I recently had my 20TB parity drive fail a SMART test and went through the warranty process to get a replacement. I installed the replacement, ran pre-clear with no errors and now when I try to assign the drive as parity, I get warnings and errors when I start the array. I checked multiple forum posts and nothing has been able to solve my problem. I am hoping that I am just fried after the work week and missing something obvious - appreciate any help that can be given. After first getting the error:

1. Stopped the array

2. Selected 'no device assigned' for parity 1

3. Started array (no issues aside from the warning that the array was unprotected)

4. Stopped array

5. Assigned 20TB to parity 1

6. Started array (expecting parity-sync)

7. Array devices table shows 0 reads/writes and 513 errors

8. Notification: Unraid Parity disk error - Alert [SCARIF] - Parity disk in error state (disk dsbl)

9. Notification: Warning [SCARIF] - array has errors - Array has 1 disk with read errors

ParitySyncError_250523.txt

Please post the diagnostics.

Apologies - please see attached.

scarif-diagnostics-20250524-2007.zip

Disk isn't giving a valid SMART report, it may be bad, but try swapping cables with a different one and post new diags.

Please see attached - is there anything in particular you are searching for when going through the logs? For example, searching for SMART report - or are you viewing the logs and just seeing if anything stands out?

scarif-diagnostics-20250525-0948.zip

I'm looking at the SMART report for parity, and it's still not valid, suggesting it's a bad disk:

=== START OF INFORMATION SECTION ===

Device Model: ST20000NM007D

Serial Number: ZVTHKMHQ

LU WWN Device Id: 5 000c50 0e9853329

Firmware Version: SN06

User Capacity: 20,000,588,955,648 bytes [20.0 TB]

Sector Size: 512 bytes logical/physical

Rotation Rate: 7200 rpm

Device is: Not in smartctl database 7.3/5706

ATA Version is: ATA8-ACS T13/1699-D revision 4

SATA Version is: SATA 3.0, 6.0 Gb/s

Local Time is: Sun May 25 09:49:20 2025 EDT

SMART support is: Available - device has SMART capability.

SMART support is: Enabled

AAM feature is: Unavailable

APM feature is: Unavailable

Rd look-ahead is: Enabled

Write cache is: Enabled

DSN feature is: Unavailable

ATA Security is: Disabled, NOT FROZEN [SEC1]

Read SCT Status failed: scsi error device not ready

Wt Cache Reorder: Unknown (SCT Feature Control command failed)

Read SMART Data failed: scsi error device not ready

=== START OF READ SMART DATA SECTION ===

SMART Status command failed: scsi error device not ready

SMART overall-health self-assessment test result: UNKNOWN!

SMART Status, Attributes and Thresholds cannot be read.

Read SMART Log Directory failed: scsi error device not ready

ATA_READ_LOG_EXT (addr=0x00:0x00, page=0, n=1) failed: scsi error unsupported field in scsi command

Read GP Log Directory failed

SMART Extended Comprehensive Error Log (GP Log 0x03) not supported

Read SMART Error Log failed: scsi error device not ready

SMART Extended Self-test Log (GP Log 0x07) not supported

Read SMART Self-test Log failed: scsi error device not ready

Selective Self-tests/Logging not supported

Read SCT Status failed: scsi error device not ready

Read SCT Status failed: scsi error device not ready

SCT (Get) Error Recovery Control command failed

Device Statistics (GP/SMART Log 0x04) not supported

Pending Defects log (GP Log 0x0c) not supported

ATA_READ_LOG_EXT (addr=0x11:0x00, page=0, n=1) failed: scsi error unsupported field in scsi command

Read SATA Phy Event Counters failed