Re: ZHPF - Cost/Benefit Analysis
Has Pat Artis weighed in on this yet? We have done extensive in-house testing comparing standard non-zHPF DX/LR[E], non-zHPF PFX, and zHPF channel programs. The tests measure elapsed time, connect time, and throughput. We see *significant* differences between these three approaches, with zHPF being by far the best. IBM has an IOS benchmark program they run. Their zHPF results--and pointers to white papers, etc.--can be found in Paul Hagan's presentation here: http://www-03.ibm.com/support/techdocs/atsmastr.nsf/c6192fb3a43261248525 6d970082de57/5c9807ba6ed049bb862575bb005ac85c?OpenDocument -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: ZHPF - Cost/Benefit Analysis
Mark Jacobs wrote: Does anyone have any real world experiences with ZHPF that I can bring to the attention to management? We have done extensive in-house testing comparing standard non-zHPF DX/LR[E], non-zHPF PFX, and zHPF channel programs. The tests measure elapsed time, connect time, and throughput. We see *significant* differences between these three approaches, with zHPF being by far the best. IBM has an IOS benchmark program they run. Their zHPF results--and pointers to white papers, etc.--can be found in Paul Hagan's presentation here: http://www-03.ibm.com/support/techdocs/atsmastr.nsf/c6192fb3a432612485256d970082de57/5c9807ba6ed049bb862575bb005ac85c?OpenDocument -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 edja...@phoenixsoftware.com http://www.phoenixsoftware.com/ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
ZHPF - Cost/Benefit Analysis
Now that we have z10's in the environment I started to look at the new 'stuff' I can turn on. One of them is ZHPF but that requires a chargeable feature to the DASD array. Our DASD manager doesn't see any problems with not having the feature installed and I don't know enough about the benefits of enabling it. Does anyone have any real world experiences with ZHPF that I can bring to the attention to management? -- Mark Jacobs Time Customer Service Tampa, FL You can have any kind of a home you want. You can even get stucco. Oh, how you can get stucco. Groucho Marx - The Cocoanuts (1929) -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
