On Thu, May 21, 2009 at 4:48 AM, Neil Brown [off-list ref] wrote:

On Tuesday May 19, dan.j.williams@intel.com wrote:

quoted

On Sat, May 2, 2009 at 2:46 PM, raz ben yehuda [off-list ref] wrote:

 - Surely RAID0 is (like LVM) just a legacy idea until we get sensible
  file systems that actually understand multiple devices and do all
  this stuff for you are a more sensible level - so why are we
  busting a gut(*) to make RAID0 work well??  Answer is of course
  that no-one has made a sensible file system yet. (well... maybe zfs
  or btrfs, not sure)

"Compatibility" is another cause of the abdominal pressure.  See the
single drive to raid0 migrations supported by the Windows driver:
http://www.intel.com/support/chipsets/imsm/sb/cs-020674.htm

So: lots of thoughts, some pointing in different directions.
But I'm not against reshape code appearing in RAID0 providing it is
well designed, maintainable, reliable, and doesn't slow down normal
RAID0 processing.  I suspect we can get there.

Nod.

Thanks,
Dan
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