Moving from 4 raids to 1ssd 4 raids

Maurice The Odd

Honorable
Dec 19, 2013
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Hello guys, until one week ago my configuration was 4xraid drivers, i have no idea which raid it is 1,5,10 idont know, I dont think it matters very much for me.
I bought a new computer with only one SSD in it, and installed windows 8.1 on it.
The question is if I need to do anything special before connecting the SATA of the RAIDs to the mobo.
Another thing that bother me is: how the hell the system will read the windows 8.1 on the SSD and not the windows 7 that is installed on the raid? does it need any special configuratio as well?

Please use soft English with me :)
 
Solution


There are many types of RAID.
Most rely on disks of the same size.
RAID 5 for instance with the above disks would treat the 480GB drive as a 290GB drive, and give you around 522GB in total.
JBOD allows you to mix disks of different sizes and there is no space allocated to parity, so this is probably what you want if you are just trying to use the drives as one in Windows. This should give you around 954GB.
If your raid controller does not support JBOD. Windows volume spanning...
When you move the old raid drives to the new motherboard you will likely lose the old configuration (and old Windows 7 install).
Configure these drives as RAID 5. This effectively gives you three drives worth of space. RAID 10 would only give you two drives space. RAID 1 is not possible with 4 drives.
 
I mistake, the RAID was only 3 drives before,
2x290G
1x480G

I tried to raid all of them but I get only 590GB of storage disk, what the..? isnt it supposed to be 1TB ?
When I tried RAID only on the 2x290G I got a storage of 290G only, what the hell is wrong?
 


There are many types of RAID.
Most rely on disks of the same size.
RAID 5 for instance with the above disks would treat the 480GB drive as a 290GB drive, and give you around 522GB in total.
JBOD allows you to mix disks of different sizes and there is no space allocated to parity, so this is probably what you want if you are just trying to use the drives as one in Windows. This should give you around 954GB.
If your raid controller does not support JBOD. Windows volume spanning will do the same thing but in software (so more load on the CU and slower performance).
 
Solution