Data Storage: Enterprise Storage Is Finally Evolving: 11 Reasons Why
Prior to network computing, enterprise IT systemswhich consisted of mainframeswere centralized, which required direct-attached storage (DAS). The emergence of network computing in the 1980s drove creation of a new type of storage: storage area networks (SANs) and network-attached storage (NAS). As more applications become virtualized and cloud applications and online storage deployments continue to increase, history seems to be repeating itself, with storage again following the lead of computing. But as a result of the ease of creation of virtual machines (VMs), the feared phenomenon dubbed "VM crawl and stall" has become a stumbling block in numerous systems. "As an increasing number of applications and databases are virtualized or deployed on the cloud, the traditional disk-based approach to storage creates serious performance bottlenecks," said Ed Lee, lead architect at virtual-machine storage software maker Tintri and a member of the original RAID team at the University of California at Berkeley. "There is a demand for a new way to structure and address storage needs that specifically relates to these technologies on a VM-aware level." Virtualization and flash technologies provide a major catalyst for a new era in storage. With help from Lee, eWEEK looks at what is happening within the storage market today and why.