ATOTCLIC Linux Rescan disk

Rescan disk

echo "- - -" > /sys/class/scsi_host/host[0-9]/scan

for i in `ls /sys/class/scsi_host/`; do sudo echo "- - -" > /sys/class/scsi_host/$i/scan ; done

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btrfsbtrfs

$ btrfs filesystem defrag -v -r dir/ Recursively defragment files under dir/, print files as they are processed. The file names will be printed in batches, similarly the amount of