On Wed, 21 Jan 2015 15:09:38 +0000, Bob Shannon <bshan...@rocketsoftware.com> wrote:
>>I think there are not special considerations with model 27 or model 54.Those >>dasd are just 3390-9 devices with a bigger size. >Correct. You aren't limited to Mod 27s or Mod 54s. As an example one can >define a Mod-15. The "mod" is based on the size of the volume. Anything GT a >>Mod-9 and LT a Mod-54 will work. GT a Mod-54 requires EAV. These days, I'd agree with that 99% of the time. All vendor software was updated years ago to support sizes > 32K CYL, but there could be some home grown code or old software floating around that could have a problem with something bigger than a 3390-27. Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS ITIL v3 Foundation Certified mailto:m...@mzelden.com Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html Systems Programming expert at http://search390.techtarget.com/ateExperts/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN