Stephen Johnson wrote: >I find that people tend to underestimate how much actual data would be >required to wear out flash. I did a calculation back when I was more >involved with the handhelds.org project(s). Major thing at the time was >porting the kernel and setting up a distribution for the Compaq IPAQ and >other PDA. The first Ipaq has 16 MB of flash. Assuming a modest amount >of re-writes for Flash of that era. One would have to write 1.6 TB of >data to wear out the flash. And using something like JFFS2 on the flash, >the effect amount of written data is easily double that.
Please redo your calculations using a reasonable multiplier effect. When I write one byte to flash, the filesystem reads an entire block into RAM, modifies that byte (16 KB in many cases), and then writes back the entire block. This results in much more actual writing than the logic intended. -- Dave Close, Compata, Irvine CA "You ain't goin' nowhere, son." [email protected], +1 714 434 7359 -- Grand Ole Opry manager to [email protected] Elvis Presley, 1954 _______________________________________________ Discuss mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/discuss This list provided by the League of Professional System Administrators http://lopsa.org/
