We recently had the secondary controller fail on the md3220.  We are ordering another one to replace it, however, we've noticed that the speed in file copies for small files are exceptionally slow.  Large files, like 100+MB have no problem getting 80-100MB/sec, but the 100kb files are showing speeds of only 4kb/sec. 

Is this due to the secondary RAID controller being out or is there a way to specifically measure the speed of the file copies?  I was going based on the speeds shown with rsync.

Any help would be appreciated.