On 04/20/10 04:13 PM, Sunil wrote:
Hi,
I have a strange requirement. My pool consists of 2 500GB disks in stripe which
I am trying to convert into a RAIDZ setup without data loss but I have only two
additional disks: 750GB and 1TB. So, here is what I thought:
1. Carve a 500GB slice (A) in 750GB and 2 500GB slices (B,C) in 1TB.
2. Create a RAIDZ pool out of these 3 slices. Performance will be bad because
of seeks in the same disk for B and C but its just temporary.
If the 1TB drive fails, you're buggered. So there's not a lot of point
setting up a raidz.
You may as well create a pool on the 1TB drive and copy to that.
3. zfs send | recv my current pool data into the new pool.
4. Destroy the current pool.
5. In the new pool, replace B with the 500GB disk freed by the destruction of
the current pool.
6. Optionally, replace C with second 500GB to free up the 750GB completely.
Or use the two 500GB and the 750 GB drive for the raidz.
--
Ian.
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