IBM 36gig drive

[Robert Johannes]

I've six ibm DRHS36D 36gig drives attached to a sym0 controller (tekram
dc-390) and each time I try to do anything with the drive, I get a message
to the effect of:
"da1: invalid sector size 520"
"da2: invalid sector size 520"
"da3: invalid sector size 520"

This goes on for all six drives.  Can any body give me any clues as to
what's wrong, and how to correct it?  I'm running 4.9 stable.

thanks
robert