I exactly concur - early IBM SCSI tended to fail. I think IBM SCSI were actually made by Seagate. Seagates have failed more often than any other drives I can remember. The last of the Model 95s were sold with Maxtor SCSI drives.
BTW someone mentioned Quantum Atlas - these are now Maxtor Atlas (just bought one :).
Did you say IBM is giving up its disk business? Why?
Also exact same experience with those great Fujitsu tank drives (beige metal case). One interesting them about them - they seemed to ship with the write cache disabled. Adaptec Ez-SCSI could be used to turn it on, with dramatic effects.