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Data recovery
hdparm -c0 /dev/sdi hdparm -X1 /dev/sdi hdparm -d0 /dev/sdi echo 1 > /sys/block/sdi/device/queue_depth
fast erase whole disc
sudo hdparm --user-master u --security-set-pass ABC /dev/sdX sudo hdparm --user-master u --security-erase ABC /dev/sdX # check if device security is "not enabled" hdparm -I /dev/sdX
sata hotplug
Plug
echo 0 - 0 > /sys/class/scsi_host/host5/scan
Rescan all ports:
exec tee /sys/class/scsi_host/host*/scan <<<'- - -' >/dev/null
Unplug
echo 1 > /sys/block/(whatever)/device/delete