For reasons too complex to get into here, I'm using a 3-disk RAID1E on some linux systems. See here for more info on that.
So my understanding is that for optimizing filesystem layout on this volume, you use the following calculation:
chunk-size = 64kB block-size = 4kB stride = chunk / block = 16 stripe-width = stride * ( (numdisks)/2 ) = 16 * 1.5 = 24
However, mkfs.ext3 gives a warning when I use that calculation for setting the stripe-width, that it should be a power of two.
So my question is, am I doing it right? Should I be treating it like a standard four-disk RAID10, since the stripes are of the same size?
Update: it's not a degraded array, it's a fully supported configuration. Read the link from the first paragraph.