I will say again. Use the SMS ACS routines to divert ALL application data (no JCL changes required) to disk. The only factor I would use to keep any application data on tape would be is it was large, as in to large to fix on disk. It here are classes of application data that are rarely or never read again, assign them a to a rapid migration class.
The only things that directly write tape here are DFHSM, FDRABR and Adabas back-ups. > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Benik, John E > Sent: Monday, July 30, 2018 11:20 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: Data placement through analytics. > > We are not speaking of HSM data, but rather Physical Sequential files that are > being directed to tape. We will more than likely use SMS to control > allocations, but need to determine if some of the tape files are better > candidates for disk. Requesting the users to change their JCL is not an > option. Both tapewise and mountmon seem like good tools to use to help us > determine that. I'm just trying to lay out the best way to proceed as far as > determining where the data should be placed. Common sense tells me small > tape files with a short retention, and not read would be good candidates for > disk. We are using DLMs for HSM and general purpose tape. > > > > John Benik > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Elardus Engelbrecht > Sent: Monday, July 30, 2018 12:08 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: Data placement through analytics. > > John Benik wrote: > > >I am trying to find a way to use either Tapewise or Tape Mount Monitor to > determine the best media to store the tape data on. In other words I would > like to be able to look at some reports and be able to state that this data > should be on disk and not tape. The tool we are using currently works for > disk to tape determination but not tape to disk. If anybody has any ideas on > how to do this it would be greatly appreciated. > > A question please: Is there something in HSM and SMS (management class) > you're missing to determine the placement of datasets? > > We generally use age, backup requirements and frequency of usage to > determine where datasets are placed on disk and 'tape' (actually VTS > cartridges). > > What are your goals to determine what media do you want to use? Do you > have a 'Tape management system'? > > Disclaimer - I never used Tapewise at all. I have used Tape mount monitor > years ago while being a storage admin, but discarded/dropped it eventually. > > Groete / Greetings > Elardus Engelbrecht > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > This e-mail, including attachments, may include confidential and/or > proprietary information, and may be used only by the person or entity to > which it is addressed. If the reader of this e-mail is not the intended > recipient > or his or her authorized agent, the reader is hereby notified that any > dissemination, distribution or copying of this e-mail is prohibited. If you > have > received this e-mail in error, please notify the sender by replying to this > message and delete this e-mail immediately. > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
