
    1. To set the root directory permissions, specify the unix octal permissions.
    2. To set the volume permissions per user, specify the permission for the root user, by selecting the permissions in the right field.
    3. To add additional permissions per user, click [ + Add Permission ] to display fields for a new permission.
      In the left field, type either u: and a user name, or g: and a group name.
      In the right field, select permissions to grant to the user or group.
  8. You can associate a standard volume with an accountable entity and set quotas in the Usage Tracking section:
    1. To set an advisory quota, select the checkbox beside Volume Advisory Quota and type a quota (in megabytes) in the text field.
    2. To set a hard quota, select the checkbox beside Volume Hard Quota and type a quota (in megabytes) in the text field.
  9. You can set replication factors and replication optimization in the Replication section:
    1. Specify the desired replication factors in the Replication and Min Replication fields.
    2. Specify the desired name space container replication factors in the NS Replication and NS Min Replication fields.
    3. Specify how you want to optimize your replication in the Optimize Replication For field. Options are for either high throughput or low latency.
  10. You can enable auditing and set coalescence in the Auditing section. Auditing is enabled or disabled for all actions on the volume. The Coalescence interval is specified in minutes (default: 60 minutes).
  11. Click OK to create the volume.