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Method for Detecting Improperly Configured Control Units and Drives in a SMC Library

IP.com Disclosure Number: IPCOM000126850D
Original Publication Date: 2005-Aug-02
Included in the Prior Art Database: 2005-Aug-02
Document File: 1 page(s) / 21K

Publishing Venue

IBM

Abstract

This invention addresses the handling of misconfigured drives and/or control units to a tape library where a control unit may be attached to drives in another physical library. It also addresses a control unit attached to drives in the correct physical library but the wrong logical library and when attached drives have duplicate serial numbers.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 62% of the total text.

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Method for Detecting Improperly Configured Control Units and Drives in a SMC Library

Disclosed is a method for detecting improperly configured control units and drives in a SCSI Medium Changer library. The embodiment of this invention includes a 3953 Library Manager attached to a 3584 UltraScalable Tape Library. The 3584 can be comprised of multiple logical libraries and the 3953 will only interface with a single logical library within a 3584. During the configuration of a 3953 the 3584 library serial number and starting element address is entered on a configuration panel and saved in a configuration file. When a 3953 initializes with a control unit and/or Virtual Tape Server (VTS), the library serial number and starting element address is sent to the 3953 for verification. If the library serial number matches the value stored in the 3953 configuration file the control unit/VTS is wired to the correct physical 3584 library. If the starting element address matches the value stored in the 3953 configuration file the control unit/VTS is wired to the correct logical 3584 library. If the library verification fails, the operator will be notified that the port is not valid and all drives on that control unit/VTS will be set to "not installed".

If the control unit/VTS is wired correctly to the 3953 then the drive serial number and element address information for all drives known to the control unit/VTS are compared to existing drive information which is saved in a drive...