Tiered or hierarchical storage management system in Kaspersky Anti-Virus 8.0 for Windows Servers Enterprise Edition

 

Kaspersky Anti-Virus 8.0 for Windows Servers Enterprise Edition

 
 
 

Tiered or hierarchical storage management system in Kaspersky Anti-Virus 8.0 for Windows Servers Enterprise Edition

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2012 Jan 23 ID: 4675
 
 
 
 

Kaspersky Anti-Virus 8.0 for Windows Servers Enterprise Edition allows scanning files stored in tiered storages and backup systems.

Tiered (or hierarchical) Storage Management system (hereinafter HSM system) allows relocating data between fast local drives and slow long-time storage devices. Although fast data storage devices have a lot of advantages, they are too expensive for the majority of organizations.

HSM systems allow relocating currently unused data to cheap storage device, decreasing corporate expenses.

HSM systems save part of information on remote storages and recover it as necessary. HSM systems keep monitoring the usage of files defining which data can be relocated to a remote storage, and which should be kept on local storage devices. Files get relocated to a remote storage when they are not accessed for a long period of time. When a file stored in a remote storage gets accessed by a user, it is recovered back to the local drive. This principle allows users a quicker access to large volumes of data, significantly larger than available local disk space.

When moving a file from local drives to a remote storage, HSM system saves a link to its actual physical location. When a file containing a link gets accessed, the system defines data location in the remote storage. Replacing files with links to their location allows having a virtually unlimited storage space.

Some HSM systems allow saving parts of files in local storages. In this case, a larger portion of a file is relocated to a remote storage, and a smaller one remains on local storage media.

HSM systems can use two methods of accessing the data stored in a tiered storage:

  • reparse points
  • extended file attributes.

 
 
 
 
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