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| Brand | Samsung |
|---|---|
| Model | 845DC EVO |
| Capacity | 240GB |
| Usage Class | Enterprise |
| Host Interface | SATA |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | TLC V-NAND |
|---|---|
| Drive Writes Per Day | 1.3 |
| Total Bytes Written | 600 TBW |
| Sequential Read | 530 MB/s |
|---|---|
| Sequential Write | 270 MB/s |
| Random Read IOPS | 87000 |
| Random Write IOPS | 12000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7TE240HMHP |
|---|
Compared with the MZ7TE240HMHP, the MZ7LM240HMHQ-00005 (845DC EVO) steps up to an enterprise TLC V-NAND design with endurance raised to 600 TBW and 1.3 DWPD, while sustaining 530/270 MB/s and 87,000/12,000 IOPS on a standard SATA interface. Its unique value in the 240GB class is pairing mainstream SATA compatibility with server-grade write durability, making it a stronger choice for boot, logging, and read-centric virtualization workloads that need predictable endurance without moving to SAS or NVMe.
With an endurance rating of 600 TBW and 1.3 DWPD, the MZ7LM240HMHQ-00005 is well suited for typical enterprise and workstation system-drive workloads, comfortably handling regular OS, application, logging, and moderate write-intensive use over its service life. In practical terms, for a boot or system disk scenario, this level of endurance can support many years of stable operation under normal business usage, giving buyers confidence that write wear is unlikely to be a concern. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and protects mapping tables during unexpected power interruptions, reducing the risk of corruption or data loss. Its UBER of 1.0E-17, together with a 2 million hour MTBF, reflects a high-integrity enterprise design with an extremely low unrecoverable bit error rate, supporting dependable operation in business-critical environments.
1. The SATA interface makes this drive an easy drop-in upgrade for existing enterprise servers and storage arrays, enabling reliable performance gains without changing backplanes, HBAs, or platform design.
2. Its 530 MB/s sequential read capability helps accelerate boot storms, large file retrieval, backup restores, and other throughput-driven tasks in virtualized and content-serving environments.
3. Up to 87,000 random read IOPS translates into faster response for metadata-heavy workloads such as OLTP databases, VDI, and high-concurrency web applications.
4. A 1.3 DWPD endurance rating gives IT teams the confidence to run sustained daily write activity over the service life of the drive, reducing replacement risk in mixed-use enterprise deployments.
5. TLC V-NAND paired with a typical 100 µs latency delivers a strong balance of flash density, cost efficiency, and consistently quick access times for latency-sensitive business applications.
Lower capacity reference: 120GB (Samsung PM863 series) Higher capacity reference: 480GB (Samsung PM863 series) In the PM863 family, the 240GB model sits at the practical sweet spot. Compared with the 120GB version, it gives noticeably more headroom for OS images, application binaries, logs, and short-term data growth, reducing the risk of early capacity pressure. Compared with the 480GB version, it usually delivers the best balance of acquisition cost, usable capacity, and the series’ broadly similar enterprise SATA performance profile. It is well suited for small-to-mid virtualization clusters, such as providing boot and utility storage for about 30 to 50 lightweight virtual machines.
Q: Is MZ7LM240HMHQ-00005 suitable for a write-heavy database server?
A: Yes, it can support moderately write-intensive database workloads. With 1.3 DWPD, 600 TBW, TLC V-NAND, and low 100 µs latency, it is suitable for enterprise SATA server environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1.3 drive writes per day, meaning the full 240GB capacity can be written about 1.3 times daily across its supported warranty endurance 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 sudden outages, which is critical for preventing corruption and maintaining storage consistency in servers.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is typically recommended for this SSD in business-critical systems, as these levels provide strong data protection, solid performance, and fast recovery after drive failure.