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| Brand | Samsung |
|---|---|
| Model | PM1655 |
| Capacity | 800 GB |
| Usage Class | Enterprise Mixed-Use |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND TLC |
|---|---|
| Drive Writes Per Day | 3 |
| Total Bytes Written | 4380 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 2000 MB/s |
| Random Read IOPS | 450000 |
| Random Write IOPS | 175000 |
| Average Latency | 95 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-ILT800 |
|---|
Compared with the previous-generation MZ-ILT800, the Samsung PM1655 (MZ-ILG8000) delivers a clear step up in the 800 GB 12Gb/s SAS class, reaching up to 2100/2000 MB/s and 450,000/175,000 IOPS for lower latency and stronger mixed-workload responsiveness. Its distinctive value is pairing Samsung V-NAND TLC with enterprise-grade 3 DWPD endurance and 4,380 TBW, making it a stronger choice than legacy SAS SSDs for write-intensive databases, virtualization clusters, and mission-critical server storage.
With an endurance rating of 4,380 TBW and 3 DWPD, the MZ-ILG8000 is built to handle sustained daily writes in demanding enterprise workloads without concern over premature wear. In practical terms, for typical OS, application, and general server storage usage, this level of endurance provides long-term peace of mind and is more than sufficient for many years of stable operation. The MZ-ILG8000 also includes enterprise-grade power loss protection, which helps prevent in-flight data from being lost or corrupted if power is interrupted unexpectedly. Combined with an ultra-low UBER of 1.0E-17 and a 2 million hour MTBF, it is designed to deliver very high data integrity and dependable service in mission-critical environments.
1. The SAS interface ensures seamless deployment in dual-port enterprise storage environments, enabling high availability and dependable interoperability in mission-critical server and array infrastructures.
2. Its strong sequential read performance accelerates large-block workloads such as backup recovery, media streaming, and analytics dataset ingestion, reducing time-to-data across shared storage systems.
3. The high random read capability sustains heavy transactional access patterns, making it well suited for virtualization, OLTP databases, and metadata-intensive enterprise applications with many concurrent users.
4. With enterprise-grade write endurance, this drive can handle sustained daily rewrite-intensive workloads like logging, caching, and mixed-use database operations without rapid wear-out concerns.
5. Samsung V-NAND TLC combined with low typical latency delivers a balanced mix of flash density, cost efficiency, and consistently fast response times for latency-sensitive business services.
Lower-capacity reference: 400 GB Higher-capacity reference: 1.6 TB Capacity positioning analysis: Within this enterprise SSD family, the 800 GB model sits at a practical sweet spot. Compared with the 400 GB version, it offers much better capacity headroom for OS images, application growth, log retention, and overprovisioning flexibility, reducing the risk of early space constraints. Compared with the 1.6 TB option, it typically delivers a more attractive cost-to-usable-capacity balance while keeping similar enterprise-class sequential and random I/O behavior. It is well suited for mid-sized virtualization clusters, such as shared boot and application storage for about 40 to 60 business workloads.
Q: Is MZ-ILG8000 suitable for a write-heavy database server?
A: Yes. The MZ-ILG8000 is suitable for write-heavy database workloads, thanks to its 3 DWPD endurance, 4380 TBW rating, SAS 12Gb/s interface, and low 95 µs typical latency.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 3 full drive writes per day. With 800 GB capacity, that equals about 2.4 TB of writes daily throughout the supported 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 metadata during unexpected outages, which is critical for preventing corruption and maintaining storage integrity.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is commonly recommended for this SSD in performance-sensitive and write-intensive environments, as it balances speed, redundancy, and rebuild reliability better than parity-based RAID levels.