HPE 861746-H21 861746-X21 6TB SAS-12GBPS HDD
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861746-H21 HPE 6TB SAS 6GBPS 7.2K RPM Hot-Swap LFF Hard Refurbished

Availability: In Stock
Part Number#: 861746-H21
List Price was: $1503.03
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Short Description:
861746-H21 6 Terabytes (TB) 7200 Revolutions Per Minute (RPM) Serial-Attached SCSI (SAS) 12 Gigabits Per Second (GBPS) Large Form Factor (LFF) Hot-Swap 3.5Inch with Tray Hard Disk Drive for Server | Made by HPE | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Enhanced Data Protection

RAID (Redundant Array of Independent Disks) is a technology that uses multiple hard drives to provide enhanced data protection and improved performance. RAID can be configured in different ways, known as levels, to provide different levels of protection and performance.

When the HPE 6TB SAS Hard Drive is used in a RAID configuration, it can provide enhanced data protection by creating a redundant copy of data across multiple hard drives. This means that if one hard drive fails, the data can still be accessed from the other hard drives.

The most common RAID levels that provide data protection are RAID 1, RAID 5, and RAID 6. RAID 1 creates a mirror copy of data across two hard drives, providing complete data redundancy. RAID 5 and RAID 6 use a technique called parity to provide data redundancy across multiple hard drives.

RAID support also improves performance by spreading the data across multiple hard drives, which allows for faster data access and improved overall system performance.

It is worth noting that RAID is not a replacement for backup, it is an additional layer of protection to help protect against data loss due to hard drive failure. RAID can provide protection against a single drive failure, but it will not protect data from more catastrophic events such as fire, flood, theft, or accidental deletion.

High Data Transfer Rates

High data transfer rates refer to the speed at which data can be transferred between the hard drive and the computer. A hard drive with high data transfer rates is able to read and write data faster, which can improve the overall performance of the system. The HPE 6TB SAS Hard Drive has a data transfer rate of 6 Gbps, which is faster than traditional SAS hard drives and allows for faster access to stored data. This can be especially beneficial for applications that require high levels of data throughput, such as video editing, large-scale data analysis, and other demanding workloads. A high data transfer rate also allows for faster backups and restores, which can save time and increase productivity.

Hot-Swap for Enhance Data Availability

The hot-swap feature allows for the replacement of a hard drive while the system is still running. This means that if a hard drive fails or needs to be upgraded, it can be replaced without having to shut down the system. This helps to ensure that the system remains online and available to users, minimizing downtime and interruptions to business operations.

Additionally, hot-swap feature also allows for easy upgrades or expansion of storage capacity without having to power down the system. This enables organizations to increase storage capacity without interruption and maintain high levels of data availability.

Energy-Efficient Design

Energy-efficient design is a feature that is implemented in the HPE 6TB SAS Hard Drive to reduce power consumption and increase energy efficiency. This feature is achieved through the use of advanced technologies and techniques that help to optimize the power usage of the hard drive.

One of the key technologies used in the energy-efficient design of the hard drive is the use of low-power modes. These modes allow the hard drive to use less power when it is not performing any read or write operations. Additionally, the hard drive also has a feature that helps it to automatically adjust its power usage based on the workload.

Another important aspect of energy-efficient design is the use of advanced power management features. The hard drive has features like power-saving idle modes, and other power-saving technologies that help to reduce the power consumption of the hard drive.

Key information of HPE 861746-H21

  • Brand Name: HPE
  • Model Number or SKU# 861746-H21
  • Device Type: Hard Drive - Hot-Swap
  • Capacity: 6 TB
  • Form Factor: 3.5 inch LFF
  • Interface: SAS 12 Gbps
  • Bytes per Sector: 512
  • Carrier Type: Low Profile Carrier (LP)
  • Drive Technology (Fill): Air
  • Plug Type: Hot Plug
  • Workload Type: Business Critical (Midline)
  • Features: Advanced Format 512e, Digitally Signed Firmware
  • Bundled with: HPE Low Profile Carrier
  • Platform Supported: HPE ProLiant Rack/Tower/BladeSystem Servers/Synergy

Performance about HPE 6TB SAS-12GBPS HDD

  • Drive Transfer Rate: 12 Gb/sec (external)
  • Spindle Speed: 7200 RPM
  • Seek Time: 7.45 ms (average) / 14.2 ms (max)
  • Track-to-Track Seek Time: 0.32 ms
  • OD Media Rate, Max Sequential Throughput (MiB/s): 215
  • 128Kib Random Read (IOPs): 110
  • 128Kib Random 70% RD/ 30% WT (IOPs): 115
  • 128Kib Random 50% RD/ 50% WT (IOPs): 120
  • Expansion and Connectivity
  • Interfaces: 1 x SAS 12 Gb/s
  • Compatible Bay: 3.5" LFF

Power Consumption

  • Idle Time: 4.70 Watt
  • Random Read/Write: 6.10 Watt
  • Sequential Read: 6.30 Watt
  • Sequential Write: 6.40 Watt

Dimension and Weight

  • Width : 4 Inch
  • Depth : 5.8 Inch
  • Height : 1 Inch
  • Weight : 1.52 Lbs

Environmental Parameters

  • Min Operating Temperature: 50 °F
  • Max Operating Temperature: 95 °F


  • HPE Nimble Storage dHCI Medium Solution with HPE ProLiant DL325 Gen10 Plus (3.5inch)
  • HPE ProLiant DL Series: DL180 Gen10 (3.5inch), DL180 Gen10 Entry (3.5inch), DL180 Gen10 SMB (3.5inch), DL20 Gen10 (3.5inch), DL20 Gen10 Entry (3.5inch), DL20 Gen10 Performance (3.5inch), DL20 Gen10 solution (3.5inch), DL325 Gen10 Base (3.5inch), DL325 Gen10 Plus (3.5inch), DL325 Gen10 Plus for Weka Expansion Tracking (3.5inch), DL325 Gen10 Plus V2 (3.5inch), DL325 Gen10 Plus V2 Base (3.5inch), DL325 Gen10 Solution (3.5inch), DL345 Gen10 Plus (3.5inch), DL345 Gen10 Plus Base (3.5inch), DL345 Gen10 Plus Entry (3.5inch), DL360 Gen10 Plus (3.5inch), DL385 Gen10 Plus (3.5inch), DL385 Gen10 Plus Entry (3.5inch)
  • HPE ProLiant DX Series: DX170r Gen10 (3.5inch), DX2600 Gen10 Premium (3.5inch LFF)
  • HPE ProLiant ML Series: ML30 Gen10 (3.5inch), ML30 Gen10 Entry (3.5inch), ML30 Gen10 Performance (3.5inch), ML30 Gen10 Solution (3.5inch), ML350 Gen10 (3.5inch), ML350 Gen10 Base (3.5inch), ML350 Gen10 Entry (3.5inch), ML350 Gen10 High Performance (3.5inch), ML350 Gen10 Performance (3.5inch), ML350 Gen10 SMB (3.5inch), ML350 Gen10 Solution (3.5inch), ML350 Gen10 Special Server (3.5inch), ML350 Gen10 Sub-Entry (3.5inch)

Contact us or ask for live chat/help if you have any questions about the compatibility of this item to ensure the model's matching features with your current system.

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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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

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.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

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Shipping Options and Estimated Delivery Time

UPS Shipping Options:

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Estimated delivery time: 4-7 business days

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UPS Next Day Air® First Overnight - Early A.M
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UPS® First Overnight - Saturday
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FedEx Shipping Options:

FedEx Ground®
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*For residential delivery via FedEx Ground use FedEx Home Delivery®
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FedEx Express Saver®
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Available throughout all 50 states

FedEx Standard Overnight®
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Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
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FedEx First Overnight®
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Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
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