$ sudo diskutil eraseDisk FAT32 SSD512 MBRFormat /dev/disk14 Password: Started erase on disk14 Unmounting disk Creating the partition map Waiting for partitions to activate Formatting disk14s1 as MS-DOS (FAT32) with name SSD512 Mounting disk Finished erase on disk14
$ diskutil list /dev/disk14 /dev/disk14 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: FDisk_partition_scheme *1.0 TB disk14 1: DOS_FAT_32 SSD512 1.0 TB disk14s1
[[ デバイス情報 ]] $ sudo smartctl -a /dev/disk14 smartctl 7.5 2025-04-30 r5714 [Darwin 27.2.0 arm64] (local build) Copyright (C) 2002-25, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION === Model Number: CT1000P3PSSD8 Serial Number: 2327E6E9FD10 Firmware Version: P9CR40A PCI Vendor/Subsystem ID: 0xc0a9 IEEE OUI Identifier: 0x00a075 Controller ID: 1 NVMe Version: 1.4 Number of Namespaces: 1 Local Time is: Tue Oct 6 12:55:31 2026 JST Firmware Updates (0x12): 1 Slot, no Reset required Optional Admin Commands (0x0017): Security Format Frmw_DL Self_Test Optional NVM Commands (0x005e): Wr_Unc DS_Mngmt Wr_Zero Sav/Sel_Feat Timestmp Log Page Attributes (0x06): Cmd_Eff_Lg Ext_Get_Lg Maximum Data Transfer Size: 64 Pages Warning Comp. Temp. Threshold: 85 Celsius Critical Comp. Temp. Threshold: 95 Celsius
=== START OF SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED
SMART/Health Information (NVMe Log 0x02, NSID 0xffffffff) Critical Warning: 0x00 Temperature: 38 Celsius Available Spare: 100% Available Spare Threshold: 5% Percentage Used: 0% Data Units Read: 44,117 [22.5 GB] Data Units Written: 54,101 [27.6 GB] Host Read Commands: 1,653,001 Host Write Commands: 726,875 Controller Busy Time: 1 Power Cycles: 58 Power On Hours: 0 Unsafe Shutdowns: 57 Media and Data Integrity Errors: 0 Error Information Log Entries: 0 Warning Comp. Temperature Time: 0 Critical Comp. Temperature Time: 0 Temperature Sensor 1: 38 Celsius Temperature Sensor 2: 42 Celsius Temperature Sensor 8: 38 Celsius
Error Information (NVMe Log 0x01, 16 of 16 entries) No Errors Logged
Self-test Log (NVMe Log 0x06, NSID 0xffffffff) Self-test status: No self-test in progress No Self-tests Logged
Crucial P3 Plus 1TB (CT1000P3PSSD8) は、S.M.A.R.T.上では使用時間0時間・エラーなし