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easyRAID Q12QS-4GR2
iSCSI Storage
Unified Storage
A16E-G2130 RAID
A12E-G2121 RAID
easyRAID Q16QS-4GR3
easyRAID Q12QS-4GR2
iSCSI Connectivity
Qlogic 4050/4052 HBA
SANRAD V-Swtich 2000
SANRAD V-Switch 3000
Disk Based Backup
Overland REO1000
Overland REO4000

easyRAID Q16QS-4GR3
with RAID 6


The easyRAID Q16QS-4GR3 is a single controller, iSCSI to SAS RAID system, in a compact 3U - 16 bay chassis, featuring hot-swappable power supplies and fans.

The RAID controller, fans, and power supplies are modularised allowing for easy removal from the rear of the unit.

System setup is simple using web browser allowing easy remote configuration and monitoring.

Copy-on-Write snapshot functionality is built into the controller to help protect your data.

iSCSI protocol uses TCP/IP to transfer data, which only requires an ethernet interface, and enables easy integration into your current network infrastructure. iSCSI encapsulates SCSI commands and data into TCP/IP packets to transfer through a ethernet network. By using TCP/IP to transfer ensures that the transmission is successful, and provides a reliable means of transfering data. Also, by using your current network infrastructure reduces the total cost of ownership.

Key Features

Snapshot and Rollback

The Q16QS implements a is Copy-on-Write snapshot technology implemented that utilizes a small pre-designated volume for the snapshot, known as the snapshot UDV.

When the snapshot is initially setup, metadata, or a table of contents, of the original volume is copied, and thus makes the snapshot instantaneous.

Before new data is written the original data is copied to the snapshot UDV, and the new data is written to the original data blocks. In the event of file corruption, accidental overwriting, or a virus infection, a rollback can be performed to restore any remaining original data.

Online Volume Group, User Data Volume Expansion and RAID Level Migration

Volume Groups can be easily expanded using built-in GUI utilities, allowing your storage requirements to grow when your needs grow. Likewise, User Data Volumes (UDV) can be expanded online.

A unique feature to the Q16QS is RAID level migration, which allows you to upgrade, or downgrade, RAID levels online.


RAID 6 improves over the industry standard RAID 5 by adding another parity disk which enables greater reliability and data protection.

SCSI Enclosure Services (SES) management

This feature allows users to communicate using an iSCSI initiator to the RAID subsystem to monitor voltages, temperature, and other diagnostic information.

MPIO and MC/S Ready

Multipath I/O and Multiple Connection per session use physical paths to create logical paths between the host and storage device. If a physical path were to fail, the multipath software will use an alternate path to the storage device to enable users continued access to their data

CHAP Authentication

Challenge Handshake Authorization Protocol, or CHAP, is a powerful authentication method used for point-to-point user login. When using CHAP, the server will send an authentication key to the client for encrypting the username and password. By using the CHAP authentication, the user login process will be encrypted and secure.

Link Aggregation or Trunking

Link Aggregation Control Protocol (LACP), part of IEEE 802.32ad, allows users to bind together both Ethernet ports of the SA-6643S into a single logical channel to increase bandwidth.

Trunking uses similar binding methods, combining both Ethernet ports as a single logical port, can increase the bandwidth as well.

Global or Dedicated cache by volume

Controller cache can be configured as Global or Dedicated for specific volumes. This function provides users the ability to dedicate more cache resources to a mission-critical volume to enable higher performance and reliability.

Battery Backup Unit

An optional BBU can be included in the RAID system to ensure data integrity in the event of a power outage. The BBU, or battery backup unit, will provide power to the on-board cache of the RAID controller in the event of a power outage. This will allow any data that is still stored on the cache to be saved until power is restored. Once power is restored, the RAID controller will flush the cache to drives.

Available models

Q16QS-4GR3-300S 16 x 300GB Seagate SAS 15000rpm
4 x 1Gbit iSCSI
Q16QS-4GR3-146S 16 x 146GB Seagate SAS 15000rpm
4 x 1Gbit iSCSI
Q16QS-4GR3-1000 16 x 1000GB Seagate (24x7) SATA-II
4 x 1Gbit iSCSI
Q16QS-4GR3-750 16 x 750GB Seagate (24x7) SATA-II
4 x 1Gbit iSCSI
Q16QS-4GR3-500 16 x 500GB Seagate (24x7) SATA-II
4 x 1Gbit iSCSI
Q16QS-4GR3-250 16 x 250GB Seagate (24x7) SATA-II
4 x 1Gbit iSCSI
Q16QS-4GR3 RAID system without disks
4 x 1Gbit iSCSI


Host Interface: iSCSI
Data Transfer Rate: Up to 2Gbps
Number of Host Channels: 4
External Connector Type: Ethernet

Controller CPU: Intel IOP342 RISC CPU
Cache Memory: 1GB - (

optional 2GB)

Disk Interface: SAS (3 Gb/sec)
Number of Disk Channels: 1


Hot Swap Disk Tray: 3.5" hot-swappable tray
Hot Swap Fan: 2 x Turbo Fan
Hot Swap Power supplies: 350 W x 2 Redundant
AC Input Voltage: 100 to 240V (+/- 10%), 47 to 63 Hz

RAID Levels: JBOD, 0, 1, 0+1, 3, 5, 6, 10, 30, 50, 60
Data Rebuild: Automatic Data Regeneration
RAID Features: Global or Dedicated Hotspare, Multiple Host ID, Multiple RAID Volume Group, Multiple User Data Volumes, and Foreground or Background Initialization, Array Roaming
Remote Backup: Optional
Snapshot: Yes (Copy-on-Write)

Front Panel LCD and Buttons: Easy access for configuration and status report.
RS-232 Terminal: User Friendly interface for configuration and status report
Web browser GUI: Embedded GUI management interface
Event Notification: Built-in buzzer, e-mail, SNMP, syslog, and windows & browser pop-up
Management AP: Windows MPIO

Humidity: 20% to 80% non-condensing
Operating Temp: 5 °C to 40 °C
Non-Operating Temp: -25 °C to 60 °C
Safety Regulatory: UL, CUL, CB
EMC Standard: FCC, CE, C-Tick, BSMI

Physical Dimensions: 485 (W) x 565 (D) x 132 (H) mm
Physical Weight: 24 Kgs (without drives)
Packed Dimensions: 610 (W) x 790 (D) x 450 (H) mm
Packed Weight: 33 Kgs (without drives)              

(c) Avante Digital Limited 2010 - All trademarks acknowledged - Page last updated Sunday, August 3, 2008