On 2017-03-16 23:01, Hittner, David T [US] (MS) wrote:
What I started with, though, was managing 11/730s in the mid-80s and was
optimizing the order of files on the console tape to be in the order they were
requested, so a 30-minute boot process fell to under 5 minutes... nearly all
the time spent was doing serial transfers with far, far less tape motion.
-ethan
What always surprised me was that Digital provided VAX 730/750 Console tapes "Out Of
Order" (alphabetically) which caused slow cold boot times, and YOU had to create an
optimized version of the tape if you wanted a faster boot time. And as Ethan said it
really made a difference in the cold boot time.
.. What a pain that was. I guess they never cold-booted the internal
development console-tape systems enough to get annoyed enough to optimize the
tapes for the customers. I spent a lot of time making boot-optimized console
tapes also.
My only comment is that I normally never booted from the TU58. Why would
you do that, except at initial install, or to run diagnostics.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: [email protected] || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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