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Bob
6:00 PM
plus sleep and charge from a USB 3.0 port
 
the battery in the razr maxx hd is not field replaceable >_> you have to use a USB external battery if you want more
 
I also have a portable universal solar cell charger but the solar cells only can charge the internal battery so much
Better option for camping or something :P
 
Bob
fully charging my phone barely puts a dent in one laptop battery :D
 
hehe yeah laptop batteries really are the best way to go :p
 
Bob
@allquixotic prob is, it's nowhere near as efficient to convert from the charger's 3.7V to 5V then back to 3.7V...
 
6:01 PM
i'm planning to carry at least 20,000 mAh around with me in external battery when I go on vacation in June
 
Bob
lol
 
open for suggestions on what to buy
obviously space and weight are the major constraints
 
Bob
I carry about 35,000 mAh @ 4V around with me every day :D
 
@Bob yeesh
 
Bob
of course, most is used to power the laptop
but still :p
 
6:02 PM
@allquixotic Well anyways, what I did, you could do. (with the battery case)
 
Bob
AAs just aren't efficient
those little portable chargers cost an arm and a leg for maybe 2000 mAh
even a small netbook with sleep and charge and an expanded battery or two would be far better
 
They can be charged separately, (which I did) and they charged my phone probably about as quickly as an AC adapter. They just got hot when doing so.
 
Bob
huh
still absolutely useless. 1000mAh? you're kidding, right?
2
..there's an Informed badge?
 
6:19 PM
@Bob Huzzah! I got it :P
 
hahaha I carry around about 1,650,000 mAh @ 0.01 V :D (P = I^2 * V)
 
Fancy page. How old is it?
 
or just 1.65 MAh @ 0.01 V
 
Bob
@allquixotic well, I assume that one is @ 5V, considering it's a USB charger
 
@Bob yeah 5V although i dunno what voltage the smartphone battery emits
 
Bob
6:21 PM
Smartphone batteries (Li-ion) are nominally 3.7V
 
@Bob USB/AC adapters are cheating. That's not stored power :P
 
Bob
mine registers 1% at about 3V, and fully charged at 4.1V
 
oh ok, then it's a lot less
 
Bob
@BenRichards I'm talking about that portable 1000mAh one
 
@Bob Ah :P
 
Bob
6:22 PM
so it's a fairly wide range
 
still 12.21 MAh @ 0.001 V (assuming an ideal transformer) -- can you tell I like big units
 
Bob
lol
 
or 0.33 mAh @ 33000 V
 
Bob
how about we keep the scale relevant? :P
@allquixotic not quite enough to kill
 
yay, I could use an ideal transformer to ramp up my smartphone's battery to 33000 V and send a tiny bit of energy down a catenary cable to a train to make it go about 2 millimeters down the track
 
6:25 PM
@allquixotic Isn't electricity fun? :P
 
Bob
huh. that's interesting
 
@BenRichards yes, except when it's not
 
Bob
apparently the range for death-by-fibrilation-from-electrocution is quite small
 
Hi!
I'm looking to figure out a backup solution
I found a decent-looking RAID box, with hot-swappable drives for easy off-site at night
the company suggested RAID 5, with a hot-swappable duplicate
but when I look at this acnc.com/raidedu/5
it says "Difficult to rebuild in the event of a disk failure (as compared to RAID level 1)"
does this mean it's a poor backup solution?
 
@Bob so the Emperor in Return of the Jedi asked his midichlorians to set his Vegeta power level to "over 9000" microamperes -- at first very painful and eventually enough to kill had Vader not intervened. nice that he has such fine tuned control over his amperage
(and yes I wrapped about four memes into that one chat line)
 
6:31 PM
"Difficult" as in takes a lot of time is fine with me. "Difficult" as in loss of data if a drive fails is not ok
 
Bob
@Almo "RAID is not backup"
 
RAID is not backup I know
 
Bob
that said, RAID is good for recovery in the event of a hardware failure
 
I just want protection from drive failure
the backup is the offsite component
 
Bob
good, good :P
 
6:31 PM
:)
 
@Bob AFAIK, death from electrocution occurs only if it crosses your heart and paralyzes the muscles for a long enough time to starve the blood of oxygen. Or severe burns.
 
so why does that site say it's difficult to rebuild if a drive fails with raid 5?
 
Bob
you know, I'm normally on the other side of the discussion
@BenRichards at least according ot that site, it's fibrillation that does the most damage
 
@Almo Restoring RAID 1 is just "copy the data over". RAID 5 requires restoration of the data from all other drives.
 
it's amazing but the heart is actually heavily based on electricity to keep its rhythm
 
Bob
6:34 PM
@Almo I guess it might take longer - you have to calculate the missing data as opposed to a straight copy
 
@Bob Yeah, I do seem to recall that electrocuting the heart does damage to the cells
 
But it wouldn't lose data right?
otherwise what's the point of raid
 
In this example of RAID 5, you can see that restoring e.g. B3 after a failure of the fourth disk requires reading B1, B2, and Bp to determine what B3 is.
 
Bob
Also, (Wikipedia):
 
ah ok. so they're just warning it's a slow operation
 
6:34 PM
Which is why I remember reading about defribillators possibly causing more damage to heart attack victims. I tried finding the article though and couldn't. Couldn't remember where I read it.
I could also be completely wrong :P
 
@Almo There's always a chance of another drive failing during the (heavy load) restoration, but other than that, no.
 
Bob
> Rebuilding a RAID 5 array after a failure will add additional stress to all of the working drives, because every area on every disc marked as being "in use" must be read to rebuild the redundancy that has been lost. If drives are close to failure, the stress of rebuilding the array can be enough to cause another drive to fail before the rebuild has been finished, and even more so if the server is still accessing the drives to provide data to clients, users, applications, etc.
> Even without complete loss of an additional drive during rebuild, an unrecoverable read error (URE) is likely for large arrays which will typically lead to a failed rebuild.
> Thus, it is during this rebuild of the "missing" drive that the entire RAID 5 array is at risk of a catastrophic failure. The rebuild of an array on a busy and large system can take hours and sometimes days. Therefore, it is not surprising that, when systems need to be highly available and highly reliable or fault tolerant, other levels, including RAID 6 or RAID 10, are chosen.
 
RAID-6 is a bit safer
also, when you are building serious RAID arrays, never take drives from the same production line produced around the same time
 
Bob
in that you can suffer two drive losses safely...
 
@Bob That's why my NAS is RAID 6.
 
6:36 PM
slightly different model numbers or firmwares is ideal
this will "chop up" the MTBF and ensure that drives fail at different times
 
ah good advice
 
some even use disks from different manufacturers with the same capacity
 
Bob
@BenRichards they should only be used in the event of fibrillation
not all heart attacks
@allquixotic some use some second hand disks
 
This will be a small one to back up work at a boardgame company
 
Bob
which are more likely to fail - spaces failures out a bit more
@BenRichards most defibrillators come with some form of sensors and will only shock when they detect fibrillation
 
6:37 PM
@Bob You know what I mean.
 
i think my dedicated server with Hetzner has one brand new disk (when the server was originally brought online) and one disk with about 1000 hours of previous powered on time
 
They were saying how they damage the heart and do the opposite of what they intent more often.
 
it's RAID-1 so one of them will fail, I'll get an email, and get Hetz to replace the downed disk
 
Bob
@BenRichards yea, I'm just saying random defib shocks are bad
 
ooh raid 6 does look better
 
Bob
6:38 PM
but in the case of actual fib, they would help
 
Right
 
@BenRichards especially when people don't understand how to use them and just take them out of the case and are like ... using it too much or when it isnt warranted
 
Bob
that's the entire reason for the sensors :P
 
untrained person + defib + person who's unconscious for some unknown reason == bad
 
Bob
defib can cause fib in some cases
 
6:39 PM
my dad has atrial fibrillation -_- hope i don't get it when i'm older
i really need to lose weight.
 
can you recommend a good brand of raid box?
 
The article I read was about using them in hospital settings, though, but yeah.
 
looking for something that will support OSX
 
idea: someone should throw away all possible ways that i can charge my phone from a wall outlet, or hide them from me
then
give me a charger that converts somehow my kinetic energy from running to powering my phone
run run run, connect to internet for 15 minutes, run run run
maybe a hamster wheel for me to run in
 
@allquixotic I use Qi to charge my phone at night. It's pretty awesome. :P
 
6:41 PM
@Almo OS X? have you tried Apple's -- er, nevermind, just realized those are like $9000+
 
Yay for inducted current!
 
hahah $9k ouch
 
i think Bob said it best, he had a hugely starred pithy post a while ago that said "Go away Apple"
 
But Windows sucks
ducks
 
@Almo What's a 'raid box'?
 
6:42 PM
anyway thanks for the tips
something like that
a box where you put in drives, and connect to it from other computers to store data on it
 
Essentially an external hard disk or NAS, depending on how you connect.
 
yeah that
 
Mar 6 at 14:31, by Bob
go away Apple
 
Bob
@allquixotic that was specifically in relation to some AirPort thing lacking a web admin interface and requiring a native program to configure it. which is stupid. it's a freaking access point/router - what if I wanted to use it with a phone only?
though I do hold that sentiment for Apple in general, at this point :P
 
I use a Synology Diskstation 1812+ or so NAS with a Macbook Pro and am quite happy. For it to be fast, you need to connect using SMB though: It supports AFS but is slow.
 
6:46 PM
I put that petition up
only 1.1k signatures :(
 
Bob
@BenRichards dunno then :P
 
There might be some Thunderbolt devices that allow you to connect fast disks to one host, but your use case doesn't sound like you need the bandwidth.
 
yeah. I want Apple to go away; I want Google to remember not to be evil; and I really want to love Microsoft, but they keep showing that "evil overlord" side often enough to remind me that, while they may have some pretty awesome engineers (hey, the guys who designed Surface, they're geniuses), they're still a greedy corp.
 
@Almo "Apple Product Feedback"? I'm pretty sure nobody's reading that.
They don't even read bug reports.
 
Bob
@DanielBeck I've never heard anyone say SMB is fast...
o.O
 
6:48 PM
@Bob You haven't tried Synology's AFP then :-)
 
Bob
@Almo Isn't it based on BSD? Can't you disable mouse accel at a lower level? Or is it all handled by Darwin or something? (I admit to being clueless here :P)
 
so would it make sense to have a RAID 6 and swap out a drive for off site backup every day?
 
Bob
@Almo Swap out a drive?
Nonononono.
 
mouse accel used to be easily disabled with some program called mouse fix
then they hid the api
so USBOverdrive does it
 
Bob
A RAID5/6 array does not mirror the disks.
 
6:50 PM
but it doesn't work with new apple mice since they hid the event structure or something
 
Bob
Each disk stores 1/x (where x is the total number -1, -2 for RAID 6) of the data
 
ok so how do I actually do this offsite disk swap thing
 
Bob
And the extra disk(s) are used for parity data
RAID 1 would mirror, but it is not designed for a disk to be pulled out daily
the disk you pull our would be left in a bad state, anyway
 
I pull a RAID 1 about every month at home. is that stupid?
 
Bob
you need some full disk cloning tool
or, really, any general backup program
@Almo not a particularly good idea
I mean, unless you're testing to make sure it's working
 
6:52 PM
I have 3 drives, 2 in the raid
 
Bob
which is good. uyou don't want to be caught with your pants down if somethign fails.
 
once a month I swap one out, and take it somewhere else
 
Bob
but pulling out a disk is not a good way to get a backup
clone the disks properly
 
so I should put in the offsite disk, then copy from the raid to the offsite?
 
Bob
the one you pull out could easily be mid-write
 
6:53 PM
I pull it out with the computer off
then put the new drive in, and put it into the raid and it rebuilds
 
Bob
@Almo more or less - put in an additional disk and use a disk cloning tool.
 
ok
will start doing that
so I can do that for our offsite then right?
 
Bob
If you're on Windows, Acronis True Image and Macrium Reflect are pretty good full-featured backup programs.
dd is the basic tool for disk cloning for *nix
there's plenty more
 
use RAID 6 for redundancy, and copy from the RAID for the offsite
 
Bob
@Almo yes
 
6:54 PM
ok got it!
I feel better understanding this more
 
Bob
if you wanted to pull drives, RAID5/6 would not work anyway
 
ok
 
Bob
since no one drive contains all the data
 
ah right
 
Bob
there's a couple of diagrams on the Wikipedia page that show it
 
6:55 PM
saw those, but didn't fully understand the ramifications
 
Bob
thing with cloning disks is that it can complete at its leisure
 
right
and the raid is not compromised
 
Bob
rebuilding RAID is normally marked high priority, since it's quite risky to have a damaged array (normally)
that kind of rebuild can affect performance for other applications
and, of course, if something fails mid-rebuild you're going to have downtime
 
7:19 PM
O_O I just popped a piece of Trident gum out of its packaging and it went flying into the air like a home run baseball and came down like 5 seconds later
the plastic piece that bent to open the little pouch it was in must've acted like a catapult
-_- I'm helping a coworker with Microsoft Forms 2.0 UI design
he has Visual Studio 2010 installed on his computer
and he's using ~1997 era ActiveX forms
in VBA
 
Hey, is there a way to add a program to like a "pre-approved list" of stuff that needs admin rights, but can always run without UAC and admin prompt everytime?
Like, we have a user, whom is a standard user, which we'd like for him to be able to run an admin program everytime he wants, but without us having to type a PW for him every time.
 
16
Q: Selectively disabling UAC for specific programs on Windows 7

Mehper C. PalavuzlarI have some programs running on start-up like Everything. UAC prompts every time the Windows starts. How can I set a program to make sure that no intervening prompt would appear during start-up?

Does that help? I guess it won't ;D
The answer is always "Task Scheduler"
 
@OliverSalzburg how would that work, with passwords?
 
@studiohack you could write an app that always starts when the user logs in, runs as SYSTEM, and accepts IPC commands or something to specify what child processes to start :P
 
I can't write a line of code, sadly.
I want to.
 
7:38 PM
@studiohack You have to set the credentials when setting up the task
 
@OliverSalzburg oh, right.
 
Then the user can start the task with the pre-set credentials
But it's a really weird solution :P
 
we've tried it (my boss), and it doesn't work. I'm not sure why, since I wasn't around when he started it
 
@studiohack learn :) we'll help
 
7:53 PM
@studiohack Maybe this helps? ghacks.net/2010/07/08/…
 
@OliverSalzburg passed it along, thanks! I'll see what he thinks.
 
8:13 PM
Hey guys. Are you aware of incompatibilities between Soluto and Ninite?
I mean, "File not found" doesn't sound like a Soluto/Ninite incompatibility problem but Ninite through Soluto works and Ninite on its own goes "File not found."
(I have no idea what file it is it didn't find)
 
8:39 PM
Nevermind. The seventh time it worked.
It failed at UAC elevation.
 
@badp getting "File not found" for a failed UAC elevation is akin to driving your stolen car into the dealer for engine repair, and the dealer says, "What engine? This car doesn't have an engine. I have no idea what you're talking about."
 
wat
 
apparently he is a car thief.
 
You wouldn't download a car.
 
apparently people fail at analogy
(or understanding them)
 
8:52 PM
yeah, I failed to understand that car analogy. I'm afraid I haven't been on Slashdot enough
 
Remember "You wouldn't steal a car" from the MPAA anti-piracy commercial? Guess what, the @MPAA stole all my cars. http://t.co/WFnTcJEd
 
9:02 PM
@OliverSalzburg hi Oli
 
9:21 PM
That dude just makes the best reviews
 
 
2 hours later…
hhh
11:38 PM
Sorry is there anyone using W8 that could instruct how to get the normal desktop back? There was some shortcut but for some reason nothing seems to work...
 
@hhh That problem description isn't the best ;D
If the Desktop tile is missing from your start screen, I would assume you can find a shortcut through the search
 
11:51 PM
@hhh Windows+D
 
hhh
Thank you, solved.
 
You're welcome. Vote for Luke!
/me darts off into the night
 

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