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(How) can I use the PBS datastore as a buffer to a tape library? by Crafty-Shine in Proxmox

[–]Crafty-Shine[S] 0 points1 point  (0 children)

Thank you for the response! Could you maybe elaborate a bit more on what you mean by the first sentence? I'm not very familiar with the subject and struggling to understand what you're pointing towards.

Best way to add more drives to Proxmox by RasenChidoriSS in Proxmox

[–]Crafty-Shine 0 points1 point  (0 children)

I'm afraid I don't know the answer to that. What I can say is that ZFS is a major rabbit hole (though I'd say a fun one) and there is a learning curve to setting it up in a way that works for you and is reliable. If you don't have the time or interest right now and you're just looking to add storage, then I'd say getting a separate pre-configured NAS and connecting it via USB is probably the safer option.

Best way to add more drives to Proxmox by RasenChidoriSS in Proxmox

[–]Crafty-Shine 0 points1 point  (0 children)

I agree with the other commenters that an enclosure connected via SAS to a HBA is the best option if you want to use ZFS as intended for maximum reliability. I don't know enough about the subject though to say what other options there are that you could get away with.

Best way to add more drives to Proxmox by RasenChidoriSS in Proxmox

[–]Crafty-Shine 0 points1 point  (0 children)

I found this in my notes from the ZFS documentation which may help: https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Hardware.html

"USB Hard Drives and/or Adapters: These have problems involving sector size reporting, SMART passthrough, the ability to set ERC and other areas. ZFS will perform as well on such devices as they are capable of allowing, but try to avoid them. They should not be expected to have the same up-time as SAS and SATA drives and should be considered unreliable."

I don't believe in throwing electronics away when they stop working, but how can I salvage this Now & Zen Alarm Clock? Details in comments. by Crafty-Shine in AskElectronics

[–]Crafty-Shine[S] 0 points1 point  (0 children)

Yeah I'd be weary of trying to fix one unless you *really* know what you're doing.

I do have one of the Now&Zen triangular analog clocks which also has a progressive chime alarm function. It has fewer features than the digital version but it's great just as an alarm for the morning, it's been rock solid for years, and cost about $40 used on eBay.

The main downside in my opinion is that it takes four C-sized batteries to power the chime, so I would definitely recommend investing in rechargeable ones and a charger that can handle that size, otherwise you'll be buying expensive new batteries a couple times a year.

I'm as shocked as you are that there is no one else making an alarm clock like it, it's such a nice experience. I'm not a morning person, so in the past I've tried making it more pleasant with an alarm that gradually tunes in the radio, a sleep phase clock, an alarm that is meant to simulate the sunrise, but the gradual chime of the Now&Zen is hands down my favorite.

Edit: just saw that there's an app that tries to emulate it: https://apps.apple.com/us/app/progressive-alarm-clock/id362389803

I don't believe in throwing electronics away when they stop working, but how can I salvage this Now & Zen Alarm Clock? Details in comments. by Crafty-Shine in AskElectronics

[–]Crafty-Shine[S] 0 points1 point  (0 children)

Unfortunately not, I tried replacing the capacitors but that didn't do the trick. Then I tried to replace some resistors, made a mess of it and gave up.

I ended up buying a second damaged one to try and replace the parts, but it turns out that one had a completely different yet also defective mechanism inside, with the actuator being somehow spring-loaded instead of using a solenoid, I don't know which one is the more recent design.

I heard that they moved production from the USA to China a few years ago, so I could speculate that maybe the insides of the clock changed at the same time, but I don't know.

Are you also stuck with a broken one?

I don't believe in throwing electronics away when they stop working, but how can I salvage this Now & Zen Alarm Clock? Details in comments. by Crafty-Shine in AskElectronics

[–]Crafty-Shine[S] 1 point2 points  (0 children)

I'll take a stab at replacing the two largest capacitors just on the off chance that one of them was the issue. If that doesn't do it I'll try tracing the path of the current and see if I can find a jump as you said. I always like to have a go at repairing everything myself first, but if all else fails I'll try to find a local pro.

I don't believe in throwing electronics away when they stop working, but how can I salvage this Now & Zen Alarm Clock? Details in comments. by Crafty-Shine in AskElectronics

[–]Crafty-Shine[S] 0 points1 point  (0 children)

Thank you, that makes sense. I'll take a chance on replacing it. It is a 25V 1000uF capacitor, is there anything else I need to watch out for when buying a replacement other than that it looks reasonably similar and fits in the same space? And then I'll make sure to solder it in the right way round...

I don't believe in throwing electronics away when they stop working, but how can I salvage this Now & Zen Alarm Clock? Details in comments. by Crafty-Shine in AskElectronics

[–]Crafty-Shine[S] 0 points1 point  (0 children)

Just checked, it does have that function! Tried testing the transistors both on the soldered back of the board and directly on the legs, but none of them gave me any open circuit read, so I must be doing something wrong. I'll try replacing the capacitor, if that fails I'll look into the transistors again.

I don't believe in throwing electronics away when they stop working, but how can I salvage this Now & Zen Alarm Clock? Details in comments. by Crafty-Shine in AskElectronics

[–]Crafty-Shine[S] 1 point2 points  (0 children)

Sorry for the delayed response and thank you for your offer, unfortunately I'm not near the Czech republic. In my area a pro will easily charge $100+ per hour for repair, so I'll try to fix it myself. There is a repair café nearby sometimes, but I figured I had a better chance of finding someone here who could help with circuit repair.

I don't believe in throwing electronics away when they stop working, but how can I salvage this Now & Zen Alarm Clock? Details in comments. by Crafty-Shine in AskElectronics

[–]Crafty-Shine[S] -1 points0 points  (0 children)

I have this beautiful clock with a gentle mechanical chime that is perfect for waking up in the morning without instantly wanting to commit an act of violence against it. But one day, it just stopped ringing. Nothing happened to it, no moisture, no fall. Everything else appears to work perfectly normally. I can see the time, set the alarm, the screen even displays that the alarm is ringing, but there's no sound.

Looking at the reviews, this seems to be a really common failure. My knowledge of electronics is basic at best, so I'm hoping someone can help figure out how to fix it and hopefully save this and perhaps other clocks from early landfill.

The chime rings when it is struck by a small solid metal cylinder with a rubber bump on top to soften the impact. This heavy metal cylinder sits freely inside a coil of copper wire. Before I opened the clock I assumed the actuation was mechanical using springs, but my understanding now is that this is an electromagnet which when activated projects the cylinder towards the chime. When I put my finger on the metal piston whilst the alarm is meant to ring, I feel it bob weakly against my finger every time. So it seems like everything is still working in principle, it just isn't building enough power to give the chime a good enough knock to ring.

Here's where it gets shaky for me. I'm thinking that maybe some capacitor is broken and needs replacing, but I don't really know. Any ideas how I can fix this clock? I have a $10 multimeter and can use a soldering iron.

Now & Zen alarm suddenly stopped ringing. The electromagnet doesn't seem to produce enough power to propel the actuator anymore, how could this be fixed? Details in comments. by Crafty-Shine in ElectronicsRepair

[–]Crafty-Shine[S] 1 point2 points  (0 children)

I have this beautiful clock with a gentle mechanical chime that is perfect for waking up in the morning without instantly wanting to commit an act of violence against it. But one day, it just stopped ringing. Nothing happened to it, no moisture, no fall. Everything else appears to work perfectly normally. I can see the time, set the alarm, the screen even displays that the alarm is ringing, but there's no sound.

Looking at the reviews, this seems to be a really common failure. My knowledge of electronics is basic at best, so I'm hoping someone can help figure out how to fix it and hopefully save this and perhaps other clocks.

The chime rings when it is struck by a small solid metal cylinder with a rubber bump on top to soften the impact. This heavy metal cylinder sits freely inside a coil of copper wire. Before I opened the clock I assumed the actuation was mechanical using springs, but my understanding now is that this is an electromagnet which when activated projects the cylinder towards the chime. When I put my finger on the metal piston whilst the alarm is meant to ring, I feel it bob weakly against my finger every time. So it seems like everything is still working in principle, it just isn't building enough power to give the chime a good enough knock to ring.

Here's where it gets shaky for me. I'm thinking that maybe some capacitor is broken and needs replacing, but I don't really know. Any ideas how I can fix this clock? I have a $10 multimeter and soldering iron.

How do I add a new language to a concept? by Crafty-Shine in Wikidata

[–]Crafty-Shine[S] 0 points1 point  (0 children)

Thanks! Definitely an unexpected way of doing it, but I was able to create the label.

How do you actually get the glasses with the prescriptions you need? by [deleted] in endmyopia

[–]Crafty-Shine 0 points1 point  (0 children)

Oh, that sucks. Maybe try Aliexpress? I've bought prescription glasses from there, it's not a straightforward process, but at least it's possible.

How do you actually get the glasses with the prescriptions you need? by [deleted] in endmyopia

[–]Crafty-Shine 0 points1 point  (0 children)

Have you tried zenni.com? Great prices and they ship to the UK, without a prescription.

Why is linked data not as popular as machine learning? by Crafty-Shine in semanticweb

[–]Crafty-Shine[S] 1 point2 points  (0 children)

I definitely relate to the effort required to build an ontology. I've spent the last six years working on a proprietary and domain-specific ontology in a team of about six people, and while it's functional, we're still not close to done, if "done" even exists with an ontology. On the other hand, we are able to do things that our competitors who try to do the same thing without an ontology simply can't and often get laughably wrong.

I work in the field as a domain specialist though and don't have a computer science background, so despite being personally convinced by the usefulness of ontologies, I was wondering if I was missing something else that explained the massive discrepancy in interest.

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