Consider the following scenario. On a Windows Vista-based computer, you start the Microsoft iSCSI Initiator service. Then, you log off an iSCSI target. In this scenario, the following event is written to the System log:

Log Name: System
Source: PlugPlayManager
Event ID: 12
Task Category: None
Level: Error
Keywords: Classic
Description: The device Device_Name (SCSI\Disk&Ven_EQLOGIC&Prod_100E-00\1&1c121344&0&000000) disappeared from the system without first being prepared for removal.

Note: This event occurs only if the target is an unformatted (RAW) volume.