[Nottingham] re: FLASH vs HDD (Martin)

[Camilo Mesias]

I think the journalling problem is mainly that it increases the writes
to the device for any given file operations, thus wearing out the
flash more quickly.

You should aim to reduce writes to flash devices if possible, and make
large contiguous writes rather than small dispersed ones.

We tested ext2 vs ext3 at work and found that iostat reported four
times as many writes for operations on a journalled FS.

-Cam