Alert.png The wiki is deprecated and due to be decommissioned by the end of September 2022.
The content is being migrated to other supports, new updates will be ignored and lost.
If needed you can get in touch with EGI SDIS team using operations @ egi.eu.

Difference between revisions of "EGI Change Management"

From EGIWiki
Jump to navigation Jump to search
Line 5: Line 5:
The purpose of the IT Change Management Policy is to manage ''higher risk changes'' in a planned and predictable manner in order to assess risks, assign resources, and minimize any potential negative impact to services.  This is done by requiring change owners to prepare a Change Request document ([[File:Request+for+change+template.doc]]) where a set of standard questions regarding the change are answered and presented to the Change Advisory Board (CAB).   
The purpose of the IT Change Management Policy is to manage ''higher risk changes'' in a planned and predictable manner in order to assess risks, assign resources, and minimize any potential negative impact to services.  This is done by requiring change owners to prepare a Change Request document ([[File:Request+for+change+template.doc]]) where a set of standard questions regarding the change are answered and presented to the Change Advisory Board (CAB).   


The CAB meets to assess and approve changes and is coordinated on the '''egi-cab@mailman.egi.eu''' mailing list.  It consists of employees of the EGI Foundation including the Technical Director and members of the senior operations and management team.  Currently, the chair of the CAB is Matthew Viljoen.  Other members include: Tiziana Ferrari, Vincenzo Spinoso, Alessandro Paolini, Diego Scardacci, Peter Solagna and Gergely Sipos.  Others may be invited to join to provide additional expertise when discussing specific changes.  The decision to approve changes should be made unanimously by the CAB using input from experts, when present.  CAB meetings are tracked on Indico [https://indico.egi.eu/indico/event/3218/ here].
The CAB meets to assess and approve changes and is coordinated on the '''egi-cab@mailman.egi.eu''' mailing list.  It consists of employees of the EGI Foundation including the Technical Director and members of the senior operations and management team.  Currently, the chair of the CAB is Matthew Viljoen.  Other members include: Tiziana Ferrari, Vincenzo Spinoso, Alessandro Paolini, Diego Scardacci, Peter Solagna and Gergely Sipos.  Others may be invited to join to provide additional expertise when discussing specific changes.  The decision to approve changes are made unanimously by the CAB using input from experts, when present.  CAB meetings are tracked on Indico [https://indico.egi.eu/indico/event/3218/ here].


The basic process is as follows:
The basic process is as follows:

Revision as of 15:35, 15 November 2017

The EGI Change Management (CHM) Process Introduction

This is the homepage on the EGI Wiki of the EGI Change Management Process. Change management within the EGI’s production IT environment is extremely important in ensuring high-quality delivery of IT services.

The purpose of the IT Change Management Policy is to manage higher risk changes in a planned and predictable manner in order to assess risks, assign resources, and minimize any potential negative impact to services. This is done by requiring change owners to prepare a Change Request document (File:Request+for+change+template.doc) where a set of standard questions regarding the change are answered and presented to the Change Advisory Board (CAB).

The CAB meets to assess and approve changes and is coordinated on the egi-cab@mailman.egi.eu mailing list. It consists of employees of the EGI Foundation including the Technical Director and members of the senior operations and management team. Currently, the chair of the CAB is Matthew Viljoen. Other members include: Tiziana Ferrari, Vincenzo Spinoso, Alessandro Paolini, Diego Scardacci, Peter Solagna and Gergely Sipos. Others may be invited to join to provide additional expertise when discussing specific changes. The decision to approve changes are made unanimously by the CAB using input from experts, when present. CAB meetings are tracked on Indico here.

The basic process is as follows:

  1. For higher risk changes (score >4), the Change Owner (usually the Service Instance Owner - see below) submits a completed Change Request (File:Request+for+change+template.doc) to: change-mgmnt@rt.egi.eu. Lower risk changes do not need to be recorded unless the Change Owner feels that there is benefit from doing so.
  2. The change risk of something going wrong (risk = likelihood X impact) should then be recorded by setting the Custom Fields on the RT ticket in preparation for the CAB review. Further details about evaluating risk may be found here.
  3. The Change Owner should request the CAB Chair to convene the CAB who reviews the change with the Change Owner present. Once approved, this decision should be recorded on the ticket (along with the planned intervention date) and the change may proceed. Lower risk changes (score =<4) may be approved by the Change Owner and the ticket (if it exists) should be updated to this effect.
  4. After the change, the Change Owner should update the ticket with the intervention date, a comment about the outcome of the change.
  5. The change is reviewed at the next CAB and the ticket closed, with the intervention date recorded, if different from the planned intervention date.

In addition, repeated changes of a similar type may be approved as a Standard Change by the CAB. Subsequent changes do not then require explicit approval by the CAB; it is sufficient for the Service Instance Owner to submit a ticket to the "change-mgmnt@rt.egi.eu" recording the change is about to take place and confirming that it is a standard change.

Click here for a more detailed presentation introducing the process.

Services that fall under Change Control

Service Title
Service Instance Owner
EGI DataHub
Lukasz Dutka, Bartosz Kryza
EGI AppDB
Marios Chatziangelou
Operations Portal
Cyril L'Orphelin
Service Monitoring - ARGO
Kostas Koumantaros
Configuration Database - GOCDB
George Ryall
Helpdesk - GGUS
Guenter Grein, Helmut Dres
Accounting - Accounting repository (Computing and Grid)
Adrian Coveney
Accounting - Accounting Portal
Iván Díaz Álvarez
Messaging
Themis Zamani
Training Infrastructure
Gergely Sipos
Check-in
Nicolas Liampotis

Standard Changes

This is the list of standard, or pre-approved changes, listed by Service. The RT link references the original change that was approved by the CAB.

Service
Title
Description
RT Ticket Reference
Helpdesk - GGUS
Install patches on GGUS servers
The installation of patches is required on all GGUS servers for keeping the system secure.
RT#12262
EGI DataHub
Upgrade Onedata on the EGI DataHub
Upgrade of the EGI DataHub Onezone.
RT#12396

Software Development changes

Most changes that fall under the scope of CHM will likely be to production service delivery (e.g. upgrades, major hardware changes etc). However, changes may also be in the form of software development to production services. For example, if a user community requests new functionality from developers that requires 2 months of development effort, there may be a risk of insufficient funded effort, or reduced manpower elsewhere in the project. This can especially be the case if such development is unforeseen at the beginning of a project. In such cases, persons managing services are encouraged to bring such changes to the CAB for discussion, approval and (where appropriate) appropriation of development effort.

The workflow of such changes can be seen on this diagram, which additionally shows how the output of the Change Management process interacts with the Release and Deployment process.

CHM-RDM

Federated Change Management

The EGI Change Management is a centralized process for the EGI Federation. If organisations are providing EGI branded services and are already running their own internal Change Management process, they may continue to do so if their process meets the minimum requirements of ISO20k. If any changes are planned that have the potential to impact other EGI branded services, then the EGI Change Management process should be informed in advance by submission of a ticket to the RT queue linked above.

Full Procedure Documentation

Documentation of the complete CHM procedures and policy is available on the internal EGI Confluence. Please note that these pages are only accessible to EGI Employees, so PDF snapshots of these pages are additionally available here:
Change Management Process Definition, including Goals, Requirements, Roles and Definitions
Change Management Policy
CHM1 - Manage changes including emergency changes
CHM2 - Maintain the list, descriptions and step-by-step workflows for well-known and recurring changes

Contact

If you have any questions relating to EGI Change Management, please contact Matthew Viljoen (matthew.viljoen AT egi.eu).