How to extend a volgroup and filesystem backed by LUKS-formatted encrypted physical volumes
Issue
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When installing Red Hat Enterprise Linux, we selected the Encrypt system checkbox. Now we need more space. How can we safely extend our filesystem(s), ensuring they are backed by encrypted storage?
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We have an LVM volume group backed by an encrypted LVM physical volume. What's the procedure to add new encrypted physical volumes to this volgroup (and to extend the logical volumes and the filesystems they contain)?
Environment
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 5
- LVM volume groups backed by LUKS-formatted encrypted PVs
(In contrast to encrypted LVM logical volumes)
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