Mac-mini with 10.11.3.
I have an OWC (mini-stack) external drive that used to mount fine, including after upgrading from Lion to El Capitan. All of a sudden the drive won't mount. Dis Utility doesn't see the drive, Drive Geius doesn't see the drive.
Two days ago, the drive mounted after maybe a dozen attempts but I haven;'t managed that again. That's my backup drive.
Please advise.
I have an OWC (mini-stack) external drive that used to mount fine, including after upgrading from Lion to El Capitan. All of a sudden the drive won't mount. Dis Utility doesn't see the drive, Drive Geius doesn't see the drive.
Two days ago, the drive mounted after maybe a dozen attempts but I haven;'t managed that again. That's my backup drive.
Please advise.