IBM 5170 - Failures of the CMI 6426 Hard Drive

The first hard drive supplied by IBM in the IBM 5170 was CMI's model 6426-S (sometimes referred to as the CM-6426 or CM6426).
The very high failure rate of those drives led to IBM moving to the Seagate ST-4026.

Below are some magazine articles relating to the failures.


Date:	January 1985
Magazine:	Computerworld Magazine, Jan 1985
Article:	Microsoft: PC-DOS release will solve start-up bugs in AT drive
Comment:	DOS 3.1 released. Better copes with bad sectors at start of drive.

Date:	March 1985
Magazine:	InfoWorld Magazine, Mar 1985
Article:	PC AT Problems Cause Concern for Owners
Comment:

Date:	July 1985
Magazine:	InfoWorld Magazine, Jul 1985
Article:	Reliability is Hard Disk Key
Comment:	The 6426 is one of the drives compared and negatively commented on.