M-Systems Flash Disk Pioneers IDE 4000 Endurance, Mean Time Between Failures MTBF, 1.2.11.1Weight

1.2.9.Endurance

The IDE 4000 provides 2,000,000 write/erase cycles and an unlimited number of read cycles. Performance is enhanced by the following features:

•Wear-Leveling Algorithm: This algorithm guarantees the use of all flash components at the same level of the write/erase cycle.

•EDC/ECC (Error Detection Code/Error Correction): The enhanced Reed-Solomon EDC/ECC extends disk endurance by detecting and then fixing flash blocks.

1.2.10.Mean Time Between Failures (MTBF)

Table 6 summarizes the MTBF prediction results for various IDE 4000 configurations. The analysis was performed using a RAM Commander™ failure rate prediction.

Table 6: IDE 4000 MTBF

Product		Condition	MTBF (Hours)	Failure Rate per
				Million Hours
IDE 4000	1GB	Telcordia SR-332, GB, 25°C	2,893,495	0.3456
IDE 4000	2GB	Telcordia SR-332, GB, 25°C	2,188,066	0.4570
IDE 4000	3GB	Telcordia SR-332, GB, 25°C	1,759,180	0.5684
IDE 4000	4 to 8GB	Telcordia SR-332, GB, 25°C	1,470,874	0.6799

A detailed MTBF report can be furnished upon request.

1.2.11.Physical Characteristics

1.2.11.1Weight

The weight of the IDE 4000 complies with the values defined in Table 7.

Table 7: IDE 4000 Maximum Weight

Memory Capacity (MB)	2.5” Unit Weight (g)	1.8” Unit Weight (g)
8192	90	30

1.2.11.2 Dimensions

Table 8 describes the nominal dimensions of the IDE 4000. Refer to Figure 2 for detailed mounting configuration dimensions.

Table 8: Nominal Dimensions

	Dimensions		IDE 4000 2.5”		IDE 4000 1.8”
	Height		0.291 in	7.40 mm	0.339 in	8.6 mm
	Width		2.750 in	69.85 mm	2.008 in	51.0 mm
	Depth		3.945 in	100.20 mm	3.004 in	76.3 mm
8		Product Specification and User Manual IDE 4000 Flash Disk				34-PS-0304-00 Rev. 2.1