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 0.5
ms
1,000 G (Max) at 0.5
ms
1,000 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
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