Re:IBM introduces z15 mainframe
by monocasa on Sunday September 15, 2019 @04:32PM
(#20979329)
It's just weird to bring up AS/400 in a conversation about mainframes.
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It is as far away from a x86 server than a s/390 was from an AS/400. It was a unique architecture that came from, IIRC, the System/38. Also, its native encoding is EBCDIC. It shares a couple concepts and names, such as LPARs.
It has stuff like LPARs because it shares a processor arch with IBM's COTS servers running POWER (yes it has an extension to have tagged pointers, but they demoed it originally on unmodified POWER).
Ie. it shares way more with regular server boxes than mainframes.