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Comment Re:ZFS is nice... (Score 1) 267

IPMI 2.0 includes serial over LAN, but that's text only console redirection. If you want graphical console redirection, you need to use a proprietary tool from your vendor,

I... don't. Why would I? Both Linux and Windows (since 2003 with EMS) lets you do any system fixing & reconfiguration you could want, via serial console.

With OoBM, you really only need to get your system booting again, and network reconfigured and working. After that, you connect via in-band management, whether that's SSH, RDP, NX, VNC, etc. It's stupid, wrong, and terribly inefficient to use your OoBM for all your system management.

If you're running graphical Linux, you need graphical console redirection

Bullshit. You mean if you don't have a clue how to manage the basics on a Linux system without the GUI, THEN you're in trouble if you don't have graphical console redirection.

You get power on, off, cycle, read the (hardware) system event log, configure the network settings of the BMC, and console redirection to a serial port. For Dell, you also have to enable redirection via COM2 in the BIOS if you want serial over LAN.

As I said before, IPMI also enables you to change BIOS settings. You can "enable redirection via COM2 in the BIOS" directly & remotely via IPMI, without ever entering the BIOS. It's a simple one-liner. Then you

The "redirection" isn't even really needed, except for seeing BIOS messages on boot-up. Otherwise you just need to tell your OS to enable a console on serial, and you're fine.

Comment Re:ZFS is nice... (Score 1) 267

Yet you can't do what the OP said he needed the video out for - fix OS configuration issues.

Yes you can. Of course you can. I've used IPMI extensively, and have absolutely no idea what you are ranting on about.

UNLESS your mobo manufacturer developed/bought a chip and software to do that for your specific OS,

There's nothing OS-specific about IPMI. There's no "chip" for each OS.

Comment Re:BTRFS is getting there (Score 1) 267

I don't why so many in the Linux community are so hooked on ZFS. BTRFS has a feature set that is rapidly getting there,

I think you already explained it in that first sentence... ZFS has been stable, reliable, and successfully managing huge amounts of data for the past decade (2005). BTRFS is still unstable, not remotely a suitable alternative for ZFS, with only the vague promise of maybe eventually "getting there".

Comment Re:ZFS is nice... (Score 2, Insightful) 267

I don't have a serial terminal, so having video output when needed is very important

So that's three-strikes... You're 1) using a regular PC as a server (no IPMI), 2) that PC doesn't even have a serial port to be used as an OoBM console, and finally 3) you've got some issue with the video card not even displaying text-mode. With all three strikes against your server, I just can't muster any sympathy for the predicament you put yourself in, relying on an unsuitable cheap piece of crap equipment.

In fact it's probably FOUR strikes... Presumably your video problem was an issue with KMS or similar, and 4) you didn't bother to figure out how to fix/disable/bypass it, and use plan old text-mode. Instead you went with the quickest (but obviously flawed and easily breakable) option of depending on a proprietary video driver. That's just not thinking things through. Reminds me of folks who has just a switchable PDU as their sole method of OoBM... works right up until they acidentally do a clean shutdown of a remote server.

Comment Re:ZFS is nice... (Score 1) 267

And even then, IPMI is extremely limited.

I don't see how anyone can claim "IPMI is extremely limited" with a straight face. It does nearly everything you could want in an OoBM interface, except (usually) a GUI. You can do lights-out management, powering systems off and on, setting BIOS/UEFI options like boot device statelessly (not just at boot-up), it can be configured to have a dedicated NIC port, or shared with the OS whether you're bonding NICs or not, gives you a serial console (including BIOS access) over the network. etc., etc.

Comment Re:ZFS is nice... (Score 1) 267

And IPMI console typically requires java. Within a year or so NO browser will support that!

No, you can use serial-over-LAN via native utilities like ipmitool. You're talking about the idiot-friendly web interface a few OEMs happen to include. Most ipmi implementations don't even have any web/browser interface to begin with.

Comment Re:I hate to be THAT GUY... (Score 1) 240

I just read the book. Basic biology is somewhat lacking throughout. But potatoes are one of the few foods you can survive on indefinitely. They contain quite sufficient vitamin C to prevent scurvy.

Sufficient light to grow 'em would have been a problem, but if they can get by well enough to feed a nation even with Ireland's average cloud cover, perhaps a better choice than most crops. Might get one somewhat scanty crop, anyway. (I've seen 'em produce even when all the light they got was what leaked through broken boards into a closed shed.)

The bacteria issue was overblown; Watney could repopulate the whole place from his own colon, even if a large proportion didn't encapsulate as many bacteria do when stressed. And potatoes themselves are hardly sterile.

I did gather the author has never used freeze-dried food, including instant mashed potatoes.

Comment Re:I hate to be THAT GUY... (Score 1) 240

I just got done reading the book about two minutes ago. I have not yet seen the film.

Lots of interesting points about what's scientifically accurate or not... I had complaints every time it touched on biology or food (freeze-dried potatoes are a whole different beast than fresh potatoes.) Having driven in the desert, where dust pits are a hazard, I muttered about that too. Some I could chalk up to "Not Watney's area of expertise" but some was pretty evidently "author just didn't think to check beyond his own lack of experience".

But what I noticed more than anything is that this is a book written for the masses. It is NOT written for an experienced SF audience, and is barely SF -- and then only because it's set on Mars rather than Antarctica. Mars is more dramatic. Good choice. But when I realised this, I stopped expecting ordinary hard-SF rigor from it.

Comment Re:Bad signs for a long time (Score 1) 55

technically Sprint was the first carrier with VoLTE (or VoIP). They inked a deal with Google several years back where your Sprint phone number became your Google Voice number

Obviously that's not VoLTE, and I expect T-Mobile's widespread deployment of VoIP on their handsets predates that, anyhow.

Even Sprint never mentioned that, in relation to their VoLTE plans:

Comment Re: America (Score 5, Informative) 396

> IMHO I think "Star Wars" was actually more for defense from an invasion than to knock down missiles. I doubt it would have worked to do either goal; it's only now that we are developing lasers powerful enough to do anything to a distant flying object.

I worked on the Strategic Defense Initiative (the proper name for the project) in the 1980's. It was most certainly for knocking down missiles, all the math depended on it. As far as working or not, very few people understand the concept of "layered defense". SDI had 7 layers: two Boost Phase intercepts, three Midcourse intercepts, and High and Low terminal intercepts. Each layer only has to deal with what the previous layer missed. Assume, because the actual numbers were classified and I don't remember them after 30 years, that each layer is 60% effective, meaning 40% of warheads get through to the next layer. With 7 layers, only one in 610 warheads hits their targets. That kind of number is "survivable". Japan survived two warheads, and the US could survive about 15 or 20, due to being a larger country. This breaks the "Mutually Assured Destruction" concept, because the US would have plenty of undamaged assets to shoot back with.

But you don't need a fully functioning missile defense to apply leverage to the Russians. If you have only two functioning layers, and they are only 40% effective each, only 36% of Russian warheads get through. They have to build 2.78 times as many warheads to destroy their priority target list. The more functioning layers, and the higher their effectiveness, the worse their targeting problem gets, rapidly. The Russians may be deficient in some ways, but they had plenty of good mathematicians. They could see the threat of a layered defense, and they could not afford to build enough missiles to counter it. They could also not build their own SDI system, because Western technology was generally more advanced. So coming to the negotiating table to reduce missile counts was the only viable option, which is exactly what they did in 1991. In that sense, the SDI program helped win the Cold War.

Whether Reagan himself had a technical understanding of the project was irrelevant. That was between DARPA, Congress, and the defense contractors. As a former actor who did westerns, his job was making speeches other people wrote, and looking tough to the Russians. He was a figurehead for the nation. Tons of smart people did the real work.

Getting back to your lasers, we had two kinds as *advanced options* in SDI, airborne and space-based. Airborne were a boost phase system, designed to shoot at ICBMs while the rocket was still firing. That makes them an easy target, rockets have huge thermal signatures for targeting. But also they are fragile. Heat the nozzle of a rocket a few hundred degrees while operating, and it can easily fail, same for shock heating part of the fuel tanks. You don't have to melt them, just cause a gas explosion as the fuel boils, it does the rest. Space-based lasers were upper boost phase or early midcourse. They could get a clearer shot when the rocket was in the upper atmosphere, or starting on the ballistic trajectory. Physically the rocket was approaching the same altitude as the laser, so the distance was smaller. Both involved megawatt class lasers based on chemical combustion energy.

But remember, these were not the baseline, they were advanced options. And the US was making credible progress in laser technology. So it was not a matter of having them ready to use. It was a matter of the Russians believing the nation that beat them to the Moon could develop high powered laser weapons if they put their minds to it. After the Strategic Arms treaties were signed, the push to develop SDI technologies ended, so they have piddled along for the last few decades, and battlefield lasers and railguns are now entering field use. There was no rush because there was no enemy threatening enough.

Comment Bad signs for a long time (Score 4, Interesting) 55

Anyone who has been paying attention has been scratching their head about Sprint for a long, long time. They seem to make ever technical decision WRONG... and not just wrong, but mind-bogglingly, inconceivably wrong. It seems like they are NEVER looking forward...

Of course they chose WiMax, but they also sat back and had Clearwire do all the work for them... and very poorly. And when Clearwire was failing miserably, instead of Sprint using their tenuous connection to advantage and letting their creditors take the hit, Sprint spent the money to buy them out... a useless network.

Sprint actually had great network coverage... by accident. They bought Nextel, whose 2G iDEN network was every bit as good as the big guys. Perhaps because of the lower frequency, 800Mhz spectrum, you could get a good signal EVERYWHERE. Sprint was required to keep it running under terms of the merger, and sold cheap access to it as Boost... When they were allowed to shut-off iDEN, it was a no-brainer to use the frequencies for their new LTE radios, but instead they announced they'd use them for their CDMA/3G network... Existing phones couldn't use the frequencies, and people aren't looking for good coverage on their 3G network, today. It made no sense.

Then Network Vision came along. Sprint was going to basically replace all the equipment in their entire cellular network... Awesome... Except with all that work, they were just replacing legacy equipment to keep it operating cheaper. It seems crazy they didn't include installing LTE on all their towers as part of the project. It was an obvious opportunity to get them back on a good footing, and they squandered it.

And on a similar subject, they announced they weren't interested in deploying VoLTE, yet. A perfect opportunity to get people off their legacy 3G network, so they don't have to spend money upgrading it and can focus on LTE, and they say no, folks should keep on making calls over the old 3G network.

Their pricing is insane, too. They've got rock-bottom prices for MVNOs, but sign-up for Sprint direct, and their prices are nearly as high as Verizon/AT&T, despite their horrid coverage, speeds, etc.

They're a perpetually backwards company, and mystifyingly so. Obviously always taking the wrong steps, which is why they've fallen behind tiny T-Mobile, which simply hasn't been so idiotic.

Comment Re:How much will it cost. (Score 2) 397

Not everybody lives in a house. In fact, in some cities, very few people do.

For the past year in California, landlords MUST allow tenants to install EV charging stations... It doesn't matter whether you live in a house, condo, apartment, etc., you can plug-in your car.

"Falling in love makes smoking pot all day look like the ultimate in restraint." -- Dave Sim, author of Cerebrus.