Volume Groups

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Volume Groups or consistency groups are groups of volumes that you associate with each other to form the basis of a backup or restore job.  For example, you could combine all of your Exchange volumes into a single volume group in a scenario where you would like to take a backup of or restore the entire Exchange application and not just its individual volumes.  A left click on the volume group node, will enumerate all the existing volume groups in the result pane and details of each, including the number of assigned applications and number of volumes per volume group as shown below.




The Action Pane will display the option to create a new Volume Group.


This page disccuses the following tasks associated with Volume Groups:

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Create Volume Group

You can create a new volume group by clicking on 'Create Volume Group' in the action pane or you can also display this option by right clicking on the Volume Groups node.




A Volume Group pop-up window is displayed with:


  • Name – you will need to assign a unique name to the new Volume Group
  • Applications – lists all the supported VSS writers currently installed and running on the host. Currently, StorSimple Data Protection MMC Snap-in supports the SQL Server and Microsoft Exchange VSS writers.  Choose the writer associated with the application that is using the volumes you are intending to select



A specific writer will be enabled if and only if all the volumes that the writer is aware of are StorSimple appliance volumes. If you select this writer all volumes associated with it will automatically be selected. The opposite holds true as well; that is, when you select volumes associated with a specific writer, the writer is auto selected in the applications column.


  • Volumes - You can choose any of the StorSimple Volumes to be part of a volume group


At this point you can click on the Accept button to save the newly created volume group or choose to Cancel the operation.  Once saved, the Volume Group will be displayed in the list of existing Volume Groups.




A right click on any Volume Group enlisted in the Result Pane will display a context menu with the following actions:



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Create Policy

Selecting the ‘Create Policy’ action allows you to create a scheduled backup policy using snapshots, Cloud Snaps, or Cloud Clones. 




To create a policy, specify the following on the ‘General’ tab:


  • Name – a unique name for this policy
  • Volume Group – the volume group you wish to create a backup policy for
  • Operation – specify the type of backup you would like to have performed as part of this schedule, including snapshot, Cloud Snap, or Cloud Clone
  • Retention – the number of backup copies to retain as part of this schedule.  Checking the ‘all’ box will retain all backup copies until the maximum number of backup copies per volume is reached, at which point the schedule will stop operation.  Alternatively, specify a number of backups to retain (between 1 and 64)


The ‘Schedule’ tab allows you to define the schedule for the policy. 




On the schedule tab, specify:


  • Settings – including the frequency that the policy should execute, and its start time
  • One Time – the schedule will execute once only
  • Daily – the schedule will execute every day
  • Weekly – the schedule will execute every week
  • Advanced Settings – including repetition, expiration, and whether or not the schedule is enabled
  • Repetition – specify how frequently the schedule should repeat, and how long this repetition should occur
  • Expiration – specify the time and date that the policy should be made inactive
  • Enabled – specify whether or not the schedule is active and enabled, i.e. backup jobs will be executed using this policy


Clicking ‘Accept’ will save the policy, and clicking ‘Cancel’ will discard the policy.  The next scheduled run of a policy will be displayed in Jobs > Scheduled, and completed jobs will appear in Jobs > Completed.

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Take Backup

Selecting this action allows you to start a backup interactively using a snapshot, Cloud Snap, or Cloud Clone.  A popup dialogue will give you an option to choose between starting a Snapshot or Cloud Clone.




Choose the type of backup operation you’d like to perform, and click ‘Accept’ to immediately start the backup operation.  Clicking ‘Cancel’ will ignore the operation.  Backup jobs that are started interactively will appear in Jobs > Running for the duration of the operation.

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Update a Volume Group

In order to update a Volume Group, select the Update option. This action will allow you to make changes to the volume group such as adding or removing volumes, changing the volume group name, and changing the associated application writer.  Once updated the Volume Group will exhibit the changes made.

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Delete a Volume Group

You can delete a volume group that does not have a policy assigned to it by selecting 'Delete’ from the context menu or the action pane.



Right clicking a Volume Group that has a Data Protection Policy assigned to it will present a context menu with the 'Delete' option missing.  In order to see the option to delete this Volume Group, you will need to first delete the policy assigned to it and then right click on the Volume Group to see the Delete action in the context menu.


On selecting the delete action you will be will be presented with the following confirmation dialogue box:





Deleting a Volume Group will result in all the Snapshots and Cloud Clones associated with it.  A Volume Group will NOT be deleted if it has any of its associated snapshots, Cloud Snaps, or Cloud Clones mounted. You will first need to unmount the mounted snapshots, Cloud Snaps, and Cloud Clones, and then retry the delete operation.


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