What is DAS?

Direct-attached storage (DAS) refers to a digital storage system directly attached to a server or workstation, without a storage network in between.

A typical DAS system is made of a data storage device (for example enclosures holding a number of hard disk drives) connected directly to a computer through a host bus adapter (HBA). Between those two points there is no network device (like hub, switch, or router), and this is the main characteristic of DAS. The main protocols used for DAS connections are ATA, SATA, SCSI, SAS, and Fibre Channel.

Best-Fit Applications

  • Storage Capacity Extension
  • High Data Bandwidth
  • High Access Rate
  • Data Backup

 
 

What is DVR?

A digital video recorder (DVR) or personal video recorder (PVR) is a device that records video in a digital format to a disk drive or other memory medium within a device.

Digital video recorders configured for physical security applications record video signals from closed circuit television cameras for detection and documentation purposes. Many are designed to record audio as well. DVRs have evolved into devices that are feature rich and provide services that exceed the simple recording of video images that was previously done through VCRs. A DVR CCTV system provides a multitude of advanced functions over VCR technology including video searches by event, time, date and camera.

Achieva supply both DVR systems for Home and Surveillance use.

Best-Fit Applications

  • Surveillance
  • TV Recording at Home
  • Convert DVD/BD to Media File