User's guide for the Sonnet Fusion D400Q 4-bay Serial ATA enclosure with quad interface storage system. These directions apply to storage systems with drives.
If you move your Fusion storage system from a Mac to a Windows computer system and try to format the disk using the Computer Management Console in Windows, the disk will show up as a GPT Protective Partition with no way to format it.
To properly format the disk, follow these steps:
1) Open a Command window (Start > Run > cmd), then start.
2) List your disks with list disk, then select the appropriate one with select disk X (with X the number of your disk as seen in the listing).
3) Issue a clean all command to erase all information on the disk. At this point you may be able to use the disk again from the management console;if not, continue with a create partition primary.
Another manufacturer's previously-installed SATA driver may be accessing a Sonnet SATA card in error causing a drive access slowdown. For example, we have seen Fusion D400QR5 performance drop from 200MB/s to under 50MB/s in such circumstances. The solution is to remove the other manufacturer's SATA driver.
