RAID array in another raid array?

[devhdc]

Curious if anyone's even attempted to put one raid array into another?

A situations occured where I'vm in need of putting series of 4 disks into raid 0' array's and then putting 5 of those raid 0 arrays into a raid 5 or raid 6 array for backup purposes.. But is it even possible?

[Jay123]

I was thinking about putting a RAID 0 in a RAID 1 just yesterday, no idea if it's possible though

[mybeat]

After putting 4 disk in raid0 you'll get 1 array and I kinda didn't understood the whole idea. 

But in general, no it's not.

 

Kinda reminded me of "Yo dawg I heard you like..." meme.

[FloGer]

Hi, I do not have huge knowledge on the subject, but I will try to answer with my knowledge:

 

You cannot do exactly what you mentionned, but have a look at RAID-10. It is essentially RAID 1 & RAID 0 combined. It is not as efficient as RAID 5 or 6 in terms of redundancy, but you do have the performance increase.

Keep in mind that with RAID arrays, especially 5 & 6, performance heavily depends on the controller you have (on-board, 3rd party...)

 

Apart from that - depending on what OS you are running - have a look at ZFS. It is a file system that allows similar configurations as RAID, but where you can combine them "as you want" - or nearly...

 

Hope that I've been helpful!

 

PS: please correct me if I'm wrong.

[Blackterror25]

Curious if anyone's even attempted to put one raid array into another?

A situations occured where I'vm in need of putting series of 4 disks into raid 0' array's and then putting 5 of those raid 0 arrays into a raid 5 or raid 6 array for backup purposes.. But is it even possible?

 

I was thinking about putting a RAID 0 in a RAID 1 just yesterday, no idea if it's possible though

 

 

yes both are possible, they are called raid 50 and raid 10, but your raid card has to supported.

Most support raid 10 but to get a raid card that supports raid 50 will cost you a lot of money. plus you'll need a ton of hdd's for it.

 

You're better off with just a raid 5 or raid 6 because it gives you good speed and allowes for 1 drive (raid 5) or 2 drives (raid 6) to fail before you lose data.

 

[Kajornkeat]

If you put RAID 0 in a RAID 1, it's called RAID 01 or RAID 0+1.

 

If you put RAID 1 in a RAID 0, it's called RAID 10 or RAID 1+0.

 

If you put RAID 10 in a RAID 0, it's called RAID 1+0+0 or RAID 100 or RAID 10+0.

 

If you put RAID 5 in a  RAID 0, it's called RAID 50 or RAID 5+0.

 

If you put RAID 5 in a RAID 1, it's called RAID 51 or RAID 5+1.

 

If you put RAID 0 in a  RAID 5, it's called RAID 05 or RAID 0+5.

 

If you put RAID 6 in a RAID 0, it's called RAID 60 or RAID 6+0.

 

If you put RAID 6 in a RAID 1, it's called RAID 61 or RAID 6+1.

 

If you want to do these RAID configurations, you will need a really good RAID Cards  :D

[jollander]

Raidception

 

 

 

(it had to be said)

[devhdc]

I' like to thank everyone for their feedback, I'm currently formatting 2 sets of array's for testing, Raid 10 and Raid 50. And before anyone asks, yes, I do utilize raidcards in the extreme, not the cheap one's either, so the hardware support is there.

Now i just have to experiment some with the different arrays, but, handling 3,8TB of data read/write each day at this point means the testing and evaluation will be done rather quick.