TechBits 2 - RAID Explained (part 1 of 3)

[Paddy8D]

For some one who is so grammatically correct you should know its raid not raid array

[nevraXmike]

Great info. thanks

[Cyberpirate2]

Quick question, I'm thinking about getting an ASUS G53JW or a similar model. It has two hdd bays so I was wondering. If I bought an ssd as my OS drive and used a 500gb 7200 hdd as my storage for my games, would I be able to play them with this config. I read this laptop has no raid support so I'm not sure if what I want to do will work. Thanks in advance.

[kt19961996]

You Rock !!!

[zacheryandersen]

I setup my raid 0 via bios and raid setup but went I go to start Windows it stops a few seconds into the start up screen then flashes a blue error screen.

[NsMs96]

how identical do the disks have to be to run in raid0? and can i buy another hard drive and just set up the raid or do i have to reinstall the os?

[sciguy14]

@NsMs96 As Identical as possible. And you would have to reinstall the OS, yes.

[encore88i]

you're hot!

[ComboBreakah]

Quick question if you dont mind. Would i be able to boot my OS from a single SSD and set another 2 hard drives as raid for recording fraps and storage?

[sciguy14]

@ComboBreakah Yes, just make the SSD the first boot device in the BIOS.

[costumATX]

Great videos!

[grooveclubhouse]

very nice. building my first rig here and want to go raid 1. Im guessing that I would have to connect the two drives first go into my bios and enable raid 1. then install my OS.

[sciguy14]

That's correct.

[grooveclubhouse]

easy as pie man. just got my drives all in order and im rock'n now. thanks for the help.

[sciguy14]

@grooveclubhouse glad I could help!

[charlieccc]

Hey thanks for the video! Could I have a bunch of USB hubs and connect them all up with external USB hard drives have that work as a big RAID? As software RAID needs processing, what point would you say the performance is seriously effected? (on a standard computer)

[sciguy14]

You can't really do RAID with USB drives.

[sciguy14]

right

[Thunderclap23]

what do you think of the abit ic7 max3

[sciguy14]

im not familiar with it, sorry

[J0RDSKI]

i need to learn all of this lol, how did you learn it? self taught or what and how, message me plz would appreciate it.

[sciguy14]

self- taught/ the internet

[llerena40]

hey i just finished my new built and i just have 1 Hardrive what mode should i use in the BIOS? plz help me out!

[sciguy14]

IDE

[MaxGardis]

and your point is?

[jimmydrive]

First, thanks for the videos & also taking the time to answer viewers questions.

I currently have 2 drives - WD 320gb & WD 1tb. I am looking to buy 2 WD Velociraptor 300gb drives. I want to run the 2 Velociraptors in raid 0 (for performance, gaming). Is it possible to run the 2 raptors in raid 0 & still keep my other 2 drives seperate for storage?

[sciguy14]

Yes, I do that on one of my machines. Set the HDD mode to RAID in the BIOS. Then go to the RAID config, and setup your two velociraptors for RAID. Just don't touch the other drives and they will continue to work independently.

[EDKsurly]

If I run 1 HDD, then upgrade to a raid configuration, do I have to reformat the original drive?

[sciguy14]

yes

[dirtyboy508]

So If you are using 1 HDD and want to use Raid 1 you will lose all your data on the boot drive or will it just copy to the other?

[sciguy14]

No, you still need to reformat.

[gothdude6667]

and im assuming that goes the same for raid 0 correct? i have one hdd, and want to go to 2, so i will need to back up my files b4 i do it?

also, do the hdd's have to be the same brand and size?

[sciguy14]

correct.

They don't have the be hte same brand, but ideally they should be. They should be the same size.

[jkon1977]

Im lost, lol. I currently have 1 HD, WD Velociraptor 300gb, and want to add another HD, 1Tb WD Cavier, now do i just connect new hd just like i did the 1st and thats it ? No setting up nothing in bios ?

Just need more space but still want my pc fast, check out my vids on my 2 spedo cases with R2E & Evga Classfied. Anyone PLEASE Help, also it does not matter where i connect my sata cables to mobo, right ? Can conenct to any of the slots on mobo ?

[sciguy14]

Yes. Connect it to any slot. If you aren't using RAID< then you don't really need to configure much.

[abc56975314]

Also for RAID 1 could I have a 500GB 7200RPM and say a 320GB 7200RPM?

[sciguy14]

Yes, but you will only be able to use 320GB of the 500GB drive.

[abc56975314]

If I only have 1 HDD and it fails would I have to get a new hardrive and another copy of OS?

[sciguy14]

If it suffers a hardware failure, you will have to get a new drive. For the OS, you should be able to re-use the same license on the new hard drive.

[myjpkl]

Does the hardware raid on motherboard scaleable? meaning I already have say 2 hd as raid 5 and i purchase another 1 later and added in ( i heard it must be same model/size)?

[sciguy14]

1. Raid 5 must have at least 3 disks, so what you described isn't possible.

2. Even if you did start with 3 disks and wanted to add another, you generally cannot do that you. You would have to format and recreate the array.

[madog28]

dude i love your videos lol im a huge fan of hand gestures :)

[sciguy14]

Configure for RAID by hitting the appropriate button to enter RAID config at startup. Then just let the OS partition it when you install.

[naruto30002]

I have a mobo that supports Raid 0 and i want to set it up but im not sure how should i format my drive and they in bios start it

[technocp]

that was really very helpful can you also suggest me some specific RAID documents over Redhat Enterprise Linux

[sciguy14]

If you do hardware RAID, it doesn't matter what operating system you are using. You can use Disk druid in Redhat during setup to do software RAID.

[thepineapple1]

my advice to anyone considering RAID(string) or having it now...do NOT do it...its is completely unreliable...ive had it twice...the 1st time,,,it simply short circuited my hard disks...and demagnitised them...2nd time (3 hours ago)....restarted my pc....and thats it...in a 6 months time laps....unreliable 100%

[sciguy14]

RAID cannot short-circuit or demagnetize hard discs.

[thepineapple1]

my bad...what i meant was,because of a small short circuit...my HDD's (which at the time where in RAID 0) went from full....to useless.

[sciguy14]

Ok, but that is not the fault of RAID, that the fault of something totally different. If you are going to use RAID 0, you have to have a backup if you don't want to loose everything on a single disc failure.

[dumpkernel]

why do you clear your throat too much-this vid is annoying.

[sciguy14]

Sorry about that. I had a cold when I filmed this.

[JebusOwns54540]

hey leave him alone hes doing his best!

[thelethalmoo]

lol just a bunch of discs first time i heard it i didn't believe it and i still find it funny x/

[ramanglass544]

same here

lol!

[PeLvInSDiStUrBeD]

isnt that the music for Cheat on G4

[sciguy14]

it is similar, but it's not the same.

[omario9333]

hey sciguy

[ChIkEnAtEmYdOnUtS]

I currently run a hard drive RAID array (2 500Gb drives in RAID0). I like it. :)

[sciguy14]

I have the same setup on my computer at home :)

[ChIkEnAtEmYdOnUtS]

Yeah, I watched that video. That's actually where I got the idea from. Ehehe.

[sciguy14]

haha cool

[paerchu]

raid0 is preferred due to hi-fast performance... but it is unsafe... I'm running 2 250GB western digital caviar SATA @ RAID0-lol for gaming.. unlike RAID5+1, incase your mirror is broke, you can recover it unlike RAID0. lol.

[sciguy14]

I talk all about that in part two of this video :)