How about MooseFS (http://moosefs.org) for an OSS solution, or if you want appliances off the shelf that won't cost you a limb or three, Exablox (http://exablox.com). Or if you need more than the 700TB that can give you, how about http://www.scality.com/ - which is software defined and you can use your own iron.
The article explains most of it. BMRT was a freely available Renderman-compatible renderer. It was available for years until Larry Gritz decided to produce an upgraded commercial version.
It was quite a fun toy to play with, and also probably stopped quite a few aspiring 3D artists from learning RM.
I can't agree with this - if the termination of a transmission line is correct at each end, then the length has no matter at all for any frequency (in theory, not accounting for increasing losses with frequency, but then there's a reason for length restrictions in the CatX/Ethernet standards).
If you're talking about a *tuned* line (eg a stub or a tuned antenna feeder), then length is important. But we're not. If you've got problems with harmonics or matching and reflections then your ethernet cards are probably bottom-shelf knock-offs.
The problem with premade-lenght cables is you're going to run into tangles if many changes are made, and are going to end up coiling. Make that coil too tight and you're going to cause crosstalk. A custom job with all cables neatly following defined routes with no coils, twists or kinks is going to make life easier in the long term.
Big companies? Small ones too. If a machine is having problems that can't be quickly diagnosed and fixed, then we re-image from a central repository (which stores one standard image for each type of PC we have purchased) - no interaction is needed so the IT staff can get on with something more productive than clicking dialog boxes and installing drivers.
Although having everybody running a thin client to a Terminal Services cluster would be so much easier...
Linux got me into the business and I'm going to stick with it. I agree there are a lot of weenies out there, but there are just as many on the Windows side. Every time I want to recruit to my team, I get dozens and dozens of CVs (after the initial HR weeding process) of obvious fresh-out-of-high school applicants who've got a couple of Diplomas (largely MS/Visual Studio based) but no real interest in IT of any sort - they see it as a stepping stone to Management (invariably the m-word is one of the courses they've done) and only shoved Linux on the CV because it was in the advert and they're chancers.
The very, very few that I employ are people who've tried stuff at home (doesn't have to be Linux, just something that shows curiosity, drive and a broader mindset - eg hacking their Xbox or deploying a media network) and are really enthusiastic to learn and progress their skills in the field. Even if some of these people are only partially aware of FOSS I can easily see their interest piqued once it's fully explained to them. Getting them to see the bigger picture in terms of enterprise integration is a matter of nurturing that as their experience grows.
The management-wannabees sometimes slip through when they're really sly but we have this thing called a probation period for a reason;-)
Oh, and just to brag, my personal record for setting up a Samba domain with LDAP and an authenticated Squid proxy with an IMAP mail server (LDAP auth) stands at 2 hours and 40 minutes (it was an offshore business and I had little time before my flight home after installing all the boxes in a rack and setting up the 5 workstations and 3 printers). Much caffeine was consumed - but I guess that's a given!
I can't understand why this is being run down by so many people. This is the sort of thing that could be applied to any form of education, be it literature/literacy/art/sciences/computing etc.
I live in the UK and my wife teaches secondary level art; anything that can encourage pupils to enjoy exploration and help them cope with the government-mandated, institutionalised, school-ratings-based testing procedures and think outside the curriculum would be a godsend. It's inspiration that's the key - my wife does as best as she's permitted to do within the rules she's set, but some kids just seem to continually need firing up and encouraging outside of any overtime she does could possibly provide.
I say the creativity displayed here is wonderful and exciting - and it is the gateway to getting kids interested in something for its own sake rather then because they feel they are "required" to learn it and "get good grades". If it has the side effect of helping the latter then so much the better.
My wife is also of a left-leaning bent and has until recently resisted the temptation to compare state-run schools with private institutions (I am of similar political leanings but have has the benefit of private education) - but is now beginning to question what the UK "National Curriculum" and SATs (recently brought in here) really contribute to a child's mental development.
Bravo and good luck to all the people doing and supporting this. It takes a lot of guts to invest in something so quirky but so inspiring. And it looks like a riot of fun to boot!
So from the article, I gather it won't be possible to place a symlink on a shared directory that points to a directory on the machine that mounts the share?
We use this for a call recording system already. We mount a share via NFS on a NAS box. On that NAS box there is a symlink from a subdirectory of the NFS share to a path that doesn't exist on the server, but does on the client (the server stores the call audio, the client stores the call metadata). When the client mounts the share, the link works correctly, it points to the directory on the local machine.
This is damn useful since we can't change the behaviour of the call recorder (it expects the calls and metadata to be in the same directory). It seems this implementation won't allow this kind of transparency...
You do indeed get it - in the UK it's called HipShift, and it's far superior for many uses, notable bathroom drains clogged with hair - it essentially turns all organic materials to flaky charcoal (or renders them at least brittle enough that they break up when flushed). It's harder to get as it's used more by professionals, but if you go to a decent builder's/plumbers centre they'll have it.
Caustic Soda/Lye generally only works well on fats (turns them to soluble soap). Hydrochloric is also sold here as "Spirits of Salts" and is really the only thing to shift heavy limescale (we moved into a flat where someone had never given the toilet bowl a good scrub with cream cleaner - it was encrusted with about a 3mm layer of discoloured limescale. One small bottle of HCl, it was gleaming in 30 minutes.) Great on the drip-marks on baths and crusty/rough-looking taps too (but keep the concentration down a bit so it won't bite through the nickel plating).
We have two boxes with a large RAID5 array (about 2TB). One onsite, the other off, connected to the onsite box via a private circuit.
Nightly, a process runs that rsyncs data off all our critical servers to the RAID boxes. We also use the --backup flag to keep copies of changed files in a set of directories that get rotated over a period of 14 days. In this way I can very quickly recover a file in any state over the last two weeks, not just the current version.
Granted, we have a 100Mbps circuit to the remote site, but we do have some fairly large DB files (about 50GB worth) that change daily, and we also have DB logging to that site running during the day. If you are running a smaller op with less changes (especially to large files) you might be able to get away with something like SDSL or even ADSL. The secret is that with rsync you only transmit changed files. Or you could be a little more risky and just do it onsite or via wired/wireless to a nearby building, eg an outhouse, garage, friend's house across the road or whatever - just think about fire or flood risk.
It's pretty sweet compared to the agony of tape. Even with LTOII we were getting to 3 tapes per day, and the third tape would not finish until well after closing time, so we couldn't do backups every day, and as a further downer, of course each tape would have files from different times on it, which is a nightmare if you're trying to back up DBs and keep them consistent!
Not every circuit in a power supply is high-current. The SMPS controller (eg TL494 and equivalents) are low-powered devices and have several terminals that will be operating with a few milliamps of current draw or less. For instance, shorting out the comparator sense input to ground would cause the output voltage to rise to way above operating values, thus blowing fuses or damaging other components downstream of the output.
It's plausible enough that on Monday I will be removing and inspecting *all* the 30-or-so floorbox lids in our comms room. It's too much of a risk to take to leave unchecked.
Nice reply - I actually just got an old Mac SE/30 and was told that if you don't discharge the tube properly before starting your repair work you can kill the mobo. So I got out my trusty discharging wand (a screwdriver with a 10 meg resistor and a croc-clip flylead soldered to it) and that sorted that.
However, I would agree you should be careful with anything powered - eg, routers are not like PCs - they often have "open-frame" power supplies, ie once the top cover is off you can be exposed to full mains voltage or more. I experienced this myself when attemptimg to move an open, powered on Ascent Pipeline a few inches to the left, not realising one hand was on the live output transistor heatsink and the other was on the case. Ouch, and I'll never be that stupid again (glad I got the chance).
The standard rule with anything powered is to always keep one hand behind your back. Tie it there with a piece of (breakable!) thread to remind you if you need to.
As for CRTs, I doubt any but huge (30" +) ones could kill you - however if the PSU in these is badly designed you could have 500-1000V across some fairly big electrolytic caps to deal with. In laymens terms, ugly if you touch them.
As in a previous post, I once got about a 2-3 joule shock across the chest from what I thought was a fully discharged cap bank from my tesla coil. It hurt bad, but I knew already that I wouldn't stop my heart. Despite that, it made me more careful than before. Now all HV circuits I build have bleeder resistors accross the capacitors by default.
I would never trivialise high voltage, and you may think I'm a pratt for being shocked once. I just realise I was lucky and had better not rely on that in future.
sci.electronics.repair FAQ will teach you both how to fix the most common faults in equipment and give you all the safety info you need. However as for the latter, all I can say is read, read and reread - it's your life after all...
Uhm, CMYK is not patented - it's just the standard way colour printing works (subtractive color model). I think you're confusing it with Pantone, which is widely used for colour/matching/ is most certainly requires a licencing fee.
Slashdot Mirror
How about MooseFS (http://moosefs.org) for an OSS solution, or if you want appliances off the shelf that won't cost you a limb or three, Exablox (http://exablox.com). Or if you need more than the 700TB that can give you, how about http://www.scality.com/ - which is software defined and you can use your own iron.
Looks like the you are a windows user.
In which case, there is only one thing you need, and that's Cygwin. It is a GNU environment on Windows.
http://www.cygwin.com/
Erm,
I think it was just a thought exercise demonstrating the idiocy of the concept. Using real solar panels it would be even more stupid!
I picked up an HP Laserjet 5550DTN for £400 recently off ebay. Only had 14000 pages on the clock.
It's huuuuge but it's A3 colour, duplex, built like a tank and really fast. 3rd party toners are dead cheap and I have no issues with them.
Worth looking at used models if they are from a good seller and low mileage.
Ugh, that last sentence makes no sense; I meant:
"its loss probably stopped quite a few aspiring 3D artists from learning RM."
http://en.wikipedia.org/wiki/Blue_Moon_Rendering_Tools
The article explains most of it. BMRT was a freely available Renderman-compatible renderer. It was available for years until Larry Gritz decided to produce an upgraded commercial version.
It was quite a fun toy to play with, and also probably stopped quite a few aspiring 3D artists from learning RM.
Firewall Builder
That's about as good as it gets without the risk of a PHB letting the orcs in!
I can't agree with this - if the termination of a transmission line is correct at each end, then the length has no matter at all for any frequency (in theory, not accounting for increasing losses with frequency, but then there's a reason for length restrictions in the CatX/Ethernet standards).
If you're talking about a *tuned* line (eg a stub or a tuned antenna feeder), then length is important. But we're not. If you've got problems with harmonics or matching and reflections then your ethernet cards are probably bottom-shelf knock-offs.
The problem with premade-lenght cables is you're going to run into tangles if many changes are made, and are going to end up coiling. Make that coil too tight and you're going to cause crosstalk. A custom job with all cables neatly following defined routes with no coils, twists or kinks is going to make life easier in the long term.
Big companies? Small ones too. If a machine is having problems that can't be quickly diagnosed and fixed, then we re-image from a central repository (which stores one standard image for each type of PC we have purchased) - no interaction is needed so the IT staff can get on with something more productive than clicking dialog boxes and installing drivers.
Although having everybody running a thin client to a Terminal Services cluster would be so much easier...
Alex
Linux got me into the business and I'm going to stick with it. I agree there are a lot of weenies out there, but there are just as many on the Windows side. Every time I want to recruit to my team, I get dozens and dozens of CVs (after the initial HR weeding process) of obvious fresh-out-of-high school applicants who've got a couple of Diplomas (largely MS/Visual Studio based) but no real interest in IT of any sort - they see it as a stepping stone to Management (invariably the m-word is one of the courses they've done) and only shoved Linux on the CV because it was in the advert and they're chancers.
The very, very few that I employ are people who've tried stuff at home (doesn't have to be Linux, just something that shows curiosity, drive and a broader mindset - eg hacking their Xbox or deploying a media network) and are really enthusiastic to learn and progress their skills in the field. Even if some of these people are only partially aware of FOSS I can easily see their interest piqued once it's fully explained to them. Getting them to see the bigger picture in terms of enterprise integration is a matter of nurturing that as their experience grows.
The management-wannabees sometimes slip through when they're really sly but we have this thing called a probation period for a reason ;-)
Oh, and just to brag, my personal record for setting up a Samba domain with LDAP and an authenticated Squid proxy with an IMAP mail server (LDAP auth) stands at 2 hours and 40 minutes (it was an offshore business and I had little time before my flight home after installing all the boxes in a rack and setting up the 5 workstations and 3 printers). Much caffeine was consumed - but I guess that's a given!
So Cartier-Bresson was a pervert then?
Way to go with the generalisations.
Cunt.
text to get around stupid lameness filter
I can't understand why this is being run down by so many people. This is the sort of thing that could be applied to any form of education, be it literature/literacy/art/sciences/computing etc.
I live in the UK and my wife teaches secondary level art; anything that can encourage pupils to enjoy exploration and help them cope with the government-mandated, institutionalised, school-ratings-based testing procedures and think outside the curriculum would be a godsend. It's inspiration that's the key - my wife does as best as she's permitted to do within the rules she's set, but some kids just seem to continually need firing up and encouraging outside of any overtime she does could possibly provide.
I say the creativity displayed here is wonderful and exciting - and it is the gateway to getting kids interested in something for its own sake rather then because they feel they are "required" to learn it and "get good grades". If it has the side effect of helping the latter then so much the better.
My wife is also of a left-leaning bent and has until recently resisted the temptation to compare state-run schools with private institutions (I am of similar political leanings but have has the benefit of private education) - but is now beginning to question what the UK "National Curriculum" and SATs (recently brought in here) really contribute to a child's mental development.
Bravo and good luck to all the people doing and supporting this. It takes a lot of guts to invest in something so quirky but so inspiring. And it looks like a riot of fun to boot!
So from the article, I gather it won't be possible to place a symlink on a shared directory that points to a directory on the machine that mounts the share?
We use this for a call recording system already. We mount a share via NFS on a NAS box. On that NAS box there is a symlink from a subdirectory of the NFS share to a path that doesn't exist on the server, but does on the client (the server stores the call audio, the client stores the call metadata). When the client mounts the share, the link works correctly, it points to the directory on the local machine.
This is damn useful since we can't change the behaviour of the call recorder (it expects the calls and metadata to be in the same directory). It seems this implementation won't allow this kind of transparency...
You do indeed get it - in the UK it's called HipShift, and it's far superior for many uses, notable bathroom drains clogged with hair - it essentially turns all organic materials to flaky charcoal (or renders them at least brittle enough that they break up when flushed). It's harder to get as it's used more by professionals, but if you go to a decent builder's/plumbers centre they'll have it.
Caustic Soda/Lye generally only works well on fats (turns them to soluble soap). Hydrochloric is also sold here as "Spirits of Salts" and is really the only thing to shift heavy limescale (we moved into a flat where someone had never given the toilet bowl a good scrub with cream cleaner - it was encrusted with about a 3mm layer of discoloured limescale. One small bottle of HCl, it was gleaming in 30 minutes.) Great on the drip-marks on baths and crusty/rough-looking taps too (but keep the concentration down a bit so it won't bite through the nickel plating).
Is it even possible to run 2003 Terminal Services in a Samba domain? I thought AD was required?
We have two boxes with a large RAID5 array (about 2TB). One onsite, the other off, connected to the onsite box via a private circuit.
Nightly, a process runs that rsyncs data off all our critical servers to the RAID boxes. We also use the --backup flag to keep copies of changed files in a set of directories that get rotated over a period of 14 days. In this way I can very quickly recover a file in any state over the last two weeks, not just the current version.
Granted, we have a 100Mbps circuit to the remote site, but we do have some fairly large DB files (about 50GB worth) that change daily, and we also have DB logging to that site running during the day. If you are running a smaller op with less changes (especially to large files) you might be able to get away with something like SDSL or even ADSL. The secret is that with rsync you only transmit changed files. Or you could be a little more risky and just do it onsite or via wired/wireless to a nearby building, eg an outhouse, garage, friend's house across the road or whatever - just think about fire or flood risk.
It's pretty sweet compared to the agony of tape. Even with LTOII we were getting to 3 tapes per day, and the third tape would not finish until well after closing time, so we couldn't do backups every day, and as a further downer, of course each tape would have files from different times on it, which is a nightmare if you're trying to back up DBs and keep them consistent!
Under your system Einstein would have been fucked, not to put too fine a point on it!
Not every circuit in a power supply is high-current. The SMPS controller (eg TL494 and equivalents) are low-powered devices and have several terminals that will be operating with a few milliamps of current draw or less. For instance, shorting out the comparator sense input to ground would cause the output voltage to rise to way above operating values, thus blowing fuses or damaging other components downstream of the output.
It's plausible enough that on Monday I will be removing and inspecting *all* the 30-or-so floorbox lids in our comms room. It's too much of a risk to take to leave unchecked.
Hmm, I always use _this_ to indicate underlines, and /this/ for italics.
I agree with the *bold* thing though. However, what to use in lieu of the blink tag? Maybe !this!?
Now THAT is a great idea. Were'nt politicians always meant to serve the people? They'd crap their pants at the mere thought of doing anything else!
Nice reply - I actually just got an old Mac SE/30 and was told that if you don't discharge the tube properly before starting your repair work you can kill the mobo. So I got out my trusty discharging wand (a screwdriver with a 10 meg resistor and a croc-clip flylead soldered to it) and that sorted that.
;-)
However, I would agree you should be careful with anything powered - eg, routers are not like PCs - they often have "open-frame" power supplies, ie once the top cover is off you can be exposed to full mains voltage or more. I experienced this myself when attemptimg to move an open, powered on Ascent Pipeline a few inches to the left, not realising one hand was on the live output transistor heatsink and the other was on the case. Ouch, and I'll never be that stupid again (glad I got the chance).
The standard rule with anything powered is to always keep one hand behind your back. Tie it there with a piece of (breakable!) thread to remind you if you need to.
As for CRTs, I doubt any but huge (30" +) ones could kill you - however if the PSU in these is badly designed you could have 500-1000V across some fairly big electrolytic caps to deal with. In laymens terms, ugly if you touch them.
As in a previous post, I once got about a 2-3 joule shock across the chest from what I thought was a fully discharged cap bank from my tesla coil. It hurt bad, but I knew already that I wouldn't stop my heart. Despite that, it made me more careful than before. Now all HV circuits I build have bleeder resistors accross the capacitors by default.
I would never trivialise high voltage, and you may think I'm a pratt for being shocked once. I just realise I was lucky and had better not rely on that in future.
Bzzt-craaakk!
sci.electronics.repair FAQ will teach you both how to fix the most common faults in equipment and give you all the safety info you need. However as for the latter, all I can say is read, read and reread - it's your life after all...
Uhm, CMYK is not patented - it's just the standard way colour printing works (subtractive color model). I think you're confusing it with Pantone, which is widely used for colour /matching/ is most certainly requires a licencing fee.
I agree - once you get into the home, the costs of actually not causing terrible interference would outbalance any savings on infrastructure.
It's just a bad idea, full stop.