Work reviews - like code reviews. Everyone "shows their work" to everyone else, and everything gets reviewed, every week. Less optimal than individual workers working at peak efficiency, but more optimal than most people screwing around with no oversight whatsoever.
It appears to use a lot of memory because it replaces the standard kernel disk cache with its own ARC, and as unused memory is wasted memory, the ARC will eat up every last bit of memory you allow it.
Well, I had 4GB of RAM, the cache ate up every bit of it and didn't run particularly well.
It's performing a checksum of your entire system. That's going to be a CPU hog. BTRFS will be no different in this regard.
Very true, but if CPU usage is a factor, on an app server say, then choosing ZFS is hardly a "no-brainer" as the OP stated.
Of course it does. It just has some limitations.
Right - what I was looking for is the ability to simply add a drive to a pool and get more drive space. With btrfs RAID1, which is what I'm using, you throw a drive in, hit rebalance, and you now have more storage, properly mirrored with distributed metadata.
- CPU and RAM overhead comparable to Software RAID 5.
In my experience it needs a lot more memory than software RAID5. Something like 1GB per TB of disk space if running RAIDZ. Scrubbing can thrash your CPU pretty good, too.
I ran ZFS for a while on a dedicated file server with a fair amount of disk space (16TB) but switched over to btrfs RAID1 as my hardware wasn't up to ZFS requirements, and I needed the capability to add new drives to the pool which ZFS doesn't handle gracefully.
Relatively speaking - computing power is cheap these days. You can build a server with more computing power of Google's first server farm for a few thousand dollars. You can virtualize everything and rent CPU power from Amazon or Rackspace or Microsoft. If you're working out of your garage you can start up a new search engine for a couple tens of thousands of dollars which, really, is hardly anything these days.
Same goes with the back-asswards CAFE standards. Want more fuel efficient vehicles on the road? Tax gasoline. But no, an insanely complicated average fuel economy-per-vehicle-segment over general fleet sales is imposed. More politically expedient, MUCH less efficient.
My smartphone does everything already. Pulling it out of my pocket to look at it isn't such an ordeal. I already have a watch that tells the time and date, and it goes for years on a battery.
Butcoin was supposed to be money, but so far it's far to volatile to be used as a unit of account in any serious sense.
Using it as a a unit of account is a regulatory definition, not an economic one. Money is still money even if there is no concept of "Bookkeeping."
Volatility doesn't enter in to the equation, during the Weimar republic the Mark was still the currency of Germany, even though hyperinflation made it essentially worthless. Just because it isn't a good store of value doesn't mean it isn't a store of value. What matters is it's ultimate utility to the users.
Money is anything that can be used to store or trade value. Anything *can* be money, but that doesn't mean it is.
If people are buying bitcoin, then trading it for goods, services, or other forms of money, then, de-facto, it's money.
It's easy to complain about how awful malls are until you have to walk around outside when it's 105F out, or when it's -5F with two feet of snow on the ground.
We lost the backups. Her computer drive was taken apart and recycled into a crib mobile for underprivileged infants. We had printouts but those were shredded into organic compost. The tape backups were overwritten as we only have one backup set of tapes. The people who sent her the email also deleted them from their "sent" boxes as they only have 5MB of quota for that mail box. The people who received her email deleted them from their inboxes as we rigorously practice inbox zero.
So you see, no monkey business here.
That's just mostly how the current companies handle it. Safety recalls have happened with Tesla. They've simply used company techs to do the work by picking the vehicle up from your house/work if the fix can't be done on the spot, sometimes delivering a loaner vehicle.
This works great when you have a few thousand vehicles on the road. When you have a few hundred-thousand cars all over the country, sending techs out to everyone's home is going to bankrupt you.
I really liked Mims's electronics books, but I can't respect him as a scientist when he misrepresents the theory of evolution and proposes (essentially) intelligent design instead. It's a damn shame.
I'd argue that you can still respect him as a scientist. Most scientists get things wrong - it doesn't negate their other accomplishments. Linus Pauling thought that most diseases, including cancer, could be cured through Vitamin C supplements (it apparently didn't work as he died of cancer.) Tesla discounted the theory of Relativity and bought into Aetherism for decades after the former was widely accepted and the latter was completely disproved.
I wouldn't call a disposable aluminum battery the "cutting edge" of technology.
This article brought to you by the taxi cab and hotel industries.
Remember, competing with established business interests is for losers.
There hasn't been a root exploit in XP for a couple of years now, which means if you are running as a user and not root, and you know what you are doing, XP should be fairly safe.
1. Run as a regular user and only elevate permissions when you need to
2. Make sure your directory permissions are locked down properly (there are guides to help you do this)
3. Turn off all unnecessary services
4. Run a 3rd party antivirus app - BitDefender Free is excellent
5. Regularly run rootkit detectors and a second on-demand scanner (I use Trend Micro)
6. Don't use IE, use Firefox with NoScript turned on
7. Don't use Flash, Adobe Reader or Java. Use Sumatra PDF for PDF viewing.
I keep a VM of XP around for running some old apps and reading my junk email account. I've been sent virii and all sorts of junkware, and running the above config is pretty impervious to anything thrown at me. I can revert the image to it's original state if something bad happens, and I've yet to have to do that.