Excellent exposition, to which I would only add that the choice of XFS in the original Buffalo Terastation was ill advised. You WILL lose all your data at some point if it's not on a UPS, and probably even if it IS on a UPS. Don't know if they are still using this loser filesystem on their II and II models; I swore I would never use their products again.
The published power specs are usually some absurdly borderline absolute maximum power supply capability and are not even close to the actual power consumption.
For example, the Mac Mini I had (Core Duo with Intel video, not the very latest one with Nvidia 9400M) was nowhere near 85 watts - it idled at just about 20 watts. With the Nvidia, I would estimate no more than 25, 30 at the utmost; almost sure it will be closer to 25. And it will be idling 99.9% of the time with this kind of use. An Aopen Mini will do just as well, and is dead easy to install linux on, and at least as well designed. I measured mine (Core Duo with Intel video) at 20 watts idle. They now make fanless industrial Minis that consume even less power. I've been running a Pentium M mini-ITX 24x7 since 2004 for this type of service; again, it draws 20 watts. All of these systems are ridiculously quiet, make very low waste heat, and take up very little space if the keyboard/mouse/monitor are not connected (you control them over ssh from your notebook or desktop, you turn them on and off with the power button, which invokes a graceful shutdown via ACPI).
If you can find a well used 13-14" Pentium M or Core Duo notebook (preferably Intel video which is low power) with a busted display, and are able to install linux using the DB-15 video connector or serial port, you can have a nice system for low bucks. Once again, I have measured these systems idling with the backlight off, and they are right around 20 watts. The half decent ones will run a long time 24x7 if they are not stressed, because the fan is barely ticking over.
I'm looking into some of the ARM stuff now. It will be substantially less power and still capable of all these kinds of tasks. I should have this one Mini-2440 in a couple of days. It will probably idle below 1 watt with the LCD backlight off.
I don't think there was ever any danger of the Atom ever coming close to being efficient enough for a phone; maybe some other hypothetical fantasy in Intel's mind though.
Dear Sparc International a.k.a. Prototypical Stupid Bully: "Identical goods," my evil eye, you asswipe pus-filled scum from Hades! Eat shit and die. May your wart grow a truly loathsome hairy sub-wart that dare not be seen in public. May your corporate bowel be irretrievably blocked. May your tinnitus have tinnitus and may your Morgellons Syndrome be spectacularly pathological.
Too bad for Apple, not for ZFS. OpenSolaris and FreeBSD support ZFS just fine. I do think it's best suited to servers, and OpenSolaris and FreeBSD are greatly superior server operating systems anyway.
I suggest you drop MacOS like a hot potato, send a nastygram to Apple giving them a piece of your mind, and check out both OpenSolaris and FreeBSD. They both support ZFS, OpenSolaris because Sun invented ZFS, and FreeBSD because they have competent management AND engineering. Unlike certain others (and I'm not pointing the finger at linux).
Once again, FreeBSD has shown the fools in Cupertino how it's done.
Yes, I realize it contains the letters "FS", but ZFS is not just a filesystem. It incorporates a lot more than that. That's one of the reasons it's really hard to integrate into an OS, given the architecture of most OS's.
I have heard this statement many times. OK, if hydrogen is not a fuel, neither is petroleum. Both of them have to be created or extracted and purified or refined. All that petroleum is doing is storing energy that came ultimately from the sun. Ergo, they are both energy storage media, not ultimate sources of energy.
OK, now state the energy-to-mass and energy-to-volume figures of the gasoline PLUS gas tank versus that of the hydrogen PLUS storage matrix. Fact is, petroleum or synfuel equivalent is the most volume-efficient storage mechanism for hydrogen yet devised - not even counting the contribution of the carbon content. One liter of gasoline contains a higher mass of hydrogen than one liter of liquid hydrogen.
State of the art hydrogen storage systems have a container mass 10x the mass of the contained hydrogen, versus around 0.1x for gasoline tanks. Compressing or liquefying the hydrogen saps a huge amount of the theoretical energy efficiency of the system.
When you add container weight, petroleum is the most MASS-efficient storage mechanism for hydrogen.
Please think before saying silly things. Let's say Joe Blow has an account with Comcast. On Monday at 9:30am, somebody makes a death threat from IP # 1.2.3.4, the police contact all the ISP's, and Comcast says, hey it's one of ours, and that IP was leased to Joe Blow's cable modem at that time. Big fucking deal. Joe has a family, and his friends visit him. Joe's brother Harry may have been using a PC in Joe's house; either Harry's own notebook, or he's just sitting at Joe's desktop. Or Jane White next door may be connected Joe's wireless router, with or without his permission. Or some scumball has hacked Joe's PC and is using it as a proxy.
Or maybe Joe's Comcast account is owned and paid by his friend George Sanders, since Joe hasn't had a job in some time.
Just because a packet passes through a router with a public IP leased to Joe, you don't have anything to connect that packet to Joe unless and until you do further detective work. The keyboard does not fingerprint the guy who is typing on it (Lord help me, now I'm giving depraved power hungry madmen ideas).
You may try to make Joe legally responsible for everything that happens on, or via, his computer equipment, but I think you'd run into some political opposition to that kind of police state. Just imagine if someone steals your car and runs down a pedestrian driving it. Do you really want to be the guy prosecuted for that crime?
The 1TB 2.5" drive that exists is not even a real 2.5" drive; not in any real sense. It is thicker than the 9.5mm de facto standard and WON'T FIT ANYWHERE that a normal 2.5" drive will fit. Talk about dropping the ball.
We even use a script to create versioned backups going back six months using perl as a wrapper.
Kudos for publishing the code! Can you comment on your script vs rsnapshot, which is an established incremental rsync based solution which also uses hard links to factor out unchanging files? Rsnapshot is also a perl script, by the way.
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Excellent exposition, to which I would only add that the choice of XFS in the original Buffalo Terastation was ill advised. You WILL lose all your data at some point if it's not on a UPS, and probably even if it IS on a UPS. Don't know if they are still using this loser filesystem on their II and II models; I swore I would never use their products again.
Measure the power with a Kill-a-Watt
The published power specs are usually some absurdly borderline absolute maximum power supply capability and are not even close to the actual power consumption.
For example, the Mac Mini I had (Core Duo with Intel video, not the very latest one with Nvidia 9400M) was nowhere near 85 watts - it idled at just about 20 watts. With the Nvidia, I would estimate no more than 25, 30 at the utmost; almost sure it will be closer to 25. And it will be idling 99.9% of the time with this kind of use. An Aopen Mini will do just as well, and is dead easy to install linux on, and at least as well designed. I measured mine (Core Duo with Intel video) at 20 watts idle. They now make fanless industrial Minis that consume even less power. I've been running a Pentium M mini-ITX 24x7 since 2004 for this type of service; again, it draws 20 watts. All of these systems are ridiculously quiet, make very low waste heat, and take up very little space if the keyboard/mouse/monitor are not connected (you control them over ssh from your notebook or desktop, you turn them on and off with the power button, which invokes a graceful shutdown via ACPI).
If you can find a well used 13-14" Pentium M or Core Duo notebook (preferably Intel video which is low power) with a busted display, and are able to install linux using the DB-15 video connector or serial port, you can have a nice system for low bucks. Once again, I have measured these systems idling with the backlight off, and they are right around 20 watts. The half decent ones will run a long time 24x7 if they are not stressed, because the fan is barely ticking over.
I'm looking into some of the ARM stuff now. It will be substantially less power and still capable of all these kinds of tasks. I should have this one Mini-2440 in a couple of days. It will probably idle below 1 watt with the LCD backlight off.
I don't think there was ever any danger of the Atom ever coming close to being efficient enough for a phone; maybe some other hypothetical fantasy in Intel's mind though.
The Cortex-A5 is aimed at phones. The Cortext-A9 is the one aimed at netbooks. The article referenced in the summary makes this clear.
Come back when you grow up, fool.
Dear Sparc International a.k.a. Prototypical Stupid Bully: "Identical goods," my evil eye, you asswipe pus-filled scum from Hades! Eat shit and die. May your wart grow a truly loathsome hairy sub-wart that dare not be seen in public. May your corporate bowel be irretrievably blocked. May your tinnitus have tinnitus and may your Morgellons Syndrome be spectacularly pathological.
Bye bye Apple you assholes.
Too bad for Apple, not for ZFS. OpenSolaris and FreeBSD support ZFS just fine. I do think it's best suited to servers, and OpenSolaris and FreeBSD are greatly superior server operating systems anyway.
I suggest you drop MacOS like a hot potato, send a nastygram to Apple giving them a piece of your mind, and check out both OpenSolaris and FreeBSD. They both support ZFS, OpenSolaris because Sun invented ZFS, and FreeBSD because they have competent management AND engineering. Unlike certain others (and I'm not pointing the finger at linux).
Once again, FreeBSD has shown the fools in Cupertino how it's done.
Yes, I realize it contains the letters "FS", but ZFS is not just a filesystem. It incorporates a lot more than that. That's one of the reasons it's really hard to integrate into an OS, given the architecture of most OS's.
Brilliant. You are spot on. Very few people understand this distinction.
You are a very stupid asshole.
Within their limits, NiFe cells (Edison cells) are great. Here's where you can read about them and buy them NiFe cells source
I have heard this statement many times. OK, if hydrogen is not a fuel, neither is petroleum. Both of them have to be created or extracted and purified or refined. All that petroleum is doing is storing energy that came ultimately from the sun. Ergo, they are both energy storage media, not ultimate sources of energy.
OK, now state the energy-to-mass and energy-to-volume figures of the gasoline PLUS gas tank versus that of the hydrogen PLUS storage matrix. Fact is, petroleum or synfuel equivalent is the most volume-efficient storage mechanism for hydrogen yet devised - not even counting the contribution of the carbon content. One liter of gasoline contains a higher mass of hydrogen than one liter of liquid hydrogen.
State of the art hydrogen storage systems have a container mass 10x the mass of the contained hydrogen, versus around 0.1x for gasoline tanks. Compressing or liquefying the hydrogen saps a huge amount of the theoretical energy efficiency of the system.
When you add container weight, petroleum is the most MASS-efficient storage mechanism for hydrogen.
Agree most heartily. Godwin fascists eat shit and die.
Bravo! Best post ever!
Please think before saying silly things. Let's say Joe Blow has an account with Comcast. On Monday at 9:30am, somebody makes a death threat from IP # 1.2.3.4, the police contact all the ISP's, and Comcast says, hey it's one of ours, and that IP was leased to Joe Blow's cable modem at that time. Big fucking deal. Joe has a family, and his friends visit him. Joe's brother Harry may have been using a PC in Joe's house; either Harry's own notebook, or he's just sitting at Joe's desktop. Or Jane White next door may be connected Joe's wireless router, with or without his permission. Or some scumball has hacked Joe's PC and is using it as a proxy.
Or maybe Joe's Comcast account is owned and paid by his friend George Sanders, since Joe hasn't had a job in some time.
Just because a packet passes through a router with a public IP leased to Joe, you don't have anything to connect that packet to Joe unless and until you do further detective work. The keyboard does not fingerprint the guy who is typing on it (Lord help me, now I'm giving depraved power hungry madmen ideas).
You may try to make Joe legally responsible for everything that happens on, or via, his computer equipment, but I think you'd run into some political opposition to that kind of police state. Just imagine if someone steals your car and runs down a pedestrian driving it. Do you really want to be the guy prosecuted for that crime?
Duh. Are you serious? That was an expensive project with plenty of manpower. This was one guy and his girlfriend spending a few hundred dollars.
To all you brain dead imbecile moderators out there, whatever parent post is, it's not a troll. Come on, assholes.
The 1TB 2.5" drive that exists is not even a real 2.5" drive; not in any real sense. It is thicker than the 9.5mm de facto standard and WON'T FIT ANYWHERE that a normal 2.5" drive will fit. Talk about dropping the ball.
They have the power. Not the right. There is a difference.
Kudos for publishing the code! Can you comment on your script vs rsnapshot, which is an established incremental rsync based solution which also uses hard links to factor out unchanging files? Rsnapshot is also a perl script, by the way.
Obviously, the answer is "no", and obviously asshole moderators abound.
Obviously the answer is "no", and obviously asshole moderators abound.