As told earlier, I swiched from PCI RAID controller to RocketRaid 2320 PCI-E (x4) RAID controller. Throughput is up significally:
Read speed:
- Before 100 MB/s
- After 520 MB/s (UP 5,2 times)
Write speed (RAID-5)
- Before 54 MB/s
- After 150 MB/s (UP 2,8 times)
Important fact is, that using packets less than 8 MB gave > 1022 MB/s read/write speeds because of new cache employed on the new controller. I's PCI-E x4 physical limit !?
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