[CentOS] raid 1 disks upgrade

[James Bensley]

Just my two pence;

So just to confirm do you have 3 physical raid 1 arrays you want to
merge into 1? Or are these 3 partitions on a single physical raid
1array;

If its the later I find the easiest way (providing your hardware
supports this) is to set one drive as off line (so you are now in
running in a degraded raid mode) and replace that 250 with a 1TB
drive, then change the mode to online again and it will rebuild the
raid on the 1TB drive from the remaining 250GB drive. Now take the
remaining 250GB disk off line so you are running from the 1TB disk,
replace the 250GB drive with the other 1TB disk and rebuild onto that
one and now you have 2x1TB disks in raid 1?

James ;)

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