What is the primary goal of change management in SRE?
Change management aims to minimize risk while making infrastructure or software changes to maintain reliability and availability.
Why are postmortems important after incidents?
Postmortems help teams identify root causes, learn from failures, and implement actions to prevent recurrence.
Which practice helps reduce risk during changes?
Using canary deployments allows gradual rollout, reducing the blast radius of any potential issue.
What should a blameless postmortem include?
A blameless postmortem should document what happened, why, how it was addressed, and how to prevent it without blaming individuals.
What is the role of version control in change management?
Version control ensures traceability and rollback options, aiding in safer changes.
Why are frequent, small changes encouraged in SRE?
Smaller changes are easier to test, review, and roll back, reducing the risk of failure.
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What is the purpose of a change review board (CRB)?
A CRB ensures that proposed changes are reviewed for safety, necessity, and potential risks.
What does a rollback strategy ensure?
A rollback strategy provides a recovery plan in case a deployment fails, protecting system stability.
Which tool is useful for tracking incidents and changes?
Tools like Jira or ServiceNow are commonly used to document incidents, changes, and responses.