Adding parameters to the kernel command line is nothing to be scared of. You should however know what the parameters you are setting are intended for and how they will affect the systems behavior. The official documentation of the parameters for the kernel can be found here https://www.kernel.org/doc/html/latest/admin-guide/kernel-parameters.htmlThanks but now the drive shows as not active. I ran an update this morning and rebooted but that drive now shows enabled but not active. I also got another smart values email warning and the ATA errors have increased further. I tried restarting everything but the drive won't kick in. I went ahead and bought a new one so will change it out in a day or two.
Not sure about editing the kernel command line. It sounds a bit intimidating.