Well depending on how technical you want to get. You could write some code to write/read data and then look at the RMF records.
I created some code to do that using VSAM KSDS. A poor persons benchmark software. I did not go as far as Carmen around turning stuff off/on. I would run the jobs before a change and then after a change. I would run the stuff in our sand box lpar to avoid other I/O from getting mixed in with my tests. Not the most scientific approach but it worked enough to show what the change might do. Last time I did something like this this was when we turned on zHPF. Paul Feller GTS Mainframe Technical Support -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Carmen Vitullo Sent: Thursday, August 25, 2022 12:25 PM To: [email protected] Subject: Re: Modern DASD benchmark testing [EXTERNAL] got ya, so sorry, It's been so many years since I've done any kind of benchmark, we used a tool back in the day that generated data, then read that data back over and over, the problem today, is I don't think there's so much control over the DASD subsystem as there was when I was benchmark spinning DASD or RVA's we'd make sure we'd clear cache, turn off cache, DFW and run some benchmarks, then do the same on the new subsystem(s) maybe someone here still performs DASD benchmarks and can offer a solution Carmen On 8/25/2022 12:19 PM, rpinion865 wrote: > Not so much as to where to find the statistics. Rather, a set of benchmarks > to produce the statistics. Thanks. > > > > > Sent with Proton Mail secure email. > > ------- Original Message ------- > On Thursday, August 25th, 2022 at 1:16 PM, Carmen Vitullo > <[email protected]> wrote: > > >> IIRC - the RMF/SMF record type 74-5 can you provide the I/O rates, >> Cache Statistics.....etc >> >> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ibm.com_serv >> ers_resourcelink_svc00100.nsf_pages_zOSV2R4sc342664-3FOpenDocument&d= >> DwICaQ&c=9g4MJkl2VjLjS6R4ei18BA&r=eUhu3PeeWy6RTndlJVKembFjFsvwCa8eeU_ >> gm45NyOc&m=Sfu9QUeD61DPi8IxmW4PEpaI9FONEd0zrNwb9t8PpxbGzSChwY9aFZZCy5 >> YUor0m&s=OeiFfcNCAm5sDtxmZe0oIBIKM9aS1iulszVqPhFFAT4&e= >> >> >> Carmen >> >> On 8/25/2022 12:11 PM, rpinion865 wrote: >> >>> I have been asked for ideas in regards to DASD benchmark testing. We would >>> like to compare IBM DS88xx's against competitors. Something that would >>> generate statistics for I/O rate, response time, and exercise track change >>> rate (replication performance). >>> >>> Something free of course. Thanks in advance. >>> >>> Sent with Proton Mail secure email. >>> >>> -------------------------------------------------------------------- >>> -- For IBM-MAIN subscribe / signoff / archive access instructions, >>> send email [email protected] with the message: INFO >>> IBM-MAIN >> >> --------------------------------------------------------------------- >> - For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to [email protected] with the message: INFO >> IBM-MAIN > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- Please note: This message originated outside your organization. Please use caution when opening links or attachments. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
