Lenovo Thinksystem 2.5" 5100 480gb Mainstream Sata 6gb Hot Swap Ssd 7sd7a05764
Introduction
The 5100 Enterprise Mainstream SATA solid-state drives (SSDs) use Micron NAND flash memory technology with a SATA 6Gbps interface. They provide an affordable solution for mixed read/write applications such as excellent choice as cache in transactional application and high-speed storage for enterprise databases.
The 5100 Enterprise Mainstream SATA SSD is shown in the following figure.
Figure 1. 5100 Enterprise Mainstream SATA SSD
Did you know?
The 5100 Series of SATA SSDs is available from Lenovo in two levels of endurance. The Enterprise Mainstream SSDs covered in this product guide offer drive write endurance of between 2.5 and 5.0 total drive writes per day (DWPD) whereas the Enterprise Entry SSDs covered in LP0633 are more for read-intensive workloads and offer write endurance of under 1.0 DWPD.
Rigorous testing of the 5100 Series SSDs by Lenovo through the ServerProven program assures a high degree of storage subsystem compatibility and reliability. Providing additional peace of mind, these drives are covered under Lenovo warranty.
Features
The 5100 Enterprise Mainstream SATA SSDs have the following features:
- Industry standard 2.5-inch or 3.5-inch form factors
- Innovative triple-level cell (TLC) 3D NAND technology
- Suitable for mixed read/write workloads with an endurance of between 2.5 and 5 drive writes per day (DWPD) for 5 years
- 6 Gbps SATA host interface
- High reliability and enhanced ruggedness
- Absence of moving parts to reduce potential failure points in the server
- S.M.A.R.T. support
- Advanced Encrypting Standard (AES) 256-bit encryption
SSDs have a huge but finite number of program/erase (P/E) cycles, which affect how long they can perform write operations and thus their life expectancy. Enterprise Mainstream SSDs typically have a better cost per read IOPS ratio but lower endurance and performance compared to Enterprise Performance SSDs. SSD write endurance is typically measured by the number of program/erase cycles that the drive can incur over its lifetime, which is listed as total bytes written (TBW) in the device specification.
The TBW value that is assigned to a solid-state device is the total bytes of written data that a drive can be guaranteed to complete. Reaching this limit does not cause the drive to immediately fail; the TBW simply denotes the maximum number of writes that can be guaranteed. A solid-state device does not fail upon reaching the specified TBW. However, at some point after surpassing the TBW value (and based on manufacturing variance margins), the drive reaches the end-of-life point, at which time the drive goes into read-only mode. Because of such behavior, careful planning must be done to use SSDs in the application environments to ensure that the TBW of the drive is not exceeded before the required life expectancy.
For example, the 5100 1.92TB Enterprise Mainstream SATA SSD has an endurance of 8,800 TB of total bytes written (TBW). This means that for full operation over five years, write workload must be limited to no more than 4,822 GB of writes per day, which is equivalent to 2.5 full drive writes per day (DWPD). For the device to last three years, the drive write workload must be limited to no more than 8,037 GB of writes per day, which is equivalent to 4.2 full drive writes per day.
Feature | 240 GB drive | 480 GB drive | 960 GB drive | 1.92 TB drive | 3.84 TB drive |
---|---|---|---|---|---|
Interface | 6 Gbps SATA | 6 Gbps SATA | 6 Gbps SATA | 6 Gbps SATA | 6 Gbps SATA |
Capacity | 240 GB | 480 GB | 960 GB | 1.92 TB | 3.84 TB |
Endurance (drive writes per day) | 3.4 DWPD | 5.0 DWPD | 2.5 DWPD | 2.5 DWPD | 2.5 DWPD |
Endurance (total bytes written) | 1500 TB | 4400 TB | 4400 TB | 8800 TB | 17,600 TB |
Data reliability | < 1 in 1017 bits read | < 1 in 1017 bits read | < 1 in 1017 bits read | < 1 in 1017 bits read | < 1 in 1017 bits read |
MTBF | 2,000,000 hours | 2,000,000 hours | 2,000,000 hours | 2,000,000 hours | 2,000,000 hours |
IOPS reads (4 KB blocks) | 78,000 | 93,000 | 93,000 | 93,000 | 93,000 |
IOPS writes (4 KB blocks) | 26,000 | 74,000 | 37,000 | 37,000 | 30,000 |
Sequential read rate (128 KB blocks) | 540 MBps | 540 MBps | 540 MBps | 540 MBps | 540 MBps |
Sequential write rate (128 KB blocks) | 250 MBps | 460 MBps | 520 MBps | 520 MBps | 520 MBps |
Read latency (seq) | 500 µs | 500 µs | 500 µs | 500 µs | 500 µs |
Write latency (seq) | 500 µs | 500 µs | 500 µs | 500 µs | 500 µs |
Shock, non-operating | 1,500 G (Max) at 0.5 ms | 1,500 G (Max) at 0.5 ms | 1,500 G (Max) at 0.5 ms | 1,500 G (Max) at 0.5 ms | 1,500 G (Max) at 0.5 ms |
Vibration, non-operating | 3.13 GRMS (5-800 Hz) | 3.13 GRMS (5-800 Hz) | 3.13 GRMS (5-800 Hz) | 3.13 GRMS (5-800 Hz) | 3.13 GRMS (5-800 Hz) |
Typical power | 4.5 W | 4.5 W | 5 W | 5.5 W | 6 W |