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Using a SCSI Media Changer for a tape drive autoloader or simple automation

IP.com Disclosure Number: IPCOM000032871D
Original Publication Date: 2004-Nov-16
Included in the Prior Art Database: 2004-Nov-16
Document File: 1 page(s) / 25K

Publishing Venue

IBM

Abstract

Using a SCSI Medium Changer as a tape drive autoloader.

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Using a SCSI Media Changer for a tape drive autoloader or simple automation

Disclosed is a method of using a SCSI Medium Changer (SMC) as a tape drive autoloader. Existing autoloaders provide 3 basic modes of operation:

1) Auto: Automatically load the next tape in the stack of available tapes. Tapes are manually placed into the stack by an operator. The first tape is loaded when the operator signals that the stack is loaded. When the host requests the unload of a tape, the next tape in the stack is automatically loaded. When in this mode and tapes are available in the stack, an indication is given to the host that the autoloader on this tape drive is capable of autoloading the next tape.

2) Manual: Manually load the next tape in the stack of available tapes. Tapes are manually placed into the stack by an operator. Each tape is loaded into the drive when the operator signals that the autoloader should load the next tape in the stack. When in this mode the host is not given an indication that the autoloader can automatically load the next volume but manual intervention is required.

3) System: Load the next tape when the host system gives an indication that the next tape in the stack should be loaded. Tapes are manually placed into the stack by an operator. The first tape is loaded when the operator signals that the stack is loaded. When the host requests the unload of a tape it may then request that the next tape in the stack should be automatically loaded. When in this mode and tapes are available in the stack, an indication is...