public:99_annexes:annex-b-terms-and-definitions:r:rollback

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision		 Previous revision
public:99_annexes:annex-b-terms-and-definitions:r:rollback [2026/09/12 17:42] – removed - external edit (Unknown date) 127.0.0.1public:99_annexes:annex-b-terms-and-definitions:r:rollback [2026/09/12 17:43] (current) – ↷ Links adapted because of a move operation nick_dido
Line 1: Line 1:
 +====== Rollback ======
  
 +[[public:99_annexes:annex-b-terms-and-definitions:start|Go to Terms and Definitions]]
 +
 +===== Discussion =====
 +
 +Rollback is a recovery operation that reverses the effects of an identified change by restoring the affected subject to a previously valid state.
 +
 +The affected subject may include:
 +
 +  * An [[public:99_annexes:annex-b-terms-and-definitions:i:infrastructure_environment|Infrastructure Environment]]
 +  * An [[public:99_annexes:annex-b-terms-and-definitions:i:infrastructure_resource|Infrastructure Resource]]
 +  * A [[public:99_annexes:annex-b-terms-and-definitions:v:virtual_machine|Virtual Machine]]
 +  * A [[public:99_annexes:annex-b-terms-and-definitions:k:kubernetes_cluster|Kubernetes Cluster]]
 +  * A [[public:99_annexes:annex-b-terms-and-definitions:c:containerized_workload|Containerized Workload]]
 +  * A [[public:99_annexes:annex-b-terms-and-definitions:p:platform_service|Platform Service]]
 +  * An [[public:99_annexes:annex-b-terms-and-definitions:i:infrastructure_configuration|Infrastructure Configuration]]
 +  * An [[public:99_annexes:annex-b-terms-and-definitions:i:image|Image]]
 +  * A database
 +  * Another operational subject
 +
 +The prior valid state may be identified through:
 +
 +  * A prior [[public:99_annexes:annex-b-terms-and-definitions:r:revision|Revision]]
 +  * A prior [[public:99_annexes:annex-b-terms-and-definitions:b:baseline|Baseline]]
 +  * A recorded configuration
 +  * A checkpoint
 +  * A snapshot
 +  * A prior [[public:99_annexes:annex-b-terms-and-definitions:i:image|Image]]
 +  * Another identified state representation
 +
 +Rollback differs from recovery:
 +
 +  * Rollback restores an identified prior valid state by reversing a change
 +  * Recovery restores an acceptable operational condition and may use rollback, repair, replacement, restoration, or another mechanism
 +
 +Rollback differs from restoration:
 +
 +  * Rollback reverses the effects of an identified change
 +  * Restoration reconstructs a subject or its information from a preserved representation
 +
 +Rollback differs from redeployment:
 +
 +  * Rollback restores an identified prior state
 +  * Redeployment performs a deployment operation again
 +
 +===== Definition =====
 +
 +//recovery operation that reverses the effects of an identified change by restoring the affected subject to an identified prior valid state//
 +
 +===== Source =====
 +
 +Dido Solutions, Inc. and Jackrabbit Consulting, Inc.
 +
 +===== Note =====
 +
 +Rollback does not necessarily:
 +
 +  * Restore external state
 +  * Restore information modified outside the controlled change
 +  * Reverse irreversible operations
 +  * Recover all dependent subjects
 +  * Occur automatically after a failure
 +
 +Applicable requirements should identify:
 +
 +  * The affected subject
 +  * The change being reversed
 +  * The prior valid state
 +  * The rollback initiation condition
 +  * The rollback result
 +  * State that cannot be reversed
 +  * Required [[public:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]]
 +
 +===== Example =====
 +
 +After an unsuccessful configuration change, Crucible performs Rollback by restoring the affected Infrastructure Environment to the identified Infrastructure Configuration Revision used before the change.
 +
 +----
 +
 +<WRAP centeralign>
 +© 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.
 +</WRAP>