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A16E-G2130 iSCSI to SATA RAID Subsystem
iSCSI Storage
Unified Storage
AV-STOR48000-DSS
AV-STOR24000-DSS
AV-STOR8000-DSS
AV-STOR6000-DSS
iSCSI RAID
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

AV-STOR A16E-G2130

3U Profile, 16 drive
4 x 1Gb iSCSI Host Channels to SATA-II RAID Subsystem


Highlights
  • 4 x 1GbE host ports
  • Compliant with IETF iSCSI
  • Network security over one-way/mutual CHAP, IQN, and IP access control
  • Supports up to 32 host access
  • Jumbo frame support
  • Intelligent load-balancing; internally & between host links by the multi-path software
  • Comprehensive browser-based management GUI.
  • Sixteen (16) SATA-II, 3Gb drive bays; backward compatible with SATA-I . SATA S.M.A.R.T., and NCQ support
  • Comprehensive management tools and event notification methods .
  • Life expectancy aware Li-Ion battery backup
  • Compatible with software and hardware iSCSI initiators
Overview

The A16E-G2130-4 subsystem is a powerful iSCSI RAID subsystem with hardware RAID6. With abundant bandwidth and computing power, the iSCSI RAID comes with four (4) GbE host ports and is able to satisfy the increasing demands for storage space with block-level performance and the unparalleled RAID5 and RAID6 protection.

Leading the trend of intelligent RAID storage, the A16E is a seamless integration of innovative RAID technologies with iSCSI protocols that encapsulate SCSI data blocks and carry them over sophisticated Ethernet infrastructures.

With the multi-path software and intelligent load-balancing algorithms, the subsystem readily joins into environments requiring a reliable storage pool. The subsystem is designed for a wide variety of applications, be it a quick addition to departmental needs, data warehousing, databases, or as a secondary storage besides a large storage network.

iSCSI Host Ports
  • Connectivity: - The iSCSI host ports are capable of Gigabit Ethernet with full duplex transmission. Storage volumes are associated with simulated ID/LUNs on the host channels.
    These volumes then appear as iSCSI targets over the network. The connection of these host ports is identical with connecting Ethernet network devices either point-to-point to iSCSI initiators or using Ethernet switches.
  • Subnet, CHAP, IQN, gateway, and other access control mechanisms can be applied with the iSCSI port connection.
  • The A16E subsystem supports connection through Ethernet networks to servers (iSCSI initiators) using iSCSI HBAs or SCSI packet processing software compliant with the IETF iSCSI standard (RFC 3720).

iSCSI Toplogies
The A16E subsystem provides Four Gigabit Ethernet ports for connection directly to servers or an Ethernet network.

The host-side connection can be made as the following:

  • Directly to servers or workstations equipped with iSCSI HBAs
  • via Ethernet switches and then to iSCSI stations.
  • Directly to iSCSI servers and then to stations using standard NIC’s.

Network configurations, such as subnet or VLAN settings, can be applied as long as permanent IPs are available with the subsystem’s iSCSI host ports.

Sample Topology – Direct-Attached, Dual-path Connection

In the configuration shown below, one A16E G2130 subsystem is connected to two application servers.

These servers are equipped with iSCSI HBAs and using the subsystem as the shared storage.

Multiple arrays or logical partitions can be created and made available separately through different ID/LUN’s on the host ports.

Sample Topology – IP-SAN with Multple Servers, Dual-path Connection

In the configuration shown below, one A16E G2130 subsystem is connected to five application servers.

These servers are equipped with iSCSI HBAs and using the subsystem as the shared storage.

Additional redundancy is provided by using two switches. Should one switch, hba or cable fail, the multipathing software will maintain the connection via the other switch.

Multiple arrays or logical partitions can be created and made available separately through different ID/LUN’s on the host ports.

Available models
MODELS
CONTROLLERS
CHANNELS
DRIVES
CAPACITY
A16E-G2130-1000 Single Controller SCSI-320 x 2 16 x 1000GB SATA-2
16TB
A16E-G2130-750 Single Controlle SCSI-320 x 2 16 x 750GB SATA-2
12.0TB
A16E-G2130-500 Single Controller SCSI-320 x 2 16 x 500GB SATA-2
8.00TB
A16E-G2130-250 Single Controller SCSI-320 x 2 16 x 250GB SATA-2
4.00TB
Disk Subsytem can be supplied with any quantity of disks. Please call with your requirements


Reliability

The subsystem supports a complete list of RAID configuration levels in the forms of logical drives, logical volumes and logical partitions. Multiple RAID configurations can co-exist within one enclosure, each with distinct write policy, stripe size, and optimisation modes. Hot rebuild and numerous fault correction mechanisms ensure the highest standard of RAID protection.

Safe distribution of data is embodied in many ingenious fault-preventive designs. From memory ECC, write-verify, parity regeneration, parity update tracking, Media Scan, to battery backup protection, your data is warded against factors that might cause data inconsistencies. For example, the subsystem is capable of managing storage arrays with fault containment algorithms. If a critical component fails, e.g., a battery module, the subsystem automatically disables its write-back caching and assumes the conservative writethrough mode. Algorithms like this guarantees that data is reliably managed and all risk factors are always carefully checked.

Availability

The A16E subsystem is equipped with field-hardened technologies that ensure data protection and a simple, centralised management.

The subsystems are managed by firmware developed with sophisticated RAID technologies and redundant component designs. Incorporating various data protection algorithms and featuring RAID levels 0, 1(0+1), 3, 5, 6, 10, 30, 50 and 60 the subsystem actually offers capabilities only seen in enterprise-class solutions.

To ensure a high level of system availability, critical components such as disk drives, power supplies, and cooling fans, are all redundant and hotswappable. Modules are integrated with the main signal path PCB via board-to-board or interface specific connectors to eliminate points of failure.

Assisted by GUI management software, the operating status of all components can be constantly monitored through a local or remote console.

Sericeability

All critical modules are housed in their own removable canister, including hard disk drives, power supplies, battery modules, and cooling fans. In the event of component failure, each can be replaced within seconds. Spring screws, securing latches, and key-locks all help provide easier access to the modules.

A variety of configuration and monitoring methods are available, either locally via the LCD keypad panel and the text-mode RS-232C terminal utility, or remotely through the Java-based GUI manager. All fault conditions, including module failure and abnormal voltage and temperature readings, are instantly reported. A system administrator can choose to be notified via LAN broadcast, SNMP traps, email, fax, SMS, ICQ, and MSN messenger when he is away from the installation site. Even the notification utility can be installed redundantly on two different machines to avoid the chance of blind time due to a simple component failure.

Intelligent Drive Handling
  • Media Scan: repairs data stored on bad drive sectors from adjacent stripes
  • Task Scheduler: hands free, pre scheduled Media Scan operation on disk drives
  • Replaces or clones drives showing SMART detected defects
  • Manually clones of disk drives showing defects
  • Verifies data after normal writes, rebuild writes, or Logical Drive initialisation
Adaptive Write Policy (Write-back/Write-through)
  • Optimises writes performance on receiving sequential write requests using the Write-through mode and temporarily disables synchronised cache communications
  • Automatically switches policry to adapt to random or sequential I/O requests


(c) Avante Digital Limited 2010 - All trademarks acknowledged - Page last updated Sunday, February 17, 2008