About placeholder shortcuts

Article:HOWTO57685  |  Created: 2011-08-01  |  Updated: 2013-07-12  |  Article URL http://www.symantec.com/docs/HOWTO57685
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About placeholder shortcuts

When FSA archives a file it can optionally leave a placeholder shortcut. Placeholder shortcuts behave exactly as the original files. A placeholder shortcut has the same file extension as the file to which it is a shortcut. When a user opens a placeholder shortcut, the original file is retrieved automatically.

A placeholder shortcut shows the size of the file that it replaced, although the shortcut itself takes up very little space.

Placeholder shortcuts are supported on NTFS devices, NetApp filers, and EMC Celerra/VNX devices. To use placeholders on a Windows file server the FSA Agent must be installed on the file server.

See About the FSA Agent

For details of the exact requirements for placeholders, see the Enterprise Vault Compatibility Charts.

When you define an FSA policy that specifies leaving placeholder shortcuts, you can choose whether to do the following:

  • Delete placeholders for the items that have been deleted from archives.

  • Delete archived files when placeholders are deleted.

Table: Characteristics of placeholder shortcuts describes the behavior of placeholder shortcuts when you open, copy, move, or delete them.

Table: Characteristics of placeholder shortcuts

Action on placeholder

Effect

Open

The file is recalled from the archive.

Note:

If pass-through recall is in effect, Enterprise Vault recalls the file to disk only if the calling application requires a writeable version.

See About pass-through recall for placeholder shortcuts.

A file that is recalled to the file server replaces the placeholder shortcut.

  • If the recalled file remains unmodified, then Enterprise Vault converts the file back to a placeholder on the next archiving service run. The only exception is if the archiving policy's shortcut creation rules are based on the last access time. In that case, Enterprise Vault reverts the file only when the shortcut creation rules are met.

  • If the recalled file becomes modified, then Enterprise Vault converts the file back to a placeholder according to the archiving policy's shortcut creation rules.

Copy

The source file is restored and then copied. The destination file is a copy of the restored original file.

Note:

The copy operation does not restore the source file to disk if pass-through recall is in effect.

See About pass-through recall for placeholder shortcuts.

Enterprise Vault converts a restored original file back to a placeholder on the next archiving service run. The only exception is if the archiving policy's shortcut creation rules are based on the last access time. In that case, Enterprise Vault reverts the file only when the shortcut creation rules are met.

Move

If the destination is on the same volume, the placeholder is moved.

If the destination is on a different volume, the archived file is restored and then moved to the destination.

Delete

You can configure Enterprise Vault to delete archived files when their placeholders are deleted, if you want. You must configure some settings for the file server, and apply an archiving policy with the appropriate settings.

See About configuring the deletion of archived files on placeholder deletion.

Note the following restrictions and limitations that relate to placeholders:

  • Unwanted placeholder recalls can occur if you use the Windows Explorer preview pane that is provided with Windows Vista, Windows Server 2008, and Windows Server 2008 R2. When you select a placeholder, Windows recalls the file to display the preview. This restriction is due to a limitation with the previewing of offline files.

  • Enterprise Vault cannot create placeholder shortcuts on NTFS file systems for files with extended attributes, such as the following:

    • Files that were migrated from Novell file systems or from HPFS (OS/2) file systems

    • Files that were previously archived with applications such as EMC DiskXtender

    Enterprise Vault archives files that have extented attributes, but the placeholder creation fails. This limitation is due to a Microsoft restriction: placeholders use reparse points, which cannot contain extended attributes.

    EVEARemovalUtility is a command line utility that removes extended attributes from files, so that Enterprise Vault can create placeholders for them successfully. For more information about EVEARemovalUtility, see the Utilities guide.

See About internet shortcuts

See About FSA shortcut files


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