XFS Tuning for Hardware RAID

Stripe Size When you create an hardware RAID array, you must encountered the term stripe size . For example, an 8-disk RAID 1/0 has a stripe width of 4, with a stripe element size of 64 KB has a stripe size of 256 KB (4 * 64 KB). A 5-disk RAID 5 (4+1) with a 64 KB stripe element size also has a stripe width of 256 KB drive (4 * 64 KB) . A stripe is the smallest chunk of data within a RAID array…