Can I split one RAID1 partition in two?

Posted by Prosys on Server Fault See other posts from Server Fault or by Prosys
Published on 2012-06-04T08:58:20Z Indexed on 2012/06/04 10:43 UTC
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Filed under:

linux

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raid

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partition

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md

I have a linux box with CentOS 6.2 and a RAID1 (2x 2Tb) configuration:

/dev/md1 -> / (10G)
/dev/md2 -> /home (1.9T)

I want to split the md2 in two different partitions, so I can get the following configuration:

/dev/md1 -> / (10G)
/dev/md2 -> /home (1T)
/dev/md3 -> /example (900G)

How can I achieve this? I already know that I can resize the partition, but that doesn't alter the real partition table (only the md device), so how can I do this?

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