Just what is persistent binding anyway?
Persistent binding: a feature of Fibre Channel (FC) host bus adapters that allows you to permanently assign a system SCSI target ID to a specific FC device, even though the device's ID on the FC loop (D_ID) may be different each time the FC loop initializes. This capability is useful in multiserver environments that share a device, as you can have multiple servers use the same SCSI target ID when referring to the shared FC device.
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This was first published in June 2004