HOW EV Collections affects EVComplete Migrations

Overview

When EV Collections have been enabled on the partitions, archived data is collected into CAB files after a period defined by the administrator. Once this data is collected, subsequent requests to retrieve or restore results in this data being extracted from its corresponding CAB file to the partition. This data is restored in the form of temporary files with the extensions .archdvs, .archdvssp and .archdvscc.

These temporary files should then be deleted from the partition by Enterprise Vault the next time the Collection process runs if these files have not been accessed in the last 24 hours. The collection process schedule is defined on the Collections tab in the properties of each partition.

When performing a migration with EVComplete, it will retrieve the items inside the CAB files, often times at a rapid rate utilizing diskspace that may cause the storage service to shutdown before the scheduled collections cleanup.  Below are a few options to help alleviate any disk issues during migrations.  

Solution

1. Verify that the Vault Store Database that hosts these partitions are not in Backup Mode:

• On the Enterprise Vault console, click the Vault Store Group that contains the Vault Store.
• Check the Backup Mode column in the right-hand pane of the Vault Administration Console.
• If Backup Mode is set for the Vault Store containing the affected partition and there is no backup currently in progress, clear the Backup Mode by right-clicking on the Vault Store and selecting Clear Backup Mode

2. Once Backup Mode is not set, manually run Collections:

• Open the properties of the affected partition and select the Collections tab.
• Verify that the daily file collection schedule is set correctly and then click the Run Now button. An event should then be logged in the Enterprise Vault event log indicating that a Collection run has started. When this run completes an event will also be logged confirming that the Collection run has completed.

Please review also Veritas KB article ‘Free disk space reduces unexpectedly on closed NTFS partitions.‘

The options below can also be used as an immediate remediation to clear up diskspace when needed.  

1. Via CMD line, run the following against the partition folder(s)

          del *.archdvs* /s

2. PowerShell - change path as need

         Remove-Item -path D:\Folder1\Folder2\*.archdvs*

3. Cloudficient has a tool that can run in the background to delete these temp files adhoc to keep diskspace in order. This is the preferred method.   Your Cloudficient Consultant can discuss this with you.