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@PeymanDadkhah-uz7im 2 күн бұрын
Hi there, your unix tape may work on old mvme68k and vme147 processor board.Do you have a dump or image that can make a duplicate of bootable unix systemv/68 ? I will be glad to test it on my 90's mvme68 hardware.Thank you in advance
@muchosa1 15 күн бұрын
Why not just plug the molex ends into the DIN?
@cmonkey63 Ай бұрын
I had an Iomega Zip drive that I used to back up my project files. 100MB in 1998 was a lot of storage. Bought one 250MB disk only to discover the dreaded "click of death". Sigh. Glad you got the data off those disks though.
@My_Op Ай бұрын
Great content. To the point, a little funny, with nostalgia and knowledge. I wish the best to your channel.
@jefersonfischer Ай бұрын
good video
@Knaeckebrotsaege 2 ай бұрын
Another problem I've faced with QIC tapes: the drive itself. As you mentioned the cartridge itself has a hard plastic wheel. So the engaging end in the drive needs to have a rubber wheel to drive it. I don't think I need to go any further for you to guess where the problem lies...
@DmitryBrant 2 ай бұрын
Absolutely right! Some drive manufacturers are much better than others in this respect. From what I've seen, Archive Viper drives are the worst - pretty much all of them have a rubber wheel that has turned to goo. But on the other hand, my Tandberg 3600 drives are still as solid as ever.
@Knaeckebrotsaege 2 ай бұрын
@@DmitryBrant That, plus even if the wheel hasn't turned into goo, if someone left a tape in it at some point for whatever reason, it'll have a flat spot just like a regular audio cassette or VCR pinch roller would have and be just as unusable. Ask me how I know 😐
@IlanUsanoV 2 ай бұрын
Hi , I have got few of qic cartridges for irix instalation of specific version for sgi iris 4d/20 pc , Can I some how read them and make back up on windows and then transfer the files to cd and use them on instalation for sgi pc?
@DmitryBrant 2 ай бұрын
Sure, that would probably be feasible. I can certainly help with reading the data from the tapes and getting it onto a CD, if you'd like to contact me through my site: dmitrybrant.com, but beyond that I'm not familiar enough with SGI PCs to know if the installation would work.
@diegodelgado1100 3 ай бұрын
After replacing the traps did you notice if there was less gas used to heat the system when looking at your gas bill?
@DmitryBrant 3 ай бұрын
Oh yes, there was a small but noticeable decrease in total gas usage. But the biggest improvement was to fix the water-hammer noise in the pipes.
@diegodelgado1100 3 ай бұрын
Forgot to ask, did replacing the cages help other radiators heat up entirely or faster? I’ve got two in my home that only get hot at the very top - opened the trap and am trying to figure out which cage I need
@DmitryBrant 3 ай бұрын
@@diegodelgado1100 That wasn't really an issue we were having, but I would imagine it would help with that, too.
@paulbruneau7379 4 ай бұрын
Makes me glad I have 1-pipe!
@TheSoundmanPete 4 ай бұрын
VERY well done. Very informative for the regular guy. Two thumbs up from PJmax at DIY.
@j.lietka9406 5 ай бұрын
As a kind of hobby I look for electronics in dumpsters and curbside stuff. Recently found a Sony Tape Drive (SDT 9000) and a box of 5 TDK Ultrium2 200/400GB blank - unused - cassettes. Do you need special software besides drivers to read any info from these tapes? i am not sure if the TDK tapes work with the Sony.
@DmitryBrant 5 ай бұрын
From a quick search, it looks like the SDT 9000 drive reads DAT tapes, whereas Ultrium tapes are LTO, so they wouldn't be compatible with the drive. As far as software, if you want to read the data that's currently on those tapes, you will definitely need the original software that was used to write them.
@j.lietka9406 5 ай бұрын
@@DmitryBrant the TDK Ultrium2 tapes are unopened, unused - blank, virtually new cassettes. It's a small box of 5. I didn't find any DAT tapes when I found the Sony drive. Thank you 🤓 not sure what I can do with the Sony DAT drive. Or the TDK tapes! 🤣 I think the TDK LTO cassettes might be a slightly different size than the DAT cassettes. I don't have a reader for the TDK Ultrium2 tapes.
@flapjack9495 5 ай бұрын
OK, so tell us more about the software you used to extract the data!
@skynetcybersystem3tech 5 ай бұрын
👍
@bobsbits5357 6 ай бұрын
when i got the software i did find out how slow the old drives were in the past dds 1 hell slow i had the same kind of drives you had here they did my head in to slow they do sell of silly money working
@bobsbits5357 6 ай бұрын
nova backup can see the drive and do the drivers i have had the £25 i year soft wear black firday deal
@janpedersen9120 6 ай бұрын
This was totally awesome to watch, we even saw how the data was read out ;) i can say i didnt really know that these bands where that bad, thanks for doing this informative video with all . i learned something ..
@computer_toucher 7 ай бұрын
Once I got two Compaq DLT-30 drives from an old Proliant rack (including the 2x Pentium Pro server, the disk cabinet AND the 60 kg UPS). Heavy beasts. A Linux nerd gave me his old backup tapes for it, and I actually used it for backup of my 20 GB secondary hard drive :) I just used tar.
@davidhalliday7776 7 ай бұрын
Ah but that was only the first file. There could be more. I notice you did use the none rewinding device (nrst) I guess you just skipped this detail to keep the video short. Installed lots of Sun machines from from QIC-60 tape back in the day. From early M6800 based Sun-3, through the monster Sun-4 systems and early SPARCstations 's
@DmitryBrant 6 ай бұрын
Very perceptive! Yes, I do generally proceed to read any additional files from the tape until it reaches EOT.
@robwebnoid5763 7 ай бұрын
I have a couple or so of these larger QIC tapes. And I still have our smaller QIC (QIC-40?) tapes that we bought in the early 1990's to back up our office computer, however I have not reread them since the 1990's. I have about 3 QIC tape drives, one external. Perhaps I will have to check them again of these days before my earthly time is up, heh.
@KevinInPhoenix 7 ай бұрын
I used QIC tapes in the 90s. They use simple parity to detect read errors but are unable to correct errors. A single error would abort a restore operation. The 4mm and 8mm tapes of the same era used ECC to detect and correct read errors and so were much more reliable.
@fillg 7 ай бұрын
I sold and installed a lot of the Colorado floppy controller based drives but was always frustrated by how slow they were because of the limited abilities of the controller. I didn't buy my own until they came out with the ones that hooked to my IDE controller, MUCH faster!
@vannikuhs674 7 ай бұрын
Promo*SM
@janpedersen9120 8 ай бұрын
i hate when ppl just leave out the important stuff like what software to handle blobs of data, the whole video just becomes hear listen to a tapedrive and me "putting in pictures" 6 out of 10, if you provided that last bit of unknown i would rate it higher. sadly i just feel i wasted time as my reason for clicking where to learn why use linux to blob the data. everyone can do that. but have a nice day, hope to hear more of the informational stuff.
@deepsleep7822 8 ай бұрын
@Dmitry: on Linux, what command did you use to read the tape? Thanks.
@DmitryBrant 8 ай бұрын
Well the command to read the tape is very simple: "dd if=/dev/nqft0 of=tape.bin" The big hurdle was to compile and load the "ftape" driver, so that the tape device (/dev/nqft0) becomes available. You might find ancient distros that have ftape bundled in them, but it wouldn't be the "latest" version of ftape. To get the latest version working, you need to do actual kernel hacking (at least I did).
@deepsleep7822 8 ай бұрын
Disappointing to hear that support for these tape drives, in Linux, has been dropped. I have a QIC drive I wanted to experiment with. I used Centos a long time ago. Really liked the distro.
@peteregan9750 8 ай бұрын
lol Tape drives are good for backup but very expensive lto-9 or rdx for consumers damn expensive for analog tech!
@chiminmao2620 8 ай бұрын
I have a 68010 based cup board running with Multibus. It also has mc68450 and mc68451 installed on board. It claims that this board is ready for Unisoft UNIX. I m expecting to have this tape to try.
@tenminutetokyo2643 8 ай бұрын
Ditto yeah! I remember it well when it first came out.
@ForgottenMachines 8 ай бұрын
1:05 We ALWAYS think that's interesting. Convergent Technologies' MiniFrame, MightyFrame & UNIX PC all ran UNIX versions on Motorola 68000 processors, and I've hunted those OS tapes for years! Any idea what brand/make the machine is that this UNIX system was made for?
@chiminmao2620 8 ай бұрын
I have a 68010 based cup board running with Multibus. It also has mc68450 and mc68451 installed on board. It claims that this board is ready for UNIX. I m expecting to have this tape to try.
@grantbanstead1971 8 ай бұрын
BackupExec was the longest lasting high quality backup software that started on DOS and moved through Windows often behind other brand names.
@Neksus-M06 8 ай бұрын
My personal, non professional experience, was of a consumer toy borrowed from an enterprise solution. It was annoying to deal with and all the data that could have been interesting to save was easy to backup on 3.5 floppies. But stepping up the level it was a cheap solution, albeit slow as death. You are helping me come to terms with "ancient' tape storage :) LOL Great work!
@jennytaylor4155 8 ай бұрын
Irritating intro CRAP MUSIC
@CommentConqueror 8 ай бұрын
I like these videos
@iamdkk 8 ай бұрын
would love a dump of the 68k unix tape. Wondering if any of the binaries would run on Amiga UNIX or A/UX.... I wonder what the hardware platform was....
@jp-ny2pd 8 ай бұрын
I had one of those 250mb colorado drives back in the BBS days. Originally there was a door program that would let users download files from the tape. Later I got a couple of NEC cd-rom changers and the tapes became just backups. They worked well other then they were slow as dirt cause of the floppy interface.
@Davesvinyl 8 ай бұрын
i'm so glad this channel come up on my timeline. very enjoyably to watch
@troyfowler5177 8 ай бұрын
Wow! Hearing that old drive spin that tape takes me back! The very first tech support gig I had was for Colorado Memory Systems, supporting DOS, 3.1 and 95. Fun fact: If you run the original Colorado software in Windows and click the About menu, you will get the Colorado Mem Sys logo. If you double right click on the sun in the logo, you will have an asteroids like game controlled with the arrow keys.
@cmonkey63 8 ай бұрын
A tape backup that can be successfully read 25 years later is definitely a good backup.
@flagger2020 8 ай бұрын
Yep, between lack of retention runs and rewrites to prevent loss due to write through errors. So the tapes must have been stored well, and their cases did their job well.
@BandanazX 8 ай бұрын
back in the 90s warez scene we standardized on the backup program included in win9x. worked great. oh the days of tape swapping warez meetups
@techhoppy 8 ай бұрын
Ahhhhh!! I thought for sure in this video you’d show us how you extracted the data from these binary blobs!! PLEASE do a video on that if you would kind sir!!
@paulcarboneNY 8 ай бұрын
Agreed - I'd love to hear more about the extraction process as well please!
@skjerk 8 ай бұрын
Yeah, that's kinda the holy grail of this!
@rrpiva 8 ай бұрын
Yes, please. Thanks!
@janpedersen9120 8 ай бұрын
same here also why i really down voted video, begin of video i though that was the real reason for doing a video to show how ppl can actually handle data and not just a hear my tapedrive and listen to a story.
@Kardall 8 ай бұрын
My curiosity is sated! thank you! Also, that Unix software would be neat to fiddle with since most people have never run a Unix operating system. It's pretty different compared to a Linux OS so. If you haven't, then I would definitely try it out. You should be able to set something like that up with QEmu because it'll let you try to emulate an actual processor. Man... Borland Delphi. I used Turbo Pascal 7.0 back in those days. That would be awesome to play around with again lol
@stpworld 8 ай бұрын
I do still use dat and LTO tape i send dats to my uncle to store in his bank vault. My old gateway has a tape drive in it but I have not run it for years.
@Arc.hitectureMusic 8 ай бұрын
Subscribed to your channel after this video. Loved your presentation style, kept me interested throughout the video.
@rickeymh 8 ай бұрын
I let this technology wither-up and die just like my youth.
@white_mage 8 ай бұрын
old and obsolete but extremely cool
@uzimonkey 8 ай бұрын
I get the impression that the belts were so cheap because they didn't want you using them for archival purposes, they likely sold archival tapes that were basically the same thing but lasted longer.
@cyberstick2 8 ай бұрын
This is the digital equivalent of "I found a safe! Here's how I cracked it!" and then not showing what was inside.
@quantumleap359 8 ай бұрын
We used the 1/4 inch backup cassettes in the 90s. Really, other than having to have a months worth of tapes 35 or so, and a little maintenance of the drive, the system was flawless. Only had to use the backup tapes 3 times, but each time it was a lifesaver. Basically backed up each day's worth of business data. Thanks for the video!
@MrCrrispy 8 ай бұрын
They were super reliable, I did my PC backups on this back in the time with a used drive I got from a customer and an Adaptec scsi card 🙂
@flinch622 8 ай бұрын
Soon, digital archeology will be a profession.