Many organizations mistakenly believe that ISO 27001 alone covers availability. In reality, ISO 27001's Annex A.12 (Operations Security) touches on backups and redundancy, but it lacks the depth of planning that ISO 27031 provides. Here is why you need to read this standard:

: Many university libraries or large corporate technical libraries provide digital access to ISO standards for their members/employees through subscriptions like IEEE Xplore. summary of the key components

Test each scenario twice a year.

Free versions found online are often drafts or older versions that do not reflect current best practices. Key Components of ISO 27031