tichsia

Thanks for the reply, I have swapped cables again (have used 3 different cables now). This time I swapped it with one of the working array disks and the same thing is happening. I think it's most likely a bad disk 😢

Hi all, I have a new manufacturer re-certified disk (Seagate Exos x16 16TB) and before I go back to the supplier, I just wanted to check if I've got it right and the device is faulty (this will be my 2nd time going back to them, the first time, the drive was DOA). Pre-clear originally failed after 11 hours on the first step. From Googling the error ("scsi error badly formed scsi parameters"), it could have been due to a faulty cable, I have replaced the cable and this time pre-clear ran for a couple of days but failed on the last step: #################################################################################################### # Unraid Server Preclear of disk ZL2EPG9M # # Cycle 1 of 1, partition start on sector 64. # # # # Step 1 of 5 - Pre-read verification: [21:23:30 @ 207 MB/s] SUCCESS # # Step 2 of 5 - Zeroing the disk: [21:25:42 @ 207 MB/s] SUCCESS # # Step 3 of 5 - Writing Unraid's Preclear signature: SUCCESS # # Step 4 of 5 - Verifying Unraid's Preclear signature: SUCCESS # # Step 5 of 5 - Post-Read verification: FAIL # # # # # # # #################################################################################################### # Cycle elapsed time: 44:52:44 | Total elapsed time: 44:52:44 # #################################################################################################### #################################################################################################### # S.M.A.R.T. Status (device type: default) # # # # ATTRIBUTE INITIAL STATUS # # Reallocated_Sector_Ct 0 - # # Power_On_Hours 25 - # # Reported_Uncorrect 33158 - # # Airflow_Temperature_Cel 27 - # # Current_Pending_Sector 0 - # # Offline_Uncorrectable 0 - # # UDMA_CRC_Error_Count 0 - # # # # # #################################################################################################### # # #################################################################################################### I have also tried running the SMART tests from the Unraid GUI but each time I click on the Start button, it turns to Stop then back to Start again within seconds and the test doesn't run. This happens on both the short and extended options and the bottom line of "Last SMART test result" always says "No self-tests logged on this disk". On the disk's attributes tab, I have the following: - Read smart data failed scsi error badly formed scsi parameters I have attached both the logs of the Pre-clear and the report from the "Download SMART report" option from the GUI. Any help would be greatly appreciated. preclear_disk_ZL2EPG9M_26718.txt ST16000NM001G-2KK103_ZL2EPG9M-20241115-1815.txt