Intel® X18-M/X25-M SATA Solid State Drive
July 2008 Advance Product Manual
Order Number: 319765-002US 11
Intel® X18-M/X25-M SATA SSD

3.5.2 Mean Time Between Failure

The Mean Time Between Failure (MTBF) is calculated based on a Part Stress Analysis. It
assumes nominal voltage, with all other parameters within specified range.

3.5.3 Power On/Off Cycles

Defined as power being removed from the drive, and then restored. Most host systems
remove power from the drive when entering suspend and hibernate as well as on a
system shutdown.

3.5.4 Minimum Useful Life

A typical client usage of 20 GB writes per day is assumed. Should the host system
attempt to exceed 20 GB writes per day by a large margin for an extended period, the
drive will enable the endurance management feature to adjust write performance. By
efficiently managing performance, this feature enables the device to have, at a
minimum, a five year useful life. Under normal operation conditions, the drive will not
invoke this feature.
4.0 Mechanical Information

4.1 1.8” 5 mm Intel X18-M SATA SSD

The following figure shows the physical package information for the 5 mm deep 1.8”
Intel X18-M SATA SSD.