Quantum Scalar 50 Uživatelský manuál stáhnout pdf (Strana 22)

Quantum Scalar 50 Tape Drive Installation Instructions

Document 81-81769-02 A01

July 2008

22 Fibre Channel Connectivity Troubleshooting

SCSI ID Assignment

with Native Fibre

Channel Tape Drives

With native Fibre Channel tape drives, each tape drive is it’s own Fibre

Channel target with a dedicated WWN and on LUN 0. The host (including the

laptop using MAGMA box) will pick up the devices and assign local SCSI IDs

in the order that the SAN devices are discovered. This will in almost every

case NOT match the order of the devices as they are installed in the library.

This is not a problem from the customer point of view, as long as drive

serialization is enabled on the library and serialization is supported by the

customers ISV application. This will allow the ISV application to put the

drives in the correct order within the application.

In some rare cases it may be necessary to re-map the local SCSI ID

assignments so that the library changer is at SCSI ID 0 and the drive SCSI ID

assignments follow in order. The important thing to remember is that the

order of the SCSI IDs on your system will probably not match the order of the

drives in the library. Make sure to check the SCSI ID that is assigned to the

WWN of the drive you want to communicate with or you may be

communicating to the wrong drive

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