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M.2 is a solid-state drive (SSD) form factor primarily used as an operating system boot solution however depending on the endurance of the M.2 drives, they may also be suitable for read-intensive or mixed workloads. Lenovo ThinkSystem servers support M.2 drives in one of three ways, depending on the server selected: - One or two drives, mounted in an M.2 adapter, vertically in a dedicated slot - Two or four drives, mounted horizontally in an M.2 adapter - Installed directly on the system board One example is the Dual M.2 Adapter, as shown in the following figure, with one 128GB M.2 drive partially inserted. The second M.2 drive is installed on the other side of the adapter.
Hard drive | |
---|---|
SSD capacity | 240 GB |
Data transmission | |
Read speed | 540 MB/s |
Write speed | 310 MB/s |
Random write (4KB) | 40000 IOPS |
Random read (4KB) | 67000 IOPS |
Write latency | 500 µs |
Read latency | 500 µs |
Performance | |
Interface | Serial ATA III |
Component for | Server/workstation |
NVMe | No |
TBW rating | 657 |
SSD capacity | 240 GB |
Read speed | 540 MB/s |
Write speed | 310 MB/s |
Random write (4KB) | 40000 IOPS |
Random read (4KB) | 67000 IOPS |
Write latency | 500 µs |
Read latency | 500 µs |
Design | |
Component for | Server/workstation |
SSD form factor | M.2 |
Features | |
Interface | Serial ATA III |
Component for | Server/workstation |
NVMe | No |
TBW rating | 657 |
SSD capacity | 240 GB |
Read speed | 540 MB/s |
Write speed | 310 MB/s |
Random write (4KB) | 40000 IOPS |
Random read (4KB) | 67000 IOPS |
Write latency | 500 µs |
Read latency | 500 µs |
SSD form factor | M.2 |
Harmonized System (HS) code | 84717070 |
Technical details | |
Interface | Serial ATA III |
SSD form factor | M.2 |
Weight & dimensions | |
Weight | 10 g |
Logistics data | |
Harmonized System (HS) code | 84717070 |