Stripe Size:  This field displays the stripe size. A stripe size is the minimal amount of data that can be written to the drive in one write.

Note: RAID level 1 does not have a stripe size parameter. Stripe size parameters are available for RAID level 0 and RAID level 10 array sets only. The stripe size parameter can only be set when the array is created. See the hardware manual for your MegaRAID IDE controller for more information.