The Benefits of Hierarchical Storage Management

What is Hierarchical Storage Management (HSM) and what are the advantages? HSM, is a data storage system that instantly moves information in between different tiered storage.

HSM is a subset of the Details Lifecycle Management (ILM) set of storage methods. Files are handled and moved to various logical and physical places based upon business policies and performance demands.

Did you understand that:

  • Less than 20 % of all IT files are accessed again within 1 Month after production?
  • 60 % of files are accessed longer than 90 days ago?
  • A big quantity of replicate files exist in every environment?
  • Several terabytes of archived files exist in most environments?
  • Requests for added storage occur frequently?


Why does HSM exist?

  • HSM systems exist since high-speed storage devices, such as hard disk drives, are more expensive (per byte kept) than slower gadgets, such as SATA (Serial Advanced Technology Attachment) drives and magnetic tape drives.
  • HSM systems keep the bulk of the business’s information on slower gadgets, then copy information to much faster hard disk when needed. In effect, HSM turns the quick disk drives into caches for the slower mass storage devices.
  • HSM systems monitor the means information is used and makes best guesses as to which information can be safely moved to slower gadgets and which information stays on the hard disks.


Advantages of HSM

The advantages of HSM are that it improves performance and resource application, discovers means to do more with what organizations already have, and provides enhanced access to resources by:.

  • Streamlining resource sharing.
  • Minimizing management work.
  • Consolidating helps in the support of business development and modification.


Hierarchical Storage Management Solves Troubles

Often there are a number of copies of the exact same file in a number of places. Recognizing what files need to be preserved and what files need to be erased can be a complicated task, and has to be a task that includes the participation of business team.

To complete a storage strategy, the following have to be completed:

  • Discovery audit of the environment (file systems, SAN storage, SAN material, library (archiving), metadata, data sources, applications).
  • Evaluate projects for power, cooling, and storage requirements.
  • Figure out the scalability of the environment as the quantity of work grows.

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