LED fixtures are worth it, LED edison base bulbs (replacement bulbs) are not. So new installations get LED, but old ones are not retrofitted.
I don't know -- I just picked up a screw in LED bulb from Walmart for just over a couple bucks, about the same price as CFL. And I was surprised at how bright it was. Just wondering how long the electronics in it will last.
Those cheap LEDs have a CRI of around 80, you can get a CFL with that low of a CRI for under a dollar.
The LED has no advantages over the CFL, just extra cost, with no benefit.
I find it surprising that most people aren't recognizing that SSDs don't even need to come close to price parity to completely replace hard drives. Random access alone makes them so much more valuable, and a good SSD is now worth more than extra memory in terms of increasing the performance of a computer system.
> I used to have some massive programs installed, a lot of digital media and video games at one point. Now Steam / GOG / Blizzard "stores" my games when not in use. Google / Apple / Pandora / Spotify "stores" my music. Amazon or Netflix "stores" my movies. How sustainable is this for the average consumer with most national ISPs moving towards bandwidth caps? I had to switch to business service because Netflix alone w…
> most national ISPs Which nation are you talking about? I suppose I'd guess US but it would help if you said. I'm still getting uncapped broadband (albeit with vague TOS provisions) in the UK. I think the rest of Europe is probably similar. For the record - I'd like to move towards metered billing - but with a realistically low price per GB - not a punitive one based on profiting from people that don't have the know…
I'd be curious to know why you would prefer a metered approach when, as you say, for that same price you get uncapped.
It seems to me that most people, in the US anyway, would rather not have caps. I can honestly say this is the first time I've heard anybody say they would, for the same price, prefer a cap.
For the record, 20Mbps for £20 is roughly similar to what our local cable monopoly offers in NC.
Cheapest 1 TB SSD on Amazon: $350 Cheapest 1 TB HDD on Amazon: $40 Expecting a 10x drop in prices in 1 year is ludicrous. Even if the prices follow a pseudo Moore's law and fall by half every 18 months, you're looking at at least 5 years before they reach parity. And in the meantimg HDDs would have gotten cheaper; so expect even more time for parity. In other words: ain't happenin' in 2016.
Great point, although we should also talk about the way storage use has shifted. I used to have some massive programs installed, a lot of digital media and video games at one point. Now Steam / GOG / Blizzard "stores" my games when not in use. Google / Apple / Pandora / Spotify "stores" my music. Amazon or Netflix "stores" my movies. When I ran an HDD, I wanted a TB. Now that I'm running SSDs, 80 GB seems to meet all…
I think you should have put "my games" and "my music".
Does the SSD actually use this unformatted space? I know that SSDs from the factory have a lower available space than their nominal space, to account for the eventual dimishing quanitty of functional floating gate transistors (ie 240GB is made available in a 256GB drive), and that OSes usually recommend keeping about 10% of the formatted drive free (for paging iirc). Didn't know that about unformatted space.
I may be wrong, but I'm fairly certain that on SSDs the wear leveling is done over the entire flash capacity. the details of where data is stored are an abstraction layer on top of that unlike on a spinning metal hard disk where specific regions of the drive are allocated to particular partitions
Wear leveling is done in the layer that translates between LBAs and actual physical chip numbers and addresses. Drive partitions are well above all of that in the abstraction stack, and partition tables are totally beyond the scope of a drive's concern (even for spinning rust drives). These days it is even common for a drive to have two different partition tables in two different formats with different partitions listed. Bootloaders and operating systems are the only things that should care about partitions.
You're not wrong, but if you look at the problem that Glacier is trying to solve then it doesn't look so bad: 1. Glacier is competing with tape. So for potential customers, if it's easier to acquire and maintain than your own tape library then that's a win. 2. In the words of James Hamilton the use case for Glacier is referred "jokingly to as Write Only Storage". If you're using Glacier for disaster recovery then pay…
I guess you've got a good point as far as #3 goes; the analysis is actually more interesting than I thought it was. Both Google's nearline storage and Glacier scale your retrieval capabilities proportionally to how much data you have stored with them. You can express it as a tradeoff between cost/GB and the time taken to retrieve your entire dataset Google throttles your downloads to a fixed rate, so they're effectiv…
Honestly it's hard for me to imagine a total emergency restore-EVERYTHING situation that needs the data in under a day.
If it's not that much data you should have a local copy anyway. If it's massive amounts of data is your connection even that fast? And how did you wipe 50 servers at once?
Cheapest 1 TB SSD on Amazon: $350 Cheapest 1 TB HDD on Amazon: $40 Expecting a 10x drop in prices in 1 year is ludicrous. Even if the prices follow a pseudo Moore's law and fall by half every 18 months, you're looking at at least 5 years before they reach parity. And in the meantimg HDDs would have gotten cheaper; so expect even more time for parity. In other words: ain't happenin' in 2016.
When you factor in depreciation, 1TB of HDD is conservatively worth half of what 1TB of SSD is worth.
And judging from the reliability figures I'm hearing, it's more like a 1/10 multiplier and SSDs already outpace HDDs in value.
> I used to have some massive programs installed, a lot of digital media and video games at one point. Now Steam / GOG / Blizzard "stores" my games when not in use. Google / Apple / Pandora / Spotify "stores" my music. Amazon or Netflix "stores" my movies. How sustainable is this for the average consumer with most national ISPs moving towards bandwidth caps? I had to switch to business service because Netflix alone w…
Here in Australia, where data caps have been the norm for, oh, forever, it's pretty sustainable (for now). Music streaming is notionally the same cost as reading an image-heavy website: negligible, in the scheme of things. Video streaming is again not that bad, because I can only watch so many videos... they take real time to consume. YMMV depending on your chosen resolution. Games are the main problem. When one of t…
Yeah, when GTA V came out, I waiting until 'off-peak' to use the 100G of data there, rather than waste my daytime allocation. Rarely would we hit our max usage though... thanks to appalling internet speeds. :)
Citation? I've seen math that all LED bulbs provide a better return in saved energy costs over the S&P500.
Better return compared to incandescent, but a worse return compared to CFL. Comparing to incandescent is quite disingenuous. The bulbs just cost too much today, and the heat problems (i.e. much lower lifetime) are not fully solved, they work in some fixtures and not in others.
Cree LEDs have a 20 year lifetime, and a 10-year limited warranty.