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| Brand | Samsung |
|---|---|
| Model | PM1653 |
| Capacity | 7.68 TB |
| Usage Class | Read Intensive |
| Host Interface | SAS 24Gb/s |
|---|---|
| Total Interface Bandwidth | 24 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 128-layer 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 14016 TBW |
| Sequential Read | 4300 MB/s |
|---|---|
| Sequential Write | 4100 MB/s |
| Random Read IOPS | 800000 |
| Random Write IOPS | 135000 |
| Average Latency | 90 μs |
| Mean Time Between Failures | 2.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILT7T6HALA |
|---|
The Samsung PM1653 7.68TB (MZILG7T6HBLAAD3) is a strong upgrade from MZILT7T6HALA, moving to SAS 24Gb/s to double host interface bandwidth while delivering up to 4300/4100 MB/s and 800K/135K IOPS for faster response in latency-sensitive enterprise storage arrays. With 128-layer V-NAND TLC, 1 DWPD endurance, and 14,016 TBW, it offers higher throughput density and better sustained mixed-workload performance than the prior generation, making it an excellent fit for mission-critical database, virtualization, and tier-1 server environments.
With an endurance rating of 14,016 TBW and 1 DWPD, the MZILG7T6HBLAAD3 is designed to handle writing its full capacity every day across a standard enterprise service life, which indicates very strong write durability for mixed and read-intensive server workloads. In typical real-world use such as OS boot, virtualization, application serving, or general data center system-disk duty, this level of endurance provides ample margin and can support many years of stable operation without endurance concerns. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption and improving system recovery confidence. Its UBER of 1.0E-17 reflects an enterprise-grade unrecoverable bit error rate, meaning an extremely low probability of data read errors, while the 2.5 million-hour MTBF further supports dependable long-term deployment.
1. The SAS 24Gb/s interface brings dual-port, enterprise-grade connectivity that strengthens high-availability storage designs and keeps mission-critical servers online during path failover.
2. Its strong sequential read performance speeds up backup restores, data warehouse scans, and large file streaming, helping reduce waiting time in data-intensive enterprise workflows.
3. The high random read capability enables dense virtualization, OLTP databases, and read-heavy cloud workloads to maintain fast response under heavy concurrent access.
4. With a 1 DWPD endurance profile, the drive is well suited for mixed-use enterprise environments that require predictable daily rewrites without stepping up to a higher-cost write-optimized tier.
5. Samsung 128-layer 3D TLC V-NAND, combined with very low typical latency, delivers a balance of flash density, power-efficient performance, and consistent QoS for latency-sensitive business applications.
The closest lower-capacity option in the same enterprise SSD family is 3.84 TB, and the next higher-capacity option is 15.36 TB. At 7.68 TB, this SSD sits at the sweet spot of the lineup. Compared with the 3.84 TB version, it gives much better space headroom for dataset growth, VM density, and overprovisioning flexibility without changing the expected enterprise-class sequential throughput or random IOPS profile. Compared with the 15.36 TB model, it keeps acquisition cost, power, and replacement budget under tighter control while still delivering strong usable capacity. It is especially well suited for mid-scale virtualization clusters, mixed OLTP workloads, or compact all-flash nodes hosting around 40 to 60 business applications.
Q: Is MZILG7T6HBLAAD3 suitable for a write-heavy database server?
A: It can support mixed-use or moderate write database workloads, but with 1 DWPD, it is not the best choice for highly write-heavy database servers that require higher endurance.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1 DWPD, meaning it can sustain one full 7.68 TB drive write per day over its warranty period, aligned with the 14,016 TBW endurance rating.
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 power failure, which is critical for transactional systems, databases, and enterprise storage reliability.
Q: What RAID level is recommended for this SSD?
A: For enterprise deployments, RAID 10 is typically recommended when performance and redundancy are priorities. If usable capacity matters more than write performance, RAID 5 or RAID 6 may also be considered.