RAID 5 vs RAID 6

Thanks you really helpful, and the animation it's just perfect thanks

I tougth raid 6 was the same of 5, but more efficient

👏👏👏👏 Thank you

Heard that once the raid 5 tries to rebuild the damaged disk and encounter URE +unrecoverable read error,) then all 3 hdd will be damaged

Why would someone use a RAID 6 VS A 10?

Finally all this ways its dangerous so i backup my data manually

Finally all this ways its dangerous so i backup my data manually

Thanks for the video!

LOVE THIS!

Super

It took me YEARS to find a good explanation to understand RAID 5 AND 6. THANK YOU SO MUCH FOR THIS!

I absolutely LOVE your powerpoint animation skills

But can i ask how the parity work to restore full capacity of 1 harddrive out of 3 if we dont know which one gonna be broke

So with RAID 6, let’s say I have data divided between drives A & B, and parity on drives C & D… I get that I am recover if I lose both parity OR one parity and one data. But what happens if I lose both data… and just have two copies of parity. How can I rebuild? Or are the parities different… not both XORs of A and B?

You explained it incredibly well, I finally understand it fully and can memorize it well thanks to your video!

Since tape backups are starting to make a resurgence, would it be a good idea to do a raid zero on your main desk and then mirror to a tape back up, or would you want to use five or six on the main discs?

I used to work in I.T.. 20 years ago. Does RAID 4 still exist? It was same as RAID 5 but with the parity all on one disk, not striped across disks. So if you lost the parity disk, the other disks still had their complete data striped across the other disks. If you lost one of the data disks, then the parity would rebuild the lost data on a new blank drive.

Thank you so much. This has seemed like rocket science until now

The one thing that is missing from the video is expansion!!! If I have 8 drives how much is allocated to parity??? Great job otherwise!! Now I have to go find the answer......

By far the best explanation I have seen. Thanks!!!

Sir plc make a one video on thin provisioning and thick provisioning

Great Explanation! Thanks!

Great videos!

does raid 5 require same size? i have 2 x 300gb and 4 x 900gb is this ok for raid 5 configuration, for this configuration what would be the total size ? thanks

RAID10 and RAID6 requires 4 hdds and RAID10 is more advantage than RAID6. Is there any reason to use RAID6 in case having 4 hdds? Thanks

I'm understanding the basics of the concept of RAID 5, but how the parity works doesn't seem to be covered in any of these videos.

Great explanation! Thank you

I am a visual learner and the animation really helps. Understood it in an instant, only that it took me 4 different videos for me to finally your video :(

Great explanation! Thank you

What a good content, very good indeed, subscribed!

Then whats the difference between RAID 6 and RAID 10

So to compare to RAID4: RAID5 is similar to RAID4 but RAID4 had dedicated disk for parity and data was on N-1 disks so the parity disk was a bottleneck because every write to any data disk involved corresponding write to parity disk.

professional really i love it Thank you so much!

Raid 6 sounds great if you got more money than problems.

A few questions

You said systems like Raid 5 can store a large amount of data.But how is raid 5 different than any other storage capacity? If you have a 1gb file, weather it's on 1 drive or spread amongst 3,isn't it the same size ?

2.) If there is disk parity and a drive fails, how does the other drives know to rebuild information they never had ? Am I understanding that correctly? So if a file is striped among 3 drives and drive 3 fails,how do 1 and 2 rebuild the file that was on 3 if they never had it?

Genial.. Awersome!! Thanks for a great explain.. you help me to understanding more cleary! Thanks again..

Your Videos are awesome, ur made for this

WOW!!! great learning enforcement resources!! I learned about RAID in 5 mins instead of reading 30 pages. The visuals definitely help. This awesome!!!

❤️❤️❤️

Thank you again ! I learned new stuff again ^^

Im having a question like this "A customer has requested a four-drive NAS device. The system needs to be capable of full system reconstruction in the event of two failed drives. Which of the following should be configured to meet this requirement?"

Options are RAID: 0, 1, 5, 10 and according to the answer is RAID 5. I was thinking RAID 10. RAID 6 is not even an option

If speed is not a concern should you choose RAID 1 over RAID 6?

How often should you pre-emptively change out older drives to avoid failures?

You're missing one VERY important difference between RAID5 and RAID6:
If a disk fails in RAID5, you can only read from the remaing disks, until the broken disk is replaced - you cannot write to the disk, greatly reducing the usability of the remaining disks, untal a replacement disk is insteted and rebuild.
In RAID6 you can still write to the remaining disks, if a disk fails, meaning, you can still use the system while waiting for a new disk to be obtained, insterted and rebuild.

Very good info... bunch of thanks...

Raid 1 vs Raid 6 ??? Usually the same…

So for a raid 6 configuration you would say its better for those running massive amounts of space say a few hundred tb? Can you mix and match hdd sizee with raid6 say running 75tb drives and a 8th 10tb one in case of a dual failure? How would you setup something like this? Thank you in advance.

This is the BEST video ever on RAID 5 and 6. Perfectly explained. Finally, I understand.