January 6, 200917 yr I have 53 errors on a 1 tb seagate barracuda drive. Yesterday i only had 13. I haven't noticed anything messed up so are these errors really a problem? Cant the parity drive just rebuild the data drive so it has 0 errors?
January 6, 200917 yr By the time you see the "read" error, it has already been handled. From what I understand, when a read error occurs, the unRAID system re-constructs the block of data it was unable to read from the disk by using parity in combination with all the other drives. It then writes that same block back to the drive it was unable to "read." If the SMART software on the disk needed to re-allocate the sector on the disk, because the original was un-readable, it will do so. Sometimes it can just re-write the sector it was having difficulty reading, sometimes it will use a different sector from it pool of spaare sectors. So, at this time, the problem sectors are probably re-mapped. You should get a SMART report on the misbehaving drive, and watch it over the next weeks/months. If errors continue, you might consider replacing it. Joe L.
Archived
This topic is now archived and is closed to further replies.