Clark, The EXCP*BLKSIZE=MB is not true for all access methods. I'd only assume this is correct for SAM-E, which is probably the majority of tape IO.
Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of > Clark Morris > Sent: Thursday, September 23, 2010 6:03 PM > To: IBM-MAIN@bama.ua.edu > Subject: Re: [IBM-MAIN] Reports for GB per hour to tape > > On 23 Sep 2010 07:29:51 -0700, in bit.listserv.ibm-main you wrote: > > >Hi John, > > > > Yes, I had thought of extrapolating channel busy % but I'm not sure that > would be precise enough. > >Thanks for the suggestion. > > As I recall the SMF 14 (sequential read) and 15 (sequential write) > records have the device type and probably the address. EXCPs times > blocksize should give a decent approximation and taking all of the > records for a given 24 hour period should give a fair idea of the > number of bytes per day. > > Clark Morris > > > >Thank You, > >Dave O'Brien > >NIH Contractor > >________________________________________ > >From: McKown, John [john.mck...@healthmarkets.com] > >Sent: Thursday, September 23, 2010 10:25 AM > >To: IBM-MAIN@bama.ua.edu > >Subject: Re: Reports for GB per hour to tape > > > >> -----Original Message----- > >> From: IBM Mainframe Discussion List > >> [mailto:ibm-m...@bama.ua.edu] On Behalf Of O'Brien, David W. > >> (NIH/CIT) [C] > >> Sent: Thursday, September 23, 2010 9:21 AM > >> To: IBM-MAIN@bama.ua.edu > >> Subject: Re: Reports for GB per hour to tape > >> > >> Hi Rex, > >> > >> Thanks for responding. No, we have TMS (CA-1) as our tape > >> management system. > >> Guess I had a senior moment earlier. The number of bytes > >> written or read would obviously only be available at the end > >> of the job. GB/hour is just not available for any job running > >> past :59 of any hour. Management is not looking for GB/hour > >> of a particular job but rather the entire workload. > >> > >> Guess we'll just have to test a s/w encryption product to find out. > >> > >> Thank You, > >> Dave O'Brien > >> NIH Contractor > > > >Are your tapes on dedicated channels? What about an RMF channel (or device) > utilization report? Just guessing! > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- 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
