Mass storage disk drive defective media handling

Details Mass storage disk drive defective media handling Mass storage disk drive defective media handling

G - Physics

11

B

354/224, 352/19.

G11B 5/09 (2006.01) G06F 11/00 (2006.01) G06F 12/06 (2006.01) G11B 20/18 (2006.01)

Patent

CA 1229173

ABSTRACT OF THE DISCLOSURE A disk drive of a mass storage subsystem includes areas on a disk surface wherein a vendor-generated defective sector log, a software-generated defective sector log and an alternate sector log are stored. A random access memory (RAM) stores a copy of the defective sector logs. During a seek operation, firmware tests the defective sector log in RAM to generate the alternate sector log for that cylinder number. During the read or write operation, the alternate sector log is checked before processing the sector to determine if it is a defective sector. If the sector is defective, the head is positioned to another cylinder at a head and sector address read from the alternate sector log.

483406

Affiliated with

Also associated with

Rating

Mass storage disk drive defective media handling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mass storage disk drive defective media handling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mass storage disk drive defective media handling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1267594