Yesterday I had an issue appear in Dell MDSM (Modular Disk Storage Manager), which reported unreadable sectors detected. In MDSM I went to the Support tab and chose gather support information in order to save the support information to a zip file on the server running MDSM.
Inside this zip file was a file called unreadableSectors.txt. This file showed that the disk in slot 5, enclosure 0 was the source of these issues.
We had a hot spare available in slot 14, so before getting Dell to replace the faulty disk I decided to mark the disk as failed and get the Hot Spare to kick into action. Manually failing a disk on a Dell PowerVault MD3000i SAN Array is quite straight forward, but it isn’t something that is available in the MDSM gui. Below is the path to the utility and the command to fail disk 5.