Seagate Exos 22TB 7200 RPM or Seagate Exos 26TB CMR Hard? Which Seagate Model to Buy
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
When you compare the seagate exos 22tb sata HDD vs exos 26tb internal hard, you look at two enterprise-class drives. Both use 3.5-inch form factors and 7200 RPM rotational speeds. They both feature SATA 6Gb/s interfaces for broad compatibility. The main difference lies in storage capacity and specific engineering details. The 22TB model emphasizes power efficiency through helium sealing. The 26TB model highlights higher capacity and explicit cache specifications. You need to decide which specs best match your server requirements.
Key differences
| Aspect | Seagate Exos 22TB 7200 RPM SATA HDD | Seagate Exos 26TB CMR Hard Drive |
|---|---|---|
| Storage Capacity | 22TB | 26TB |
| Cache Size | not listed | 512MB |
| Recording Technology | not listed | CMR |
| Special Design | Helium Sealed | not listed |
Which one should you choose?
Choose Seagate Exos 22TB 7200 RPM SATA HDD if
- You prioritize proven helium-sealed design for lower power consumption per terabyte.
- You need a reliable enterprise drive with a slightly lower total capacity.
Choose Seagate Exos 26TB CMR Hard Drive if
- You require the maximum available storage capacity in a single drive.
- You want explicit confirmation of CMR recording technology and 512MB cache.
Verdict: Choose the 22TB drive if you value the helium-sealed design for efficiency. Select the 26TB model if you need the highest possible capacity and explicit CMR specifications. Both are suitable for demanding enterprise workloads.
Exos 22TB vs Exos 26TB Specs
Storage Capacity
The Seagate Exos 26TB CMR Hard Drive offers 26TB of storage, while the Seagate Exos 22TB 7200 RPM SATA HDD provides 22TB. This four-terabyte difference matters for large-scale deployments. You get more raw space with the 26TB model, reducing the number of drives needed in your chassis. The 22TB unit is still substantial, but the 26TB drive gives you higher density. If your primary goal is maximizing total capacity per bay, the larger drive is the practical choice. This advantage belongs to the 26TB model.
Recording Technology
The Seagate Exos 26TB CMR Hard Drive explicitly lists CMR recording technology. The Seagate Exos 22TB 7200 RPM SATA HDD data does not specify its recording method. CMR (Conventional Magnetic Recording) is generally preferred for enterprise workloads due to consistent write performance. It avoids the potential slowdowns associated with SMR (Shingled Magnetic Recording). Knowing you have CMR helps ensure sustained performance under heavy loads. Since the 22TB specs are silent on this, the 26TB drive has the clearer advantage for performance-critical environments.
Cache Size
The Seagate Exos 26TB CMR Hard Drive features a 512MB cache. The data for the Seagate Exos 22TB 7200 RPM SATA HDD does not list a cache size. A larger cache can help buffer data during intensive read and write operations, smoothing out performance spikes. While both drives operate at 7200 RPM, the 26TB model provides a known, substantial buffer. Without cache data for the 22TB drive, you cannot verify if it matches this specification. The 26TB drive wins this round by offering a verified larger buffer.
Rotational Speed
Both drives operate at 7200 RPM. The Seagate Exos 22TB 7200 RPM SATA HDD and the Seagate Exos 26TB CMR Hard Drive share this rotational speed. This is a standard enterprise speed that supports sustained data transfer rates. Neither drive has an advantage here as they are identical in this metric. You can expect similar base performance characteristics from both regarding spin speed. This round is a tie.
Form Factor
Both the Seagate Exos 22TB 7200 RPM SATA HDD and the Seagate Exos 26TB CMR Hard Drive use a 3.5-inch form factor. This standard size fits most enterprise server racks and desktop workstations designed for full-size drives. Compatibility with existing drive bays is identical for both models. You do not need to worry about physical size differences when installing either drive. This round is a tie.
Interface Compatibility
Both drives feature a SATA 6Gb/s interface. The Seagate Exos 22TB 7200 RPM SATA HDD and the Seagate Exos 26TB CMR Hard Drive support this standard connection. This ensures wide compatibility with most motherboards, RAID controllers, and NAS systems. You can use either drive in existing setups without needing new cables or adapters. The interface speed is the same, so data transfer limits are identical. This round is a tie.
Which Seagate Exos Drive Fits You
You need maximum raw storage capacity
The Seagate Exos 26TB offers 26TB of total storage space. This provides four extra terabytes compared to the 22TB model. The 512MB cache helps manage large data blocks efficiently. If your primary goal is fitting more files into a single drive, this higher capacity unit is the logical choice for your storage needs.
You prefer proven helium sealed design
The Seagate Exos 22TB features a helium-sealed drive design. This construction lowers power consumption and reduces weight. It includes PowerBalance technology to optimize watts per terabyte. If you value energy efficiency and a sealed environment for durability in your enterprise setup, this model delivers those specific engineering benefits.
You require CMR recording technology
The Seagate Exos 26TB explicitly lists CMR recording technology. This ensures consistent write speeds for data-intensive applications. It also carries a 2.5M MTBF rating for reliability. If you need confirmed CMR performance for sustained enterprise workloads without variable speed issues, this drive provides the necessary technical assurance for your systems.
The products compared
Seagate Exos 22TB 7200 RPM SATA HDD
Best for: enterprise data centers needing 7200 RPM performance
- Storage Capacity
- 22TB
- Form Factor
- 3.5-inch
- Hardware Interface
- SATA 6Gb/s
- Rotational Speed
- 7200RPM
- Weight
- 1.85 pounds
View on Amazon: Seagate Exos 22TB 7200 RPM SATA HDD Affiliate link
The Seagate Exos 22TB is a 3.5-inch enterprise hard drive with 7200 RPM rotational speed and SATA 6Gb/s interface. It uses a helium-sealed design to improve durability and power efficiency. This drive offers 22TB of storage capacity for demanding workloads. It suits users who need reliable performance for cloud data centers or massive scale-out applications. The unit weighs 1.85 pounds.
Pros
- 22TB storage capacity in a 3.5-inch form factor
- 7200 RPM rotational speed for high performance
- Helium-sealed design reduces power consumption
- SATA 6Gb/s hardware interface
Cons
- Lower capacity than the 26TB option on this list
- Renewed condition rather than new
- Heavier build at 1.85 pounds
Good fit if
- You need enterprise-grade reliability for data centers
- You require 7200 RPM performance for heavy workloads
- You want power efficiency through helium sealing
Skip if
- You need the maximum available capacity of 26TB
- You prefer a brand-new drive over renewed stock
- You are building a quiet home media server
Verdict: Seagate Exos 22TB Enterprise HDD is a solid choice for users prioritizing rotational speed and helium-sealed durability over raw capacity. It fits data center environments better than smaller home drives.
Seagate Exos 26TB CMR Hard Drive
Best for: high-capacity enterprise storage arrays
- Storage Capacity
- 26TB
- Form Factor
- 3.5 in
- Hardware Interface
- SATA 6Gb/s
- Rotational Speed
- 7200 RPM
- Cache Size
- 512MB
- Recording Technology
- CMR
View on Amazon: Seagate Exos 26TB CMR Hard Drive Affiliate link
The Seagate Exos 26TB offers 26TB of storage using CMR technology and a SATA 6Gb/s interface. It spins at 7200 RPM with 512MB of cache, targeting enterprise-class reliability. This drive suits users needing high capacity for data-intensive applications. Its 2.5M MTBF rating indicates durability for continuous operation. You get wide system compatibility through the standard SATA connection.
Pros
- 26TB ultra-high storage capacity
- CMR recording technology for reliability
- 7200 RPM rotational speed
- 512MB cache for performance
- SATA 6Gb/s interface
Cons
- Heavier and bulkier 3.5-inch form factor
- Higher power draw from 7200 RPM speed
- No NVMe or USB connectivity options
Good fit if
- You need maximum storage density in a single drive
- You run enterprise-class workloads requiring high reliability
- You use standard SATA connections for compatibility
Skip if
- You require silent operation for a home office
- You need compact 2.5-inch storage for small form factor builds
- You prioritize fast boot times over bulk storage
Verdict: Seagate Exos 26TB 7200RPM CMR HDD is ideal for users building high-capacity enterprise storage arrays. It fits those prioritizing raw capacity and sustained performance over compact size.
Specifications side by side
| Spec | Seagate Exos 22TB 7200 RPM SATA HDD | Seagate Exos 26TB CMR Hard Drive |
|---|---|---|
| Storage Capacity | 22TB | 26TB |
| Form Factor | 3.5-inch | 3.5 in |
| Hardware Interface | SATA 6Gb/s | SATA 6Gb/s |
| Rotational Speed | 7200RPM | 7200 RPM |
| Cache Size | not stated | 512MB |
| Recording Technology | not stated | CMR |
| Weight | 1.85 pounds | not stated |
| Color | Silver | not stated |
| Model | ST22000NM000C | Exos ST26000NM000C |
Frequently asked questions
Does the Seagate Exos 22TB use helium sealing?
The Seagate Exos 22TB drive utilizes helium-sealed technology for improved durability and efficiency. This design helps reduce internal friction and heat generation during operation. It is a solid choice for users prioritizing rotational speed and helium-sealed durability over raw capacity. The drive fits data center environments better than smaller home drives.
What cache size does the Exos 26TB have?
The Seagate Exos 26TB CMR Hard Drive includes a 512MB cache. This larger buffer helps manage large data blocks efficiently. It supports sustained performance for high-capacity enterprise storage arrays. You get more raw space with this model compared to the 22TB version, making it ideal for users prioritizing capacity.
Is the Exos 26TB CMR or SMR?
The Seagate Exos 26TB uses CMR recording technology. This method provides consistent write speeds without the performance drops often seen in SMR drives. It is ideal for users building high-capacity enterprise storage arrays. The drive prioritizes raw capacity and sustained performance over compact size.
What interface do both drives use?
Both the Seagate Exos 22TB and Exos 26TB use the SATA hardware interface. This ensures broad compatibility with standard enterprise servers and storage enclosures. You do not need specialized adapters for connection. The SATA interface supports the 7200 RPM rotational speed found in both models.
Which drive is better for enterprise data centers?
The Seagate Exos 22TB is a solid choice for enterprise data centers needing 7200 RPM performance. It fits data center environments better than smaller home drives. Users prioritizing rotational speed and helium-sealed durability will find this model suitable. It delivers reliable performance for demanding enterprise workloads.
What is the weight of the Exos 22TB?
The Seagate Exos 22TB 7200 RPM SATA HDD weighs 1.85 pounds. This weight reflects its robust 3.5-inch form factor construction. The silver-colored casing houses the internal components designed for enterprise use. It is built to withstand the rigors of continuous operation in server racks.
Can I use these drives in home NAS?
Yes, you can use these drives in home NAS systems. Both are 3.5-inch form factor drives that fit standard bays. However, they are designed for enterprise environments. The Exos 26TB is ideal for users prioritizing raw capacity, while the 22TB offers helium-sealed durability. Ensure your NAS supports the SATA interface.