Error recovery control

Time - Limited Error Recovery TLER short, German time-limited error correction, referred to that of a hard disk available time to perform error correction. The term TLER is used for Western Digital hard drives. Similar competing technologies, which perform the same function to Error Recovery Control ( ERC) call at Seagate or the Command Completion Time Limit ( CCTL ) at Samsung and Hitachi.

Diving at Schreib-/Lesevorgängen a bad sector on a hard drive so tried to solve the problem yourself and to skip the defective sector. This process can sometimes take many seconds or minutes. Is the drive summarized along with other hard disks to a RAID array, it is mostly removed by the RAID controller after eight seconds from the array and marked as defective when they could not fix the error up to this point. As a result, higher material costs and a less safe array. At this point TLER intervenes: gets the hard disk the error within seven seconds not even in the handle (hence " limited time "), then " asks" them to the RAID controller to assist in troubleshooting. The early to eject the disk from the array can be averted.

Therefore, the default values ​​for the time- limited error correction in desktop hard drives and hard drives for server use in delivery status differ. Western Digital has a software called WDTLER.EXE to configure this value offered until recently as a download. This is not to be found in the download section of the official website. However, the tool is still available on various other websites and forums for download.