xStack Storage® 8x1GbE iSCSI SAN Array, 16-Bay Rackmount

Description

D-Link's DSN-4200 iSCSI SAN array is a mid-range network storage solution in a 3U rackmount form factor, ideal for small and medium sized enterprises.

The heart of the DSN-4200 is a powerful 10Gbit iSCSI System-on-a-Chip (SoC) capable of handling over 80,000 I/OS per second. The DSN-4200 supports 32TB of raw capacity using 2TB drives and can be easily implemented as a supplemental backup platform for quick restores, as secondary online storage, or as bandwidth-demanding primary storage for security surveillance and A/V applications.

iSCSI for IP Networks

Storage Area Networks (SANs) have traditionally been reserved for complex Fibre Channel networks. The recent introduction of iSCSI has extended the powerful centralized storage capabilities of SAN technology to IP networks. By utilizing existing Ethernet technology, the costs associated with Fibre Channel switching, separate host bus adapters, expensive storage subsystems and administration is significantly reduced. iSCSI SANs leverage the Ethernet infrastructure and standards that are already familiar to most IT personnel.

Host Interface

The DSN-4200 iSCSI SAN array supports Multi-path I/O (MPIO), Multiple Connections per Session (MCS), and Link Aggregation Groups (LAG) for unmatched network flexibility, performance and resiliency, allowing their 1GbE data ports to be grouped together for full line speeds of up to 850MB/s bandwidth.

Expansion Options

The DSN-4200 primary array supports 16 internal SAS/SATA hard drives and with the addition of up to four DSN-4000 expansion arrays, can scale to a total of 160TB of raw storage capacity using 2TB drives.

System-on-a-Chip (SoC) Implementation

By utilizing a SoC design, the DSN-4200 combines both networking and storage functions into a single specialized Application Specific Integrated Circuit (ASIC). This SoC combines 10Gbps iSCSI, TCP & IP offload, 12 embedded processors and storage virtualization firmware onto a single chip. The tight integration of these functions eliminates interoperability, timing and support issues found in competitive products that offer a “discrete implementation” wherein various components are selected separately, then assembled.

RAID support

D-Link’s xStack Storage iSCSI SAN arrays support RAID level 0, 1, 1+0 and 5 configurations (striped sets, mirrored sets, striped mirrored sets and parity sets) for data protection and performance. D-Link supports S.M.A.R.T. disk diagnostics, and non-destructive data migration to prevent disk failure.

The maximum number of drive members on a volume is the following:
RAID-1 and RAID-10: 32 HDDs
RAID-5: 17 HDDs
RAID-O: 16 HDDs

Embedded Centralized Storage Management

The embedded, user-friendly IP-SAN Device Manager (IDM) provides a comprehensive console for system management. Boasting a rich set of management features, this suite of utilities allows monitoring and control of the SAN array via the Storage Management Initiative-Specification (SMI-S) command set. With a secure server, users can remotely configure and monitor their SAN arrays over the Internet.

Advanced Management Features

The DSN-4200 also provides an advanced set of features for efficient management and optimal storage performance.

For the fastest RAID performance offered in the industry, D-Link’s adaptive cache management provides write coalescing and multi-stream read-ahead on a volume basis, optimizing cache utilization and performance in an application dependent manner. Volatile cache data protection is afforded via an on-board battery supporting 2GB of cache memory for a minimum of 72 hours. A write-back or write-through cache memory policy can be selected manually or automatically, depending on the status of the battery’s charge.

The DSN-4200 supports jumbo frames and VLAN tagging to segregate traffic into isolated zones for secure access, improving network throughput and reducing CPU overhead.

D-Link’s volume virtualization technology utilizes the concept of storage extents, which are the fundamental building blocks used to enable features such as RAID, online capacity expansion, volume reconfiguration and migration. Each disk drive can contain multiple and divergent RAID configurations instead of requiring dedication to a single RAID set. This technology allows for the support of mixed disk drive capacities for volume creation. Volume capacity expansion, volume reconfiguration, and RAID level migration are performed online with minimal impact to users. Users can quickly deploy a SAN using inexpensive SAS or SATA disk drives and simply add more drives as needed.

An iSCSI SAN array can prove to be a valuable tool to supplement a network storage foundation. Whether providing a low-cost block-based solution for data backup and recovery, replacement of Direct Attached Storage (DAS), providing secondary online storage, or providing up to 850MB/s bandwidth for security surveillance and video post-production applications, the DSN-4200 may provide the performance and functionality needed.

DSN-4200    

• Eight 1GbE Copper

Drive Bays    

• 16, Expandable with DSN-4000 expansion arrays up to 80

Drive Interface Support    

• SAS/SATA

System Memory    

• 512MB Standard

Cache Memory    

• 1GB

Battery Backup for Cache    

• Standard (approximately 72 hours on full charge)

Bandwidth    

• Up to 850MB/s

Storage Capacity    

• Supports 32TB Capacity with 2TB Hard Drives
• Additional DSN-4000 expansion arrays support up to 160TB total capacity

Operating Systems Supported   

• Windows Vista^® 32-bit & x64 (Ultimate & Enterprise) w/Built-in iSCSI Initiator
• Windows Server^® 2003 R2 | SP1 32 & 64-bit (Standard & Enterprise) with v2.07 iSCSI Initiator or later
• Windows Server 2008 Enterprise 32 & 64-bit with Built-in iSCSI Initiator
• Windows XP Pro^® 32 & 64-bit with v2.07 iSCSI Initiator or later
• Windows 2000 Advanced Server – No MS iSCSI Initiator support, Qlogic HBA only
• Red Hat^® 7.3
• Red Hat Enterprise AS update 5 (64-bit)
• Red Hat Enterprise 5 update 2 (64-bit)
• SuSE^® Professional 9.3 32-bit
• SuSE Enterprise Server 10.2 32-bit
• Sun Solaris^® 10 build 6/06
• IBM AIX 5L
• Microsoft Hyper-V
• VMware vSphere^® 5
• VMware ESX Server^® 3.02 & 3.5
• VMware ESX Server^® 4.0 & 4.1
• Virtual Iron v4.2
• Citrix XenServer^® v4
• Mac OS X^® (10.4 & 10.5)

Supported NICs, iSCSI Accelerators and iSCSI HBAs 

• Intel^® Pro 1000MT & XT [1GbE]
• Intel Pro 10000 CX4 [10GbE]
• Myricom 10G-PCIE-8A-C+E [10GbE]
• Chelsio^® S310X-SR-XFP [10GbE]
• Neterion^® Xframe^® II & Xframe E [10GbE]
• Alacritech^® SES2104ET (drivers: SNP 9.1.0.1092 & 7.3.1.0)
• Alacritech SES2102ET (drivers: SNP 9.1.0.1092 & 7.3.1.0)
• QLogic^® 4010C, 4052C, & 4062C

Host Interface    

• iSCSI Draft 20 Compliant Initiator

Connections    

• 1,024 hosts

CHAP Authentication    

• Yes

Access Control of Management    

• Yes

iSCSI/TCP/IP Full HW Offload    

• Yes

Jumbo Frames Support    

• Yes

LAG Support (Link Aggregation)    

• Up to eight LAGs (Static LAG)

Flow Control    

• Enabled by default

RAID Controller  

• Integrated in ASIC chip

RAID Support    

• RAID Levels 0, 1, 1+0 and 5 (Striped sets, mirrored sets, striped mirrored sets and parity sets)

          The maximum number of drive members on a volume is the following:
          RAID-1 and RAID-10: 32 HDDs
          RAID-5: 17 HDDs
          RAID-O: 16 HDDs

Volumes    

• 1,024 Virtual Volumes (256 accessible per initiator)

Target Nodes    

• 1,024

Online Capacity Expansion    

• Yes

Hot Swappable Drives    

• Yes

Instant Volume Access    

• Yes

Free Space Defragmentation    

• Yes

Auto-Detection Failed Drive    

• Yes

Auto-Rebuild Spare Drive    

• Yes

RAID Level Migration    

• Yes

Drive Roaming in Power Off (configured drives are not bay-specific)    

• Yes

Micro Rebuilds    

• Yes

Embedded IP-Based Management GUI    

• Create, manage, expand and monitor storage pool, volumes and RAID
• Event manager to view and persist events

Firmware Field Upgradeable    

• Yes

SMI-S Version 1.1    

• Yes

Event Log    

• Yes

Supply Type    

• Dual Redundant Hot-Swappable 450 Watt

Input Voltage    

• 90-264 VAC

Input Frequency    

• 47-63 Hz

Current    

• 7 to 8A (100V); 3.5 to 4A(240V)

Power Factor Correction    

• PFC 80PLUS

Operating Temperature 

• 41° to 104°F (5° to 40°C)

Storage Temperature    

• -4° to 140°F (-20° to 60°C)

Relative Humidity    

• 10% to 80% (Non-condensing)

Form Factor    

• 3U industry-standard 19-inch rack

Certifications    

• CE, FCC Class B, VCCI, BSMI, CB, KCC, C-Tick, UL/cUL, TUV

Weight    

• 33 lbs  (15 kg)

Dimensions (W x D x H)    

• 17.6” x 18.5” x 5.1” (446 x 471mm x 131mm)

Warranty    

• 3 year limited¹ (Manufacturers warranty on Hard Drives)

Extended Warranty    

• Available (See ordering information below)

Support    

• 1 year (9 hours per day / 5 days per week Technical Support)

DSN-4100 

• xStack Storage^® 4x1GbE iSCSI SAN Array, 16 Bays, 3U

DSN-4200  

• xStack Storage^® 8x1GbE iSCSI SAN Array, 16 Bays, 3U

DSN-4000  

• xStack Storage^® iSCSI SAN Expansion Array, 16 Bays, 3U

DSN-210-SW  

• SureSync Replication & Synchronization Software

DSN-4100-LW    

• Extended Warranty for DSN-4100

DSN-4200-LW  

• Extended Warranty for DSN-4200

DSN-4000-LW  

• Extended Warranty for DSN-4000

<sup>1 Available in the U.S.A and Canada only.

All references to speed and range are for comparison purposes only. Product specifications, size, and shape are subject to change without notice, and actual product appearance may differ from that depicted herein.</sup>