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| Brand | Intel |
|---|---|
| Model | 320 Series (Postville Refresh) |
| Capacity | 300 GB |
| Usage Class | Enterprise/Value |
| Host Interface | SATA 3Gb/s |
|---|---|
| Total Interface Bandwidth | 3 Gb/s |
| Form Factor | 2.5 inch 7mm |
|---|
| NAND Flash | 25nm MLC |
|---|---|
| Drive Writes Per Day | 0.3 |
| Total Bytes Written | 36 TBW |
| Sequential Read | 270 MB/s |
|---|---|
| Sequential Write | 205 MB/s |
| Random Read IOPS | 39500 |
| Random Write IOPS | 23000 |
| Average Latency | 75 μs |
| Mean Time Between Failures | 1.2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | SSDSA2BW300G3 |
|---|
SSDSA2BW300G3H, the 320 Series Postville Refresh, stands out as a 300 GB SATA 3Gb/s SSD that pairs Intel’s 25nm MLC NAND with 39,500/23,000 IOPS and 270/205 MB/s performance, making it a strong fit for read-centric boot, cache, and branch-server deployments that need predictable latency within a 0.3 DWPD profile. Compared with the earlier SSDSA2BW300G3, this refresh delivers the value of a more mature Postville platform with updated 25nm integration and firmware refinement, giving engineers better deployment confidence and steadier real-world consistency in the same capacity class.
With an endurance rating of 36 TBW, the SSDSA2BW300G3H can handle about 36,000 GB of total writes over its service life, which is more than enough for a typical OS or boot-drive workload. In practical terms, if the drive writes around 10 GB per day, it can operate for nearly 10 years, making it a dependable choice for system disks and other light to moderate daily-use applications. Its power-loss protection (PLP) helps preserve in-flight data and critical mapping information during an unexpected power outage, reducing the risk of corruption and improving system stability. An UBER of 1.0E-16 means the drive is designed for very high data integrity, with no more than one unrecoverable bit error in 10^16 bits read, further supported by a 1.2 million-hour MTBF for long-term reliability confidence.
1. The SATA interface makes this drive a practical drop-in upgrade for legacy enterprise servers and storage arrays, improving responsiveness without requiring a platform overhaul.
2. Its sequential read performance helps accelerate OS boot, database snapshot loading, and large-file retrieval in read-focused enterprise environments.
3. The strong random read capability supports higher VM density and faster response for metadata-heavy workloads such as web hosting, indexing, and OLTP query access.
4. Its light write endurance profile is best suited to read-centric deployments like boot drives, reference datasets, and content distribution tiers where write pressure remains modest.
5. Built on mature MLC NAND with low typical latency, the drive delivers more consistent access times and dependable service behavior for business-critical applications than consumer-grade flash.
Lower capacity reference: 160 GB (SSDSA2BW160G3H) Higher capacity reference: 600 GB (SSDSA2BW600G3H) Capacity positioning analysis: Within this series, the 300 GB model sits at the practical sweet spot. Compared with the 160 GB version, it gives substantially more headroom for OS images, application stacks, logs, and overprovisioning, reducing the risk of early capacity pressure. Compared with the 600 GB model, it typically delivers the same enterprise-class SATA performance profile while keeping acquisition cost and cost-per-node better controlled. This makes 300 GB a balanced choice for mid-scale deployments, such as boot and application storage for about 30 to 50 virtualization hosts or a compact business database cluster.
Q: Is SSDSA2BW300G3H suitable for a write-heavy database server?
A: Not ideally. With 0.3 DWPD and 36 TBW, this 300 GB SATA SSD is better for read-focused or mixed workloads than sustained write-heavy database server applications.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 0.3 drive writes per day, meaning about 90 GB of writes daily on a 300 GB drive across its warranty period.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP helps preserve in-flight data and mapping tables during sudden outages, reducing corruption risk and improving data integrity in enterprise environments.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is generally recommended for this SSD, depending on capacity and performance needs. These levels provide redundancy and better protection for business-critical data.