I was at the Guide Share Europe conference in the UK last week. I had not been for a few years, and it was great to be able to brush up my latest z/OS skills. It was the largest attendance – over 500 people – and about 50 young people which was great (so young they were not allowed to drink alcohol). It was also CICS’s 50th birthday, so a dinner, lots of cake and impressive fireworks.
One presentation caught my eye. Running a z/Linux container in a z/OS address space. yes – a z/Linux container in an address space, not USS. Instead of having to install z/VM, or having to carve out an LPAR for z/Linux, you “just” configure the address space. It looks about as complex as installing MQ on z/OS. For example you have to define linear datasets for the Linux to use. These are accessed by page number – just like a page set. You control it using the z/OS modify command. You access it via TCP/IP so there is no cross memory interfaces into it.
You can now run all of the clouds stuff like Jenkins within z/OS in an address space – WOW!
Recently someone said that virtualization had made a huge difference to the way systems are deployed these days. I said I was using virtualisation on vm/370 before he was born.
I wonder what will be “new” on z/OS in 20 years time?