Having built my own fiber channel backplanes based of a previously slashdot mentioned cinonic backplane, I agree, there are difficulties in setting up a fibre channel array.
I got a db9-db9 cable and a hssdc-hssdc cable orgiinally, and ended up trying to solder them together. I'd never tried soldering shields together, and presumed it would take a while, but I kinda found out its pretty much impossible. So I just pulled on over the other and wire wrapped the hell out of it.
I suspect its because of the cabling, but my fibre setup is fairly intollerant to electrical fields. I have to place the drives and cabling as far away from everything; cat 5, computer systems, et al. Kinda not pretty.
Before proper positioning, you'd get occasional sometimes fatal SCSI errors. Kernel panics were driving me nuts. I realized the drive was between a switch and a computer, so I spent a while and figured out the path of least interference. Now I can run bonnie++ on my 5 disc soft-raid 5 JBOD for a week straight. And fry eggs as the same time! And no more kernel panics. Thats always a plus.
Its a pain, but in the proper linux motto, once you can get it running, you can bet its not gonna stop.
Having built my own fiber channel backplanes based of a previously slashdot mentioned cinonic backplane, I agree, there are difficulties in setting up a fibre channel array.
I got a db9-db9 cable and a hssdc-hssdc cable orgiinally, and ended up trying to solder them together. I'd never tried soldering shields together, and presumed it would take a while, but I kinda found out its pretty much impossible. So I just pulled on over the other and wire wrapped the hell out of it.
I suspect its because of the cabling, but my fibre setup is fairly intollerant to electrical fields. I have to place the drives and cabling as far away from everything; cat 5, computer systems, et al. Kinda not pretty.
Before proper positioning, you'd get occasional sometimes fatal SCSI errors. Kernel panics were driving me nuts. I realized the drive was between a switch and a computer, so I spent a while and figured out the path of least interference. Now I can run bonnie++ on my 5 disc soft-raid 5 JBOD for a week straight. And fry eggs as the same time! And no more kernel panics. Thats always a plus.
Its a pain, but in the proper linux motto, once you can get it running, you can bet its not gonna stop.
The processor interconnect nature of the opeteron's are trivial compared to previous SMP architectures, in that the processors directly communicate with each other rather than using a switched architecture (one which requires very high speed fancy flying hard to use logic to function properly. aka: the hard part).
But you still have to design a motherboard. That alone is well beyond the scope of most mortal men. Electricity does some crazy things at 2.0 GHz.
Continually more and more, we're left at the hands of companies to deliver this future. True entrepreneurs aside, individuals have less and less power in issues like this.
Its going to be really sad how quad motherboards are still going to cost at least $800, even though they've got to be downright trivial to make compared to modern quad system. No central switching logic, just interconnect buses between processors! PCB and sockets aint that expensive, there's really no excuse. But its going to happen anyways.
Speak nothing of the many-thousand dollar eight processor boards.
Damn cushy profit margins.
The Abit BP6 was my introduction to low cost SMP. Now I've got a craving for more, but I dont think its going to happen. Even thought it could.
Maybe someone will get smart and make a enthusiast board. I seriously doubt it though. Not when there's bigger fish to fry. How long is it going to take for someone to realize that although less profitable, there will be untapped demand for non-server class quad systems.
Geological scale eh? I think a couple thousand more years might be in order before we start using not-out-of-the-womb-yet technology to start getting us off this parituclar ball of rock.
My guess is the first ships would probably be arriving at already settled planets, as technology increases the speed of transit, and given the gargantuan distances and times that will have to be covered.
Patience. Myren
Re:I'm doing this right now-
on
RAMdisk RAID?
·
· Score: 1
no one else is stupid enough to fab their own backplanes.
speaking of which, i'm only using single port single connect right now. 1gbit. my drives all claim to be capable of not only standard looped connection, but seem to have two different data ports. any idea how i can make use of this?
can i just add another HBA and plug it in on the other side for the loop? how do i take advantage of the second data port set?
I mean at least for CS just because your program meets the project requirements doesn't mean you get an A, in fact if you have crufty code that gets the job done but is not easily read and maintainable most profs I've had won't give you an A.
I dont think a single human being has touched a single piece of my code in the two years I've been here, aside from the 70+ page printouts they love returning to you.
Even comment checking is automated.
In my experiences with CS at least, it is black and white.
when they made the speed limits, they understood fairly well how even the comparitively unsafe and unweildy (see: less manuverable) vehicles of the past could be safely operated at higher speeds, but due to energy efficiency concerns they tossed out 65 mph as standard.
sssooooo slow.....
if you believe its for your safety, your a fucking moron, just like the rest of them. what'd your mother tell you about listening to your government's lies?
but i'm too afraid to tell anyone, because i know my idea will be stolen from me. and when they're done stealing my idea, they'll be busy perversifying commercializing and corporatizing what could have been a revolution. what a waste.
thankfully, i've got a couple other ideas that i can accept being stolen and broken. ideas that'll help me the learn the ropes of this vicious capitalist jungle.
Does anyone know a good source for updated development tools (sdks)?
<a href="http://www.opengl.org">www.opengl.org</a> seems a touch or two out of date, linking only to old SGI and MS sdk's (1.2's?). even 1.3's would be a fresh relief.
my opengl coding could use a breath of fresh life.
I've been thinking recently about adding some red blue and green strands to my otherwise white christmas light collection.
The color balance would probably suck, as I highly doubt the R B and G strands would all be the same intensity. I'd probably have to make a photoshop Curves adjuster for my homebrew PWM (scenix/ubicom microcontroller hooked to serial port).
On a last note, anyone know how bright LED christmas lights are compared to normal ones? I'd like to stop generating heat / wasting energy, but if i have to buy three times as many lights its just not worth it ( especially when college is paying my insane power bill ).
My rooms next upgrade is a generator, so I can keep adding more toys.
Um, yeah, my dorms rooms christmas lights are all controlled by my debian box. Not only is my system controlling over 3000 total christmas lights, two four foot long black lights and my sound system, but it runs debian too! What more do you want.
Ok, ok. I've got a fever for more lighting, and the only perscription is some LED christmas lights and some ropelight, and god damn it, if I want LED christmas lights and ropelight, i'll get some. i should be scooping a bunch up post christmas.
Now all I need is a generator for my dorm room.
Myren
I'm still creeped out by my friends phone. If your on his end and you listen carefully, you can hear 98.5 FM playing in the background. Cant hear it from the other end.
couple comments:
1) so we shouldnt have anything unnecessary on our systems?
2) I happen to like the fact that my bootloader can run 1600x1200.
3) for a friend's system it is a necessity. the mere existance of the console based Win2000 boot prompt caused cries of vehement protest amongst his family. having a graphical boot loader silenced their confused and angered complaints.
well actually, if you look closely, evolution is supposed to happen because the bearers of certain traits seem to not make it to breed.
While the entire issue of not being able to breed doesnt show up much anymore, there is one thing we have to note.
The rich tend to breed with the rich, the poor tend to breed with the poor.
Sure, there is a whole lot of mixing, but none-the-less, given a couple million years of our current state, we'd have a pretty stratified gene pool.
Myren
Slashdot Mirror
Having built my own fiber channel backplanes based of a previously slashdot mentioned cinonic backplane, I agree, there are difficulties in setting up a fibre channel array.
I got a db9-db9 cable and a hssdc-hssdc cable orgiinally, and ended up trying to solder them together. I'd never tried soldering shields together, and presumed it would take a while, but I kinda found out its pretty much impossible. So I just pulled on over the other and wire wrapped the hell out of it.
I suspect its because of the cabling, but my fibre setup is fairly intollerant to electrical fields. I have to place the drives and cabling as far away from everything; cat 5, computer systems, et al. Kinda not pretty.
Before proper positioning, you'd get occasional sometimes fatal SCSI errors. Kernel panics were driving me nuts. I realized the drive was between a switch and a computer, so I spent a while and figured out the path of least interference. Now I can run bonnie++ on my 5 disc soft-raid 5 JBOD for a week straight. And fry eggs as the same time! And no more kernel panics. Thats always a plus.
Its a pain, but in the proper linux motto, once you can get it running, you can bet its not gonna stop.
[properly formatted repost from a moron. sorry]
Are there any free solutions for file locking?
Ya know, we need to stop mentioning that very badly, because dirt cheap keeps getting less and less cheap as we drag more people over to dark ways.
Supply remaining constant, demand increasing. Not cool.
because its cool
oh, and amazing perforance for cheap from ebay. sure, there's huge startup costs, but storage from then on is neigh on free.
Myren
Having built my own fiber channel backplanes based of a previously slashdot mentioned cinonic backplane, I agree, there are difficulties in setting up a fibre channel array. I got a db9-db9 cable and a hssdc-hssdc cable orgiinally, and ended up trying to solder them together. I'd never tried soldering shields together, and presumed it would take a while, but I kinda found out its pretty much impossible. So I just pulled on over the other and wire wrapped the hell out of it. I suspect its because of the cabling, but my fibre setup is fairly intollerant to electrical fields. I have to place the drives and cabling as far away from everything; cat 5, computer systems, et al. Kinda not pretty. Before proper positioning, you'd get occasional sometimes fatal SCSI errors. Kernel panics were driving me nuts. I realized the drive was between a switch and a computer, so I spent a while and figured out the path of least interference. Now I can run bonnie++ on my 5 disc soft-raid 5 JBOD for a week straight. And fry eggs as the same time! And no more kernel panics. Thats always a plus. Its a pain, but in the proper linux motto, once you can get it running, you can bet its not gonna stop.
The processor interconnect nature of the opeteron's are trivial compared to previous SMP architectures, in that the processors directly communicate with each other rather than using a switched architecture (one which requires very high speed fancy flying hard to use logic to function properly. aka: the hard part).
But you still have to design a motherboard. That alone is well beyond the scope of most mortal men. Electricity does some crazy things at 2.0 GHz.
Continually more and more, we're left at the hands of companies to deliver this future. True entrepreneurs aside, individuals have less and less power in issues like this.
Its going to be really sad how quad motherboards are still going to cost at least $800, even though they've got to be downright trivial to make compared to modern quad system. No central switching logic, just interconnect buses between processors! PCB and sockets aint that expensive, there's really no excuse. But its going to happen anyways.
Speak nothing of the many-thousand dollar eight processor boards.
Damn cushy profit margins.
The Abit BP6 was my introduction to low cost SMP. Now I've got a craving for more, but I dont think its going to happen. Even thought it could.
Maybe someone will get smart and make a enthusiast board. I seriously doubt it though. Not when there's bigger fish to fry. How long is it going to take for someone to realize that although less profitable, there will be untapped demand for non-server class quad systems.
Myren
Geological scale eh? I think a couple thousand more years might be in order before we start using not-out-of-the-womb-yet technology to start getting us off this parituclar ball of rock.
My guess is the first ships would probably be arriving at already settled planets, as technology increases the speed of transit, and given the gargantuan distances and times that will have to be covered.
Patience.
Myren
no one else is stupid enough to fab their own backplanes.
speaking of which, i'm only using single port single connect right now. 1gbit. my drives all claim to be capable of not only standard looped connection, but seem to have two different data ports. any idea how i can make use of this?
can i just add another HBA and plug it in on the other side for the loop? how do i take advantage of the second data port set?
i really want a pinout.
Linux setup costs are insane, if you want a coherent, cohesive system with any sort of usability.
Once its up and running, it'll go forever.
I mean at least for CS just because your program meets the project requirements doesn't mean you get an A, in fact if you have crufty code that gets the job done but is not easily read and maintainable most profs I've had won't give you an A.
I dont think a single human being has touched a single piece of my code in the two years I've been here, aside from the 70+ page printouts they love returning to you.
Even comment checking is automated.
In my experiences with CS at least, it is black and white.
Myren
No jury in the world would convict me!!
Does anyone know of any $200 megapixel grade solutions?
Maybe a digital camera with firewire output?
DIY solutions welcome.
Myren.
(us of a story)
when they made the speed limits, they understood fairly well how even the comparitively unsafe and unweildy (see: less manuverable) vehicles of the past could be safely operated at higher speeds, but due to energy efficiency concerns they tossed out 65 mph as standard.
sssooooo slow.....
if you believe its for your safety, your a fucking moron, just like the rest of them. what'd your mother tell you about listening to your government's lies?
i believe the man's point was that the government can has a catch all excuse that you were going to fast.
but i'm too afraid to tell anyone, because i know my idea will be stolen from me. and when they're done stealing my idea, they'll be busy perversifying commercializing and corporatizing what could have been a revolution. what a waste.
thankfully, i've got a couple other ideas that i can accept being stolen and broken. ideas that'll help me the learn the ropes of this vicious capitalist jungle.
i feel like lions (lawyers) meat.
Does anyone know a good source for updated development tools (sdks)?
<a href="http://www.opengl.org">www.opengl.org</a> seems a touch or two out of date, linking only to old SGI and MS sdk's (1.2's?). even 1.3's would be a fresh relief.
my opengl coding could use a breath of fresh life.
thanks
myren
So we can all enjoy what would become a 200 baud wireless connection?
Yes, its wrong, but in many ways the technological divide is what enables technology in the first place.
Myren
i suppose, but i'm a bit disappointed such a lowly tech hack would be considered slashdot worthy.
I've been thinking recently about adding some red blue and green strands to my otherwise white christmas light collection.
The color balance would probably suck, as I highly doubt the R B and G strands would all be the same intensity. I'd probably have to make a photoshop Curves adjuster for my homebrew PWM (scenix/ubicom microcontroller hooked to serial port).
On a last note, anyone know how bright LED christmas lights are compared to normal ones? I'd like to stop generating heat / wasting energy, but if i have to buy three times as many lights its just not worth it ( especially when college is paying my insane power bill ).
My rooms next upgrade is a generator, so I can keep adding more toys.
Myren
Um, yeah, my dorms rooms christmas lights are all controlled by my debian box. Not only is my system controlling over 3000 total christmas lights, two four foot long black lights and my sound system, but it runs debian too! What more do you want.
Ok, ok. I've got a fever for more lighting, and the only perscription is some LED christmas lights and some ropelight, and god damn it, if I want LED christmas lights and ropelight, i'll get some. i should be scooping a bunch up post christmas.
Now all I need is a generator for my dorm room.
Myren
I'm still creeped out by my friends phone. If your on his end and you listen carefully, you can hear 98.5 FM playing in the background. Cant hear it from the other end.
couple comments:
1) so we shouldnt have anything unnecessary on our systems?
2) I happen to like the fact that my bootloader can run 1600x1200.
3) for a friend's system it is a necessity. the mere existance of the console based Win2000 boot prompt caused cries of vehement protest amongst his family. having a graphical boot loader silenced their confused and angered complaints.
When Sagan begins the thing by dicing himself open with a rose for the purpose of spilling blood?
My astronomy class was puzzling for a bit over that.
Myren
well actually, if you look closely, evolution is supposed to happen because the bearers of certain traits seem to not make it to breed. While the entire issue of not being able to breed doesnt show up much anymore, there is one thing we have to note. The rich tend to breed with the rich, the poor tend to breed with the poor. Sure, there is a whole lot of mixing, but none-the-less, given a couple million years of our current state, we'd have a pretty stratified gene pool. Myren