Forgive my ignorance, but how do I use AoE to provide high speed block devices to Windows systems?
I don't want to export them by CIFS or NFS because it is too slow. I want direct access to the devices from Windows boxes. iSCSI gives me this because ZFS (or Linux for that matter) can export iSCSI and Windows can "import" it as a block device.
The description of AoE sounds like it may be faster and easier than iSCSI, but how do I access it from a Windows machine?
> I cant really see why one would bring up ZFS and OpenSolaris for this purpose
Here's why: 1) Snapshots. ZFS lets me make lots of snapshots to protect myself from user error, viruses, etc destroying my data. ZFS snapshots are so lightweight that I can make them hourly at nearly no cost in time and disk space. 2) Data integrity. Even RAID-5 can allow some errors to creep into my data (google: bit rot). ZFS has a much higher level of data integrity protection. 3) Cost/Performance. ZFS RAID-Z appears to be much faster than software RAID-5. it appears to be even or faster than hardware RAID-5. Hardware RAID-5 is much more expensive than software.
I am the original poster, and I am not actually a typical user. I routinely work with files that are 100 GB - 300 GB each. Just copying one file from drive to drive takes hours. I have about 4 Terabytes in use, with another 4 Terabytes for backup.
My usage is the exact opposite of database usage (which most storage is optimized for). I need to copy huge sequential files. I rarely need many small reads or writes.
Because of the long times it takes to move these files around, I think NFS or CIFS would be too slow. That's why I am interested in the ability of ZFS to easily export iSCSI targets. Some tests I read showed that ZFS exporting iSCSI is about 4 times faster than ZFS exporting NFS or CIFS.
I am comparing to drives directly attached via eSATA, so it's got to be fast to come anywhere close to what I get with eSATA.
> Saving 47K on a SAN is great, unless it breaks 3 years from now and your company is out of business 3 days waiting for a replacement motherboard off Ebay
Well that just doesn't make sense. If I am saving $47K I can certainly buy a couple of spare sets of the entire $1200 system. If the motherboard croaks I just move the drives to a spare system. 30 minutes, not 3 days.
> Well, I check Slashdot like every 2 minutes to check and read stories. I think that kills my concentration more than email.
No kidding. I changed my email from check-every-30-seconds to check-every-30-minutes to stop it from interrupting my chain of thought. But ironically (and stupidly) my fingers mash control-R (reload/refresh) on Slashdot constantly. I might be reading a paper on my desk and without even thinking my fingers reload and I glance at the screen...
Then to make matters worse, I read some totally unimportant post and must post an equally unimprtant reply. *sigh*
> wouldn't this type of reproduction completely eliminate the possibility for evolution ?
Not completely. Clearly the ability to reproduce sexually EVOLVED from organisms that existed before sexual reproduction. But correct in that asexual reproduction can only evolve through extremely slow random mutations. Sexual reproduction allows a very fast way to 'try all the variations' of a gene pool and thus find local optimums for existing conditions.
I imagine that sexual reproduction, for example, allows a species to take a few light sensitive cells and evolve them into a well placed bulb. However that first jump from not light sensitive at all to light sensitive seems like it had to be a random mutation that repurposed some of the processes behind photosynthesis into light-detection.
There have been hints that some organisms can do some "splicing" of genes encountered in the wild, for example some plants can somehow incorporate fragments of DNA from completely unrelated plants that happen to be nearby. If those genes included Monsanto patented genes the mutation incredibly includes a team of lawyers attached to the insertion site.
I think the bigger question than 'is there free will' is: Does the internal process used to determine behavior matter, if the end result can be thought of as a black-box. In other words, if an entity behaves a certain way (random, non-random, semi-random, predictable, unpredictable) but it is impossible to tell if the internal process generating that behavior is using free-will, computations, soul, hampsters-running-on-wheels, then DOES IT MATTER?
How do you define free-will if the result of free-will and non-free-will are indistinguishable? Is there a difference?
Can there be a difference?
Someday the question will be more than theoretical if and when we build an artificial intelligence that swears he thinks, therefore he is. How is his "fake" being any different from our "real" being if there is no external difference?
ME: Called Dell support. ME: Asked 'Here is my service tag#. Does my motherboard support hot-swapping SATA/eSATA drives?' DELL: Your problem is a bad motherboard. We will ship you a new one.
ME: WTF? They called me for the next three days trying to schedule an on-site engineer to swap my motherboard, even though I kept telling them I don't have a problem with my motherboard.
> Hollywood only cares about quality product to the extent that they need the occasional quality product in order to keep the cash pouring in.
Even further, Hollywood is compelled to continue making sequels until they are so bad they stop making money. It is the only way to insure they have extracted all the money possible from a franchise.
Humans (and animals) are constantly scanning their environments, usually subconsciously. One input that instantly grabs our attention is someone staring at us.
So if someone has not noticed the 'bush' slowly moving towards them because it has not registered on their conscious mind, the presense of two eyes staring at them from under the 'bush' will trigger alerts and raise the awareness of that input to a conscious level.
Comes from millions of years of lions and tigers and bears sneaking up on us. (ok, well bears don't bother sneaking... but you get the idea)
> Before you go and insult the bible, I suggest you read it. Love is more powerful than any of those things.
I didn't insult the Bible. I pointed out that it is full of examples of the worst in human nature. Despite this it is considered one of the most important works in human history. My implication is that perhaps this student's writing shouldn't necessarily get him arrested. Perhaps his writing could be an attempt to reveal or exorcise some of the darker impulses of human nature that are floating around in many people's consciousness particulary right now due to the events at Virginia Tech. She could have called the school psychiatrist to speak to the kid and see if he needed help, or if he was dangerous, or if he was a writer finding his literary voice in a free-writing exercise. Instead she got him arrested. If he needed help, he is more alienated and alone than ever; If he was dangerous he is more so now; If he is a budding writer he will be afraid to let his voice be heard. If she was teaching a creative writing class 2,000 years ago and read a draft of the Bible she would have had the writer arrested.
> The new evil ill in our society will be plays and essays
Yeah, I read this one that had witchcraft, rape, incest, slavery, prostitution, murder, cannibalism, ethnic cleansing, baby killing, and strange religious cults. It was called the Bible.
> Well, what's the matter with research? Are we going to kill scientist next for saying there is global warming caused by man?
That statement is so daft, I am probably falling for a troll, but I'll bite. If a researcher commits a crime in the process of his research, yes he will be arrested and prosecute him. So reading weather balloons, not so much. Downloading child porn will reading weather balloons, yes.
> Or are we going to round up the law enforcement in this investigation since they saw or had contact with child porn? There are strict rules about who can view child porn in the course of an investigation. As a private investigator I cannot investigate a child porn case. I must call law enforcement as soon as I see that there is child porn involved in a case.
Here's a good one: Take a screen capture of a screen with lots of open windows, preferrably the ones someone usually leaves open. Make that the desktop background. Close all the real windows. Enjoy.
> Any machine intelligence worth its salt (silicon?) would give the answer "2" when asked to calculate PI to the last digit (rounding errors may apply).
I don't get it. If you had said '"3" (rounding errors may apply)' I would get it. If you are just saying any wrong answer, you might as well have said 4 or 42.
I will compare any 100 parents drawn at random against 100 orphanage governesses, social workers, even day-care teachers any day. Or choose any other representative of government 'caring' for children.
> Even the.380 Kel-tec P3AT can fit in a jeans pocket without bulging
I can't count the number of times my cell phone has randomly dialed someone or gone into the web browser simply from being leaned on in my pocket. And that's with the 'safety' (keypad lock) on. If my cell phone had been a gun, I'd be sporting some stigmata by now.
Slashdot Mirror
Forgive my ignorance, but how do I use AoE to provide high speed block devices to Windows systems?
I don't want to export them by CIFS or NFS because it is too slow. I want direct access to the devices from Windows boxes. iSCSI gives me this because ZFS (or Linux for that matter) can export iSCSI and Windows can "import" it as a block device.
The description of AoE sounds like it may be faster and easier than iSCSI, but how do I access it from a Windows machine?
> I cant really see why one would bring up ZFS and OpenSolaris for this purpose
Here's why:
1) Snapshots. ZFS lets me make lots of snapshots to protect myself from user error, viruses, etc destroying my data. ZFS snapshots are so lightweight that I can make them hourly at nearly no cost in time and disk space.
2) Data integrity. Even RAID-5 can allow some errors to creep into my data (google: bit rot). ZFS has a much higher level of data integrity protection.
3) Cost/Performance. ZFS RAID-Z appears to be much faster than software RAID-5. it appears to be even or faster than hardware RAID-5. Hardware RAID-5 is much more expensive than software.
I am the original poster, and I am not actually a typical user.
I routinely work with files that are 100 GB - 300 GB each.
Just copying one file from drive to drive takes hours.
I have about 4 Terabytes in use, with another 4 Terabytes for backup.
My usage is the exact opposite of database usage (which most storage is optimized for).
I need to copy huge sequential files. I rarely need many small reads or writes.
Because of the long times it takes to move these files around, I think NFS or CIFS would be too slow. That's why I am interested in the ability of ZFS to easily export iSCSI targets. Some tests I read showed that ZFS exporting iSCSI is about 4 times faster than ZFS exporting NFS or CIFS.
I am comparing to drives directly attached via eSATA, so it's got to be fast to come anywhere close to what I get with eSATA.
> Saving 47K on a SAN is great, unless it breaks 3 years from now and your company is out of business 3 days waiting for a replacement motherboard off Ebay
Well that just doesn't make sense. If I am saving $47K I can certainly buy a couple of spare sets of the entire $1200 system. If the motherboard croaks I just move the drives to a spare system. 30 minutes, not 3 days.
> Well, I check Slashdot like every 2 minutes to check and read stories. I think that kills my concentration more than email.
No kidding.
I changed my email from check-every-30-seconds to check-every-30-minutes to stop it from interrupting my chain of thought. But ironically (and stupidly) my fingers mash control-R (reload/refresh) on Slashdot constantly. I might be reading a paper on my desk and without even thinking my fingers reload and I glance at the screen...
Then to make matters worse, I read some totally unimportant post and must post an equally unimprtant reply. *sigh*
> wouldn't this type of reproduction completely eliminate the possibility for evolution ?
Not completely. Clearly the ability to reproduce sexually EVOLVED from organisms that existed before sexual reproduction. But correct in that asexual reproduction can only evolve through extremely slow random mutations. Sexual reproduction allows a very fast way to 'try all the variations' of a gene pool and thus find local optimums for existing conditions.
I imagine that sexual reproduction, for example, allows a species to take a few light sensitive cells and evolve them into a well placed bulb. However that first jump from not light sensitive at all to light sensitive seems like it had to be a random mutation that repurposed some of the processes behind photosynthesis into light-detection.
There have been hints that some organisms can do some "splicing" of genes encountered in the wild, for example some plants can somehow incorporate fragments of DNA from completely unrelated plants that happen to be nearby. If those genes included Monsanto patented genes the mutation incredibly includes a team of lawyers attached to the insertion site.
> may have already passed through all of them.
Well, since we don't have any self-sustaining colonies off of the Earth, I'd say there is at least ONE difficult step we haven't passed yet.
I think the bigger question than 'is there free will' is:
Does the internal process used to determine behavior matter, if the end result can be thought of as a black-box. In other words, if an entity behaves a certain way (random, non-random, semi-random, predictable, unpredictable) but it is impossible to tell if the internal process generating that behavior is using free-will, computations, soul, hampsters-running-on-wheels, then DOES IT MATTER?
How do you define free-will if the result of free-will and non-free-will are indistinguishable? Is there a difference?
Can there be a difference?
Someday the question will be more than theoretical if and when we build an artificial intelligence that swears he thinks, therefore he is.
How is his "fake" being any different from our "real" being if there is no external difference?
Here's my anecdote:
ME: Called Dell support.
ME: Asked 'Here is my service tag#. Does my motherboard support hot-swapping SATA/eSATA drives?'
DELL: Your problem is a bad motherboard. We will ship you a new one.
ME: WTF?
They called me for the next three days trying to schedule an on-site engineer to swap my motherboard, even though I kept telling them I don't have a problem with my motherboard.
> Hmmm, maybe Apple noticed that alot of their super secrets were showing up on engaget
So they immediately thought, "Let's use this to trash our own stock price! Yeah! That'll show 'em"
> I don't watch TV. I wish others wouldn't.
I was warned about you.
> played D&D and cried
> seduce the hottest girl in school
Non-sequitor! Error! Paradox encountered! Cannot reconcile! Daisy... daisy... give me your answer true...
> Hollywood only cares about quality product to the extent that they need the occasional quality product in order to keep the cash pouring in.
Even further, Hollywood is compelled to continue making sequels until they are so bad they stop making money. It is the only way to insure they have extracted all the money possible from a franchise.
Here is my explanation for the 'sixth sense'.
Humans (and animals) are constantly scanning their environments, usually subconsciously.
One input that instantly grabs our attention is someone staring at us.
So if someone has not noticed the 'bush' slowly moving towards them because it has not registered on their conscious mind, the presense of two eyes staring at them from under the 'bush' will trigger alerts and raise the awareness of that input to a conscious level.
Comes from millions of years of lions and tigers and bears sneaking up on us. (ok, well bears don't bother sneaking... but you get the idea)
> Before you go and insult the bible, I suggest you read it. Love is more powerful than any of those things.
I didn't insult the Bible. I pointed out that it is full of examples of the worst in human nature. Despite this it is considered one of the most important works in human history. My implication is that perhaps this student's writing shouldn't necessarily get him arrested. Perhaps his writing could be an attempt to reveal or exorcise some of the darker impulses of human nature that are floating around in many people's consciousness particulary right now due to the events at Virginia Tech. She could have called the school psychiatrist to speak to the kid and see if he needed help, or if he was dangerous, or if he was a writer finding his literary voice in a free-writing exercise. Instead she got him arrested. If he needed help, he is more alienated and alone than ever; If he was dangerous he is more so now; If he is a budding writer he will be afraid to let his voice be heard. If she was teaching a creative writing class 2,000 years ago and read a draft of the Bible she would have had the writer arrested.
> The new evil ill in our society will be plays and essays
Yeah, I read this one that had witchcraft, rape, incest, slavery, prostitution, murder, cannibalism, ethnic cleansing, baby killing, and strange religious cults.
It was called the Bible.
> the country plans to sweep the low end of the market by offering the lowest cost
Oh great. I just switched careers from programming to aerospace because my programming job was outsourced to India.
Porn industry, here I come!
A friend of mine is a new cop. A bunch of us were sitting around and he pulled out his gun and was showing it off to everyone. Waving it around.
Idiot.
And he's been trained.
Imagine the idiots who haven't gotten any training.
> The likelihood of knocking a UAV out of the air with small arms is pretty slim
Well, it won't be from lack of trying when it floats over East LA.
> Well, what's the matter with research? Are we going to kill scientist next for saying there is global warming caused by man?
That statement is so daft, I am probably falling for a troll, but I'll bite.
If a researcher commits a crime in the process of his research, yes he will be arrested and prosecute him. So reading weather balloons, not so much. Downloading child porn will reading weather balloons, yes.
> Or are we going to round up the law enforcement in this investigation since they saw or had contact with child porn?
There are strict rules about who can view child porn in the course of an investigation. As a private investigator I cannot investigate a child porn case. I must call law enforcement as soon as I see that there is child porn involved in a case.
Here's a good one: Take a screen capture of a screen with lots of open windows, preferrably the ones someone usually leaves open. Make that the desktop background. Close all the real windows. Enjoy.
> Any machine intelligence worth its salt (silicon?) would give the answer "2" when asked to calculate PI to the last digit (rounding errors may apply).
I don't get it.
If you had said '"3" (rounding errors may apply)' I would get it.
If you are just saying any wrong answer, you might as well have said 4 or 42.
> Just look at the child abuse statistics.
No system is perfect.
I will compare any 100 parents drawn at random against 100 orphanage governesses, social workers, even day-care teachers any day.
Or choose any other representative of government 'caring' for children.
And that machine intelligence can be defeated by being asked to calculate PI to the last digit, or by explaining that "this statement is a lie."
> Even the .380 Kel-tec P3AT can fit in a jeans pocket without bulging
I can't count the number of times my cell phone has randomly dialed someone or gone into the web browser simply from being leaned on in my pocket. And that's with the 'safety' (keypad lock) on.
If my cell phone had been a gun, I'd be sporting some stigmata by now.