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| Brand | Samsung |
|---|---|
| Model | 870 EVO |
| Capacity | 1 TB |
| Usage Class | Client / Consumer |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 3-bit TLC |
|---|---|
| Drive Writes Per Day | 0.33 |
| Total Bytes Written | 600 TBW |
| Sequential Read | 560 MB/s |
|---|---|
| Sequential Write | 530 MB/s |
| Random Read IOPS | 98000 |
| Random Write IOPS | 88000 |
| Average Latency | 45 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-75E2T0B/AM |
|---|
Compared with the previous-generation MZ-75E2T0B/AM, the Samsung 870 EVO 1TB (MZ-77E1T0E) pushes SATA performance closer to the interface ceiling at up to 560/530 MB/s and 98K/88K IOPS, delivering snappier mixed desktop and workstation responsiveness. Its Samsung V-NAND 3-bit TLC and 600 TBW endurance also make it a stronger long-life upgrade path for write-active client systems, content creation PCs, and always-on business desktops.
With an endurance rating of 600 TBW and 0.33 DWPD, the MZ-77E1T0E can comfortably handle typical client and light business workloads, such as OS boot, office applications, and everyday file storage, for many years. In practical terms, for a 1 TB system drive writing around 100–150 GB per day, this level of endurance supports roughly 10 years of use before reaching the rated write limit. For reliability, the specified UBER of 1.0E-15 means the drive is designed for a very low rate of uncorrectable bit errors, helping maintain data integrity during normal operation. This model does not include power-loss protection (PLP), so while it is a dependable choice for standard desktops and non-critical deployments, applications with frequent sudden power interruptions or write-critical enterprise workloads should use systems with backup power or a drive with PLP.
1. The SATA 6.0 Gbps interface, paired with 560 MB/s sequential read speed, lets this drive fully exploit legacy enterprise backplanes for fast boot, restore, and bulk data access without requiring a PCIe platform upgrade.
2. With 98,000 random read IOPS, it can sustain highly concurrent VM, database, and metadata-heavy workloads while keeping application response times consistent under mixed access patterns.
3. A 0.33 DWPD endurance rating makes it a practical fit for read-centric enterprise deployments such as content delivery, analytics serving, and virtual desktop environments where capacity efficiency matters more than heavy daily overwrite tolerance.
4. Samsung V-NAND 3-bit TLC provides a balanced mix of density, cost efficiency, and production maturity, helping enterprises scale flash storage economically for mainstream server workloads.
5. The 45 µs typical latency supports faster transaction turnaround and more predictable QoS, which is especially valuable for latency-sensitive applications such as indexing, caching, and online service platforms.
In the Samsung 870 EVO series, the next lower capacity below the 1 TB MZ-77E1T0E is 500 GB, and the next higher capacity is 2 TB. Since sequential read/write performance and random IOPS are broadly similar across these capacities, the 1 TB model stands out as the sweet spot. It offers much better headroom than 500 GB for OS images, application stacks, logs, and growth, while avoiding the higher upfront cost of 2 TB. This makes it a strong fit for small to mid-sized virtualization clusters, branch servers, or dense read-heavy business application nodes.
Q: Is MZ-77E1T0E suitable for a write-heavy database server?
A: Not ideal for write-heavy database workloads. With 0.33 DWPD, 600 TBW, TLC NAND, and no PLP, it is better suited for client, read-focused, or light mixed-use environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 0.33 DWPD, meaning about one-third of its 1 TB capacity can be written daily over the warranty period, equivalent to roughly 333 GB per day.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include PLP. PLP is critical in server or transactional environments because it helps prevent in-flight data loss and metadata corruption during unexpected power failures.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is generally recommended for this SSD when data protection and read performance matter. For write-heavy enterprise use, consider higher-endurance SSDs with PLP instead.