Choosing a Linux Flash File System - Micron

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Consideration for a Block Based File System FTL+MTD 8GB MLC flash device example Attributes EXT3 VFAT FTL Capacity 64GB 64GB Startup time Implementation dependent Implementation dependent Power loss restart Yes Yes Power loss data protection Yes Yes RAM requirement 4MB per 8GB 4MB per 8GB Delete sector feature Yes Yes Write amplification 1 to 2 1 to 2 Bad block management Yes 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. | 22
Considerations for a Block Based File System FTL+MTD – 8GB MLC Flash Example Attributes EXT3 VFAT MTD Driver available for device Implementation dependent Implementation dependent Driver available for OS and platform Implementation dependent Implementation dependent Start up time Implementation dependent Implementation dependent RAM requirement Implementation dependent Implementation dependent Total File system + FTL + MTD startup time Implementation dependent Implementation dependent File system + FTL + MTD RAM requirement Implementation dependent Implementation dependent | ©2011 Micron Technology, Inc. | 23
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 21: Considerations for a Block Based Fi

Choosing a Linux Flash File System - Micron

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