On Mon, 20 Aug 2007, Dat Chu wrote:
I am trying to find the mdadm version that support Linear RAID hot
grow. Does anyone have a link to point me to? I am currently running
2.6.2.
With warm regards,
Dat Chu
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Not sure, it seems like it would be supported by now?
But according to the docs for 2.6.2:
Grow Grow (or shrink) an array, or otherwise reshape it in some way.
Currently supported growth options including changing the active
size of component devices in RAID level 1/4/5/6 and changing the
number of active devices in RAID1/5/6.
--
http://neil.brown.name/blog/SoftRaid
--grow option for "linear" md arrays
I've just been working on an enhancement for Linux "MD" linear arrays
which allows them to be enlanged.
More specifically, a new device (typcially disk drive) can be added to the
end of an active linear array now. The size increases accordingly.
You can find patches for mdadm and 2.6.7-rc3-mm1.
It is still a work in progress, as it isn't documented, some of the code
doesn't report errors very nicely, and I realised that there is some work
needed in md.c with respect to handling new superblocks.
I really should do the new-superblock code in mdadm and get it all tidied
up.
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