PT-NSH820D24 Hybrid SAN

The PT-NSH820D24 is a dual controller-structure Hybrid SAN (Storage Area Network).



The PT-NSH820D24 is a dual controller-structure Hybrid SAN (Storage Area Network). Prama Hybrid SAN product creates a network with access to data storage servers, and it integrates Prama’s unique video direct streaming technology as well as supports IPSAN/FCSAN.

This flexible, cost-effective solution features support to third-party cameras (via ONVIF), support for RTSP, and SIP protocols, and extended data retention. With no recording server needed, Prama’s Hybrid SAN systems truly make applications simple, flexible, and budget-friendly.

Key features

Reliable System

  • Modular and no-cable design
  • Dual controller in redundant mode
  • Real-time cache
  • Optional BBU (Backup Battery Unit)

High-Performance and Extendable Hardware Platform

  • 64-bit multi-core Intel processor
  • PCI-E 0 bus
  • Four 1000M Ethernet interfaces per controller
  • SAS interface for storage enclosure
  • High-density chassis. 4U chassis: 24 HDDs

HDD Detection and Repair/RAID Optimization

  • Detection before operation
  • Detection in operation
  • Fault repair
  • RAID 0, 1, 3, 5, 6, 10, 50
  • Global and local hot spare
  • Quick RAID building
  • Capability of cascading up to two storage enclosures behind a single SAS port
  • Virtual Drives up to 256

Advanced Data Protection

  • Synchronous backup of key information in system disk and HDD
  • RAID-based tamper-proof data technology
  • Auto data synchronization between devices

Energy Efficient

  • CPU load balance
  • Dual fan in redundant mode

User-Friendly UI

  • Quick configuration
  • Various alarm management
  • SADP protocol supported
  • SNMP supported

Surveillance-Specialized Stream Media Direct Storage (Direct Streaming Mode)

  • Space pre-allocation
  • Direct storage for video stream and picture
  • Supports direct IP camera/DVR/NVR streaming and
  • Supports camera access through RTSP and PSIA
  • Supports alarm/scheduled/manual
  • N+1 Technology
  • Automatic network replenishment (ANR), timely uploading, and video loss
  • Lock key
  • Supports both Direct Streaming Mode and IPSAN
  • Search, play, and download videos by video type or video time.



Direct Streaming mode: video (2 Mbps)

+ picture


448-ch (recording + playback)

IPSAN  256-ch (recording + playback)


Controller  Dual controller
Processor  64-bit multi-core processor
Cache per controller  8 GB (extendable to 32 GB)/controller


HDD slot  24
Interface/capacity  SSD (optional), SAS/1TB, 2TB,   3TB, 4TB, 6TB,8TB,10TB,12TB   with 7200 RPM
Hot-swapping  Supported
HDD support  Single, RAID(Enterprise Hard   Disk)
RAID  RAID0, 1, 3, 5, 6, 10, 50, JBOD,   Hot-Spare


Protocol  iSCSI, RTSP, PSIA
Data network interface per controller  

4, 1000M Ethernet interface (4 ×   GbE  or 2 × 10GbE is extendable)


Management network interface  

1, 1000M Ethernet   interface/Controller

Mini SAS interface  Supported
VGA per controller  1
USB per controller  3


Power supply  Redundant
Consumption (withHDDs)  ●      Working: ≤ 507 W (1729 BTU with 24 HDDs);

●      Rated: ≤ 800 W

Environment temperature  ●      Working: +5 °C to +35 °C (41   °F  to 95 °F)

●      Storing: -20 °C to +70 °C (-4 °F   to 158 °F)


Environment humidity  ●      Working: 20% to 80%RH (non-    condensing/frozen);

● Storing: 5% to 90%RH (non-       condensing/frozen)


Chassis  19-inch 4U
Dimensions (W × H × D)  447 x 172 x 550 mm (17.6 x 6.8 x     21.7  in)
Weight (without HDDs)  ≤ 33.5 Kg (73.9 lb)
Certification  BIS, CE, FCC


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