Re: [PATCH 000 of 5] md: Introduction

[Michael Tokarev]

NeilBrown wrote:
> Greetings.
> 
> In line with the principle of "release early", following are 5 patches
> against md in 2.6.latest which implement reshaping of a raid5 array.
> By this I mean adding 1 or more drives to the array and then re-laying
> out all of the data.

Neil, is this online resizing/reshaping really needed?  I understand
all those words means alot for marketing persons - zero downtime,
online resizing etc, but it is much safer and easier to do that stuff
'offline', on an inactive array, like raidreconf does - safer, easier,
faster, and one have more possibilities for more complex changes.  It
isn't like you want to add/remove drives to/from your arrays every day...
Alot of good hw raid cards are unable to perform such reshaping too.

/mjt
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