While the term “shard” itself isn’t explicitly used in the current Meraki Cloud Architecture document, the architecture does describe how customer management data and dashboard services are hosted and replicated. Those functions map directly to what Meraki engineers commonly call shards.
According to the documentation, if a data center fails completely, the backup center can be activated within minutes using real-time data replication.
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
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