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If your instance uses an ephemeral disk, it's normally created under /var/lib/nova. Check if there is enough free space there.

If your instance uses a volume, you need to check if there is enough room on the volume backend.

As far as I know, the all-in-one implementations of Packstack and DevStack both put volumes on a 10GB loopback device. They are also configured so that instances launched from Horizon use volumes by default. There is a good chance that this is your problem.

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If your instance uses an ephemeral disk, it's normally created under /var/lib/nova. /var/lib/nova (in the case of DevStack, /opt/stack/data/nova/instances). Check if there is enough free space there.

If your instance uses a volume, you need to check if there is enough room on the volume backend.

As far as I know, the all-in-one implementations of Packstack and DevStack both put volumes on a 10GB loopback device. They are also configured so that instances launched from Horizon use volumes by default. There is a good chance that this is your problem.

image description

If your instance uses an ephemeral disk, it's normally created under /var/lib/nova (in the case of DevStack, /opt/stack/data/nova/instances). Check if there is enough free space there.

If your instance uses a volume, you need to check if there is enough room on the volume backend.

As far as I know, the all-in-one implementations of Packstack and DevStack both put volumes on a 10GB loopback device. They are also configured so that instances launched from Horizon use volumes by default. There is a good chance that this is your problem.

Below is a screenshot from the instance launch dialog. Clicking No may solve your problem.

image description