RAID Subsystem - Rackmount

ARC-73xx 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 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-73xx SAS RAID subsystem is a family of 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-73xx 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-73xx provides 2U/3U rack-mounted external storage chassis capable of accommodating up to 12/16 12.0-Gb/s, Serial-Attached SCSI (SAS) drives or 6.0-Gb/s Serial ATA (SATA) drives.

  Cost-Effective ARC-73xx Series 12Gb/s SAS RAID Subsystem
ARC-7312SS-DR2 ARC-7316SS-DR3
Internal Ports 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”)
132.6 x 482 x 484 mm
(5.2” x 18.9” x 19”)
Weight 37.5 lbs / 17 Kg 38.6 lbs / 17.5 Kg
Power Supply • Redundant and hot-swappable 550W x2 with PFC and energy-efficient 80Plus Platinum Compliant.
• Supports 100–240VAC input at 47 and 63Hz frequency
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-73xx-SAS Specification 1.0 2023/11/20
ARC-73xx-SAS User Manual 1.0 2023/07/14
ARC-73xx 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-73xx firmware 1.64 2022/09/05
1. Patch PL library to enable PM2 support
2. Fix used as shared storage for VMWARE cluster, 2 VMWARE servers are connected to ARC8042/73xx, add host sequentially failed
3. Seagate SAS/SATA MACH.2 support