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Vol. 2 No. 8 October 2003

Spend less on storage

The advancements in disk drive technology have been as influential to the progress of business computing as microprocessors. Without the capacity and performance advances we've come to take for granted, it would be impossible to run the majority of today's applications and operating systems. Enter SAS There's another new serial disk drive interface being developed called serial-attached SCSI (SAS). The original idea behind SAS was to create another small I/O network that supported SCSI commands, as opposed to ATA. The initial problem with SAS was that Fibre Channel already provided SCSI compatibility for both external and internal interfaces and there was really no need for another disk drive interface. However, the SAS backers saw the advantages of piggybacking on the work already done on serial ATA (SATA) and worked with the SATA organization to create a specification that incorporates SATA connectivity to SAS controllers. The idea is that a single controller could connect to SATA and as SAS disk drives. From my perspective, ...

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