HP XP Replication Manager SW for XP24000/XP20000 1TB 64-127TB LTU T5284BF プリント

 
 

 
 

 

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Executive Summary 

HP’s November 2007 announcement of enhancements to its HP XP24000 and XP20000 
continues the consistent progression of the product line. While this announcement 

represents a seemingly small step in the realization of HP’s vision, it has big 

implications. Specifically, instead of just making new storage better, HP continues to 

deliver on its promise of improving the efficiency of already installed storage assets. 

To accomplish this, HP has built upon its May 2007 announcement of thin provisioning 

and extended this capability for externally attached storage. In other words, HP can 

provide virtualization, thin provisioning and storage management services not just for its 

own new storage, but for installed storage as well, all in one system. The key questions 
for storage executives are “does it work” and if so what is the business case of adopting 

this approach? This white paper focuses on these two questions. 

The answer to these two questions was best summed up by a quote from a storage 

manager who installed virtualization and thin provisioning; “It saved me an array…I got 
30 terabytes for free.” ITCentrix has confirmed that other installations have similar 

positive stories. While there are some applications unsuitable for thin provisioning, and 

care needs to be taken on others, the software world and customer base is beginning to 

see that block-based virtualization, thin provisioning and storage services are trends 

they must embrace.  

The business case for these enhancements is illustrated in the case study within this 

report. A financial company was expecting to buy two arrays over the next twelve 

months. The choices were: 

•  Add an additional array to the three installed already, and an additional array in 

six months time; or 

•  Add an XP24000 with external virtualization capabilities and evolve it to provide 

thin provisioning to the installed arrays over time. 

The financial case was simple. The XP24000 adds 5% more usable capacity than the 

alternative over the next 12 months at one half the costs, saving more than $800K 
(even after accounting for migration expenses). It saves an array and is expected to