HP Smart Array Controllers and basic RAID performance factors

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Figure 2. RAID 5 Random write performance: Comparing 4 KiB random write performance with 512 MiB versus 2 GiB FBWC.
Figure 3. RAID 5 Online Transaction Processing (OLTP) performance (4 KiB aligned, 1/3 random write, 2/3 random read): Comparing 4
KiB OLTP write performance with 512 MiB FBWC versus 2 GiB FBWC.
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RAID 5; 512MiB FBWC
RAID 5; 2GiB FBWC
I/O Per Second (IOPS)
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RAID 5; 512MiB FBWC
RAID 5; 2GiB FBWC
I/O Per Second (IOPS)