Lenovo 7SD7A05779, 7SD7A05777, Intel P4500 Entry, 7SD7A05773, 4XB7A08539 Product Manual

Intel P4500 Entry NVMe PCIe 3.0 x4 SSDs

Product Guide

The Intel P4500 Entry NVMe SSDs are general-purpose yet high-performance drives with a PCIe 3.0 x4
interface. They are designed for greater performance and endurance in a cost-effective design, and to
support a broader set of workloads.

The Intel P4500 SSDs are based on Intel-developed controller, firmware, and leading manufacturing
process NAND flash memory. Rigorous qualification and compatibility testing by Lenovo ensures a highly
reliable SSD.

Figure 1. Intel P4500 Entry NVMe PCIe 3.0 x4 SSDs

Did You Know?

NVMe (Non-Volatile Memory Express) is a technology that overcomes SAS/SATA SSD performance
limitations by optimizing hardware and software to take full advantage of flash technology. Intel Xeon
processors efficiently transfer data in fewer clock cycles with the NVMe optimized software stack
compared to the legacy Advance Host Controller Interface (AHCI) stack, thereby reducing latency and
overhead. These SSDs connect directly to the processor via the PCIe bus, further reducing latency and
TCO.

Intel P4500 Entry NVMe PCIe 3.0 x4 SSDs 1

Part number information

The following table lists the ordering part numbers and feature codes for the SSDs.

Table 1. Ordering information

Part number Feature Description

Drives for ThinkSystem servers

7SD7A05779 B11C ThinkSystem U.2 Intel P4500 1.0TB Entry NVMe PCIe3.0 x4 Hot Swap SSD

7SD7A05778 B11D ThinkSystem U.2 Intel P4500 2.0TB Entry NVMe PCIe3.0 x4 Hot Swap SSD

7SD7A05777 B11E ThinkSystem U.2 Intel P4500 4.0TB Entry NVMe PCIe3.0 x4 Hot Swap SSD

Drives for System x, Flex System and NeXtSale servers

7SD7A05774 B11F Intel P4500 1.0TB NVMe 2.5" Enterprise Entry PCIe SSD

7SD7A05773 B11G Intel P4500 2.0TB NVMe 2.5" Enterprise Entry PCIe SSD

4XB7A08539 B1JK Intel P4500 4.0TB NVMe 2.5" Enterprise Entry PCIe SSD

The part numbers for the drives include the following items:

One drive with a hot-swap tray attached

Publication package

Features

Non-Volatile Memory Express (NVMe) is new PCIe 3.0 high performance SSD technology that provides
high I/O throughput and low latency. NVMe interfaces remove SAS/SATA bottlenecks and unleash all of
the capabilities of contemporary NAND flash memory. Each NVMe PCI SSD has direct PCIe 3.0 x4
connection, which provides at least 2x more bandwidth and 2x less latency than SATA/SAS-based SSD
solutions. NVMe drives are also optimized for heavy multi-threaded workloads by using internal parallelism
and many other improvements, such as enlarged I/O queues.

The Intel P4500 NVMe drives have the following key characteristics:

PCIe 3.0 connection for each NVMe drive

Ultra-low I/O latency, with an typical read latency of 10 µs and write latency of 13 µs

Suitable for read-intensive workloads

Available in capacities up to 4 TB

Variable sector size and end-to-end data-path protection

Enhanced power-loss data protection

Thermal throttling and monitoring

SMART health reporting

The key metric for solid state drives is their endurance (life expectancy). SSDs have a huge, but finite,
number of program/erase (P/E) cycles, which determines how long the drives can perform write operations
and thus their life expectancy. Performance SSDs have better endurance than Mainstream SSDs, which in
turn have better endurance than Entry 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 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.

Intel P4500 Entry NVMe PCIe 3.0 x4 SSDs 2

A solid-state device does not fail upon reaching the specified TBW, but 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 1.0 TB P4500 drive has an endurance of 1,380 TB of total bytes written (TBW). This
means that for full operation over five years, write workload must be limited to no more than 756 GB of
writes per day, which is equivalent to 0.75 full drive writes per day (DWPD). For the device to last three
years, the drive write workload must be limited to no more than 1,260 GB of writes per day, which is
equivalent to 1.3 full drive writes per day.

Technical specifications

The following table present technical specifications for the Intel P4500 drives.

Table 2. Technical specifications

Feature 1.0 TB drive 2.0 TB drive 4.0 TB drive

Form factor 2.5-inch hot-swap 2.5-inch hot-swap 2.5-inch hot-swap

Interface PCIe 3.0 x4 PCIe 3.0 x4 PCIe 3.0 x4

Capacity 1.0 TB 2.0 TB 4.0 TB

Endurance
(total bytes written)

1.38 PB 1.89 PB 4.84 PB

Endurance (drive writes
per day over 5 years)

0.75 DWPD 0.5 DWPD 0.65 DWPD

Data reliability < 1 in 10 bits read < 1 in 10 bits read < 1 in 10 bits read

MTBF, hours 2,000,000 2,000,000 2,000,000

IOPS read (4 KB blocks) 279,500 490,000 645,000

IOPS write (4 KB blocks) 30,500 38,000 62,500

Sequential read rate 3.2 GBps 3.2 GBps 3.2 GBps

Sequential write rate 0.6 GBps 1.05 GBps 1.8 GBps

Read access latency sequential* 10 µs 10 µs 10 µs

Read access latency random* 85 µs 85 µs 115 µs

Write access latency sequential* 13 µs 13 µs 13 µs

Write access latency random* 20 µs 20 µs 20 µs

Shock, operating 1,000 G (Max) at 0.5ms1,000 G (Max) at 0.5ms1,000 G (Max) at 0.5

ms

Vibration, max, operating 2.17 G (5-700 Hz) 2.17 GRMS (5-700 Hz) 2.17 GRMS (5-700 Hz)

Average power (Active Read / Active
Write)

9.6 / 11 W 9.5 / 13.8 W 10.7 / 20.5 W

* Latency measured using 4 KB transfer size with queue depth = 1 on a sequential workload using
Windows Server 2012 R2 drivers. Power mode set at 25W.

17 17 17

RMS

Intel P4500 Entry NVMe PCIe 3.0 x4 SSDs 3