StorageTek 6 manual Swapping Library Transports - New Model Types

Swapping Library Transports - New Model Types

When you physically upgrade or change tape transports, a mismatch can occur between the model types stored in the CDS and the updated model types specified in the UNITDEF command. If this situation arises, you receive an error message:

SLS1628I UNITDEF: Record 1 ...MODEL is incompatible with UNIT

Follow this procedure to avoid the problem:

1.Terminate the HSC on all hosts by issuing the MVS STOP command.

2.Physically replace the tape transports.

3.Run the SET SLIDRIVS utility to omit the device numbers being replaced. It is only necessary to specify the device numbers being replaced, not all device numbers on the panel. Example:

SET SLIDRIVS(,,,,,,2307,2308,2309,230A),FORLSMID(0000),FORPANEL(01)

4.Run SET SLIDRIVS again to add the device numbers back in. This action clears the model type in the CDS and allows the UNITDEF command to load at HSC startup. Example:

SET SLIDRIVS(2301,2302,2303,2304,2305,2306,2307,2308,2309,230A),+

FORLSMID(0000),FORPANEL(01)

5.Update the UNITATTR statements to reflect the new model type.

6.Start the HSC on one host by executing the HSC start procedure.

7.When the HSC reaches the full service level, start the HSC on all remaining hosts.

Chapter 2. Host Software Component Functions 57

1st ed., 6/30/04 - 312579601