Administrator's Guide

Notes on Configuring Devices

The following sections present choices and procedures you need to be aware of when configuring devices for ADSM. The sections give pointers to additional information where applicable.

Troubleshooting Problems with Devices

You cannot share tape drives defined to ADSM with other applications. Errors and operation failures can occur when other applications attempt to use devices defined to ADSM. If you want to temporarily use a drive with another application, you can delete the drive definition from ADSM and lower the mount limit for the corresponding device class. Define the drive to ADSM again when the drive is available for ADSM use.

If you have not already done so, register the license for the device support module that you purchased. For more information on licensing, see "ADSM Licensing".

Setting the Library Mode

For ADSM to access a SCSI library, the device must be set for the appropriate mode. The mode that ADSM requires is usually called random mode; however, terminology may vary from one device to another. Two examples follow:

• Some libraries have front panel menus and displays that can be used for explicit operator requests. However, if the device is set to respond to such requests, it typically will not respond to requests made by ADSM.

• Some libraries can be placed in sequential mode, in which volumes are automatically mounted in drives by using a sequential approach. This mode conflicts with how ADSM accesses the device.

Refer to the documentation for your device to determine how to set it to a mode appropriate for ADSM.