Inactive HDD spinning up, can't figure why

Hi,
So I’ve got 2 shucked 12TB WD hard drives, that are put into RAID 1. I used have them connected into my NAS through virtualbox VM on os15.3, through usb case. (when I’ve used it like this, it worked perfectly - disks were spinning only when I accessed them through samba or did some file operations or checkarray triggered )
Now I decided to move them into normal sata connection.
At the beginning, after formatting I couldn’t spin them down at all, but I figured it’s ext4lazyinit doing it’s thing, so I mounted with “init_itable=0” and that speeded things up.
Now HDD’s are spinning up after around 10-15 mins. I haven’t even put any files yet into it. Have you got any idea, how to set it up, so they won’t spin up when unused ? Or to find out what’s spinning them up ?

**localhost:/mnt/WD #** fatrace -c -t 

(shows nothing)

**localhost:/etc #** cat /etc/fstab 
UUID=b7ac28cb-bc89-4e43-9e17-bc7485a576a1  /                       btrfs  defaults                      0  0 
UUID=b7ac28cb-bc89-4e43-9e17-bc7485a576a1  /boot/grub2/x86_64-efi  btrfs  subvol=/@/boot/grub2/x86_64-efi  0  0 
UUID=b7ac28cb-bc89-4e43-9e17-bc7485a576a1  /boot/grub2/i386-pc     btrfs  subvol=/@/boot/grub2/i386-pc  0  0 
UUID=b7ac28cb-bc89-4e43-9e17-bc7485a576a1  /.snapshots             btrfs  subvol=/@/.snapshots          0  0 
UUID=b7ac28cb-bc89-4e43-9e17-bc7485a576a1  /var                    btrfs  subvol=/@/var                 0  0 
UUID=b7ac28cb-bc89-4e43-9e17-bc7485a576a1  /usr/local              btrfs  subvol=/@/usr/local           0  0 
UUID=b7ac28cb-bc89-4e43-9e17-bc7485a576a1  /tmp                    btrfs  subvol=/@/tmp                 0  0 
UUID=b7ac28cb-bc89-4e43-9e17-bc7485a576a1  /root                   btrfs  subvol=/@/root                0  0 
UUID=b7ac28cb-bc89-4e43-9e17-bc7485a576a1  /opt                    btrfs  subvol=/@/opt                 0  0 
UUID=94e306fb-0534-472e-b10f-86c7ce8b305d  /home                   ext4   data=ordered                  0  2 
/dev/md0 /mnt/WD/ ext4 defaults,noatime,nofail,x-systemd.device-timeout=17s 0 2

mount
(...)
/dev/md0 on /mnt/WD type ext4 (rw,noatime)

**localhost:/etc #** cat /proc/mdstat 
Personalities : [raid1]  
md0 : active raid1 sdb1[1] sda1[0] 
      11718752192 blocks super 1.2 [2/2] [UU] 
      bitmap: 0/88 pages [0KB], 65536KB chunk 

unused devices: <none> 

**localhost:/etc #** mdadm --detail /dev/md0   
/dev/md0: 
           Version : 1.2 
     Creation Time : Tue Nov 29 14:41:33 2022 
        Raid Level : raid1 
        Array Size : 11718752192 (10.91 TiB 12.00 TB) 
     Used Dev Size : 11718752192 (10.91 TiB 12.00 TB) 
      Raid Devices : 2 
     Total Devices : 2 
       Persistence : Superblock is persistent 

     Intent Bitmap : Internal 

       Update Time : Sat Dec  3 09:15:21 2022 
             State : clean  
    Active Devices : 2 
   Working Devices : 2 
    Failed Devices : 0 
     Spare Devices : 0 

Consistency Policy : bitmap 

              Name : localhost:0  (local to host localhost) 
              UUID : 15cfcb2c:8b922cde:c6b12025:50be3cf0 
            Events : 15822 

    Number   Major   Minor   RaidDevice State 
       0       8        1        0      active sync   /dev/sda1 
       1       8       17        1      active sync   /dev/sdb1


hdparm -I /dev/sda                        

/dev/sda: 

ATA device, with non-removable media 
        Model Number:       WDC WD120EMFZ-11A6JA0                    
        Serial Number:      Z2KA1KMT             
        Firmware Revision:  81.00A81 
        Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0; Revision: ATA8-AST T13 Project D1697 Revision 0b 
Standards: 
        Used: unknown (minor revision code 0x0029)  
        Supported: 9 8 7 6 5  
        Likely used: 9 
Configuration: 
        Logical         max     current 
        cylinders       16383   16383 
        heads           16      16 
        sectors/track   63      63 
        -- 
        CHS current addressable sectors:    16514064 
        LBA    user addressable sectors:   268435455 
        LBA48  user addressable sectors:  2929721344 
        Logical  Sector size:                  4096 bytes  Supported: 4096 4160 4224 512 520 528 ] 
        Physical Sector size:                  4096 bytes 
        device size with M = 1024*1024:    11444224 MBytes 
        device size with M = 1000*1000:    12000138 MBytes (12000 GB) 
        cache/buffer size  = unknown 
        Form Factor: 3.5 inch 
        Nominal Media Rotation Rate: 5400 
Capabilities: 
        LBA, IORDY(can be disabled) 
        Queue depth: 32 
        Standby timer values: spec'd by Standard, no device specific minimum 
        R/W multiple sector transfer: Max = 2   Current = 2 
        Advanced power management level: 127 
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6  
             Cycle time: min=120ns recommended=120ns 
        PIO: pio0 pio1 pio2 pio3 pio4  
             Cycle time: no flow control=120ns  IORDY flow control=120ns 
Commands/features: 
        Enabled Supported: 
           *    SMART feature set 
                Security Mode feature set 
           *    Power Management feature set 
           *    Write cache 
           *    Look-ahead 
           *    Host Protected Area feature set 
           *    WRITE_BUFFER command 
           *    READ_BUFFER command 
           *    NOP cmd 
           *    DOWNLOAD_MICROCODE 
           *    Advanced Power Management feature set 
                Power-Up In Standby feature set 
           *    SET_FEATURES required to spinup after power up 
                SET_MAX security extension 
           *    48-bit Address feature set 
           *    Device Configuration Overlay feature set 
           *    Mandatory FLUSH_CACHE 
           *    FLUSH_CACHE_EXT 
           *    SMART error logging 
           *    SMART self-test 
           *    Media Card Pass-Through 
           *    General Purpose Logging feature set 
           *    WRITE_{DMA|MULTIPLE}_FUA_EXT 
           *    64-bit World wide name 
           *    URG for READ_STREAM[_DMA]_EXT 
           *    URG for WRITE_STREAM[_DMA]_EXT 
           *    WRITE_UNCORRECTABLE_EXT command 
           *    {READ,WRITE}_DMA_EXT_GPL commands 
           *    Segmented DOWNLOAD_MICROCODE 
           *    unknown 119[6] 
                unknown 119[7] 
           *    Gen1 signaling speed (1.5Gb/s) 
           *    Gen2 signaling speed (3.0Gb/s) 
           *    Gen3 signaling speed (6.0Gb/s) 
           *    Native Command Queueing (NCQ) 
           *    Host-initiated interface power management 
           *    Phy event counters 
           *    NCQ priority information 
           *    READ_LOG_DMA_EXT equivalent to READ_LOG_EXT 
                Non-Zero buffer offsets in DMA Setup FIS 
           *    DMA Setup Auto-Activate optimization 
                Device-initiated interface power management 
                In-order data delivery 
           *    Software settings preservation 
                unknown 78[7] 
           *    unknown 78[10] 
                unknown 78[11] 
                unknown 78[12] 
           *    SMART Command Transport (SCT) feature set 
           *    SCT Write Same (AC2) 
           *    SCT Error Recovery Control (AC3) 
           *    SCT Features Control (AC4) 
           *    SCT Data Tables (AC5) 
           *    SANITIZE feature set 
           *    OVERWRITE_EXT command 
           *    Extended number of user addressable sectors  
           *    DOWNLOAD MICROCODE DMA command 
           *    WRITE BUFFER DMA command 
           *    READ BUFFER DMA command 
Security:  
        Master password revision code = 65534 
                supported 
        not     enabled 
        not     locked 
                frozen 
        not     expired: security count 
        not     supported: enhanced erase 
        1218min for SECURITY ERASE UNIT. 
Logical Unit WWN Device Identifier: 5000cca28deed81c 
        NAA             : 5 
        IEEE OUI        : 000cca 
        Unique ID       : 28deed81c 
Checksum: correct


**localhost:/etc #** hdparm -I /dev/sdb 

/dev/sdb: 

ATA device, with non-removable media 
        Model Number:       WDC WD120EMFZ-11A6JA0                    
        Serial Number:      9RKD4SKC             
        Firmware Revision:  81.00A81 
        Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0; Revision: ATA8-AST T13 Project D1697 Revision 0b 
Standards: 
        Used: unknown (minor revision code 0x0029)  
        Supported: 9 8 7 6 5  
        Likely used: 9 
Configuration: 
        Logical         max     current 
        cylinders       16383   16383 
        heads           16      16 
        sectors/track   63      63 
        -- 
        CHS current addressable sectors:    16514064 
        LBA    user addressable sectors:   268435455 
        LBA48  user addressable sectors:  2929721344 
        Logical  Sector size:                  4096 bytes  Supported: 4096 4160 4224 512 520 528 ] 
        Physical Sector size:                  4096 bytes 
        device size with M = 1024*1024:    11444224 MBytes 
        device size with M = 1000*1000:    12000138 MBytes (12000 GB) 
        cache/buffer size  = unknown 
        Form Factor: 3.5 inch 
        Nominal Media Rotation Rate: 5400 
Capabilities: 
        LBA, IORDY(can be disabled) 
        Queue depth: 32 
        Standby timer values: spec'd by Standard, no device specific minimum 
        R/W multiple sector transfer: Max = 2   Current = 2 
        Advanced power management level: 127 
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6  
             Cycle time: min=120ns recommended=120ns 
        PIO: pio0 pio1 pio2 pio3 pio4  
             Cycle time: no flow control=120ns  IORDY flow control=120ns 
Commands/features: 
        Enabled Supported: 
           *    SMART feature set 
                Security Mode feature set 
           *    Power Management feature set 
           *    Write cache 
           *    Look-ahead 
           *    Host Protected Area feature set 
           *    WRITE_BUFFER command 
           *    READ_BUFFER command 
           *    NOP cmd 
           *    DOWNLOAD_MICROCODE 
           *    Advanced Power Management feature set 
                Power-Up In Standby feature set 
           *    SET_FEATURES required to spinup after power up 
                SET_MAX security extension 
           *    48-bit Address feature set 
           *    Device Configuration Overlay feature set 
           *    Mandatory FLUSH_CACHE 
           *    FLUSH_CACHE_EXT 
           *    SMART error logging 
           *    SMART self-test 
           *    Media Card Pass-Through 
           *    General Purpose Logging feature set 
           *    WRITE_{DMA|MULTIPLE}_FUA_EXT 
           *    64-bit World wide name 
           *    URG for READ_STREAM[_DMA]_EXT 
           *    URG for WRITE_STREAM[_DMA]_EXT 
           *    WRITE_UNCORRECTABLE_EXT command 
           *    {READ,WRITE}_DMA_EXT_GPL commands 
           *    Segmented DOWNLOAD_MICROCODE 
           *    unknown 119[6] 
                unknown 119[7] 
           *    Gen1 signaling speed (1.5Gb/s) 
           *    Gen2 signaling speed (3.0Gb/s) 
           *    Gen3 signaling speed (6.0Gb/s) 
           *    Native Command Queueing (NCQ) 
           *    Host-initiated interface power management 
           *    Phy event counters 
           *    NCQ priority information 
           *    READ_LOG_DMA_EXT equivalent to READ_LOG_EXT 
                Non-Zero buffer offsets in DMA Setup FIS 
           *    DMA Setup Auto-Activate optimization 
                Device-initiated interface power management 
                In-order data delivery 
           *    Software settings preservation 
                unknown 78[7] 
                unknown 78[10] 
                unknown 78[11] 
           *    SMART Command Transport (SCT) feature set 
           *    SCT Write Same (AC2) 
           *    SCT Error Recovery Control (AC3) 
           *    SCT Features Control (AC4) 
           *    SCT Data Tables (AC5) 
           *    SANITIZE feature set 
           *    OVERWRITE_EXT command 
           *    Extended number of user addressable sectors  
           *    DOWNLOAD MICROCODE DMA command 
           *    WRITE BUFFER DMA command 
           *    READ BUFFER DMA command 
Security:  
        Master password revision code = 65534 
                supported 
        not     enabled 
        not     locked 
                frozen 
        not     expired: security count 
        not     supported: enhanced erase 
        1062min for SECURITY ERASE UNIT. 
Logical Unit WWN Device Identifier: 5000cca264efccd5 
        NAA             : 5 
        IEEE OUI        : 000cca 
        Unique ID       : 264efccd5 
Checksum: correct


@Filarsky:

Actually, especially for Western Digital (WD) HDDs, you should be looking at the S.M.A.R.T. counter “Load_Cycle_Count” –

  • This is an indication of how often the drive retracted the heads to save power – the drive does this autonomously by means of the drive’s micro-code.

Another aspect is the “Laptop mode” – Laptops tend to spin down HDDs when on battery only but, not when the battery is being charged …

[HR][/HR]FYI: I have a 4 TB WD Blue drive here which is currently indicating a Load_Cycle_Count value of 635290 after only a few years of use.An older 1 TB WD Blue drive, is indicating a Load_Cycle_Count value of 2638 – which indicates that, the firmware in the newer drives retract the heads more often than the older drives.

[HR][/HR]Which may well be an indication that, the drive manufacturers are attempting to reduce the HDD power consumption by retracting the heads more often.

I don’t use these arcane options. I go with defaults only:

**erlangen:~ #** cat /etc/fstab  
UUID=19CF-0B54                             /boot/efi               vfat   defaults                      0  0 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /                       btrfs  defaults                      0  0 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /.snapshots             btrfs  subvol=/@/.snapshots          0  0 
# subvolumes exempted from snapshotting 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /var                    btrfs  subvol=/@/var                 0  0 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /usr/local              btrfs  subvol=/@/usr/local           0  0 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /srv                    btrfs  subvol=/@/srv                 0  0 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /root                   btrfs  subvol=/@/root                0  0 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /opt                    btrfs  subvol=/@/opt                 0  0 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /home                   btrfs  subvol=/@/home                0  0 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /boot/grub2/x86_64-efi  btrfs  subvol=/@/boot/grub2/x86_64-efi  0  0 
UUID=0e58bbe5-eff7-4884-bb5d-a0aac3d8a344  /boot/grub2/i386-pc     btrfs  subvol=/@/boot/grub2/i386-pc  0  0 
#----------------------------------------------------------------------------------------------------------- 
**UUID=0e9f8bb1-2e36-4a6e-aab8-50a12a269d37  /home-SSD               btrfs  defaults                      0  0 
UUID=2260f160-cc05-47cc-9893-cc32c050177d  /HDD                    btrfs  user,noauto                   0  0 
UUID=6914-84F3                             /GARMIN                 vfat   user,noauto                   0  0 
UUID=0267-906F                             /GARMIN-KART            vfat   user,noauto                   0  0 
LABEL=FR735                                /FR735                  vfat   user,noauto                   0  0 
UUID=2f0030b8-7257-4cba-be3e-b33154cda052  /WD25                   ext4   user,noauto                   0  0 **
**erlangen:~ #**

None of the above drives spins up inadvertently. You may want to post what is going on by running the following command:

**erlangen:~ #** **journalctl -b0 _KERNEL_SUBSYSTEM=scsi** 
Dec 03 10:40:58 erlangen kernel: scsi host0: ahci 
Dec 03 10:40:58 erlangen kernel: scsi host1: ahci 
Dec 03 10:40:58 erlangen kernel: scsi host2: ahci 
Dec 03 10:40:58 erlangen kernel: scsi host3: ahci 
Dec 03 10:40:58 erlangen kernel: scsi host4: ahci 
Dec 03 10:40:58 erlangen kernel: scsi host5: ahci 
Dec 03 10:40:58 erlangen kernel: **scsi 0:0:0:0: Direct-Access     ATA      CT2000BX500SSD1  030  PQ: 0 ANSI: 5**
Dec 03 10:40:58 erlangen kernel: **sd 0:0:0:0: [sda] 3907029168 512-byte logical blocks: (2.00 TB/1.82 TiB)**
Dec 03 10:40:58 erlangen kernel: **sd 0:0:0:0: [sda] Write Protect is off**
Dec 03 10:40:58 erlangen kernel: sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
Dec 03 10:40:58 erlangen kernel: **sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA**
Dec 03 10:40:58 erlangen kernel: **sd 0:0:0:0: [sda] Attached SCSI disk**
Dec 03 10:40:58 erlangen kernel: **scsi 1:0:0:0: Direct-Access     ATA      ST8000VN004-2M21 SC60 PQ: 0 ANSI: 5**
Dec 03 10:40:58 erlangen kernel: **sd 1:0:0:0: [sdb] 15628053168 512-byte logical blocks: (8.00 TB/7.28 TiB)**
Dec 03 10:40:58 erlangen kernel: **sd 1:0:0:0: [sdb] 4096-byte physical blocks**
Dec 03 10:40:58 erlangen kernel: **sd 1:0:0:0: [sdb] Write Protect is off**
Dec 03 10:40:58 erlangen kernel: sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
Dec 03 10:40:58 erlangen kernel: **sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA**
Dec 03 10:40:58 erlangen kernel: **sd 1:0:0:0: [sdb] Attached SCSI disk**
Dec 03 10:40:58 erlangen kernel: **scsi 4:0:0:0: CD-ROM            PIONEER  DVD-RW  DVR-221  1.00 PQ: 0 ANSI: 5**
Dec 03 10:40:58 erlangen kernel: **sd 0:0:0:0: Attached scsi generic sg0 type 0**
Dec 03 10:40:58 erlangen kernel: **sd 1:0:0:0: Attached scsi generic sg1 type 0**
Dec 03 10:40:58 erlangen kernel: **scsi 4:0:0:0: Attached scsi generic sg2 type 5**
Dec 03 10:40:58 erlangen kernel: sr 4:0:0:0: [sr0] scsi3-mmc drive: 40x/40x writer dvd-ram cd/rw xa/form2 cdda tray 
Dec 03 10:40:58 erlangen kernel: sr 4:0:0:0: Attached scsi CD-ROM sr0
Dec 03 10:41:01 erlangen kernel: **sd 1:0:0:0: [sdb] Synchronizing SCSI cache**
Dec 03 10:41:01 erlangen kernel: **sd 1:0:0:0: [sdb] Stopping disk**
Dec 03 12:19:21 erlangen kernel: scsi host6: usb-storage 2-4:1.0 
Dec 03 12:19:22 erlangen kernel: **scsi 6:0:0:0: Direct-Access     Intenso  Ultra Line       1100 PQ: 0 ANSI: 6**
Dec 03 12:19:22 erlangen kernel: **sd 6:0:0:0: Attached scsi generic sg1 type 0**
Dec 03 12:19:22 erlangen kernel: **sd 6:0:0:0: [sdb] 62545920 512-byte logical blocks: (32.0 GB/29.8 GiB)**
Dec 03 12:19:22 erlangen kernel: **sd 6:0:0:0: [sdb] Write Protect is off**
Dec 03 12:19:22 erlangen kernel: sd 6:0:0:0: [sdb] Mode Sense: 43 00 00 00
Dec 03 12:19:22 erlangen kernel: **sd 6:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA**
Dec 03 12:19:22 erlangen kernel: **sd 6:0:0:0: [sdb] Attached SCSI removable disk**
Dec 03 12:23:45 erlangen kernel: scsi host6: usb-storage 2-4:1.0 
Dec 03 12:23:46 erlangen kernel: **scsi 6:0:0:0: Direct-Access     Intenso  Ultra Line       1100 PQ: 0 ANSI: 6**
Dec 03 12:23:46 erlangen kernel: **sd 6:0:0:0: Attached scsi generic sg1 type 0**
Dec 03 12:23:46 erlangen kernel: **sd 6:0:0:0: [sdb] 62545920 512-byte logical blocks: (32.0 GB/29.8 GiB)**
Dec 03 12:23:46 erlangen kernel: **sd 6:0:0:0: [sdb] Write Protect is off**
Dec 03 12:23:46 erlangen kernel: sd 6:0:0:0: [sdb] Mode Sense: 43 00 00 00
Dec 03 12:23:46 erlangen kernel: **sd 6:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA**
Dec 03 12:23:46 erlangen kernel: **sd 6:0:0:0: [sdb] Attached SCSI removable disk**
Dec 03 12:24:14 erlangen kernel: **sd 6:0:0:0: [sdb] Synchronizing SCSI cache**
Dec 03 12:24:14 erlangen kernel: sd 6:0:0:0: [sdb] Synchronize Cache(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK 
**erlangen:~ #**


Thanks for your help @karlmistelberger
I used command

**journalctl -b0**

to find out that smartd is doing self test very often.

 
Dec 04 01:11:56 localhost smartd[1048]: Device: /dev/sda [SAT], starting scheduled Long Self-Test.
Dec 04 01:11:56 localhost smartd[1048]: Device: /dev/sdb [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 100 to 64
Dec 04 01:12:01 localhost dbus-daemon[1024]: [system] Activating service name='org.kde.powerdevil.backlighthelper' requested by ':1.29' (uid=1000 pid=2494 comm="/usr/lib64/libexec/org_kde_powerdevil ")>
Dec 04 01:12:01 localhost dbus-daemon[1024]: [system] Successfully activated service 'org.kde.powerdevil.backlighthelper'
Dec 04 01:12:05 localhost smartd[1048]: Device: /dev/sdb [SAT], starting scheduled Long Self-Test.

Disabling it seems to be solving that issue

**localhost:/home/x/.local/share/Steam/ubuntu12_32 #** systemctl disable smartd 
Removed /etc/systemd/system/multi-user.target.wants/smartd.service. 
**localhost:/home/x/.local/share/Steam/ubuntu12_32 #** systemctl stop smartd   


A Long Self-Test takes a lot longer than 9 seconds to complete. The following sdb is a youthful 1T Seagate:

# smartctl -t long /dev/sdb
smartctl 7.2 2021-09-14 r5237 [x86_64-linux-5.14.21-150400.24.33-default] (SUSE RPM)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Extended self-test routine immediately in off-line mode".
Drive command "Execute SMART Extended self-test routine immediately in off-line mode" successful.
Testing has begun.
**Please wait 112 minutes for test to complete.**
Test will complete after Sun Dec  4 20:06:48 2022 EST
Use smartctl -X to abort test.

Thanks for the feedback. Great!

You may merge the two commands above into one by specifying “systemctl disable --now smartd”. Just in case you want to monitor some of your disks configure appropriately. Factory defaults are:

6700K:~ # grep -v ^\# /etc/smartd.conf|grep -v ^\$ 
**DEFAULT -d removable -s (S/../.././03|L/../(01|02|03|04|05|06|07)/7/01) 
DEVICESCAN **
6700K:~ #

Have your own settings as needed.