{"id":3394,"date":"2017-06-15T20:07:55","date_gmt":"2017-06-15T18:07:55","guid":{"rendered":"https:\/\/museo.freaknet.org\/?p=3394"},"modified":"2025-08-29T15:40:17","modified_gmt":"2025-08-29T13:40:17","slug":"manutenzione-forzata-sui-nostri-vaxvms","status":"publish","type":"post","link":"https:\/\/museo.freaknet.org\/en\/manutenzione-forzata-sui-nostri-vaxvms\/","title":{"rendered":"Forced maintenance on our VAX\/VMS systems…"},"content":{"rendered":"

Due to some ENEL (Electric company) scheduled maintenance, power was disconnected for more than 3 hours, sucking out all the juice from our modified UPS (connected to a 12V car battery). Unfortunately, this cleared Medialab uptime (459 days!) and forced us to shut down our online computers (SNORRY and GLORRY VAX\/VMS, and Corazzini with his emulator setup for PDP-11 and russian systems).<\/p>\n

In spite of a good SHUTDOWN procedure, when power came back we had some problems on our MicroVAX 3100\/40 (SNORRY): a well known RAM problem we were struggling with since some time.<\/p>\n

So we opened the computer, doing a big maintenance, cleaning all boards, connectors, power supply and checking the RAM one by one. So we found the faulty 4MB module.<\/p>\n

We temporarily booted the system with only 24MB RAM instead of 32 (RAM modules must be paired); meanwhile, at our Museum we found two identical RAM modules, donated some years ago by Matteo Basso, that hereby we thank deeply!<\/p>\n

So now the system is back running again, online with 32MB RAM!<\/p>\n

We also checked and cleaned our VAXStation 4000\/96 (GLORRY), that went back online with no problems at all.<\/p>\n

Just for fun, Corazzini gave us some boot problems, solved in some minutes. Mediualab (Slackware 7, Linux Kernel 2.2.19)\u00a0went back online automatically without any problem.<\/p>\n

Our VAX\/VMS are online 24\/7, and are part of the\u00a0RETRO-DECNET<\/a>\u00a0X25 amateur network: to connect and use them, just follow\u00a0instruction on this webpage, and log in following the computer instruction on screen.<\/a><\/p>\n

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