Performance
Measured performance can vary for a number of reasons. The major factors affecting
drive performance are the capacity of the drive and the interface of the host. Addition-
ally, overall system performance can affect the measured drive performance. When
comparing 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.
For SSDs designed for the industrial market, Micron specifies performance in fresh-out-
of-box (FOB) state. Data throughput measured in "steady state" may be lower than FOB
state, depending on the nature of the data workload.
For a description of these performance states and of Micron's best practices for per-
formance measurement, refer to Micron's technical marketing brief "Best Practices for
SSD Performance Measurement"
(www.micron.com/products/solid-state-storage/).
Table 5: Drive Performance
Capacity 60GB 120GB 240GB 64GB 128GB 256GB
UnitInterface Speed 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s
Sequential read (128KB
transfer)
500 500 500 500 500 500 MB/s
Sequential write (128KB
transfer)
130 130 250 130 130 250 MB/s
Random read (4KB trans-
fer)
55,000 55,000 65,000 55,000 55,000 65,000 IOPS
Random write (4KB trans-
fer)
35,000 35,000 60,000 35,000 35,000 60,000 IOPS
READ latency (TYP) 160 160 160 160 160 160 µs
WRITE latency (TYP) 40 40 40 40 40 40 µs
Notes:
1. Performance numbers are maximum values, except as noted.
2. Typical I/O performance numbers as measured using Iometer with a queue depth of 32
and write cache enabled. Fresh-out-of-box (FOB) state is assumed. For performance
measurement purposes, the SSD may be restored to FOB state using the SECURE ERASE
command.
3. Iometer measurements are performed on an 20GB span of logical block addresses
(LBAs).
4. 4KB transfers with a queue depth of 1 are used to measure READ/WRITE latency values
with write cache enabled.
M500IT mSATA NAND Flash SSD
Performance
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m500it_mSATA_industrial_ssd.pdf - Rev. E 6/16 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2015 Micron Technology, Inc. All rights reserved.
