Missing Media Drive Icon After a Cold Boot/Resuming from Standby
There has been much speculations on the said issue lately in the Dell Community and suggestions and investigation are compiling up without a definite point-of-failure of a missing HDD after a cold shutdown and/or resuming from standby. So far, the issue affects random types of Dell computers, adding up to its unusual behavior.
The root cause is really hard to figure out but Dell proactively released a fix through an updated firmware from their website. Download the HDD Firmware Update version 7.12, A01 to fix the issue.