Virtualization

virtualizationSome good links about virtualization from –
TechRepublic.

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Storage Virtualization solves problems

virtualizationAccording to a 2005 article by Informationweek, EMC Kicks Off Storage-Virtualization System; Invista uses out-of-band communications and SAN switches to map logical addresses to physical addresses and improve the utilization of storage resources, virtualization enables the reconfiguring of storage without disabling applications as well as better storage utilization. Virtualization can simplify storage administration. Vendors such as EMC use out of band virtualization from the SAN switches, where IBM, with its SAN Volume Controller product use in-band in which virtualization mapping “takes place at devices residing in the data path… [and] “Virtualization allows the management of the IT infrastructure to be independent of the management of applications”” (Informationweek, 2005). Virtualization is the “ability to take storage and present it to any host, of any size, from any storage vendor” (Anthes, 2008). It also provides more efficient use of disk space and can streamline “operations by simplifying migration, replication, and backup” (Informationweek, 2009).

References:
EMC Kicks Off Storage-Virtualization System; Invista uses out-of-band communications and SAN switches to map logical addresses to physical addresses and improve the utilization of storage resources. May 16, 2005 pNA InformationWeek, p.NA. Retrieved June 11, 2009

Anthes, G. (Oct 6, 2008). Virtual headaches: storage virtualization is hot and for good reason. But its benefits bring layers of complexity.(SPECIAL REPORT). Computerworld, 42, 41. p.24(4). Retrieved June 12, 2009, from Academic OneFile via Gale

HP Launches Virtualized Storage Hardware, Software; The StorageWorks offerings can reallocate and manage resources across virtual and physical environments, reducing costs by avoiding excess storage capacity.(Brief article). March 10, 2009 pNAInformationWeek, p.NA. Retrieved June 12, 2009, from Academic OneFile via Gale