RAID - CompTIA A+ 220-1101 - 3.3

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We rely on our storage devices for access to our most important documents. In this video, you’ll learn how RAID can be used to maintain the uptime and availability of our data when a drive fails.
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FOLLOW PROFESSOR MESSER:

[sthsational]

Still trying to wrap my head around RAID arrays, but your examples helped me understand it better.

[quakerboats]

Extremely important distinction made @0:53. Thank you Professor Messer.

[dawnskinner]

Thank you for your explanation of RAID. You have helped me to finally understand RAID.

[Jason-jktn]

Can you explain why Raid 1 is not considered a backup? You are mirroring a drive to another drive to maintain file access in case one hard drive fails, isn't that what a backup is?

[dlgraves]

This has probably been the hardest thing to grasp, for me personally, out of the entire course.. Taking the exam today though so hopefully I understand it well enough to leg it through any questions involving RAID config. I do pretty well on my practice tests but still seem to get stumped on these 😅

[thedogfather]

Thank you so much for your help Professor Messer! Completing your practice tests now and should pass core 1 exam fairly soon!!

[itsjohnthomas]

Well making progress on this journey. Thank you Professor Messer

[jjvexist]

I'm confused. So, what is the difference between backing up data (making a copy) and mirroring that data? Isn't duplication essentially the same thing as copying it? I understand RAID is a collection of drives mirroring data off each other for redundancy, but that just seems like backing up data across multiple active drives.

[ehizuelenabhulimen]

thank you sir, for your content. I will give back soon

[mikecardenas]

Not sure if I'll get an answer but I'll try asking anyway.. thank you for all the videos though, they are a big help!... Anyway my question is.. Are the Raid disks located and configured on the storage device- independently?.. but on the storage device?.. or are they completely independent of the stoarge device all together? Thanks again in advance for all these videos.

[HalFEateNJesuS]

My question is what happens if more than 1 drive fails at the same time? Does that usually result in total failure? Also is RAID 10 considered to be the best solution or are there pros and cons of each?

[mattsterh]

what is a real life example of RAID being used? I'm assuming on a server or something like that as opposed to a pc.

[Az_bro]

would it be accurate to think of RAID as just a different form of RAM?

[AlyssiaStation]

What so with RAID 0 are we effectively doubling speed? Do both drives have to be the same speed? I guess that's not important for the test...

[gainzovereverything]

So does Raid 1+0 provide speed as well?

[ramseycarolus]

Does the possibility of using parity in raid 0 exist?

[ShadreckMbariro]

i like the way you explain, though am still trying to understand the concerpt