On Sat, April 14, 2012 11:38 pm, Bob wrote: > ... > # to help you spot where you are in the output 134217728 = 128MB & > 524288 = 512k; so as the difference halves from ~100µs or more to 55µs > at 4194304 = 4MB if I'm reading the README correctly this would imply > that the erase block size on this card is 8MB > > One thing I don't understand is, if that is the case, how come the > original partition started at 4MB > 8192 * 512 = 4194304
Certainly odd. No insights to offer. > Irrespective I now start the partition for this SD card at 16384 that > way, it's allied on a 4MB & an 8MB boundary, ... I'm using that idea as a temporary arrangement on a CF. > ... I haven't yet figured out > what open AUs are and what to do with them, I got slightly disheartened > when on my OCZ SSD drive it didn't seem to make any difference to speed > where I started the partition, I need to try again with a CF or SD card, > maybe it was a buffering thing. How about AU = allocation unit? No clear idea of how this relates to the HDD sector or the Flash page. > That's where I've got so far, not sure I've helped you but my note are > now a little more ordered. > > Let us know how you get on This also helped. http://wiki.laptop.org/go/How_to_Damage_a_FLASH_Storage_Device Will aim to work on it again in late May or in June. Thanks for the notes, ... Peter E. -- Telephone 1 360 639 0202. Bcc: peter at easthope.ca "http://carnot.yi.org/ " "http://members.shaw.ca/peasthope/index.html#Itinerary " -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
