Hello all Disk 6 and 7 have started to record errors which I though might have been a connection issue as these drives run off a new HBA card that I recently installed. Drive 6 passed the short SAMRT self test, but the extended SMART test resulted in message "completed: read failure". Drive 7 also shows some errors, and is currently undergoing an extended SMART test (10% at time of writing). I have yet to record any data to either drive 6 or 7 (they would be next to be written using high water). Disk 6 and 7 were the last drives to be added to the array after I purchased a HBA card. Disk 6 is over 6 years old, and Disk 7 is over 7 years old, and were both erased then migrated to the UNRAID server from a much older NAS. Has Disk 6 failed, and is Disk 7 not far behind? Sorry for my ignorance, this is all very new to me. I have spent a lot of time trying to understand the SMART test by scrolling forums, but I am still having a hard time working out if I need to buy two new drives. Cheers