HPE Storage Users Group

Hi,

I see that the statcmp displays good cache info but is there a command which is able to flush cache from the nodes memory? I realize this may sound crazy but we are not in prod yet and want to run some IO tests and want to clearcache before each test.

Thanks

Sorry not possible, best you can do is to run a 100% random workload, that will attempt to defeat read cache and you could use this as a ramp up test to ensure cache is overwritten prior to you benchmark run. Writes will still be a hit but statcmp only reports write hits for hits in cache e.g when dirty pages (which were destined to be flushed to disk) are overwritten in cache by a subsequent write before they are flushed.