Re: Alignment issue with 4K disk

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> My personal opinion is: The test is semantically wrong in different
> aspects. May I ask what drive you are using and what interface it uses?
>
> Regards
>
> -Sven

Hi Sven,

drive info below:


root@nuc:~> hdparm -I /dev/sdc
/dev/sdc:

ATA device, with non-removable media
        Model Number:       WDC WD60EZRX-00MVLB1                    
        Serial Number:      WD-WX41D94RNKAX
        Firmware Revision:  80.00A80
        Transport:          Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
        Used: unknown (minor revision code 0x001f) 
        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:11721045168
        Logical  Sector size:                   512 bytes
        Physical Sector size:                  4096 bytes
        device size with M = 1024*1024:     5723166 MBytes
        device size with M = 1000*1000:     6001175 MBytes (6001 GB)
        cache/buffer size  = unknown
        Nominal Media Rotation Rate: 5700
Capabilities:
        LBA, IORDY(can be disabled)
        Queue depth: 32
        Standby timer values: spec'd by Standard, with device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 0
        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
                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
           *    General Purpose Logging feature set
           *    64-bit World wide name
           *    WRITE_UNCORRECTABLE_EXT command
           *    {READ,WRITE}_DMA_EXT_GPL commands
           *    Segmented DOWNLOAD_MICROCODE
           *    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
           *    unknown 76[15]
                DMA Setup Auto-Activate optimization
                Device-initiated interface power management
           *    Software settings preservation
           *    SMART Command Transport (SCT) feature set
           *    SCT Write Same (AC2)
           *    SCT Features Control (AC4)
           *    SCT Data Tables (AC5)
                unknown 206[12] (vendor specific)
                unknown 206[13] (vendor specific)
           *    DOWNLOAD MICROCODE DMA command
           *    WRITE BUFFER DMA command
           *    READ BUFFER DMA command
Security: 
        Master password revision code = 65534
                supported
        not     enabled
        not     locked
        not     frozen
        not     expired: security count
                supported: enhanced erase
Logical Unit WWN Device Identifier: 50014ee20b2a3e40
        NAA             : 5
        IEEE OUI        : 0014ee
        Unique ID       : 20b2a3e40
Checksum: correct


It is an internal 3,5" SATA-drive put into a USB3-enclosure and connected via USB3 in UAS mode:


Jan 10 01:13:26 nuc kernel: usb 2-4: new SuperSpeed USB device number 2 using xhci_hcd
Jan 10 01:13:26 nuc kernel: usb 2-4: New USB device found, idVendor=174c, idProduct=55aa
Jan 10 01:13:26 nuc kernel: usb 2-4: New USB device strings: Mfr=2, Product=3, SerialNumber=1
Jan 10 01:13:26 nuc kernel: usb 2-4: Product: ASM1153E
Jan 10 01:13:26 nuc kernel: usb 2-4: Manufacturer: asmedia
Jan 10 01:13:26 nuc kernel: usb 2-4: SerialNumber: 1234567891C4
Jan 10 01:13:26 nuc kernel: scsi host4: uas
Jan 10 01:13:26 nuc kernel: usbcore: registered new interface driver uas
Jan 10 01:13:26 nuc kernel: scsi 4:0:0:0: Direct-Access     ASMT     2115             0    PQ: 0 ANSI: 6
Jan 10 01:13:26 nuc kernel: sd 4:0:0:0: Attached scsi generic sg2 type 0
Jan 10 01:13:26 nuc kernel: sd 4:0:0:0: [sdc] Spinning up disk...
Jan 10 01:13:27 nuc kernel: ............ready
Jan 10 01:13:38 nuc kernel: sd 4:0:0:0: [sdc] 11721045168 512-byte logical blocks: (6.00 TB/5.45 TiB)
Jan 10 01:13:38 nuc kernel: sd 4:0:0:0: [sdc] 4096-byte physical blocks
Jan 10 01:13:38 nuc kernel: sd 4:0:0:0: [sdc] Write Protect is off
Jan 10 01:13:38 nuc kernel: sd 4:0:0:0: [sdc] Mode Sense: 43 00 00 00
Jan 10 01:13:38 nuc kernel: sd 4:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Jan 10 01:13:38 nuc kernel:  sdc: sdc1 sdc2 sdc3 sdc4
Jan 10 01:13:38 nuc kernel: sd 4:0:0:0: [sdc] Attached SCSI disk


As a side note: sdc4 was a dm-crypt/LUKS-encrypted partition before. To my knowledge the device mapper warnings started to appear after migration to VeraCrypt.

Cheers,

Eugen
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