On Monday 21 March 2011 19:03:09 Andreas Dilger wrote:
> Note that mballoc was specifically designed to handle allocation
> requests that are aligned on RAID stripe boundaries, so it should
> be able to handle this for MMC as well. What is needed is to tell
> the filesystem what the underlying alignment is. That can be done
> at format time with mke2fs or afterward with tune2fs by using the
> "-E stripe_width" option.
Ah, that sounds useful. So would I set the stripe_width to the
erase block size, and the block group size to a multiple of that?
Does this also work in (rare) cases where the erase block size is
not a power of two?
Arnd
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