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Any zerofill software ought to be enough. Unlike magnetic disks, by their nature SSDs don't partially retain older data when sectors are overwritten. A cell is either a zero or a one. If you flip everything to zeroes, the old data will be completely gone beyond the ability of even the NSA to...

Translation: Hitachi sees magnetic storage as a dying technology and wants to sell off its disk division while they can still get something for it. In ten years time tops, magnetic disks will be as obsolete as CRTs are now.

Thanks Doug for the illustration. It neatly shows what time and I have been saying. Another thing I'm thinking here regarding the margins on gasoline also applies to hydrogen. Assuming the margins would be similar, then that's yet another nail in the coffin. I've seen a lot of gas stations...

I have all my hidden files visible in Explorer. Besides that, on the drive in question the only system folder is the restore folder, and that's empty. Anyway, it looks like I more or less figured out what's going on here. It seems when using the NTFS, Windows reserves roughly 1/8% of the...

Actually at about 300 miles range is probably a non-issue. 1000 miles would just by the icing on the cake. By the time most people drive 300 miles, they'll be stopping at least 30 minutes to eat/use the restroom. We'll certainly have 30 minute fast recharge at rest stops once enough people...

SD, it all depends upon how far you regularly travel. If most of your trips are within the range of the Leaf's battery, then it probably makes sense. You could just rent a gas car for the few times a year where range is an issue. On the other hand, if you regularly make trips exceeding the...

Yeah, water basically recycles in the ecosystem, so we never really "use it up". We can get all the fresh water we want from desalizing seawater, provided we have an energy source to do so. That's really the crux of the problem-we don't have an abundant enough source to start desalinating...

Well, I never said petrol was safer than hydrogen. In fact, if petrol were something brand new, I would guess we would be prohibited from using it in vehicles. That picture reminds me why I pretty much avoid car travel, and totally avoid plane travel. :eekers: Putting aside whether or not...

Is the 11TB array empty and freshly formatted? If so, then check the free space and used space. Now copy any file into the array, and delete it. After that either restore it, or empty the recycle bin. If your system is behaving like mine, then you'll suddenly see less free space. Since the...

Except that the deleted file here was only a few kB, and I suddenly lost 2.44GB of space after I either restored it, or emptied the recycle bin.

According to both chkdsk and defrag, the MFT isn't taking a huge amount of space. The MFT is only using about 128MB on the 2TB drive. Rather, it appears by default that Windows considers roughly 1/8% of the drive space to be "used" for recycling purposes when it reports the amount of free...

Ugh, it seems this behavoir is normal. I just checked one of the partitions on my 200GB drive. Total space is 150,271,983,616 bytes. Windows reports the free space as 102,551,552 bytes. However, chkdsk reports 289,656,832 bytes available on disk. The "missing" space is 187,105,280 bytes, or...

That's what it looks to me like it's doing.

The controller shouldn't need heatsinking. Typically my LED drivers are 90% to 95% efficient, depending upon how close the LED string voltage is compared to the input voltage. As such, you're usually talking about a watt or so of heat in the controller. Making the candles out of aluminum rod...

Well, I think I partially solved it, or at least found out what's behind the problem. After reformatting the disk, my free space was back to 2,000,270,127,104 bytes. I tried deleting and then restoring a file from my other hard disk. After I restored it, I noticed that the free space on the...

It all depends upon what voltage the charger sends to the vehicle. Of course, there's probably an upper limit on that for safety reasons. Offhand, I would probably say about 2000 volts. Reasonably-sized conductors ( about the size of jumper cables ) might be able to carry 500 amps, so you...

If you can take a few pictures of it that would be nice. I basically want to get some idea of how much space I have to work with where the emitters will go. Also, this will let me figure out heatsinking options ( i.e. size, shape, etc. ).

Here is a great cost analysis of FCV versus BEV: http://www.metricmind.com/data/bevs_vs_fcvs.pdf Even not accounting for the cost of FC infrastructure, BEVs unsurprisingly come out ahead.

I also forgot to mention in my last post that I do in fact see a great role for hydrogen fuel cells-basically as energy storage to smooth out the intermittant power generation of renewables like solar or wind. This is where they shine. Their inefficiency compared to a battery doesn't matter...

Their math is WAY off. A typical BEV battery pack for 150 mile range is about 30 kW-hrs. Let's say the charging efficiency is about 85%. Therefore, you need to pump about 35 kW-hrs into it. To do that in 5 minutes you need a charger which can deliver 420 kW. With a 150 kW level 3 charger you...

That shouldn't present a problem. I agree you probably need to have all ten light sources flicker randomly and independently for good effect. I'll have to think whether and how this can be done with minimal complexity. Actually, probably closer to 1900K. The idea of using both amber and...

Despite all the hoopla about fusion as the ultimate power source of the future, the truth is pretty depressing. Especially sobering is the fact that starting up a single commercial fusion reactor will require more tritium than currently exists on Earth. Sure, deuterium fusion is a better...

At this point the idea of battery swapping is dead. I wouldn't care for the idea anyway for the reason SD mentioned. Today's batteries can charge in 5 minutes given a suitable charger. As electric cars comprise a greater percentage of vehicles owned, doubtless you'll see gas stations also...

Do you have space inside the chandelier to fit a couple of 1" x 1" x 1" boxes? That's all we'll need for the internal electronics. All you'll need coming out of the top is a pair of wires to hook up to the power supply. This will need its own controls. A standard lamp dimmer will only work...

Nothing wrong at all with that idea other than the added cost of the bank of batteries. I'll go one step better, however. It makes even more sense if you can dual purpose the home battery bank. The majority of the time fast home charging probably is just not needed, but I can see people...

Exactly what would you want me to try here? I'm not really resisting your suggestion. I just don't know any other method here to compare folders than the one I used. I you tell me step by step what you want me to do, I'll gladly do it. I only have two data folders on the drive in question...

I've surface tested the drive about a dozen times already. All is well. I used diskpar to partition the drive. Maybe I should do it over with diskpart and see if the problem reappears? I just have to figure out the parameters to use with diskpart to start the partition at sector 64 instead...

The difference between the used space of the folders between the compressed and non-compressed drives is minuscule. For example, one folder used 15,148,750 bytes more on the uncompressed drive than on the compressed drive. I'm using 4K allocation units on both drives. Also, the page file is...

All I copied so far were two DVDs I ripped. Yes, the original folder had compression while the new folder didn't. However, since these were already video files with built-in compression, they don't compress much. They take about about 0.01 GB more on the uncompressed drive. Here's the...

Yes, hibernate is off, the recycle bin has no reserved space, system restore is turned off on this drive. I don't really know anything about shadow copy, but it looks like it's off. Any other ideas here? Lunar, my beef with the whole base2 thing is we already have conventions for it-KiB...

I was talking about the way he stacked the drives before he put them in the enclosure. Why didn't he just leave them in whatever container they came in until he was ready to mount them?

I got nervous just looking at the way those hard drives were stacked. And then of course they're also on a carpet with all the attendant static discharge problems. :erm: I'm amazed how many people are unaware of how to properly handle hard drives. 70TB? I couldn't fathom filling that much...

From what I've read, XP 32-bit should be able to handle drives up to 2^32 sectors. With 512-byte sectors, that's 2,199,023,255,552 bytes. I've read of a few cases of motherboards which couldn't handle even 1 TB drives. My A7N8X-E was one of them, but I updated the BIOS. It had no problem...

I purchased a Samsung F4 2TB drive about a month ago. Generally, before using a drive, I'll let it burn in a while and also surface scan it a number of times. No problems there, but it seems the drive is reporting its free space incorrectly. The free space is correct after I format the drive...

It's been hard to get back to this point given the number of years of not riding much. Thankfully so far my body has cooperated with me, more or less. I had leg cramps a lot earlier this year. Diet may have partially been at fault for that though. Now my main "problem" is my output seems to...

That's pretty much what I do. I have 10 cogs in back ( 11-12-13-14-15-17-19-21-23-26 ) and three ( 30-42-52 ) in front. I find using the middle one in front is fine 99% of the time. The only exceptions would be a long uphill steeper than about a 5% gradient ( rarely encountered where I ride...

I know it's comparing apples to oranges but I've cycled 8862.4 miles over the same time period. And BTW, that total is pathethic for me but I've gotten back into cycling lately. Total for 2010 not including today ( because I didn't ride yet ;) ) is 2359.3 miles. Might break 3000 miles this...

I've had one for about a month now. Nice drive. Picked it up for $99.99 with one of Newegg's promotions. Runs about 9 or 10 degrees cooler than my 200 GB 7200 RPM drive. I'm getting transfers averaging 30 MB/sec between drives ( limited mostly by the slower read speeds on the 200 MB ). When...

I've had my 2TB F4 for over a week now with no problems to report. Yes, STRs are blazingly fast. Even though my M/B only has SATA 150, average STR over the entire disk is around 100 MB/sec ( the interface is bottlenecking STRs to ~115 MB/sec ). On the inner tracks STR is about 65 MB/sec...

So am I. And surprisingly, I haven't had to replace the caps-yet. In a bit of irony though I came very close to bricking the M/B while flashing the BIOS. We had two tornadoes touch down in NYC on 9/16-one in Brooklyn, the other in Flushing. About a minute or two after I flashed the BIOS...

Well, I purchased the 2TB Samsung I linked to earlier. It turns out Newegg packed it well, and it works fine. I had to update the BIOS in my M/B to keep the system from hanging while it was trying to detect the drive ( see description of the procedure here ). Also, to partition the drive I...

Just storage. I'm nearly out of space on my 200 GB drive. I'll leave the 200 GB for the boot drive for now. Down the road, maybe next year, I plan to buy an SSD, and will image the old OS install to boot from it.

I have a similar question as Doug. I'm thinking of ordering this 2 TB Samsung now that Newegg hopefully fixed the packaging issues. Sweet deal at $99.99 shipped with the promotion code. Only possible issue is it's using 4K sectors with 512 byte emulation. Would this cause any performance or...

Great news to me! At least they finally acknowledged the problem.

In NYC technically you're not even allowed to do electrical work unless you're licensed electrician. That even includes stuff like changing an outlet or a fixture. In practice it doesn't matter so long as it's done to code. Generally when you sell a house it will require inspection, including...

If you didn't have dimming requirements I would suggest flush mount T8 fixtures. Tubes are cheap, readily available in all color temperatures, available in high-CRI, and very efficient. The light distribution is uniform without the harseness of cans. The only downside is dimming in not...

If it's like the Romison I have, then the driver board is soldered to the heat sink and fairly easily removed for examination. If you can get the board out without too much trouble, then attempt a repair. In all likelyhood the bad part is either a MOSFET or Schottky diode. Don't spend too...

This is interesting although truth is from reading between the lines it may be a long time before any drives based on this technology, or any other new technology, reach the market. Another problem we're already seeing from ever higher areal densities is lower reliability. It seems the failure...

The driver on some of those early Romisons was flaky. They used components which IMO weren't up to the task. What probably happened is one of the parts went, most likely either the Schottky diode or the MOSFET. End result would be the light either doesn't work at all, or comes on dim. The...

I would hook a VCR to a TV card using the A/V inputs. That should avoid the signal degradation issues you mentioned. No idea of what TV card to get. I'll probably start a thread on that when I'm ready to buy. I'm really looking for something which has YPbPr as well as A/V inputs so it can...