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Building a *REAL* VAXcluster 

digital diggings
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VAXclusters were first announced in 1983 for the larger VAX machines. This involved expensive servers, interconnects, disk controllers and disk hardware. Later on Digital introduced clustering over DSSI to support the smaller MicroVAX 3000 & 4000 series. The controllers were built in to the machines which significantly reduced the cost. Clustering was also supported over ethernet in a master/slave type configuration.
In this episode I configure a pair of MicroVAX 3400's in a "real" cluster using the DSSI architecture.

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6 сен 2024

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Комментарии : 30   
@digitaldiggings
@digitaldiggings 2 года назад
Wow, this one has been in the works for a few months. After repairs, configuration, school holidays, sick kids, filming and a massive amount of editing (so you don't get too bored), this one is finally done!
@chumbawumba1959
@chumbawumba1959 Год назад
In 1984 I composed a business brief labeled "Cloud Computing Solution" for a large Pulp Mill situated in New Augusta MS. The basic scheme was showing users with VTxxx terminals all connected to Dec Terminal Servers, sitting on a shared Ethernet network with application and data services provided via VAXCluster comprised of DEC VAX 11/780 systems and DEC HSC storage nodes connected to a Star Coupler. It depicted that the application servers, and the databases lived in a cloud, where users would access the data via the apps over both local area and wide area networks. Little did I know that this would accurately describe modern-day cloud computing by simply replacing the terminals with personal computers and the VAXCluster subsystem with now current server-side apps and databases.
@willpaxman5236
@willpaxman5236 8 месяцев назад
As someone who is too young to remember the unix wars, I love watching videos like this and seeing the cool and unique hardware that was out there.
@nielsroetert
@nielsroetert 2 года назад
These clusters were pretty much bullet proof and some of our largest customers relied heavily on them, great to see the setup again, it's been a while.
@stephanschmidt2334
@stephanschmidt2334 10 месяцев назад
Love your videos, did my first internet coding in C on VMS on a VAX cluster in the early 90s.
@Desmaad
@Desmaad 9 месяцев назад
Andy Goldstein, who worked on VMS and VAX, did a lovely series of videos for VSI on VAX clustering, if you're into technical stuff like that.
@rhodaborrocks1654
@rhodaborrocks1654 11 месяцев назад
Wow, the last 3400 I saw was about 25 years ago sitting in the corner of my office, that was our spare one, the company I worked for at that time had a couple of others in production plus a few of the smaller 3300 boxes. I was a big VMS fan at the time but around about then I changed jobs and moved into a Unix environment and initially absolutely hated Unix, especially that crumby vi editor after the luxury of edt/eve. Just recently I fired up VMS in simh as a way to visit an old friend and it felt totally foreign, primitive even and I couldn't remember much at all. There was a lot of VMS vs Unix banter back in the day but I guess the one you vote for is the one you're familiar with. VMS and the VAX hardware was super reliable though, I recall once heading out to perform a VMS upgrade on a 3300 that I hadn't physically seen for about a year but when I got there I couldn't find it, it couldn't have been moved because it had never gone down, it turned out that they'd re-furnished that office space some time previously and just built the new furniture around it, I had to call a carpenter in so I could get to it !! Very interesting video, thank you.
@antoniomartineau6050
@antoniomartineau6050 Год назад
I was worked a lot with VAX and Alpha servers with OpenVMS and TRU64. This was my favourite part of my career in IT. Thanks for filming and share. Digital lover forever...!!!.
@happybear2975
@happybear2975 Год назад
Cool, brings back a lot of memories about when we could actually touch the data center hardware.
@thudtheace
@thudtheace 2 года назад
Fun to see the old MicroVAX, had several of these at work that ran VAXELN. Since our Microvaxes had no local disk they would load their OS off the vaxstation 3100 cluster (had 5 in a cluster, 3 by the time I left).
@douro20
@douro20 10 месяцев назад
Quantum made DSSI disks for a while. There was also an adapter from CMD which allowed SCSI disks to be connected to a DSSI bus.
@digitaldiggings
@digitaldiggings 10 месяцев назад
DEC also had an adapter for this (and I have one), but unfortunately I cannot find the required cable for a reasonable price.
@Moonblade042194
@Moonblade042194 2 года назад
Love seeing old server hardware I have no idea about. All I've really had experience is with ALPHA CPUs.
@digitaldiggings
@digitaldiggings 2 года назад
The later machines are fast, but the old ones are better built!
@mitfreundlichengrussen1234
@mitfreundlichengrussen1234 11 месяцев назад
Had two of them at Fujitsu Munich GmbH - running 2 Fujitsu Super Eagle - good times, thanks for sharing
@markharby180
@markharby180 2 года назад
Bringing back fond memories, thanks for doing this
@SSJIndy
@SSJIndy 11 месяцев назад
I started out implementing a 2 node Decnet between two 11/70's via RS-232 at (I think) 9600 baud. It seemed like magic at the time.
@digitaldiggings
@digitaldiggings 10 месяцев назад
We used to run LAT across the country on (I think) 48K lines. Supposed to be ethernet only, but it worked fine! One of the other sysadmins also set up a cluster between cities (~1000km) as a test.
@tedohayer
@tedohayer 2 года назад
Love this channel!
@digitaldiggings
@digitaldiggings 2 года назад
Thank you!
@MrWarneet
@MrWarneet 2 года назад
I had to gasp when you handled that 370MB drive because around when it was released I was still messing around with RA-80's and the like.
@digitaldiggings
@digitaldiggings 2 года назад
Yes, I was still using RA81s then (which are probably the same size). The RF31s still look big compared to consumer HDDs, but this changed later with the RF35 & 36 drives (800MB & 1.6GB) which were 3.5"
@tanyablonska5747
@tanyablonska5747 2 года назад
that was fantastic. thanks for filming. love watching the setups. thanks so much!
@digitaldiggings
@digitaldiggings 2 года назад
Thanks for watching...
@TheNovum
@TheNovum 2 года назад
OpenVMS is blackmagic for a BSD novice like me.. amazing stuff. amazing channel
@leegleason
@leegleason 2 года назад
Great video about building a cluster. But you left out demonstrating one of the most valuable features of a cluster - setting up a common SYSUAF and RIGHTSLIST then mounting the disks /CLUSTER, so you can access the disks on either system, without using DECnet. But still, great video.
@digitaldiggings
@digitaldiggings 2 года назад
SYSUAF and RIGHTLIST are in common by default and I did mount the disks /CLUSTER. The cluster traffic goes over the DSSI bus, so in theory DECnet is not required, but it is very useful to have enabled. Cheers,
@sundhaug92
@sundhaug92 2 года назад
Nice setup, better than the one at Madame Tussauds
@paultraynorbsc627
@paultraynorbsc627 Год назад
Had these at Ford Motor Co
@KD5NJR
@KD5NJR Год назад
Awesome !!
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