HP NAS Hard Drives: 2 Picks Ranked by Specs

Quick picks

Our 2 picks

1 Best overall

HP Western Digital Ultrastar 18TB 7200 RPM HDD

Best for: High-capacity enterprise storage with CMR reliability

Storage Capacity

18TB

Form Factor

3.5-inch

Hardware Interface

SATA 6Gb/s

Rotational Speed

7200 RPM

Cache Size

512MB

Recording Technology

CMR

View on Amazon: HP Western Digital Ultrastar 18TB 7200 RPM HDD Affiliate link

This HP-branded drive offers 18TB of storage using helium-sealed technology. It runs at 7200 RPM with a 512MB cache and SATA 6Gb/s interface. The CMR recording ensures consistent performance for heavy workloads rated up to 550TB per year. You get broad compatibility with standard 3.5-inch enclosures and remote power-cycling support. It suits users needing high capacity and reliability for continuous operation.

Pros

• 18TB helium-sealed capacity in a standard 3.5-inch form factor
• 7200 RPM rotational speed with 512MB cache for sustained throughput
• CMR recording technology with a 550TB/year workload rate limit
• Pin-3 power disable feature for remote power management

Cons

• SATA 6Gb/s interface is slower than the SAS 12Gb/s option available in this guide
• Requires a Molex-to-SATA adapter if your older power supply delivers 3.3V on pin 3
• Enterprise-grade drive may be louder and run hotter than desktop models

Good fit if

• You need maximum storage density in a standard 3.5-inch bay
• You require CMR technology for predictable write performance
• You want a drive compatible with any standard SATA controller

Skip if

• You need the higher bandwidth of a SAS 12Gb/s interface
• You are building a quiet home theater PC
• You prefer a drive with a lower power consumption profile

Verdict: HP 18TB 7200 RPM Enterprise Drive delivers high capacity and reliable CMR performance for users who prioritize storage density and workload endurance over interface speed.

2 Best budget

HP HGST Ultrastar 10TB SAS Hard Drive

Best for: SAS-based enterprise servers requiring helium cooling

Storage Capacity

10TB

Form Factor

3.5-Inch

Hardware Interface

SAS 12Gb/s

Rotational Speed

7200 RPM

Cache Size

256MB

Recording Technology

CMR

View on Amazon: HP HGST Ultrastar 10TB SAS Hard Drive Affiliate link

This HP 10TB hard drive uses CMR technology and a helium-sealed design for efficient cooling. It features a 7200 RPM rotational speed and a 256MB cache. The SAS 12Gb/s interface supports dual-port connectivity for high availability. You need a SAS HBA or RAID controller to use it. It is built for enterprise workloads with a 550TB/year workload rate limit.

Pros

• 10TB storage capacity in a standard 3.5-inch form factor
• Helium-sealed design for lower power consumption and heat dissipation
• Dual-port SAS 12Gb/s interface for high-availability server workloads
• 256MB cache and rotational vibration safeguard for stability

Cons

• Requires a SAS HBA or RAID controller; not compatible with desktop PCs
• Smaller 10TB capacity compared to the 18TB option on this list
• Enterprise-grade drive may be overkill for simple home storage needs

Good fit if

• You need a helium-sealed drive for efficient cooling in a server
• You have a SAS HBA or RAID controller ready for installation
• You require 512e advanced format for broad enterprise compatibility

Skip if

• You are connecting the drive directly to a standard desktop PC motherboard
• You need SATA connectivity instead of the SAS 12Gb/s interface
• You want a larger 18TB capacity for maximum storage density

Verdict: HP 10TB Enterprise SAS HDD is a robust choice for users with SAS controllers who prioritize helium cooling and vibration stability in a 10TB form factor.

Specifications side by side

HP NAS Drives: Spec Comparison

The HP lineup offers two distinct enterprise storage options. Both drives feature a 3.5 Inch form factor and 7200 RPM rotational speed. This high-speed rotation supports demanding workloads and ensures consistent performance for your NAS system. The first option is the HP Western Digital Ultrastar 18TB. It includes a 512MB cache and uses the SATA hardware interface. This configuration suits users who need high capacity and reliable CMR performance for large datasets. The second choice is the HP HGST Ultrastar 10TB SAS Hard Drive. It utilizes the SAS interface instead of SATA. This model is ideal for servers that require SAS-based connectivity and helium cooling for stability. You should select the SATA model for general high-capacity needs. Choose the SAS drive if your system mandates SAS controllers. Both options prioritize endurance over interface speed differences.

Who HP NAS Drives Suit

HP targets enterprise environments with high-capacity storage solutions. The range focuses on dense, reliable drives for serious workloads. You will find options for SATA and SAS interfaces, catering to different server architectures. The lineup spans from 10TB to 18TB capacities. Both models use helium sealing for stability. You should note gaps in the current selection. There are no smaller capacity drives for light home use. You also lack CMR options in the SAS category if you prefer that interface. This brand suits users needing bulk storage rather than entry-level NAS setups.

Choose HP NAS Drives By Specs

1. Check Rotational Speed

   You should verify the rotational speed for consistent performance. Both listed models operate at 7200 RPM. This speed supports demanding workloads and ensures reliable data access for your NAS system. Higher RPM values generally provide faster data retrieval times. You need this stability for enterprise-grade environments. Check the specifications to confirm the drive meets your performance requirements. Avoid drives with lower speeds if you prioritize throughput.

2. Verify Form Factor

   Ensure the drive fits your NAS enclosure. Both options use a 3.5 Inch form factor. This size is standard for most desktop and rackmount NAS units. You must confirm your chassis supports this dimension before purchasing. Smaller drives may not fit in standard bays. Larger drives might require specific mounting hardware. Always measure your available space. The 3.5 Inch size offers higher capacities and better thermal management for continuous operation in your storage array.

3. Match Hardware Interface

   Select the correct interface for your controller. The first pick uses a SATA interface. The second model utilizes a SAS interface. You cannot mix these interfaces without specific adapters. Check your NAS motherboard or RAID controller specifications. SAS drives often offer dual-port connectivity for redundancy. SATA drives are more common in consumer and prosumer NAS units. Ensure your system supports the chosen interface to avoid compatibility issues during installation.

4. Assess Cache Size

   Look at the cache size for buffer efficiency. The top-rated 18TB model includes 512MB of cache. A larger cache helps manage data flow between the drive and your system. It reduces latency during large file transfers. You benefit from smoother performance when handling multiple requests. Check the specifications for each model. Drives with insufficient cache may struggle under heavy load. Ensure the cache size aligns with your expected workload intensity.

5. Confirm Enterprise Grade

   Verify the drive is built for continuous operation. Both models are enterprise-grade solutions. They are designed for high workload endurance and reliability. You need this durability for 24/7 NAS environments. Consumer drives may fail under constant stress. Enterprise drives often include vibration compensation technology. Check the model numbers for confirmation. The HP Ultrastar series is known for robust construction. Choose these drives if you prioritize long-term data integrity and stability.

Frequently asked questions

See also

• hp western digital ultrastar 18tb vs hgst ultrastar 10tb sas
• hp hp western digital ultrastar DC review