Root Access

In a mirrror you write to both drives. So the limit is the write speed of a drive. And 166MB/sec would be nice. Great even for a 5900 RPM drive. But read speeds at 35 or 38MB/sec. That belongs to an old, slow drive

Bob

3:47 AM

@Hennes it's probably writing to the cache

Hennes

Aye, but the cache needs to be flushed.

Bob

the read speed is just sad

@Hennes Don't ask me :P

I'm the one asking the question

Journeyman Geek

XD

Hennes

Unless you have more free memory/disk buffer than your test data, the buffers should just fill up, and then things slow down to disk speed

Bob

hm

I was doing a 500MB test

if it's caching in RAM for whatever reason...

but then, RAM is not nearly that slow

Hennes

3:50 AM

Yes, but say to got 1GB RAM, maybe 800MB free. If I copy 2TB (or any amount way bigger then those 800MB free RAM) it will start to fill those 800MB. Once that buffer is full it can not accept more without writing it.

Cache access to RAM is orders of magnitude faster

Bob

@Hennes Yes, but I have 8 GB of RAM. If this were a RAM cache with no size limit, this would not be so slow (100MB/s is slow for RAM... isn't it?)

Hennes

100MB/sec is HDD speeds. RAM is literally orders of magnitude faster

Bob

as for the 35MB/s, when I say 5900RPM i meant "green"

Journeyman Geek

eww

Bob

...which is why I'm going to replace them with nice shiny 7200RPM drives :P

in fact, I'l go do that now

Journeyman Geek

3:53 AM

ooh

Bob

if I suddenly disappear, that means the RAID failed :(

Journeyman Geek

they are releasing a minecraft port for the raspberry pi

Bob

ok, hot plugging, let's go

Journeyman Geek

considering it has trouble running on some modern laptops...

Bob

@JourneymanGeek o.O

server or client?

Journeyman Geek

3:55 AM

apparently client

though I suspect its a port of the phone version

Bob

ok.. wut.

Hennes

Assuming reasonably standard memory (say DDR3-1333, not to old, not to new) you have a bandwidth of 10666MiB/sec.

Journeyman Geek

games.slashdot.org/story/12/11/24/2334209/…

Bob

@Hennes sounds about right from my last memtest

ah crud

Journeyman Geek

ahh makes sense

Bob

3:56 AM

why are my SATA ports under my graphics card?!

Hennes

Because that way you can load movies really fast. :)

Seriously though: WTF. Why not at the edge of a motherboard.

Bob

@Hennes they are

just happen to be at the end of the PCIe x16 slot

which happens to have a slightly long graphics card in it

Hennes

I think I got all my SATA ports at the edge of the motherboard. Out of the way of add-in card. Good for cable management. Hard tor each once the case is assembled

"The amusing 'but does it run Crysis?' question has a cousin:

Huh

When was that ever amusing?

Bob

my case is a mess of cables

oh, so that one is port 1

heh, unplug random disk and let RST tell me which it is cause I can't read the port markings on the MB

oh damn

I bought the SATA cables but forgot the molex to sata power adaptors

Hennes

The last time I unplugged drives (to vacuum clean the case) I marked which cable they where on. I messed up.

Luckily it did not matter to which cable I connected them.

Bob

4:06 AM

it matters here :\

Journeyman Geek

6:29 AM

aww crap

the charger for my electric screwdriver is missing

Journeyman Geek

8:54 AM

found it :)

Bob

10:13 AM

there we go, one drive transferred with no drama

I hope the other one goes well

Bob

10:24 AM

well, my computer just randomly restarted o.O

apparently unplugging the front fan has a 25% (empirical) chance of restarting the computer

Sathya

These links aren't for my mac, because the battery is different than normal laptop. New MacBook Pro have different battery. — Alessandro Minoccheri 2 mins ago

k

Bob

sigh

aren't they using LiPo?

@Hennes Getting 150 read, 75 write (sequential) on the new disk :D

rebuilding the other half now, hopefully it won't be much slower than a single disk

it's been quiet here today

Sathya

10:52 AM

@Bob yep

Journeyman Geek

o0

@Bob: unplugging it with the computer on or otherwise?

is it instant or does it take a while?

Bob

@JourneymanGeek no clue

Journeyman Geek

>_>

Bob

next time I glanced up

the computer was on the BIOS splash screen

so probably tripped the reset switch or whatever the wiring equivalent is

I probably bumped the power/reset switch wires :P

Journeyman Geek

lol

thats plausible

those are momentary switches

HackToHell

11:07 AM

Ell

11:36 AM

Hi guys :)

who's up for a challenge?

Journeyman Geek

mew?

Ell

I have 2 monitors connected to my nvidia graphics card, and one connected to my intel integrated graphics card. I have nvidias binary graphics drivers installed, and the 2 monitors work as expected. Alas - my 3rd monitor only works when you do "crtl + F1" (aka a terminal)

getting this to work should be fun :P

it means I have to be running the nvidia driver as well as the intel one at the same time, right?

Journeyman Geek

11:57 AM

what OS?

what sorta computer? I think a lot of older, pre SB systems don't let you use the onboard and external cards at once

Ell

its linux mint 14

and a sandy bridge i5 2500k iirc

I think I have to write a new entry in xorg.conf, but I'm not sure what the intel driver is called o.O

Journeyman Geek

ahh

hmm

I'd ask that as a question, i guess ;p

Ell

on the main site?

Journeyman Geek

that is a wierd one

yesh

Ell

I thought having to write your own xorg.conf was common?

what should I ask? just the name of the intel driver, or about my whole situation?

Journeyman Geek

12:02 PM

not really

whole situation, else its a X-Y problem ;)

Ell

right okay :)

what I find strange is that in xorg.conf, there is only one monitor definition

Journeyman Geek

least on ubuntu, xorg.conf is empty by default ;p

Ell

I think I might have a go at writing my own xorg.conf first. It'll be a challenge ;)

ahh I think it's i915

Tom Wijsman

@Ell: I wrote my own, alternative is to use xrandr if your driver supports that. Since it is Intel, it probably does.

Ell

12:17 PM

right

i've written a test one, wish me luck :P

Ell

12:30 PM

aghh this didn't work :P

now I have a single 640 * 480 display across 2 monitors haha

I can't for the life of me get this integrated monitor working >.<

is this sdown for you? x.org/archive/X11R6.8.1/doc/xorg.conf.5.html

Graham Wager

@Ell 503 Service Unavailable

Ell

ahh it's just come back up

Journeyman Geek

its a laptop?

Ell

12:47 PM

No, a desktop

Journeyman Geek

integrated monitor?

Ell

0

Q: Multiple Monitors With Multiple GPUs on Linux (nvidia & intel)

My setup is as follows: Linux Mint 14 x64 Intel Core i5-2500k GeForce GTX 560 Ti Cu II A monitor on the far left connected to the motherboard (integrated graphics on the i5) A central monitor connected to the graphics card A monitor on the far right connected to the graphics card My current x...

Tom Wijsman

@Ell It's up and you probably should upgrade to a more recent version like x.org/archive/current

Ell

^details :3

Tom Wijsman

And does it work without a config?

Ell

12:53 PM

errm I haven't actually tried without a config

I will try now

updated the question

I get a mirrored screen of 1024 * 768

Einsteins Grandson

2:05 PM

anybody here?

Hennes

2:26 PM

Morning all

Journeyman Geek

2:45 PM

nothing here but us sheep

Bob

@JourneymanGeek baa

Journeyman Geek

;p

Einsteins Grandson

anybody has an experience with ORACLE database?

Which one of these are free for downloading?

Journeyman Geek

lol

Einsteins Grandson

* Express Editon*
* Standart Edition One*
* Standart Edition One*
* Enterprise Edition*

Journeyman Geek

2:49 PM

I THINK express is free

Einsteins Grandson

all of them?

Journeyman Geek

the tools for working with it are free though

express edition

Einsteins Grandson

i know that express is free, how abouth other editions?

Journeyman Geek

get datamodeller and sql developer

not free;p

Einsteins Grandson

what?

so what is free and what is not?

Oracle SQL Developer Oracle SQL Developer Data Modeler?

both of these are free also?

i don't need to use it

only study and make a really little project for an university course

Hennes

2:52 PM

Just about all my answers for the last two days have only been on serverfault.com/questions/451238/…

The loner it takes the more convinced I am that it was a damn good question

Journeyman Geek

those two are free

and used for working on, and designing your database

datamodeller does an ERD and converts it into ddl

Einsteins Grandson

so the combination that i need is: Express Editon + Oracle SQL Developer + Oracle SQL Developer Data Modeler?

right?

Journeyman Geek

yes

you use express edition for the db.

Einsteins Grandson

ok thank you

Journeyman Geek

then you design the db on data modeller, and use sql developer to edit the db

Einsteins Grandson

2:57 PM

great

Oracle is the best right?

btter than MS SQL or DB2 or Sybase....

Journeyman Geek

hm

I actually prefer mysql ;p

Einsteins Grandson

yes

but there are some features that mySQL does not have and Oracle has

Journeyman Geek

do you use them? ;p

Einsteins Grandson

i mean if the company is rich ... they would choose Oracle or Microsoft I suppose

like banks etc

not mySQL

Hennes

I only know two people who do db 'programming (aka sql, view etc).

Both are rather explicit with "mySQL.die.die.die!"

Something to do with the lack of features

Journeyman Geek

3:11 PM

lol

@Hennes: if you're actually programming databases, I guess so

most of the stuff I end up running runs mysql

that said, what i've seen of oracle's tools are great for newbies ;p

Hennes

Those two created and maintained the db with all of stacks administration. dozens of years of transactions (Membership fees, club fees, every single transaction of the bar, buying drinks, over date stuff, actual HW costs etc). The tables grew rather large

It ended up in postgress

Einsteins Grandson

itknowledgeexchange.techtarget.com/eye-on-oracle/…

market share.... Oracle leads, MS is the second one

Sathya

@JourneymanGeek @EinsteinsGrandson All of them are free for development & evaluation. You need a license for putting them in production

Einsteins Grandson

@Sathya ...you mean all of these:

* Express Editon*
* Standart Edition One*
* Standart Edition One*
* Enterprise Edition*

?

Sathya

3 mins ago, by Sathya

@JourneymanGeek @EinsteinsGrandson All of them are free for development & evaluation. You need a license for putting them in production

Bob

3:29 PM

ok, gonna have to take apart my screen again -_-

holding it in just the right place turns the screen red. Great.

HackToHell

4:18 PM

It was their main recruiting poster, hung nearly ten feet up a wall! This means the hackers have LADDER technology! Are we headed for a future where everyone has to pay $50 for one of those locked plexiglass poster covers? More after the break ...

Hennes

6:16 PM

Rabit downvoting time. Take your shot at this question

1

A: Purpose of HDMI output on ultrabooks?

People may want to connect their ultrabook to a larger screen and do some actually constructive work on it. Alter all, an ultrabook is not a movie player.

Simon Sheehan

6:32 PM

@Hennes thats easily one of the dumber questions I've seen all week

Hennes

Aye. I do not like downvoting for no reason. I like to give newish people the benefit of doubt

Not in this case

Simon Sheehan

I don't really downvote. I just close.

Hennes

in hindsight: I could have used 'not a real question'

Simon Sheehan

Apparently I've only downvoted 23 times in total.

Sathya

@SimonSheehan you should downvote more

Simon Sheehan

7:53 PM

@Sathya Probably. Usually if a question/answer sucks I'll VTC/edit it, and sorta skip the downvoting process. But you are right

Bob

10:06 PM

@Hennes Well, it looks like those horrible speeds (~35MB/s) were a combination of the 'green' drives and RAID :S

7200RPM drives in RAID 1 reach about 150 (and about the same individually)

the 'green' drives individually reach ~120

read speeds*

bleh

Hennes

Well, green drives are optimised for quite different tasks than other drives.

Or, in WD case, than black or red drives

Bob

10:31 PM

@Hennes still quite a drastic difference

actually, might have something to do with a misreported sector size

Hennes

Aye. And good to know that the 'not optimised for' can make such a big difference

Bob

all these drives have 512 byte logical sectors, and 4k physical

Hennes

I mean, I can assume ti should be the case, but RL experience does not always match my assumptions

Bob

but the green ones reported 512 physical in RST settings for whatever reason

which might have screwed up whatever optimisations RST might have tried

Hennes

All initial AF drives used to report 512bytes/sector used and '512 b/s real (the latter being a lie)

Jared Tritsch

10:36 PM

yeah, I made the mistake using greens in a raid 5, boy was i in a world of hurt. finally i gave up and swapped em all out for blacks and it was almost a 3x improvement on R/W speeds

Reds might even be better

or, better yet, buy Seagate barracudas. shameless employee loyalty brand plug

Khromonkey

guys

i need help

Jared Tritsch

sup?

keep in mind, by saying you need help, you agreed to my EULA

Khromonkey

i used unetbootin to install mint

Jared Tritsch

I now have ownership of your souls.

Khromonkey

but it didnt do it right.

So what happened is i got my hdd partitioned and didnt install anything

I lost 250 gb

Jared Tritsch

10:39 PM

k

Khromonkey

how can I get them back?

Jared Tritsch

let me see if i understand

you have a HDD of X size, and when you installed mint, your end result partition was X-250gb?

Khromonkey

yes

but mint didnt install

So I have 250 gb less and no mint

Jared Tritsch

.....? then how do you know that the partition is a different size?

nvm

reinstall mint again, but just delete the existing partitions and create a nice, squishy new one of the whole disk.

Khromonkey

but if I do that i will lose my windows

what do i do?

Jared Tritsch

10:43 PM

oh. you didnt mention the other partitions

Khromonkey

This morning I had all of my hd on windows.

ABout an hour ago I decided to try out mint

Jared Tritsch

okay..... i need more info. boot into windows, open disk manager, screenshot the drive and post

Khromonkey

i downloaded it and selected (install alongside windows)

It started to do its thing and then it said.

Failed to install grub

Jared Tritsch

sounds like you have two problems

Khromonkey

and when I tried to install it again I had 250 less gb

Jared Tritsch

10:45 PM

but first things first, i need to see how your partitions are arranged on disk. boot to windows, open disk management, and screenshot

Khromonkey

the green part was the partition i made

Jared Tritsch

what are those smaller partitions at the start and end?

Khromonkey

i dont know

But they are only like 20 gb put together

what do i do to put the green and blue one together?

Jared Tritsch

its not the size, that concerns me but the placement

you can only create partitions in a continuous line.

Khromonkey

what?

so what do i do?

Jared Tritsch

10:56 PM

hmm

you could delete green and blue, then install mint into the empty space, but that would only get you 187gb

but your other problem is you have a bad installer

what are you installing from? USB?

Khromonkey

yes

with unetbootin

Jared Tritsch

mint (like many flavors of linux) has a REALLY hard time installing from certain USB drive.

burn the iso to a disk. much more likely to succeed.

Khromonkey

i dont have a disk

Bob

@JaredTritsch by 'green' drives, I meant Seagate Barracuda Green. Not WD Green.

Moved to Toshiba for now (all else being equal with the equivalent Seagate; it has a 3x longer warranty)

Jared Tritsch

@Bob my point was you need constant speed drives

7200 or better.

Khromonkey

11:07 PM

@JaredTritsch what os are you using?

Bob

@JaredTritsch I still think the main issue was the misreported physical sector size

I dunno, with all the recommendations to use 2x the physical size with the dd family of tools, I assume that would be faster. In which case, if RST is optimising for a multiple of 512 bytes, well...

Jared Tritsch

hm. idk

Khromonkey

dude

what os do you use?

Jared Tritsch

I use windows

but i have dualbooted *nux many times.

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