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acelab:cmc_workflow

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acelab:cmc_workflow [2018/08/01 10:48]
smasoka created 		acelab:cmc_workflow [2021/12/09 16:42] (current)
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-Document all steps from the beginning to the end of the project+===== Background ===== 
 + 
 +**Change Management Control (CMC)** is a continuous process of ensuring system changes are introduced in a controlled and coordinated manner to minimise service disruptions.  
 + 
 +The implementation and maintenance of //lengau// involves integrating many elements e.g. compute nodes, parallel file systems, fast networks, provisioning and configuration systems. The CHPC needed a platform to  
 + 
 +  * Test updates, upgrades, provisioning and configuration options. For example, High Availability (HA) and Failover. 
 +  * Test fairness policies. For example job scheduling and data storage  
 +  * Development of new features.  
 +  * Enable collaboration between Users and CHPC to test application behaviour, excluding performance, under different system configurations and provide the CHPC with input before the changes enter the production environment. 
 + 
 +Without the test cluster (from now on referred to CMC cluster) the CHPC cannot implement a CMC system where changes are proposed, tested, approved and finally implemented on the production cluster. The approval process without a CMC cluster is based on theory and not practical experience. This increases the risk to smooth service delivery. 
 + 
 +The CMC cluster is the platform where CMC actions are evaluated in order to gather enough information to submit a change request for the production environment. The process eliminates uncertainty and raises confidence in system operations which leads to delivering a reliable service to the user community. 
 + 
 +===== CMC Workflow ===== 
 + 
 +  - Submit a [[acelab:change_request|change request]] to access the CMC cluster 
 +  - Approval and Scheduling process 
 +  - Work on the CMC. [[acelab:user_guide|See User Guide]] 
 +  - Submit a [[acelab:change_report|change report]] from the CMC cluster work 
 +  - Acceptance and Implementation on //lengau//  
/app/dokuwiki/data/attic/acelab/cmc_workflow.1533113303.txt.gz · Last modified: 2021/12/09 16:42 (external edit)

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