Running Linux on a real IBM z13 mainframe with LinuxOne - M60

In this video we access a real iron IBM mainframe and put it thru its paces.

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[TheExardk]

I like the use of CRT terminal in the intro, gives it more flair....it just feels naturally ;)

[rationalraven]

I was shouting at my screen "it's not in /root it's in /home/linux1!!" lol, easy mistake though, I'm often used to being logged in as root too

[rationalraven]

very interesting to see the big difference in the assembly for x86 vs s390x!

[geoffpool]

Awesome Video! I was mainframe user in financial services for over 20 years. It remains my favorite business platform. Looking forward to more videos.

[maricomovies]

Rotfl, IBM always replay with the same story when asked why z/Linux runs slower than on a regular pc: "-Because of thousands VMs runs there. - Ok so shutdown other VMs and gimme all cpu power to test it. - We can't do this."

[nikolai]

Thank you very much for this video! Probably I'm a bit late here, but just can't resist to comment that it might be also entertaining to compare some benchmark running on linux/390x on a z system (like you use in this video) to the same benchmark running on linux/power on a power server of the same underlying hardware generation (that is probably POWER7 for Z13 if I understood correctly?) if you have access to such server(s). That might give some understanding of efficiency/penalty of all those emulation/indirection layers involved in modern implementation of S390 platform. Having regular gcc and gfortran available at both sides it'd be tempting to crunch e.g. some FFT/Crypto/mpeg4 benchmarking. Although comparing to Intel was also interesting. Thanks again!

[alexernst]

@moshix: Are these statements correct?
1. Modern IBM POWER processor core is a unified out-of-order IBM RISC microcore surrounded by additional circuits for dynamic translation from POWER RISC instruction set.
2. Modern IBM S/390 processor core is a unified out-of-order IBM RISC microcore surrounded by additional circuits for dynamic translation from S/390 CISC instruction set.
Thx.

[michaelyapkf]

Well done. Another interesting video on IBM mainframe series. Well..although linux is not my cup of tea, I still like it and eager to learn more. Interesting just seem like Linux on the mainframe is not as flexible i.e some applications like HTOP not available.

[FabricioEGiovanni]

Hello folk. Great video, thanks for sharing!

[baylinkdashyt]

I don't think the current CPUs are "PowerPC"... I think they are "Power", of which PowerPC is an adaptation/subset...

[Stosszahlansatz]

I am not sure I understood the emulation stuff: the IBM z13 has a z13 chip that emulates a LPAR in which z/VM runs and emulate a S/390 chip for the Linux guest?

[alexernst]

@moshix: Suppose we have an ANSI C code with the standard UNIX SVR4 (e.g. shmget()) and POSIX (e.g. pthread_create()) calls. Is it possible to build and run such a program on z/OS ? Thx.

[danimusbar]

Wow amazing,
Does IBM Linux One can be use for private server in my location such as Jakarta indonesia but all people can use my aplication, I mean I am build application in Android and iOs, the database is connecting to IBM Linux ONE,

My MongoDB, Node JS, Python putting it all in together in one physical system IBM Linux One

[firstlast-twhc]

I was of the opinion mainframe does batch jobs. How is the interactive nature of shell commands like top translated to mainframe batch jobs and back? I'm shure I miss something, but what?

[hariranormal]

you could have moved it to the "linux1" home directory, "SFTP" it from the ubutnu server and get the file. SFTP also works, scp isnt the only one solution

[evibes]

moshix, is there a link to the nqueens solver code you use to test. I'd like to run it on some VMs to see how they perform.

[titosalah]

how to open server after create it??
i use windows any app same remote desktop app fro windows

[IkanGelamaKuning]

our money in bank inside this mainframe. only numbers, no actual money.

[hariranormal]

what are the specs of this, the z15 I heard has like 40TB, so IS this like a "ONE SYSTEM" on TWO racks? or how the fuck does this thing works

[jms]

I hate GNU assembler syntax for making all architectures look the same