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Comment Re:What does Science have to say about this? (Score 1) 588

Telus does something similar in the larger cities up here. They put in a new cell tower, but leave it powered off/disconnected. Wait a couple of months for the lawsuits and complaints to start pouring in, then reveal that nothing is running yet. All the complaints stop and lawsuits are thrown out. A little while after that, they turn the cell tower on, without telling anyone. Seems to have cut down on the amount of time wasted in the court system for them. :)

Comment Re:Why? What advantages does this have over ZFS? (Score 1) 132

No, with dedupe enabled, ZFS runs best with 1 GB of ARC space (including L2ARC) for every TB of unique data in a pool.

With dedupe turned off, all data is unique, but then you need less ARC to manage it.

We have a couple of 40 TB pools running with only 32 GB of RAM without issues.

We also have a couple 96 TB pools running with 128 GB of RAM; one even has dedupe enabled and runs without issues.

And I've run it at home on a P4 system with only 2GB if ram without issues. Nursing from raidz1 using 160G drives, to raidz1 with 250G drives, to multiple mirror vdevs with 500G drives. Then from 32-bit FreeBSD to 64-bit FreeBSD, and finally to 1T drives (4 GB RAM). That's also my home desktop, Plex server, file server, etc).

You don't *NEED* a lot of ram to run zfs. But it will run better if you can add more into a system.

Comment Re:Wifi saturation? (Score 1) 152

Flat Ethernet cables are very easy to push under baseboards without using any tools. I've wired up several rooms in our house using those without any issues. Currently only running 100 Mbps switches, but the cables will support gigabit (Cate5e and Cat6 are available in flat versions on monoprice.com).

Comment Re:Bad Management (Score 2) 152

In our schools, we turned off 802.11g (or lower) support (802.11n or better required) completely. Network utilization and efficiency jumped 30%. We had under 20 devices across the school district that couldn't connect after that.

We also upped the multicast rate to 22 Mbps. This forces devices to reconnect to closer APs and switch APs when wandering around the buildings.

Unfortunately, the local cable company has been putting their free WiFi hotspots around the city, with the ones around our schools using directional antennas ... pointed directly at our schools! Plus, we have apartment and townhouse complexes next to most of our secondaries, so our APs can detect 50+ home APs. :(

Comment Re:More spectrum? (Score 1) 152

Except that with 802.11ac using 180 MHz wide channels, there's (again) only 3 non-overlapping channels. :(

Thankfully, the enterprise APs are smart enough to automatically/dynamically changes channel-widths as interference levels change, so you can stuff 3-15 APs in an area without causing too many problems. Still can't get more than about 50-odd student devices onto a single radio, though.

Comment Re:"Other types of electromagnetic radiation" (Score 2) 529

Follow-up studies are needed to see if the colour of the LED makes a difference. Try with green (usually used to show "traffic"), orange (sometimes used to show "traffic", or "link speed"), and blue (annoyingly used on things that need to be on in the dark). Maybe to really mix things up, throw in some purple or yellow or white as well. :)

Comment Landscape slider or GTFO! (Score 1) 113

If BB released a landscape slider phone running BB10, I'd be interested! BB10 intrigues me, but the hardware they've released so far doesn't; hard to justify a downgrade from an LG G2 just for an different OS. I want a keyboard, but not that badly.

If BB released a landscape slider phone running Android 5.x, I'd be even more interested! We need some hardware differentiation between OEMs. Right now, all Android phones are rectangular slabs with touchscreens. Whoop-de-doo! Bring back the hardware innovation, OEMs! You've stagnated. When 2-3 generations of phones are released with barely any changes in the design or the hardware, you know things are going downhill.

The next OEM to release a landscape slider with at least flagship-1 internal hardware (ie Snapdragon S801/S805 level) gets my business.

Comment Re:single, multi, triple (Score 1) 60

Also note that the number of available cycles per cell drops with the process density AND with the number of bits per cell.

In general, it is better to have dense, yet unreliable, storage, and then fix the reliability problems with higher level error correction and redundancy. This will often give you more capacity, and more overall reliability.

Or, you can do things better, and move to vertically-stacked, 3D NAND, like Samsung. Each individual NAND chip is built on a larger process (28 nm I think) providing better yields and endurance, but you stack 20+ chips vertically to provide more storage in the same die area. Best of all worlds: more P/E cycles, better yields due to mature processes, more storage in less space.

Planar NAND will be hitting a brick wall soon and won't be able to compete with 3D NAND. Samsung started the migration, but Toshiba and IMFT aren't far behind.

Comment Re:Why should I be excited? (Score 2) 51

Because Chromium isn't in the Google Play Store, so you can't "just get" it?

There's an unofficial, test, "use at your own risk", "untested" APK that one can download from the Chromium website and side-load onto their Android device. But that's a lot more difficult than just installing it via Play Store.

To downgrade the human mind is bad theology. - C. K. Chesterton

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