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- Switching your RAID array from a RAID 5 to a RAID 10 solution. Each write IO results in two writes using RAID 10 vs. 4 for RAID 5 (100% more efficient with writes).
- As long as the RAID controller has some form of battery backup, then switch its cache mode from Write-through to Write-back, as this setting increases the system's ability to handle write IOs by an order of magnitude.
- Adding more cache memory to the RAID controller.
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