Testy dysku

% smartctl -i /dev/sdc
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.6.57_1] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Samsung based SSDs
Device Model:     Samsung SSD 870 EVO 500GB
Serial Number:    S6PY0123456789A
LU WWN Device Id: 5 002538 f41565b76
Firmware Version: SVT01B6Q
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
TRIM Command:     Available, deterministic, zeroed
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:    Wed Oct 23 19:02:39 2024 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

% smartctl -l error -q errorsonly /dev/sdc
ATA Error Count: 12 (device log contains only the most recent five errors)
Error 12 occurred at disk power-on lifetime: 4829 hours (201 days + 5 hours)
Error 11 occurred at disk power-on lifetime: 4829 hours (201 days + 5 hours)
Error 10 occurred at disk power-on lifetime: 4829 hours (201 days + 5 hours)
Error 9 occurred at disk power-on lifetime: 4829 hours (201 days + 5 hours)
Error 8 occurred at disk power-on lifetime: 4829 hours (201 days + 5 hours)

% mkfs.btrfs -f \
    -L $(smartctl -i /dev/sdc | awk '/Serial Number/ { print $3; }') /dev/sdc1
btrfs-progs v6.11
See https://btrfs.readthedocs.io for more information.

NOTE: several default settings have changed in version 5.15, please make sure
      this does not affect your deployments:
      - DUP for metadata (-m dup)
      - enabled no-holes (-O no-holes)
      - enabled free-space-tree (-R free-space-tree)

Label:              S6PY0123456789A
UUID:               34f74c20-5478-4656-1776-b9c4244ebc67
Node size:          16384
Sector size:        4096	(CPU page size: 4096)
Filesystem size:    465.76GiB
Block group profiles:
  Data:             single            8.00MiB
  Metadata:         DUP               1.00GiB
  System:           DUP               8.00MiB
SSD detected:       no
Zoned device:       no
Features:           extref, skinny-metadata, no-holes, free-space-tree
Checksum:           crc32c
Number of devices:  1
Devices:
   ID        SIZE  PATH     
    1   465.76GiB  /dev/sdc1

sudo dd if=/dev/zero of=/run/media/tm/S6PY0123456789A/zero.data \
    count=0 bs=1 seek=465G status=progress

head -c 465G </dev/urandom >/run/media/tm/S6PY0123456789A/urandom.data

$ ulimit -a | grep '^file size'
file size                   (blocks, -f) 104857600

% cat /etc/security/limits.conf | grep 104857600
@wheel          hard    fsize   104857600