I setting up and testing my new server I am getting to experience a RAID rebuild quite often...

I want to check whether the rebuild times I am seeing fit with other people's experience. I have two 250GB SATA drives, running with three RAID1 arrays (50MB /boot, 1GB swap and all the rest for /).

The /boot and swap arrays resync very quickly. The main 213GB array takes over 5 hours to resync, trundling along at about 12,000K/sec most of the time.

Is this the best that I can expect ?