Time-Limited Error Recovery (TLER) is a solution designed by Western Digital that allows SATA hard disks to be used with RAID controllers. This feature will prevent a disk from being marked failed by limiting the time spend on correcting detected errors caused by vibriations during high loads. This feature reduces the chance of data loss, which happens when multiple disk fails while the RAID volume is in degraded mode. Western Digitals RAID editions comes with this feature being enabled by default, other disks comes with disabled or not supported. TLER can enabled or disbled using a tool on a DOS bootdisk.
External links
- Western Digital
- Time-Limited Error Recovery (TLER) Information Sheet
- Discussion about enable and disable TLER (proof a tool exists that does this)
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