RAID levels 0, 1, and 5

RAID 0: gives a great performance increase while not sacrificing HDD space but doubles your chance of catastrophic data loss when one disk fails.

RAID 1: gives a great performance increase but sacrifices HDD space cause all drives are mirrored.

RAID 5: strips your data across all drives at a block level while writing back up information known as parity data distribution which is written across all disks in the array.

Category:

Entertainment

Tags:

• what
• is
• how
• raid
• works
• level
• raids

[rx7here]

thanks for the video but i have a tip: it appears that you read loud from what you have written down. it becomes much easier to understand you if you speak spontaneously in your own words.

[aussie114]

@rx7here Thanks for the tip, I have noticed this myself.

[blacksteel25]

What would be RAID 0+1? Is it two striped drives and two mirrored drives?

[aussie114]

requires 4 drives 2 have striped data on them while the other 2 is back up, its as its write raid 0 and 1.

[mrbit10]

well done, love the animation

[Geekman257]

@s4iko1337 3 or more

[jarrettpeter37]

This is one "nonstop" video. =p

[gallovex]

mate, you sound like you just woke up. eat something ! open your mouth ! i almost fall asleep as you kept talking ... oh, sorry, i have to replay the video. i've fallen asleep ...

[saguarojet]

excellent

[LOTRzagorath]

Brilliant! Thanks! This explained exactly how it works just perfectly!

[b0rks]

Really well done animation!

[CmptrPrgmr]

Sorry for the double post but I have another question, say the forth HDD were to fail and the third one were to fail, wouldn't only the red and yellow HDD be the HDD Copiest that would not work resulting in blue and green still working because there is a backup for them? But if the 1,3 and 4 were to fail then only the green HDD would work because there is a backup of it. Is what I am saying correct?

[CmptrPrgmr]

For RAID 5 where is says BACKUP 1,2,3 or 4. Does have hole block contain the whole contents of that disk in that block. In other words, where it says BACKUP then the number, that backup contains one whole disk? What I don't understand is each data part. Is each data part of one HDD or is it one hole HDD?

[MrRichard991]

@superrrrmann Cool, thanks :)