SC-36 Distributed Processing and Storage
Distributes processing and storage so that the failure or compromise of one supplier or site does not take everything with it.
3
artefacts
0
held by a system
1
at each review
hard
to go live
Document repository
where the evidence lives
teal = a system already holds it · olive = produced at each review
system holds itEvidence a system already holds
none for this control
periodic reviewEvidence produced at each review
- Test evidence of operation with one part unavailable · Document repository
governing documentDocuments that govern the control
- Distribution design and rationale · Document repository
- Analysis of shared dependencies across the distributed set · Document repository
First move
This control is evidenced by people and documents, not systems. Put the document under version control with an owner and review date, and log each review as a record with reviewer and date. Do not try to automate it.
Common gaps auditors find
- distributed sites all served by the same provider
- distribution designed for capacity rather than resilience
Do this for your whole sheet
Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.
Build my evidence sheetSC-30 Concealment and Misdirection · SC-37 Out-of-Band Channels