We have a small site and we used to upgrade yearly, but after awhile it became too much of a hassle to constantly be testing and working on an upgrade each year AND support all the ISV products and users as well. Right now we try and do it every other year. To me this is up to each site, but for large sites I would think annual upgrades would be very difficult due to all of the work to coordinate the upgrade - you would pretty much constantly be working on an upgrade.
We also ALWAYS ran into testing issues during the summer and during December due to vacations, so doing an upgrade had to be scheduled outside the June-August window and also outside December. So this also makes annual upgrades a pain with all of the scheduling. I found that the only way to do it was to order the new z/OS to arrive in November, work on it in December and then do user testing and rollout in the January to May window. I can see both sides of this, but it's really up to the environment and management of each shop to decide what's best for them. If you have the staff them annual upgrades are nice. C. Todd Burrell PMP, MCSE 2003:Security Security+, Network+ Lead z/OS Systems Programmer ITSO (404) 723-2017 (Cell) -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Bill Johnson Sent: Tuesday, August 17, 2010 10:33 AM To: [email protected] Subject: How often do you upgrade your zOS operating system? We currently upgrade our zOS every 2 years, for instance we just went from zOS 1.9 to 1.11. Does anyone upgrade yearly? Are there any benefits to upgrading yearly? Any drawbacks? TIA Bill Johnson ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] 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 [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
