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    If this really is a SSD you might want to reformat it to align the erase blocks with the partitions.
    – symcbean
    Commented Feb 21, 2013 at 13:58
  • 3
    SATA (Serial ATA) refers to the connection type of the drive, and does not imply that it is a Hard Disk Drive (HDD). SSDs can simultaneously be SATA, so I'm suggesting an edit to the title.
    – SpellingD
    Commented Feb 21, 2013 at 17:10
  • How to check if my Ubuntu is placed on SSD?
    – phuclv
    Commented Dec 6, 2016 at 2:21
  • Nowadays, the output of fdisk -l also includes a Disk model line for each physical disk, where SSD disks typically have the string SSD in their model name which appears there (at least on my system, and otherwise you could search the Internet for the model). But other answers below are perhaps more robust.
    – matanox
    Commented Jun 6, 2021 at 17:55