IBM 1746A2D Bay 12 Enclosure System Storage
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1746A2D IBM DS3512 DAS Enclosure System Storage RAID Rack Refurbished

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Part Number#: 1746A2D
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Short Description:
1746A2D DS3512 DAS Hard Drive Array RAID (Redundant Array of Independent Disks) Supported Serial-Attached SCSI (SAS) 12 Total Bays Network 2U Rack-mountable | Made by IBM | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Overview of the IBM 1746A2D DS3512 DAS Hard Drive Array

The IBM 1746A2D DS3512 is a Direct-Attached Storage (DAS) solution designed to provide storage capabilities for various applications and environments. Let's delve deeper into its features and functionalities.

RAID Support

The DS3512 supports RAID (Redundant Array of Independent Disks) configurations, allowing for data redundancy and performance optimization.

Storage and Bays

Serial-Attached SCSI (SAS)
  • The DS3512 uses Serial-Attached SCSI (SAS), a high-speed interface that facilitates fast and reliable data transfer between storage devices and the server.
Total Bays
  • Total Bays: 12
    • These bays accommodate the hard drives, allowing for storage expansion and management.

Network Connectivity

Rack-Mountable Design
  • The DS3512 is designed for rack-mounting in a 2U (2 unit) space, making it suitable for installation in standard server racks.

Benefits and Applications

Data Redundancy and Performance
  • RAID support ensures data redundancy and performance enhancement, crucial for data integrity and system efficiency.
Scalable Storage
  • With 12 total bays, the DS3512 provides scalability, allowing businesses to expand their storage capacity as needed.
Network Integration
  • Network connectivity enables seamless integration into existing network infrastructures for efficient data access and management.

Common Uses

Enterprise Applications

  • The DS3512 is well-suited for enterprise-level applications requiring reliable and scalable storage solutions.

Server Environments

  • Ideal for server environments seeking enhanced storage capabilities and efficient data management.

Data Integrity Assurance

  • Used in scenarios where data redundancy and integrity are critical, such as backup and archival systems.

Energy Efficiency and Power Consumption

The IBM DS3512 DAS (Direct-attached storage) Hard Drive Array is a storage solution that provides a high level of storage capacity, availability, and performance. Here are some points regarding the energy efficiency and power consumption of this device:

  • Energy efficiency: The IBM DS3512 DAS Hard Drive Array is designed to be highly energy-efficient. It uses power supplies that are 80 Plus Bronze certified, which means that they meet a certain level of energy efficiency standards. Additionally, the device has power-saving features that help reduce energy consumption when the drives are not in use.
  • Power consumption: The power consumption of the IBM DS3512 DAS Hard Drive Array depends on a few factors, such as the number of hard drives installed, the type of hard drives, and the activity level of the device. Typically, the device consumes between 120 to 230 watts when fully loaded with drives.
  • RAID support: The IBM DS3512 DAS Hard Drive Array supports various RAID configurations, which help improve data availability and redundancy. However, using RAID can also affect the power consumption of the device. For example, a RAID 5 configuration may consume more power than a RAID 0 configuration due to the additional parity calculations required.
  • Network connectivity: The IBM DS3512 DAS Hard Drive Array has two network ports for connectivity. These ports are used for management and configuration purposes, and they do not affect the power consumption of the device.
  • Rack mountable: The IBM DS3512 DAS Hard Drive Array is a 2U rack-mountable device, which means it can be installed in a standard server rack. This can help reduce the physical footprint of the device and improve the efficiency of the data center by consolidating multiple storage devices into a single location. However, it's important to ensure proper ventilation and cooling in the rack to prevent the device from overheating, which can affect its power consumption and performance.

Data Protection Features

The IBM DS3512 DAS hard drive array comes with several data protection features that ensure the safety and integrity of the stored data. Some of these features include:

  • RAID support: The device supports various RAID levels, including RAID 0, 1, 3, 5, 6, 10, 50, and 60. These RAID levels provide different levels of data protection by distributing data across multiple disks and providing redundancy in case of disk failures.
  • Hot-swap drives: The DS3512 allows for hot-swapping of failed drives without the need to shut down the system. This minimizes downtime and ensures that the data is always available.
  • Dual controller support: The device supports dual controllers for redundancy and failover. If one controller fails, the other takes over, ensuring continuous access to data.
  • Battery-backed cache: The DS3512 has battery-backed cache to protect data in the event of a power outage. This ensures that any data in a cache is written to disk, preventing data loss.
  • Secure erase: The device supports secure erase of data, which permanently removes all data from the disks, making it unrecoverable. This feature is useful when disposing of the device or when selling it.

General Information about this IBM 1746A2D

  • Manufacturer: IBM
  • Model Number or SKU# 1746A2D
  • Device Type: Hard Drive Array

Enclosure Type

  • Rack-mountable - 2u Cabinet (chassis)


  • Installed Devices / Modules Qty: 0
  • Supported Devices / Modules Qty: 12
  • Supported Drives: Serial Attached SCSI 2
  • Max Supported Capacity: 24 Terabytes (TB)
  • HDD Array External Interface: Serial Attached SCSI 2

Storage Controller

  • Type: 2 x RAID
  • Cache / Buffer Size (Max): 2 Gigabytes (GB)
  • Supported Devices: Disk Array (RAID)
  • RAID Level: RAID 0, RAID 1, RAID 3, RAID 5, RAID 6, RAID 10
Hard Drive
  • Type: Hot-swap - Plug-in Module
  • Capacity: 0 (Each drive can support varying capacities)
Expansion / Connectivity
  • Expansion Bays Total (Free): 12 (12) x Hot-swap - 3.5 LFF
  • Interfaces:
    • 4 x Serial Attached SCSI 2 (Input) - 26 Pin 4x Shielded Mini Multilane SAS (SFF-8088)
    • 2 x Serial Attached SCSI 2 (Output) - 26 Pin 4x Shielded Mini Multilane SAS (SFF-8088)
    • 4 x Ethernet (Management)
  • Power Device: 2 x Power Supply - Hot-plug - Plug-in Module
  • Max Supported Qty: 2
  • Power Redundancy: Yes
  • Power Redundancy Scheme: 1+1
  • Voltage Required: AC 120/230 V (50/60 Hz)
  • Power Provided: 585 Watts

In summary, the IBM 1746A2D DS3512 DAS Hard Drive Array is a reliable storage solution equipped with RAID support, Serial-Attached SCSI connectivity, and a scalable design with 12 total bays. It serves as an ideal storage solution for various applications, ensuring data integrity, scalability, and seamless integration into existing server environments.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.


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30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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