If any moveable parts are running, the Laptop, especially Lenovo and HDD vendors such as WesternDigital should be smart enough to design their laptops to handle such stress, e.g. covered fan.
You can determine accoustically, or by commands, whether moveable parts are running.
Check whether HDD is active/idle or standby (not spinning):
$ sudo hdparm -C /dev/sda
/dev/sda is usually the primary HDD. You can determine your device names by using the lsblk command, which stands for “list block devices”.
Check the fan rotation speed:
As far as I know, there is no SCSi multimedia command in the command set, which allows directly reading the optical drive rotation speed, but optical drives should usually be far less fragile than hard drives, and if anything breaks, then it is the drive, not the disc. But you can reduce the rotation speed:
$ eject -x 20
If you would like to know more about each command, then you can use the --help command switch or man command, maybe help depending on some distributions.
Hard drives are designed to handle some stress and minimize damage:
- Writing head airflow control - avoid headcrash.
- If freefall or too strong shakes are detected by sensors inside the HDD, it will quickly spin down and move head to safe position to minimize physical damage.
- If the air pressure is too low (i.e. usually at high altitudes), which can cause the airflow to break like on aircraft stalling, the drive's internal protection mechanisms are accordingly more paranoid, and may even suspend operation temporarily.
- HDDs are usually mounted upside down in laptops since decades.