Raid 1,5,6 but not raid 0

[gezza]

Hi to all,
I would like to try =RAID 0= on one of my machines for testing purposes.
However PCLinuxOS will not allow me to create a RAID 0 device!!!
I can create Raid 1,5,6 but not Raid 0. At least, I can create but not format!!! a raid 0.
Any guru the could point me in the right direction Please??
Gezza

[Rudge]

RAID 0 (block-level striping without parity or mirroring) provides improved performance and additional storage but no redundancy or fault tolerance (making it not true RAID, according to the acronym's definition). However, because of the similarities to RAID (especially the need for a controller to distribute data across multiple disks), simple stripe sets are normally referred to as RAID 0. Any disk failure destroys the array, and the likelihood of failure increases with more disks in the array (at a minimum, catastrophic data loss is twice as likely compared to single drives without RAID). A single disk failure destroys the entire array because when data is written to a RAID 0 volume, the data is broken into fragments called blocks. The number of blocks is dictated by the stripe size, which is a configuration parameter of the array. The blocks are written to their respective disks simultaneously on the same sector. This allows smaller sections of the entire chunk of data to be read off the drive in parallel, increasing bandwidth. RAID 0 does not implement error checking, so any error is uncorrectable. More disks in the array means higher bandwidth, but greater risk of data loss.

 

[gezza]

Hi Rudge,
Thank you, yes I understand that but what would I apply to PCC;local drives; to get raid 0 to work??
Apart fron setting rid 0, what else should I set??
Another thing I have found--I created a /boot raid 1 partition over 2 drives and then raid 5 over 3 drives.
The system does not  boot. One gets 'kernel panic' According to the info, this should have booted.

The reason for going raid 1,5,6 is to stop loss of data on drive failure.
Thank you
Gezza