What is Current_Pending_Sector (ID 197)?

What is Current_Pending_Sector (ID 197)?

• A. Unreadable sectors waiting for remap
• B. Sectors that cannot be corrected even offline
• C. Reallocated sectors count
• D. Failure threshold

Answer: (A)

Current_Pending_Sector represents unreadable sectors that are waiting to be remapped to spare sectors. When the drive encounters a read error on a sector, it marks it as pending. If a subsequent read of that same sector succeeds, the pending status is cleared. If the sector cannot be read and a write occurs (or the drive forcibly remaps it), it may then be moved to the pool of reallocated sectors. A nonzero value signals that there are sectors that are not reliably readable right now, which is a warning sign to back up data and monitor the drive’s health. This is distinct from sectors already reallocated (which have been fully moved to spare space) and from offline-uncorrectable sectors (which can’t be recovered even with offline attempts). A rising Current_Pending_Sector count often indicates impending failure or deteriorating media.

Current_Pending_Sector represents unreadable sectors that are waiting to be remapped to spare sectors. When the drive encounters a read error on a sector, it marks it as pending. If a subsequent read of that same sector succeeds, the pending status is cleared. If the sector cannot be read and a write occurs (or the drive forcibly remaps it), it may then be moved to the pool of reallocated sectors. A nonzero value signals that there are sectors that are not reliably readable right now, which is a warning sign to back up data and monitor the drive’s health. This is distinct from sectors already reallocated (which have been fully moved to spare space) and from offline-uncorrectable sectors (which can’t be recovered even with offline attempts). A rising Current_Pending_Sector count often indicates impending failure or deteriorating media.