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Diffstat (limited to 'docs/Chapter4/Resiliency.rst')
| -rw-r--r-- | docs/Chapter4/Resiliency.rst | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/docs/Chapter4/Resiliency.rst b/docs/Chapter4/Resiliency.rst index 60f9c79..5127f56 100644 --- a/docs/Chapter4/Resiliency.rst +++ b/docs/Chapter4/Resiliency.rst @@ -14,7 +14,7 @@ VNF Resiliency -------------------------- +-------------- The VNF is responsible for meeting its resiliency goals and must factor in expected availability of the targeted virtualization environment. @@ -32,7 +32,7 @@ the overall guidelines for designing VNFs to meet resiliency goals. Below are more detailed resiliency requirements for VNFs. All Layer Redundancy -^^^^^^^^^^^^^^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^ Design the VNF to be resilient to the failures of the underlying virtualized infrastructure (Network Cloud). VNF design considerations @@ -122,7 +122,7 @@ All Layer Redundancy Requirements and evacuate for rollback or back out mechanism. Minimize Cross Data-Center Traffic -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Avoid performance-sapping data center-to-data center replication delay by applying techniques such as caching and persistent transaction paths @@ -143,7 +143,7 @@ Minimize Cross Data-Center Traffic Requirements across multiple data centers to avoid cross data center traffic. Application Resilient Error Handling -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Ensure an application communicating with a downstream peer is equipped to intelligently handle all error conditions. Make sure code can handle @@ -259,7 +259,7 @@ Application Resilient Error Handling Requirements location can take over traffic and process service requests. System Resource Optimization -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Ensure an application is using appropriate system resources for the task at hand; for example, do not use network or IO operations inside @@ -364,7 +364,7 @@ System Resource Optimization Requirements to not prevent use of these assets by other entities. Application Configuration Management -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Leverage configuration management audit capability to drive conformity to develop gold configurations for technologies like Java, Python, etc. @@ -400,7 +400,7 @@ Application Configuration Management Requirements to be bounced so that the VNF availability is not effected. Intelligent Transaction Distribution & Management -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Leverage Intelligent Load Balancing and redundant components (hardware and modules) for all transactions, such that at any point in the @@ -445,7 +445,7 @@ Intelligent Transaction Distribution & Management Requirements is able to control its load against the VNF. Deployment Optimization -^^^^^^^^^^^^^^^^^^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^ Reduce opportunity for failure, by human or by machine, through smarter deployment practices and automation. This can include rolling code @@ -537,7 +537,7 @@ Deployment Optimization Requirements not met. Monitoring & Dashboard -^^^^^^^^^^^^^^^^^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^ Promote dashboarding as a tool to monitor and support the general operational health of a system. It is critical to the support of the @@ -626,7 +626,7 @@ Monitoring & Dashboard Requirements development of the VNF. Virtual Function - Container Recovery Requirements -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ As part of life cycle management, for Cloud environment, VNFs need to support a set of basic recovery capabilities to maintain the health |