RAID5 or RAID50 for database?

[mcclnx mcc <mcclnx@xxxxxxxxxxxx>]

we have DELL 6800 server with 12 internal disks in it.  O.S. is CENTOS 4.6 and SCSI control card is PERC 4e/di.

We plan to configure 4 disks (5,8,9,10) as RAID5 or RAID50.  This logical volume will be use as file systems and store database backup files.

Can anyone tell me which one is better on performance?

Thanks.

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