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Yes I worked in a few places with mainframes. Never found them very interesting though because they were so tightly controlled. I do remember how flaky they we
by hoodoof 11y ago
Yes I worked in a few places with mainframes. Never found them very interesting though because they were so tightly controlled.
I do remember how flaky they were though. Constantly crashing and needing reboot, which could easily take the better part of an hour.
- DrScump 11y agoConstantly crashing and needing reboot Not at all, in my experience. They were vulnerable to power dips but otherwise low trouble (by the standards of the time; not like, say, SunOS on Sparc). They would go weeks or months without a reboot (such had to be scheduled through upper management and customers). IBMs even had a cool Quiesce feature where you could stop the processor (and all I/O) while leaving the system stable. This was necessary when doing things like disconneting/reconnecting peripherals and drives. But it didn't sing "Daisy, Daisy" in the process.