harryytm

what success rate? go to HK , or Taobao or US comapny ?
555p 發表於 2020-10-11 18:48

you should always have back no matter the disk is going to fail or not, don't rely on data recovery, it is much more expensive then buying another disk for backup

harryytm

it is only an academic question. im curious
555p 發表於 2020-10-12 00:51

it depends
if it's just a bad PCB, the success rate would be higher with PCB and eeprom swap
if it's a bad head, it would need a head swap in a clean air booth or in a clean room, the success rate is high but it is possible to have data loss
if it's a head crash, the treatment is the same as treating bad head, but since the platter is damaged, the success rate depends on how bad the platter is damaged

but no matter what kind of damage, there is no grantee there is no data loss, and the recovery is really pricy, so a backup is always the best way to avoid all those troubles to begin with.