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 2022/01/12
ARC-72xx Quick Installation Guide 1.0 2017/07/11
CLI Utility For LAN Port - User Manual 5.2 2022/01/04
LCD Manual 1.3 2015/10/20
ArcSAP User Manual 4.2 2020/11/03
File Version Date
ARC-72xx firmware 1.63 2022/06/13
1. Modify SES2 HW monitor disable, disable ALL SES2 HW monitor warning (original, disable power and fan only)
2. Fix WD 20T HDD ready
3. Fix firmware hang if some mail server is used