System 7: Does Not Support Non-SCSI Hard Drives

I am using an old HD20 (pre-SCSI disk from a Macintosh 512K) with a Macintosh Classic running System 7. The disk gets corrupted. Is it impossible to use HD20 with System 7?

System 7 requires a SCSI hard drive. The Non-SCSI HD20 is therefore not supported by System 7.
Published Date: Feb 18, 2012