Direct-Attached Storage (DAS) hard drive enclosures add capacity directly to an existing server or cluster of servers without the need for a network interface. This is usually the simplest and most cost-effective way to increase storage space. Dell’s PowerVault storage arrays have evolved over the years from the older PowerVault 220S SCSI enclosure to the roomier PowerVault MD1000 SAS/SATA array which allows for up to 30TB of storage space.
For two-node clusters or direct connection for up to four servers, the PowerVault MD3000 allows pay-as-you-go expansion options to daisy-chain up to two additional PowerVault MD1000s. More recently, Dell’s Powervault MD1200 and PowerVault MD1220 models saw an increase in throughput with 6GB/s hard drives and controllers. The PowerVault MD1220 will accommodate up to twenty-four (24) 2.5" hard drives for a maximum capacity of 28.8 TB. The PowerVault MD3200 allows even more expansion and connects to additional MD1200s or MD1220s.
While both Storage Area Networks (SANs) and Network Attached Storage (NAS) provide networked storage solutions, a NAS is a single storage device that operate on data files, whereas a SAN is a local network of multiple devices that operate on disk blocks.
A NAS typically makes use of Ethernet and TCP/IP connections.
Dell's network attached storage solutions offer the advantage of commonality with Dell PowerEdge servers while maintaining the ease of use you’ve come to expect from a traditional storage appliance. They enable IT environments of any size to quickly deploy file sharing and other essential services.
Dell PowerVault NX network-attached storage devices are affordable NAS appliances designed to harness the innovations of Windows Storage Server 2012 R2.
The Dell PowerVault MD3000i networked storage array leverages the modularity and availability of the PowerVault series to deliver an IP network storage solution that can consolidate up to 16
hosts. It also enables high performance and capacity-efficient consolidation without requiring an expensive and complicated Fibre Channel storage network.
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Dell PowerVault Disk Storage Enclosures
All prices are in USD.