SAQ wrote:
Multia will run v7.3-2 with a bit of hacking
Possibly, but that's well beyond what the original DEC employee initiative “midnight hack” (of which the sources still aren't available) was made to support. I also managed to install something later on my Multia/UDB, but that's really besides the point. The person appears to be new to VMS, did you perhaps miss that?
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when run vertically and with a jimmied fan it will be cool enough.
Do you have a Multia/UDB? If so, how long did you run it? A few days, a week, a month? The Multia/UDB is notorious for failing, due to the very poor stock cooling fan and overall design. I replaced the stock fan in mine and also had to replace the battery, with a battery pack of my own. Even like that, I still don't fully trust it.
I'd definitely not recommend a rather unreliable and potential disastrous mess of a system like a Multia/UDB to a newcomer to VMS. The Multia/UDB wasn't exactly one of DEC's better systems and I fear it could indirectly not leave a very good impression of VMS, either.
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The downside is that most don't come with 3.5" internal drives (so you have to add in an external drive box), and memory is tight.
Who in his right mind would want to install a 3½" disk inside a Multia/UDB to begin with? That's asking for trouble. Also, having a disk in an external disk box/enclosure is also no guarantee that things will ‘work’. The Multia/UDB, or rather the various models, have all too often differing components such as SCSI controllers (sometimes not even an optional riser with SCSI controller, so merely the on-board IDE/ATA) and can behave very differently.
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VAXstation/MicroVAX 2000 is a lunchbox sized machine, but even slower and harder to keep running (MFM/RLL drive).
That system is so slow, already in its day it was considered sluggish and as a result even many die-hard DEC enthusiasts wo(uld)n't touch it. Definitely not recommended to a VMS newcomer. For that system to run somewhat comfortably, you'd need a very old version of VMS (very likely distributed on tape). Good luck finding that...
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I'd say a 3000/300 series Alpha would be smaller than the PWS - the PWS is a midtower PC size machine.
Is that large in your book? I think the much faster EV56 in the PWS 500au, plus having more universal PCI options at one's disposal, is much better than running an early and rather dated EV4. In fact, the PWS 500au enjoyed its last SRM release over approximately half a decade
after
the DEC 3000 systems were discontinued.