Re: Infinidat - Test Result Lies
You are correct as the test EMC ran was built to purposefully break Pure, not to be real world. They claim they followed the IDC testing, but those claims are incorrect for a host of reasons.
If you actually used that test on Infinidat they way EMC wants then you'd fill the array a few times over, keep the dataset around ~80% full (not 30% like Infinidat did) and then run random reads/writes against it. The Infinidat would start to have cache misses as the dataset is bigger than their DRAM.
Infinidat pretends like they made it harder by testing 200TB vs the 50TB with Pure/EMC, but the size isn't the important part. It's how the array reacts to random reads from 80% of the total capacity of the system. There's no intelligent caching algo that will be able to handle this as the reads won't follow data locality patterns Infinidat is expecting to see. That's just one reason why the EMC test is BS as IDC recommends implementing data locality into the synthetic workload.
Biting the hand that feeds IT
