I can't speak to the application development approach much, but I can speak to the infrastructure since we have been using USS for many components for many years. It lends itself to a sysplex quite well in terms of integrity and sharing provided you have the filesystems set-up appropriately. Please see IBM USS planning guides for details.
Darrold Classification: Internal Disclaimer: This email and any attachments are the property of USAA and may contain confidential and/or privileged material. If you are not the intended recipient, any use, disclosure or copying of this email or any attachments is unauthorized. If you received this email in error, please immediately notify the sender and delete the email and any attachments from your computer. -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Brian Chapman Sent: Thursday, September 29, 2022 7:54 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: EXTERNAL: Unix System Services migration How are most shops handling USS management and migration? For many years, there has been a strong sentiment in my shop against utilizing USS (security and scalability were always cited as the primary reasons) and we were only allowed to utilize USS with IBM and ISV software installs. Things are changing and now there is a strong push to change our culture around USS. However, we are greatly behind with the times and inexperienced with best management practices regarding USS migrations. I'm sure our shop isn't the only site with a similar configuration, but we have multiple systems for development lifecycles (alpha testing on SYSA and SYSB, beta testing on SYSC and SYSD, etc). Since USS requires separate dataset mounts for each system, this makes sharing common resources across the same lifecycle environment impossible; unless it is read-only (but how do you update the file system without an outage?). Is there some sort of management practice that we're missing to achieve the ability to leverage common resources in USS? Also, how do you handle migration? Our shop uses CA Endevor. Do you employ your change management software with USS migrations? If so, how do you copy directories/folders without outages? For directories/files that can easily be built with jobs, do you re-run these jobs on each system, or copy these elements? Thank you, Brian Chapman ---------------------------------------------------------------------- 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
