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

RAID (Redundant Array of Independent Disks) is a method of using multiple hard drives to increase data storage capacity, performance, and data protection. There are several types of RAID configurations, each with their own advantages and disadvantages.

RAID 0, also known as striping, splits data across multiple hard drives, which increases the read and write performance. However, it does not provide any data protection, as any failure of one of the hard drives in the array results in the loss of all data.

RAID 1, also known as mirroring, creates a copy of the data on two or more hard drives. This ensures that if one hard drive fails, the data can still be accessed from the other hard drive. However, this configuration only provides protection against one hard drive failure and does not increase performance.

RAID 5 and RAID 6 use striping and parity data to provide both performance and data protection. RAID 5 uses parity data to rebuild data in case of a single hard drive failure, while RAID 6 uses two sets of parity data to rebuild data in case of two hard drive failures.

RAID 10 combines the benefits of RAID 1 and RAID 0 by using mirroring and striping. It provides both data protection and performance, but requires at least four hard drives.

When it comes to HPE 6TB SAS hard drive, it can be used in any RAID configuration as long as it meets the required number of hard drives for the specific RAID type.

Large Form Factor (LFF) is a term used to describe the physical size of a hard drive. LFF hard drives are typically larger in size than their Small Form Factor (SFF) counterparts. This means they take up more space in a computer or server, but they also have a higher storage capacity.

The HPE 6TB SAS Hard Drive is a LFF hard drive, which means it is designed to fit into larger computer cases or servers that can accommodate the larger size of the drive. This makes it an ideal choice for businesses or organizations that require a large amount of storage space for data storage or backup.

In terms of compatibility, LFF hard drives are typically compatible with most servers and storage arrays that have the necessary space to accommodate them. However, it is important to ensure that the server or storage array has the correct connection interface, such as SAS, before installing the drive. It is also important to check the maximum storage capacity of the server or storage array to ensure that the LFF hard drive will fit.

Energy efficiency and power consumption are important factors to consider when selecting a hard drive, as they can have a significant impact on the overall cost of operating a computer or server. The HPE 6TB SAS Hard Drive is designed to be energy efficient, using less power during operation and idle times.

The hard drive uses a lower power mode when not in use, which reduces the amount of energy required to keep the drive spinning. This can help to save on electricity costs and prolong the life of the drive. Additionally, the hard drive is designed to be compliant with energy-efficient standards such as Energy Star, which means it meets certain energy consumption criteria set by the US Environmental Protection Agency.

In terms of power consumption, the HPE 6TB SAS Hard Drive has a typical power consumption of 11 watts when in use and 4.5 watts when idle. This is considered to be relatively low compared to other hard drives on the market, making it a good choice for those looking to save on energy costs.

It's worth noting that the power consumption of the hard drive will also depend on how it is used and configured, as well as the specific computer or server it is installed in. For example, using the hard drive in a RAID configuration may increase power consumption. It's always important to consult the manufacturer's specifications and consult with professionals before making any decision.

• Brand Name: HPE
• Model Number or SKU# 861746-X21
• 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

• 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)

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