> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of Ron Hawkins > Sent: Thursday, April 28, 2011 10:03 AM > To: IBM-MAIN@bama.ua.edu > Subject: Re: RES: using SMS compression - how to manage > > John, > > I didn't think &MAXSIZE took multivolume into account. Isn't > it just primary > + (15 * secondary)? > > I've often thought that compression products should come with > a sampling > utility to read one CYL of a dataset and provide a > compression report. This > could be used to isolate find the best compression candidates. > > If you're willing to write out that sample CYL one could > probably write > something to do this with REXX, SAS or lower level language. > > Ron
Well, I'm basically giving up. There is not a "simple" way to do this. So we'll just stay with Tech Services maintaining a table. In the old product, it was a "registration database". With SMS, it will be a set of FILTLIST statements in the DATACLAS ACS routine. I'm not too keen on any of this. But I just checked. Our largest VSAM file is spread onto 30 volumes. It is getting over 2:1 compression. So it would blow the 59 volume limit unless we change to something other than 3390-3 volumes. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * john.mck...@healthmarkets.com * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM ---------------------------------------------------------------------- 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
