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Open source documentation of Microsoft Azure
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Page blobs per shard is wrong #109814

Closed worldspawn closed 9 months ago

worldspawn commented 1 year ago

This documentation states that it will create 4 page blobs per shard for a P1 Tier redis cache.

From https://redis.io/commands/cluster-shards/

A shard is defined as a collection of nodes that serve the same set of slots and that replicate from each other. A shard may only have a single master at a given time, but may have multiple or no replicas. It is possible for a shard to not be serving any slots while still having replicas.

So a shard in azure redis cache comprises one master and one replica. When a P1, 2 shard cluster is provisioned, based on the documentation that should be 2x4=8 page blobs. In fact a total of 14 page blobs are provisioned.

image

In US Central this costs USD $275.94 per month to run vs $157.68. An additional $118.26 over what I expect to spend based on the documentation.

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YashikaTyagii commented 1 year ago

@worldspawn Thanks for your feedback! We will investigate and update as appropriate.

worldspawn commented 1 year ago

I also have a 5 shard cluster that has produced 80 disks (expect 40).

flang-msft commented 9 months ago

Thanks for your dedication to our documentation. Unfortunately, at this time we have been unable to review your issue in a timely manner and we sincerely apologize for the delayed response. We are closing this issue for now, but if you feel that it's still a concern, please respond and let us know. If you determine another possible update to our documentation, please don't hesitate to reach out again.

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