RAID Subsystem - Rackmount

ARC-72xx series

(12Gb/s SAS to SAS RAID Storage Subsystem)

System Architecture

✵ Dual Core RAID-on-Chip (ROC) 1.2 GHz

✵ On-board 2GB DDR3-1866 ECC SDRAM

✵ Write-through or write-back cache support

✵ Redundant flash image for adapter availability

✵ Flashed-based/Battery backup module ready (optional)

Faster Than Ever

Availability & Security

Unparalleled Performance

Host Interface

2 x SFF-8644 external connectors

8 x 12Gb/s SAS ports
(4-ports per connector)

High Performance ROC

Dual Core RAID-on-Chip (ROC) 1.2 GHz

2GB DDR3-1866 ECC Protection

Drive Interface

Up to 8/12/16 x 3.5”/2.5”
12Gb/s SAS or 6Gb/s and 3Gb/s

One downstream SFF-8644 (4x12Gb/s)
expansion connector

12Gb/s SAS to SAS RAID Storage Subsystem

The ARC-72xx RAID subsystem is a family of 8/12/16 12.0Gbps SAS hard drive ports depending upon the amount of storage required. The 12Gb/s SAS interface supports both 12Gb/s SAS disk drives for data-intensive applications and 6Gb/s SATA drives for low-cost bulk storage of reference data. The SAS to 12Gb/s SAS RAID controllers attach directly to SATA/SAS midplanes and increase capacity using one additional HD SFF-8644 external connector.

The ARC-72xx SAS to SAS RAID subsystem provides 12Gb/s SAS host interface link to the host board on the server system. This RAID controller utilizes the same RAID kernel that has been field-proven in existing internal/external SATA/SAS RAID controller products, allowing to bring stable and reliable SAS RAID external subsystem. The ARC-72xx provides 2U/3U rack-mounted external storage chassis capable of accommodating up to 8/12/16 12.0-Gb/s, Serial-Attached SCSI (SAS) drives or 6.0-Gb/s Serial ATA (SATA) drives.

  Cost-Effective ARC-72xx Series 12Gb/s SAS RAID Subsystem
ARC-7208SS-DR2 ARC-7212SS-DR2 ARC-7216SS-DR3
Internal Ports 8 x 3.5”/2.5” SAS 12 x 3.5”/2.5” SAS 16 x 3.5”/2.5” SAS
Data Transfer Rate Up to 12Gb/s per port
Cache Protection 2GB DDR3-1866 ECC Protection
Host Interface two Mini-SAS HD SFF-8644 connectors
Expansion Support Up to 512 devices using SAS expanders (one external Mini-SAS HD SFF-8644 connector)
Processor Dual Core RAID-on-Chip (ROC) 1.2 GHz processor
RAID Features • RAID level 0, 1, 10(1E), 3, 5, 6, 30, 50, 60, Single Disk or JBOD
• Multiple RAID 0 and RAID 10(1E) support (RAID 00 and RAID 100)
• Configurable stripe size up to 1024KB
• Automatic drive failover and detection and rebuild using multiple Global, Dedicated or Enclosure hot- spare drives
• Multiple pairs SSD/HDD disk clone function
• SSD automatic monitor clone (AMC) support
• SED (Self-encrypting drives) function support
• Support for native 4K and 512 byte sector devices
• Support HDD firmware update
• Hot-swap and redundant components for increasing availability
RAID Management Software • Flashable firmware via RS-232 and LAN port
• Push Buttons and LCD for setup and status
• Firmware-embedded manager via RS-232 port
• Browser-based RAID manager, SMTP manager, SNMP agent and Telnet function
• API with sample and functional code
• ArcCLI (command-line interface)
• ArcSAP monitor utility easily manage multiple RAID units
Operating Systems OS Independent
Physical Dimensions
(H x W x D)
88.2 x 482 x 484 mm
(3.5” x 18.9” x 19”)
88.2 x 482 x 484 mm
(3.5” x 18.9” x 19”)
132.6 x 482 x 484 mm
(5.2” x 18.9” x 19”)
Weight 36.4 lbs / 16.5 kg 37.5 lbs / 17 Kg 38.6 lbs / 17.5 Kg
Power Supply Dual 400W hot swap and redundant
Operating Temperature 0 °C to 40 °C
Operating Humidity 10% to 80%, non-condensing
Regulatory Certification CE, FCC
Warranty 3 years
FBM/BBM Support ARC-1883-CAP-7 / ARC-6120BAT121-7


File Version Date
ARC-72xx Specification 1.1 2020/04/01
ARC-72xx User Manual 1.2 2020/02/25
ARC-72xx Quick Installation Guide 1.0 2017/07/11
CLI Utility For LAN Port - User Manual 5.1 2020/04/20
LCD Manual 1.3 2015/10/20
ArcSAP User Manual 4.2 2020/11/03
File Version Date
ARC-72xx firmware 1.56 2019/07/23
1. Patch HGST G3 enclosure SES2 firmware update problem
2. Seagate XS960SE70004 firm rev 002, 960GB SSD problem
3. Add progress % for some http operation
4. Fix SEAGATE 84bay JBOD does not report slot string