Western Digital has sent an email to customers warning them that they could see data loss issues if they are using WD Drive Manager, WD Raid Manager and WD SmartWare software applications with Western Digital hard drives on Macs running OS X 10.9 Mavericks. The email reads:
Dear WD Registered Customer,
As a valued WD customer we want to make you aware of new reports of Western Digital and other external HDD products experiencing data loss when updating to Apple's OS X Mavericks (10.9). WD is urgently investigating these reports and the possible connection to the WD Drive Manager, WD Raid Manager and WD SmartWare software applications. Until the issue is understood and the cause identified, WD strongly urges our customers to uninstall these software applications before updating to OS X Mavericks (10.9), or delay upgrading. If you have already upgraded to Mavericks, WD recommends that you remove these applications and restart your computer.
The WD Drive Manager, WD Raid Manager, and WD SmartWare software applications are not new and have been available from WD for many years, however solely as a precaution WD has removed these applications from our website as we investigate this issue.
As noted in the email, users of Western Digital hard drives should uninstall WD Drive Manager, WD Raid Manager and WD SmartWare from their systems before updating to Mavericks, and if they have already updated, they should delete the apps and restart their systems.