New answers tagged disk
Another great tool for a quick overview where the load comes from is atop It can show you an overview over all resources (CPU, memory/swap, network and disk I/O) or you can drill down to a single resource and sort processes by how much they consume.
You could also try: sudo pvscan This will show you if any of the disks are in use by the logical volume manager. You can also use fdisk to determine which device corresponds to each physical drive: sudo fdisk -l /dev/sda sudo fdisk -l /dev/sdb sudo fdisk -l /dev/sbc sudo fdisk -l /dev/sdd
lsblk will show you the mountpoint of your disks.
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