I was using SuperTrak EX8300/8350, but it have some drawbacks like it's slow when 6 hdds are connected (max 20MBps per drive).
Can anybody recommend some PCIe sata controller which
- supports partial raids (raid1 or raid5 or raid6 build on first halfs from drive capacity, while the other patrs are seen as single drives)
- 1TB hdd support (EX8300 fails on such hdds)
- if it have it's own cache, then battery back up is required
- will provide full hdd speed even thought 6 hdds are read/write concurrently.