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This article is part of the Vol. 11 Num. 3 May 2012 issue of Storage magazine
Direct-attached storage may seem passé, but it’s making a comeback and gaining widespread interest. Direct-attached storage (DAS) is storage installed in a server or external cabinet that’s still connected directly to the server. DAS is storage that’s essentially captive to a particular server, so the server doesn’t need to traverse a network to read and write data. DAS has been criticized as an inefficient way to connect storage to a server and as an obstacle to the data protection process. Storage that’s locally attached can’t be shared, which can lead to a situation where one server can be running out of disk capacity while others have plenty to spare. Without shared storage, there’s no way to balance capacity demands. DAS could complicate the data protection process because each server would have to be backed up individually and the data copied across the network. Alternatively, each server would have its own locally attached tape device and backup application that would add even more complexity to the backup process. Shared...
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Features in this issue
Cloud archiving services can offer accessibility and data preservation at a fraction of the cost of building an on-site archive infrastructure.
Direct-attached storage may seem passé, but it’s making a comeback and gaining widespread interest.
Storage budgets have been recovering, but progress might be slowing. Storage managers are looking for tools to get more out of the gear they have or plan to buy.
Find out what readers had to say about hard disk drive price increases and shortages. What types of compromises did they have to make when placing orders?
Columns in this issue
Lower prices, no vendor lock-in, endless storage capacity -- cloud storage is getting downright friendly these days.
Give or take a few million years, the Mayans say we’re doomed; but our data storage systems may be living on borrowed time right now.
Whether it’s defining “big data,” understanding Hadoop or assessing the impact of large data stores, storage pros need a clear understanding of the big data trend.
Flash technology can be attractive for cloud service providers -- and enterprises -- looking for a highly available, scalable and efficient data storage solution.