Performance
Measured performance can vary for a number of reasons. The major factors affecting
drive performance are the density of the drive and the interface of the host. Additional-
ly, overall system performance can affect the measured drive performance. When com-
paring drives, it is recommended that all system variables are the same, and only the
drive being tested varies.
Performance numbers will vary depending on the host system configuration.
Table 7: Drive Performance
Density 100GB 200GB 400GB Unit
Sequential read (64KB transfer) 380 380 380 MB/s
Sequential write (64KB transfer) 200 310 310 MB/s
Random read (4KB transfer) 52,000 54,000 60,000 IOPS
Random write (4KB transfer) 21,000 26,000 26,000 IOPS
READ latency (TYP) 0.57 0.51 0.51 ms
WRITE latency (TYP) 2 2 2 ms
Notes:
1. Typical I/O performance numbers as measured using Iometer with a queue depth of 32
and write cache disabled.
2. Iometer measurements are performed in the steady state region.
3. 4KB transfers used for READ/WRITE latency values.
4. System variations may affect measured results.
Reliability
Micron’s SSDs incorporate advanced technology for defect and error management.
They use various combinations of hardware-based error correction algorithms and
firmware-based static and dynamic wear-leveling algorithms.
Over the life of the SSD, uncorrectable errors may occur. An uncorrectable error is de-
fined as data that is reported as successfully programmed to the SSD but when it is read
out of the SSD, the data differs from what was programmed.
Table 8: Uncorrectable Bit Error Rate
Uncorrectable Bit Error Rate Operation
<1 sector per 10
16
bits READ
Mean Time to Failure
Mean time to failure (MTTF) for the SSD can be predicted based on the component reli-
ability data using the methods referenced in the Telcordia SR-332 reliability prediction
procedures for electronic equipment.
Table 9: MTTF
Density MTTF (Operating Hours)
1
100GB 2 million
P400m 2.5-Inch NAND Flash SSD
Performance
PDF: 09005aef84952553
p400m_2_5.pdf - Rev. H 11/13 EN
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