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Eonstor ESDS B12S-G2240
Affordable and Flexible Storage Solutions Featuring Enterprise-Class Data Protection

Infortrend Eonstar DS Family SAS Host Series

EonStor DS Family
SAS-to- (2.5") SAS models
USA: FREE Ground ShippingESDS B12S-G2240
Contact us for pricing!

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The ESDS B12S-G2240 is a 6Gb/s SAS-based storage system that helps SMBs easily deploy a direct-attached storage (DAS) environment. Accommodating 12 small form factor (SFF) 2.5 -inch drives in a high-density 1U enclosure, the single-controller ESDS B12S-G2240 delivers optimal performance density. Its enterprise-class data protection and outstanding performance can generate significant business advantages.

Downtime can have serious consequences for enterprises and SMBs. The challenge for SMBs is to pro-actively prevent downtime within a limited budget. With today's price points in mind, EonStor DS provides comprehensive data protection to ensure the highest data availability for Fibre Channel and iSCSI-host systems in storage area networks (SAN) and SAS-host systems in direct attached storage (DAS) environments. Coupled with advanced hardware, modular architecture, easy and intuitive management and exceptional price-performance, EonStor DS brings price-conscious companies a decisive competitive edge by making IT efficiency keep up with growing storage needs.

High-Availability Solutions

Data availability is critical to any business operation. Infortrend’s EonStor DS storage solution features high-availability hardware designs with redundant, hot-swappable hardware components, such as RAID controllers, power supplies and cooling fans, to eliminate single point of failure. Hardware RAID protection ensures data accessibility during drive failure. In the event of a power outage, CacheSafe technology will automatically leverage power of the Battery Backup Unit (BBU) to safeguard cached data by writing it to a flash module for permanent retention. To protect valuable data sets against more critical threats, EonStor DS also supports snapshot and volume copy/mirror features. Data availability can be achieved with minimal downtime in case of human errors or data volume failure by employing these features. Leverging Infortrend's worlclass RAID engine, the EonStor DS SAS-series delivers excellent performance for demanding business applications. The models supporting Small Form Factor (SFF) drives can further increase performance density to support highly IO-intensive applications.

Flexible Scalability

The EonStor DS storage solution supports dynamic scaling to aid in the planning for future storage growth while satisfying current storage needs. Flexible drive type and capacity support (2.5-inch or 3.5-inch SAS drives and various drive sizes) satisfies current applications and enables you to accommodate future needs. A single EonStor DS SAS-series storage system can be expanded up to 240 drives to meet the proliferation of storage growth. The “scale as you grow” flexibility of the EonStor DS storage solution minimizes upfront investments and provides the best overall Total Cost of Acquisition (TCA).

Intuitive and Easy Management

Storage management should be simple. The EonStor DS storage solution includes a comprehensive management software suite, SANWatch, to centrally manage multiple EonStor DS subsystems over a standard TCP/IP network. EonStor DS status and event information summary can be viewed on the portal window. Necessary functions to configure, manage and monitor the EonStor DS are only a few clicks away. Besides providing all firmware features through a user-friendly GUI, SANWatch also supports script-based configuration of multiple EonStor DS subsystems simultaneously. Automatic critical event notifications can be customized to suit the most critical storage environment. SANWatch will guide users through initializing, configuring and maintaining the EonStor DS every step of the way.

High Energy Efficiency

Contributing to environmental sustainability, the EonStor DS storage solution enables energy cost savings while maintaining performance. It is equipped with power saving designs such as high-efficiency power supplies, dynamic cooling mechanism and intelligent multi-level drive spin-down technology.

Superior Performance Levels

EonStor DS G7 systems offer superior performance levels that are ideal for mission-critical applications. Featuring advanced hardware platforms, EonStor DS G7 SAS solutions provide superior throughput of up to 5,200 MB/s Read and 3,100 MB/s Write and support up to 400K IOPS.


Reliability and Availability

  • Snapshot and volume copy/ mirror functionality enables quick data recovery after logical and physical errors
  • Redundant and hot-swappable hardware components eliminate single point of failure
  • Multiple hardware RAID levels protect data against drive failure
  • CacheSafe technology protects cached data during a power outage


  • Leverage 2.5-inch drives to achieve optimal performance density
  • Hybrid SAS/iSCSI connectivity models offer remote replication and DAS/SAN consolidation
  • EonStor DS G7 solutions deliver superior performance ideal for mission-critical apps

Optimized Utilization

  • Thin provisioning optimizes capacity utilization and simplifiesstorage planning and monitoring


  • Scale capacity (up to 240 drives) through expansion enclosures


  • User-friendly and intuitive SANWatch interface allows for simple storage management


  • Energy efficient power supplies
  • Dynamic cooling
  • Intelligent multi-level drive spin-down

Features & Benefits:

Features Benefits
Thin provisioning Ensure the most efficient allocation of pooled capacity
Data protection:
  1. Snapshot
  2. Volume copy/Volume mirror
Support the highest data availability and quick service restart after storage accidents
Two 6Gb/s SAS host ports Best-in-class throughput power; ideal fit for bandwidth-demanding applications
Accommodates twelve 2.5-inch drives in a 1U enclosure Provides enterprise-class performance with high-density configuration
Green design:
  1. High-efficiency power supplies
  2. Intelligent multi-level drive spin-down technology
  1. Power supplies delivering more than 80% energy conversion efficiency
  2. In spin-down state, drives can save up to 60% of energy consumption
CacheSafe technology Backup battery automatically supplies power to write cached data into flash module for permanent protection during power outage
Fault-tolerant hardware modules Redundant PSUs, fans; high-availability hardware design, preventing "single-point-of-failure"
Expansion up to 108 HDDs "Pay-as-you-grow" scalability; no waste on what you don't need, and no worries about what you will need
Powerful management suite (SANWatch) support, including multi-pathing functions
  1. Easy management and monitoring of your subsystems anywhere, locally or remotely
  2. Recognize and manage redundant paths; support path failover and load-balancing
Multiple monitoring methods Real-time problem detection and notification to achieve continuous operation


ESDS B12S-G2240 Specifications
Host Ports Two 6Gb/s SAS ports
Storage Controller Single controller
Cache Memory Default 1GB, up to 4GB
** The default capacity may vary by region; please contact our sales representatives for details
Drive Connectivity
  • 6Gb/s SAS connectivity
  • Accommodates 2.5-inch disk drives
  • S.M.A.R.T. support
  • Automatic bad-sector reassignment
  • Dedicated bandwidth to each connected drive
Supported Drives
  • 2.5" SAS SSDs - 200GB or 400GB
  • 2.5" SATA SSDs - 100GB, 200GB or 300GB
  • 2.5" 10,000 RPM SAS drives - 300GB, 450GB, 600GB or 900GB
  • 2.5" 15,000RPM SAS drives - 147GB or 300GB
  • 2.5" 7,200RPM SATA drives - 250GB, 500GB or 1TB
** For the latest compatibility details, please contact our sales representatives
Maximum Number of Drives
  • Per system: 12
  • Via JBOD: 108
Corresponding Expansion Enclosure Please refer to Related Information
Form Factor 1U
RAID Functionality
  • Global, delicated or enclosure hot-spare
  • RAID levels supported : RAID 0, 1 (0+1), 3, 5, 6, 10, 30, 50, 60
  • Online expansion by:
    • Adding new drives
    • Copying and replacing drives with drives of larger capacity
  • RAID migration
  • Configurable stripe size and write policy per system
  • Intelligent drive handling
    • In degraded mode: skips irreparable blocks to continue rebuild
    • In normal operation: data-block verification and repair
Data Services
  • Thin provisioning
  • Local replication **
    • Snapshot
    • Volume copy/ mirror
** Available with Standard license and optional Advanced license
Green Design
  • High-efficiency power supplies
  • Intelligent multi-level drive spin-down
Availability and Reliability
  • Redundant, hot-swappable hardware modules
  • CacheSafe technology**
  • Multi-pathing support (EonPath)
  • Device mapper support
** Optional BBU and flash backup module need to be purchased to activate CacheSafe technology
Notification Various event notification methods including email, LAN broadcast, fax, SNMP traps, SMS, and Skype.
  • Java-based SANWatch management software
  • RS232 serial port for local access to firmware-embedded utility
  • Automated cache flush and caching mode operation per enclosure status
  • Telnet and SSH system monitoring via Ethernet
  • Platform-independent firmware management GUI
  • LCD keypad panel for monitoring and access to all configuration options
  • Module status LED indicators: component presence detection & thermal sensors via I2C bus
OS Support
  • Windows Server 2003
  • Windows Server 2008, 2008 R2 (including Hyper-V)
  • RedHat Enterprise Linux
  • SUSE Linux Enterprise
  • Sun Solaris
  • VMware
** For the latest OS support details, please contact our sales representatives.
Service and Support
  • Standard service: 3-year limited harware/software warranty and 8x5 phone, web, and email support
  • Upgrade/Extension service*:
    Replacement part dispatch on the next business day (up to 5 years)
    • Advanced Service: 24x7 phone, web and email support + onsite diagnostics on the next business day
    • Premium Service: 24x7 phone, web and email support + onsite diagnostics in 4 hours
* Optional
** Service may vary by region
  • Power supplies: Two 250W DC
  • AC voltage: 100VAC @ 6A to 240VAC @ 3A with PFC (auto-switching)
  • Frequency: 47-63 Hz
  • Temperature:
    • Operating: 0 to 40°C without BBU or CBM / 0 to 35°C with BBU or CBM
    • Non-operating: -40 to 60°
  • Altitude: Sea level to 3660m (12,000ft) operating / sea level to 12,192m (40,000ft) non-operating
  • Relative humidity: 5 to 95% non-condensing, operating and non-operating
Dimensions Without chassis ears / protrusions: 445mm (W) x 44mm (H) x 541mm (D)
Weight Without HDDs:13.36kg (29.41lbs)
Package Dimensions 780mm (W) x 220mm (H) x 590mm (D)


Download the EonStor SAS Series Datasheet (PDF).


EonStor DS Family
SAS-to- (2.5") SAS models
USA: FREE Ground ShippingESDS B12S-G2240
Contact us for pricing!