>>169
Western digital社のtrimコマンドの用い方、有用性についての公式解説は↓だったわさ

Trim Command - General Benefits for Hard Disk Drives
https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/product/internal-drives/wd-purple-hdd/whitepaper-generic-benefit-for-hard-disk-drive.pdf