Defining a 3570 Device Class

To define a device class, first complete the following fields and then click Finish, or click Cancel to end the task.

Device Class Name

Enter the name of the device class to be defined. The maximum length of the device class name is 30 characters.

Recording Format

Select the recording format to be used when writing data to media. This parameter is required.

Note: If this format uses the tape drive hardware compression feature, depending on the effectiveness of compression, the actual capacity may be greater than the listed value.

Format Estimated Capacity Description
Drive Determined by drive capacity. Specifies that the server selects the highest format that can be supported by the drive on which a volume is mounted.

Avoid specifying DRIVE when a mixture of drives is used within the same library.

For example, do not use this option for a library containing some drives that support recording formats superior to other drives.

3570 See note above.

5.0GB

Uncompressed (basic) or compressed (if available) format

If you are using D/T3570-Bxx, you must use "B" media and specify FORMAT=3570.

3570E See note above.

5.0GB

Uncompressed (basic) or compressed (if available) format

If you are using D/T3570-Cxx, you must use "C" media and specify FORMAT=3570E.

Library Name

Select the name of the defined library object that contains the tape drives used by this device class.

Mount Limit

Enter the maximum number of volumes that can be simultaneously mounted for the device class.

Mount Retention Period

Enter the amount of time, in minutes, to retain an idle volume before dismounting it.

Tape Volume Prefix

Enter the high level qualifier of the file name that the server writes into the media labels. For each volume assigned to this device class, Tivoli Storage Manager uses this prefix to create the data set name.

Example: AB.CD2.E

Estimated Capacity

Enter the estimated capacity for the volumes categorized by this device class. Specify an integer followed by a scale factor.

Scale factors and their meanings are:

K Kilobyte
M Megabyte
G Gigabyte

Mount Wait Period

Enter the maximum length of time, in minutes, to wait for a volume to be mounted.