Choosing a Linux Flash File System - Micron

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Considerations for a Block Based File System with FTL + MTD � MTD driver � Confirm the MTD driver is available for your target Flash memory device, OS version, and platform � MTD startup time � Confirm the startup time of the MTD driver and the file system startup time meet the project specification � MTD driver RAM requirement � Confirm the code and data size of the MTD driver plus the file system and FTL RAM requirements meet the project specification | ©2011 Micron Technology, Inc. | 20
Considerations for a Block Based File System FTL+MTD – 8GB MLC Flash Example Attributes EXT3 VFAT File system Capacity 2TB-16TB 2TB File size 16GB to 2TB 4GB Startup time Implementation dependent Implementation dependent Power loss restart Yes No Power loss data protection Yes No RAM requirement Implementation dependent Implementation dependent Delete sector feature No Yes Write amplification Implementation dependent Implementation dependent Support sector size 512 byte to 4KB 512 byte to 4KB USB mass storage compatibility No Yes Sequential read performance Implementation dependent Implementation dependent Sequential write performance Implementation dependent Implementation dependent Random read performance Implementation dependent Implementation dependent Random write performance Implementation dependent Implementation dependent | ©2011 Micron Technology, Inc. | 21
Page 1 and 2: Choosing a Linux Flash File System
Page 3 and 4: Linux File System For Flash Devices
Page 5 and 6: NAND and NOR Flash Memory Devices
Page 7 and 8: Linux Flash Based File System Class
Page 9 and 10: Considerations for a Flash Based Fi
Page 15 and 16: Linux Block Based File System + MTD
Page 17 and 18: Considerations for a Block Based Fi
Page 19: Considerations for a Block Based Fi

Choosing a Linux Flash File System - Micron

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