Direct Attached Storage (DAS) is a storage unit directly attached to your workstation or server. It is not always doable in company computing, and there are techniques to construct redundant storage arrays, but most customers reading this post are not going to be running RAID 50, 60 or other more fancy configurations. Important distinction among DAS and NAS is that unlike NAS, a DAS device is directly connected to the server without the want of any network connection. The array of disks in every of the DAS, NAS, and SAN function the very same on ALL of the enclosures.
Recall, the significant distinction involving a NAS and DAS is that a single is a computer system (NAS) and a single wants to connect to a computer system (DAS). For substantial organizations with many servers, SAN provides improved functionality and flexibility than DAS, along with possible price savings, though SAN hardware can be costly. Your processor (and potentially RAID card) are going to be accountable for managing the straight attached storage unit. Keeping DAS is also very straightforward by contrast, SAN and NAS options commonly need management application and may possibly need monitoring application as properly. Even though SATA drives never however have the functionality of SCSI, they make it affordable to load a server with RAID 5 arrays, supplying double-digit terabyte storage. The DAS space will be intriguing to watch as application vendors continue to make more logic into applications and as conventional array vendors fight for share.
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