... | ... | @@ -461,6 +461,24 @@ on teh `vg_ganeti_hdd` volume group, which is "slow" rotating disks: |
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gnt-instance modify --disk add:size=100g,vg=vg_ganeti_hdd test1.torproject.org
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gnt-instance reboot test1.torproject.org
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### Changing disk type
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If you have, say, a test instance that was created with a `plain` disk
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template but we actually want it in production, with a `drbd` disk
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template. Switching to `drbd` is easy:
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gnt-instance shutdown test-01
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gnt-instance modify -t drbd test-01
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gnt-instance start test-01
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The second command will use the allocator to find a secondary node. If
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that fails, you can assign a node manually with `-n`.
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You can also switch back to `plain`, although you should generally
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never do that.
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See also the [upstream procedure](https://docs.ganeti.org/docs/ganeti/3.0/html/admin.html#conversion-of-an-instance-s-disk-type) and [design document](https://docs.ganeti.org/docs/ganeti/3.0/html/design-disk-conversion.html).
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### Adding a network interface on the rfc1918 vlan
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We have a vlan that some VMs that do not have public addresses sit on.
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