External RAID Controller

ARC-8088 series

(12Gb/s SAS External RAID Controller)

System Architecture

✵ Support up to 24 x 6.0Gbps SAS disk channels with six SFF8087 (Mini-SAS) connectors

✵ Support three host interface options: 12Gb/s SAS, 10Gb/s iSCSI or 16Gb/s FC

✵ SAS Expander support for connecting up to 512 SAS/SATA devices

✵ 12Gbit/s speed at each port

✵ Embedded 2GB DDR3-1866 cache

✵ Dual Core PPC476 1.2 GHz RAID-on-Chip Processor for high RAID 6 Performance and advanced power management

✵ Redundant flash image for adapter availability

✵ Support flash-based or battery backup module (FBM/BBM) ready (optional)

✵ Single or Dual RAID controller modular design

✵ Advanced configuration settings video optimized performance

✵ Support HDD firmware update all at once

Host Interface

12Gb SAS-to-SAS: Two 12Gb/s SAS Ports 16Gb/s Fibre-to-SAS: Two or four 16Gb/s Fibre channels 12Gb iSCSI-to-SAS: Two 10Gb/s iSCSI channels

High Performance ROC

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

2GB DDR3-1866 ECC Protection

Disk Interface

1 x SAS "Expansion Out" for an additional JBOD enclosure

Up to 256 devices using SAS expanders

Up to 24 x 12Gb/s internal port using 6 x Min SAS HD SFF-8643 connectors

12Gb/s SAS External RAID Controller


The ARC-8088 supports flexibility interface configuration; 8 x 12Gb/s SAS ports, 2/4 x 16Gb/s fibre channels or 2 x 10Gb/s iSCSI channel host and 4 x 12Gb/s SAS ports expander for performance and easy expansion. When used with 12Gb/s SAS expanders, the controller can provide up to (256) devices through one or more SAS JBODs, making it an ideal solution for enterprise class storage applications that called for maximum configuration flexibility.

The ARC-8088 RAID controller provides a rack-mounted external storage chassis capable of accommodating up to 12/16/24 12.0-Gb/s, Serial-Attached SCSI (SAS) drives or 6.0-Gb/s Serial ATA (SATA) drives. It provides three kinds of host interface link to the host board on the server system. The redundant controller model provides fault-tolerant links across separate host interface, while the single controller model provides a single, straight-through data path.

  ARC-8088 Series SAS RAID Controller
ARC-8088-SAS ARC-8088-2FC/4FC ARC-8088-iSCSI
RAID_on_Chip Dual Core PPC476 1.2 GHz ROC
Cache Protection 2GB on-board DDR3-1866 SDRAM with ECC protection
Host Interface SAS-to-SAS: 2 x 12Gb/s SAS Ports Fibre-to-SAS: 2/4 x 16Gb/s Fibre channels iSCSI-to-SAS: 2 x 10Gb/s iSCSI channels
Host Connector 2 x SFF-8644 2/4 x SFP+ 2 x SFP+
JBOD Expansion Port One downstream SFF-8644 (4 x 12Gb/s) expansion connector per controller
Internal Ports Up to 24 internal SAS
Drive Connectors 6 x internal SFF-8643
Max. Drives per RAID Ctrl Up to 512 12Gb/s SAS or 6Gb/s and 3Gb/s SAS/SATA HDDs/SSD, using 12Gb/s SAS JBOD
Data Transfer Rate Up to 12Gb/s per port
Physical Dimensions 146 (W) x 43 (H) x 250 (L) mm
Power Consumption Typical: 65.52W
Operating Temperature 0 °C to 40 °C
Operating Humidity 10% to 85%, non-condensing
Regulatory Certification CE, FCC
FBM/BBM Support ARC-6120BAT121-8 / ARC-1883-BAT-8 / ARC-1883-CAP-8
RAID Features
  • 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 RAID100)
  • Multiple RAID selection
  • Configurable stripe size up to 1MB
  • Support HDD firmware update all at once
  • Online array roaming
  • Online RAID level/stripe size migration
  • Online capacity expansion and RAID level migration simultaneously
  • Online volume set growth
  • SED (self-encrypting drives) function support
  • Multiple pairs SSD/HDD disk clone function
  • SSD automatic monitor clone (AMC) support
  • Instant availability and background initialization
  • Support global and dedicated hot spare
  • Automatic drive insertion/removal detection and rebuilding
  • Support for native 4K and 512 byte sector SAS and SATA devices
  • Support intelligent power management to save energy and extend service life
  • Support NTP protocol synchronize RAID controller clock over the on board Ethernet port
Availability and Reliability
  • Redundant controller operation with active/active and fail-over/fail-back function
  • Dual-active RAID controller with cache mirroring through dedicated high speed bus
  • Automatic synchronization of firmware version in the dual-active mode
  • Multi-path & load-balancing support
Warranty 3 years

Management Monitor

McRAID Storage Manager

  • Web-based GUI management utility
  • Remote configuration, monitoring, and notification
  • ArcSAP Graphical-based management utility
  • SNMP support for remote manager
  • SMTP support for email notification
  • ArcCLI (command-line interface)
  • API with sample and functional code
  • Flashable firmware via RS-232 and LAN port
  • Monitors/Notification

  • Global HDD activity/fault connector, individual activity/fault connector
  • LCD/I²C connector and alarm buzzer
  • Support 4 x 3-pin fan connector
  • Support 2 x 2-pin power status connector
  • Keep silent and adequate air flow and cooling by intelligent cooling fan speed control
  • Optional Prouduct - Accessories

    An ATX I/O Shield is a small metal plate located at the back of each rackmount chassis that provide openings for different I/O ports of a motherboard.

    ARC-8028MB-Mounting Bracket for user to leverage the ATX I/O Shield position as ARC-8088 box I/O port. You can use ARC-8028MB to fit ARC-8088 box I/O port in the standard ATX I/O-Slot found in a Rackmount Chassis.


    File Version Date
    ARC-8088 Specification 1.0 2013/02/01
    ARC-8088 User Manual 1.3 2019/07/30
    CLI Utility For LAN Port - User Manual 5.2 2022/01/04
    ArcSAP User Manual 4.2 2020/11/03
    File Version Date
    ARC-8088-SAS (12G SAS-to-SAS) firmware 1.69 2023/12/15
    1. Patch PL library to enable PM2 support
    2. Seagate SAS/SATA MACH.2 support
    ARC-8088-Fibre (16G Fibre-to-SAS) firmware 1.69 2023/12/15
    1. Patch PL library to enable PM2 support
    2. Seagate SAS/SATA MACH.2 support
    ARC-8088-iSCSI (12G iSCSI-to-SAS) firmware 1.69 2023/12/15
    1. Patch PL library to enable PM2 support
    2. Seagate SAS/SATA MACH.2 support