Re: Resource requirements for integration test cluster

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Hi Sage,

> I can provide some estimates and general guidance.

Thanks, this is really helpful!
 
> First, the test suites are currently targetted to run on 'smithi' nodes, 
> which are relatively low-powered x86 1u machines with a single NVMe 
> divided into 4 scratch LVs (+ an HDD for boot + logs).  (This is somewhat 
> arbitrary--it's just the hardware we picked so the tests are written to 
> target that.)

What's the size of those LVs?  Do the tests require a particular minimum size?

> I've been telling the aarch64 folks that we probably want at least 25-50 
> similarly-sized nodes in order to run the test suites in a reasonable 
> amount of time (e.g., minimal rados suite ~day and not days).
> 
> I'm not really sure how this maps on the Z hardware, but hopefully this 
> provides some guidance!

Yes, it does!  We'll certainly have to tune this is a bit depending on how everything performs on Z hardware, but this gives us a starting point.

Bye,
Ulrich
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