由於使用者個人的數位資料日漸快速增加，對於儲存設備的需求也相對地提升；除此之外，如何能夠有效地保存使用者的重要資料也是非常重要的。為了擴充使用者的個人電腦或者筆記型電腦的可用儲存空間，新增磁碟機或掛載NFS或者Samba等網路磁碟機都是可行的方法。然而這樣會增加使用者對於系統管理、資料管理及存取的負擔。階層式儲存設備管理(HSM. Hierarchical Storage Management)以及資訊生命週期管理(ILM, Information Life-cycle Management)是非常有效的資料儲存管理技術，目前在一般大型企業中被廣泛地應用於不可被更動之重要資料的保存與管理。Iceberg採用HSM及ILM的概念並提供一般使用者一個可以負擔的資料儲存與管理的解決方案。更重要的是，使用者在採用Iceberg系統之後，能夠非常輕易且以傳統的檔案系統操作方式來存取及管理其個人的數位資料。

The storage demand of each user is rapidly increasing due to the exponential growth of users digital data. It is critical for the users to have a good method to preserve their valuable data. Users can extend the total storage capacity of their own personal computers or notebooks by installing additional hard disk drives or mounting networked storage space exported by NFS or Samba server. However, this brings the drawbacks of overhead on system management, data management and data access to users. Hierarchical storage management (HSM) and information life cycle management (ILM) are widely used for large organizations to preserve and manage the valuable and immutable data. Iceberg adopts the concepts of HSM and ILM and provides an affordable data management solution for common users. In addition, users can manipulate their files transparently with less overhead by employing Iceberg.

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