Hardware Node and Container Statuses

At any point of time, any Hardware Node and Container is characterized by a status (or state).

A Hardware Node may have two statuses only:

A Container, in its turn, may have five stable statuses and a number of transitional statuses. If the Container is in one of the stable states, it means that it is likely to continue in this state until its administrator performs a task that would change its status. If the Container is in one of the transitional states, it means that it is currently passing from one stable state to another. During a transition stage, no operation can be performed on the Container until the transition is finished.

The stable statuses are:

Status

Description

Possible Actions

down

The Container is stopped and its private area is unmounted.

Starting/ Linux repairing/ reinstalling

mounted

The Container private area is initialized and ready to work, but the Container is not running.

Starting

running

The Container private area is mounted and the Container is running.

Stopping/ restarting/
Linux repairing

Linux suspended

The Container is stopped and its private area is unmounted. The difference between the suspended status and the down status is that the current state of a suspended Container is written to the /vz/private/CT_ID/dump/Dump file on the Hardware Node, and can be quickly restored from there.

Resuming. Restarting, repairing and reinstalling are not recommended because these actions are most likely to alter the saved state of the Container.

Linux repairing

The Container is mounted in the repair mode.

Exiting the repair mode.

The transition statuses are:

Status

Description

creating

The Container is being created.

mounting

The Container is being mounted.

starting

The Container is starting.

stopping

The Container is stopping.

restarting

The Container is being restarted.

unmounting

The Container is being unmounted.

destroying

The Container is being deleted.

Linux starting-repair

The Container is entering the repair mode.

Linux stopping-repair

The Container is quitting the repair mode.

setting

The Container parameters are being set.

migrating

The Container is being migrated.

moving

The Container is being moved.

cloning

The Container is being cloned.

updating

The Container is being updated.

backing-up

The Container is being backed up.

restoring

The Container is being restored from the backup.

reinstalling

The Container is being reinstalled.

suspending

The Container is being suspended.

resuming

The Container is being resumed from the suspended state.

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