I also had success with raidreconfig and raid5, although I had a failure too. I was testing it to see if a strategy of adding disks as I needed them would work, and I discovered that it is *very* *very* touchy about the size of the partitions.
Where mdadm will just use the smallest partition as the limit for all units in the array, raidreconfig had an error related to partition sizes at the very end of its attempt to grow the array.
When I made the partition sizes the exact same block size it worked flawlessly, though slowly, in two separate tests, one going from 2x250GB to 3x250, and another going from 3x250 to 4x250.
I intend to use it to grow the array semi-indefintely, but I also have thorough, automatic backups so I may be more cavalier than people who care more about a specific instance of the data.
-Mike
Doug Ledford wrote:
On Mon, 2004-11-01 at 12:11 +1100, Neil Brown wrote:
There is a program called "raidreconfig" (I think) which can do this off-line. This is information only, not a recommendation as I have never used it or looked at it.
I've used it once. It worked, it grew my raid5 array for me. Took forever, but it worked.
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