SMART diagnostics -- Transition PHYRDY to PHYNRDY

Dear all,

I just added a new 20TB Toshiba MG10 drive to my NAS. I was burning it in, and it completed a long smart test without issues. Second step is to run badblocks once before adding it to my btrfs file system. While running badblocks I am accumulating huge amounts of Transition from drive PhyRdy to drive PhyNRdy, like 100 per second (88660 after 15m of badblocks). My two other hard drives, 16TB MG08 drives that have been running without issues for about two years, also have high numbers on this stat but still way lower (like an order of magnitude).

Performance seems OK, iotop reports 250-300 MB/s write during badblocks run.

Is this anything to worry about?

Full SMART diagnostics below:

[~]$ sudo smartctl -x /dev/sda
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.12.5-100.fc40.x86_64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Toshiba MG10ACA... Enterprise Capacity HDD
Device Model:     TOSHIBA MG10ACA20TE
Serial Number:    9460A1DWF4MJ
LU WWN Device Id: 5 000039 d88c961e1
Firmware Version: 0104
User Capacity:    20,000,588,955,648 bytes [20.0 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is:  SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Fri Dec 20 20:14:56 2024 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM level is:     128 (minimum power consumption without standby)
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Disabled
ATA Security is:  Disabled, frozen [SEC2]
Wt Cache Reorder: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x80)	Offline data collection activity
					was never started.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(  120) seconds.
Offline data collection
capabilities: 			(0x5b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					No Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	(   2) minutes.
Extended self-test routine
recommended polling time: 	(1683) minutes.
SCT capabilities: 	      (0x003d)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     PO-R--   100   100   050    -    0
  2 Throughput_Performance  P-S---   100   100   050    -    0
  3 Spin_Up_Time            POS--K   100   100   001    -    9368
  4 Start_Stop_Count        -O--CK   100   100   000    -    3
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         PO-R--   100   100   050    -    0
  8 Seek_Time_Performance   P-S---   100   100   050    -    0
  9 Power_On_Hours          -O--CK   100   100   000    -    26
 10 Spin_Retry_Count        PO--CK   100   100   030    -    0
 12 Power_Cycle_Count       -O--CK   100   100   000    -    3
 23 Helium_Condition_Lower  PO---K   100   100   075    -    0
 24 Helium_Condition_Upper  PO---K   100   100   075    -    0
 27 MAMR_Health_Monitor     PO---K   100   100   030    -    787805
191 G-Sense_Error_Rate      -O--CK   100   100   000    -    0
192 Power-Off_Retract_Count -O--CK   100   100   000    -    0
193 Load_Cycle_Count        -O--CK   100   100   000    -    4
194 Temperature_Celsius     -O---K   100   100   000    -    29 (Min/Max 21/39)
196 Reallocated_Event_Count PO--CK   100   100   010    -    0
197 Current_Pending_Sector  -O--CK   100   100   000    -    0
198 Offline_Uncorrectable   ----CK   100   100   000    -    0
199 UDMA_CRC_Error_Count    -O--CK   200   200   000    -    0
220 Disk_Shift              -O----   100   100   000    -    524288
222 Loaded_Hours            -O--CK   100   100   000    -    25
226 Load-in_Time            -OS--K   100   100   000    -    695
240 Head_Flying_Hours       P-----   100   100   001    -    0
241 Total_LBAs_Written      -O--CK   100   100   000    -    975106048
242 Total_LBAs_Read         -O--CK   100   100   000    -    18952
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O     51  Comprehensive SMART error log
0x03       GPL     R/O      5  Ext. Comprehensive SMART error log
0x04       GPL,SL  R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x08       GPL     R/O      2  Power Conditions log
0x09           SL  R/W      1  Selective self-test log
0x0a       GPL     R/W      2  Device Statistics Notification
0x0c       GPL     R/O    513  Pending Defects log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x24       GPL     R/O  65520  Current Device Internal Status Data log
0x25       GPL     R/O  65520  Saved Device Internal Status Data log
0x2f       GPL     R/O      1  Set Sector Configuration
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xab       GPL     VS    1024  Device vendor specific log
0xae       GPL     VS      25  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (5 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%        25         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

SCT Status Version:                  3
SCT Version (vendor specific):       1 (0x0001)
Device State:                        Active (0)
Current Temperature:                    29 Celsius
Power Cycle Min/Max Temperature:     28/29 Celsius
Lifetime    Min/Max Temperature:     21/39 Celsius
Specified Max Operating Temperature:    60 Celsius
Under/Over Temperature Limit Count:   0/0
SMART Status:                        0xc24f (PASSED)
Vendor specific:
00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

SCT Temperature History Version:     2
Temperature Sampling Period:         1 minute
Temperature Logging Interval:        1 minute
Min/Max recommended Temperature:     10/40 Celsius
Min/Max Temperature Limit:            5/60 Celsius
Temperature History Size (Index):    478 (164)

Index    Estimated Time   Temperature Celsius
 165    2024-12-20 12:17    37  ******************
 ...    ..( 64 skipped).    ..  ******************
 230    2024-12-20 13:22    37  ******************
 231    2024-12-20 13:23    38  *******************
 232    2024-12-20 13:24    37  ******************
 ...    ..(  2 skipped).    ..  ******************
 235    2024-12-20 13:27    37  ******************
 236    2024-12-20 13:28    38  *******************
 237    2024-12-20 13:29    37  ******************
 ...    ..(109 skipped).    ..  ******************
 347    2024-12-20 15:19    37  ******************
 348    2024-12-20 15:20    38  *******************
 349    2024-12-20 15:21    37  ******************
 350    2024-12-20 15:22    38  *******************
 351    2024-12-20 15:23    37  ******************
 ...    ..(  2 skipped).    ..  ******************
 354    2024-12-20 15:26    37  ******************
 355    2024-12-20 15:27    38  *******************
 ...    ..(150 skipped).    ..  *******************
  28    2024-12-20 17:58    38  *******************
  29    2024-12-20 17:59    39  ********************
 ...    ..(  6 skipped).    ..  ********************
  36    2024-12-20 18:06    39  ********************
  37    2024-12-20 18:07    38  *******************
  38    2024-12-20 18:08    38  *******************
  39    2024-12-20 18:09    38  *******************
  40    2024-12-20 18:10    37  ******************
 ...    ..( 20 skipped).    ..  ******************
  61    2024-12-20 18:31    37  ******************
  62    2024-12-20 18:32    36  *****************
 ...    ..( 19 skipped).    ..  *****************
  82    2024-12-20 18:52    36  *****************
  83    2024-12-20 18:53    35  ****************
  84    2024-12-20 18:54    35  ****************
  85    2024-12-20 18:55    34  ***************
  86    2024-12-20 18:56    34  ***************
  87    2024-12-20 18:57    33  **************
 ...    ..(  2 skipped).    ..  **************
  90    2024-12-20 19:00    33  **************
  91    2024-12-20 19:01    32  *************
 ...    ..(  2 skipped).    ..  *************
  94    2024-12-20 19:04    32  *************
  95    2024-12-20 19:05    31  ************
 ...    ..(  3 skipped).    ..  ************
  99    2024-12-20 19:09    31  ************
 100    2024-12-20 19:10    30  ***********
 ...    ..(  9 skipped).    ..  ***********
 110    2024-12-20 19:20    30  ***********
 111    2024-12-20 19:21    29  **********
 112    2024-12-20 19:22    29  **********
 113    2024-12-20 19:23    29  **********
 114    2024-12-20 19:24    30  ***********
 ...    ..(  6 skipped).    ..  ***********
 121    2024-12-20 19:31    30  ***********
 122    2024-12-20 19:32    31  ************
 123    2024-12-20 19:33    31  ************
 124    2024-12-20 19:34    32  *************
 125    2024-12-20 19:35    32  *************
 126    2024-12-20 19:36    32  *************
 127    2024-12-20 19:37    33  **************
 128    2024-12-20 19:38    33  **************
 129    2024-12-20 19:39    33  **************
 130    2024-12-20 19:40    34  ***************
 ...    ..(  3 skipped).    ..  ***************
 134    2024-12-20 19:44    34  ***************
 135    2024-12-20 19:45    35  ****************
 ...    ..(  5 skipped).    ..  ****************
 141    2024-12-20 19:51    35  ****************
 142    2024-12-20 19:52    36  *****************
 ...    ..(  6 skipped).    ..  *****************
 149    2024-12-20 19:59    36  *****************
 150    2024-12-20 20:00     ?  -
 151    2024-12-20 20:01    36  *****************
 ...    ..(  3 skipped).    ..  *****************
 155    2024-12-20 20:05    36  *****************
 156    2024-12-20 20:06     ?  -
 157    2024-12-20 20:07    28  *********
 ...    ..(  4 skipped).    ..  *********
 162    2024-12-20 20:12    28  *********
 163    2024-12-20 20:13    29  **********
 164    2024-12-20 20:14    29  **********

SCT Error Recovery Control:
           Read: Disabled
          Write: Disabled

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 3) ==
0x01  0x008  4               3  ---  Lifetime Power-On Resets
0x01  0x010  4              26  ---  Power-on Hours
0x01  0x018  6       975125504  ---  Logical Sectors Written
0x01  0x020  6          952271  ---  Number of Write Commands
0x01  0x028  6           18952  ---  Logical Sectors Read
0x01  0x030  6             435  ---  Number of Read Commands
0x01  0x038  6        93600000  ---  Date and Time TimeStamp
0x01  0x040  4               0  ---  Pending Error Count
0x02  =====  =               =  ===  == Free-Fall Statistics (rev 1) ==
0x02  0x010  4               0  ---  Overlimit Shock Events
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4              26  ---  Spindle Motor Power-on Hours
0x03  0x010  4              25  ---  Head Flying Hours
0x03  0x018  4               4  ---  Head Load Events
0x03  0x020  4               0  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x03  0x038  4               0  ---  Number of Realloc. Candidate Logical Sectors
0x03  0x040  4               0  ---  Number of High Priority Unload Events
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               0  ---  Resets Between Cmd Acceptance and Completion
0x04  0x018  4               0  -D-  Physical Element Status Changed
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              29  ---  Current Temperature
0x05  0x010  1              37  N--  Average Short Term Temperature
0x05  0x018  1               -  N--  Average Long Term Temperature
0x05  0x020  1              39  ---  Highest Temperature
0x05  0x028  1              21  ---  Lowest Temperature
0x05  0x030  1              37  N--  Highest Average Short Term Temperature
0x05  0x038  1              37  N--  Lowest Average Short Term Temperature
0x05  0x040  1               -  N--  Highest Average Long Term Temperature
0x05  0x048  1               -  N--  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              60  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               5  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4               6  ---  Number of Hardware Resets
0x06  0x010  4               3  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
0x07  =====  =               =  ===  == Solid State Device Statistics (rev 1) ==
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c)
No Defects Logged

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x0001  4            0  Command failed due to ICRC error
0x0002  4            0  R_ERR response for data FIS
0x0003  4            0  R_ERR response for device-to-host data FIS
0x0004  4            0  R_ERR response for host-to-device data FIS
0x0005  4            0  R_ERR response for non-data FIS
0x0006  4            0  R_ERR response for device-to-host non-data FIS
0x0007  4            0  R_ERR response for host-to-device non-data FIS
0x0008  4            0  Device-to-host non-data FIS retries
0x0009  4         4204  Transition from drive PhyRdy to drive PhyNRdy
0x000a  4            2  Device-to-host register FISes sent due to a COMRESET
0x000b  4            0  CRC errors within host-to-device FIS
0x000d  4            0  Non-CRC errors within host-to-device FIS
0x000f  4            0  R_ERR response for host-to-device data FIS, CRC
0x0010  4            0  R_ERR response for host-to-device data FIS, non-CRC
0x0012  4            0  R_ERR response for host-to-device non-data FIS, CRC
0x0013  4            0  R_ERR response for host-to-device non-data FIS, non-CRC