Ascending order of defects in read defec

Jeff Williams JWILLIAM at
Tue Dec 10 07:48:00 PST 1996

* From the SCSI Reflector (scsi at, posted by:
* Jeff Williams <JWILLIAM at>


In the Read Defect Data command, there is a statement that, "The defect   
descriptors may or may not be in ascending order".  Does this mean that   
the data can appear in apparently random order?  Or do I have to send it   
in either ascending or descending order?  What is that order based upon?   
 Cylinder, head, sector (and in which order)?

Also, does anyone know of system software that would be confused by out   
of order data being returned?

Jeff Williams

Jeffrey L. Williams                                   Office: (507)   
Western Digital Rochester                                Fax: (507)   
Enterprise Storage Group                      e-mail:   
jwilliam at
* For SCSI Reflector information, send a message with
* 'info scsi' (no quotes) in the message body to majordomo at

More information about the T10 mailing list