Updating an Optical or WORM Device Class

To update a device class, first complete the following fields and then click Finish, or click Cancel to end the task. Existing values are displayed.

Recording Format

Select the recording format to be used when writing data to media.

Drive Specifies that ADSM selects the highest format that can be supported by the drive on which a volume is mounted.
650MB Specifies that ADSM writes data to a 650 MB 5.25-inch optical drive.
1300MB Specifies that ADSM writes data to a 1300 MB 5.25-inch optical drive.
2600MB Specifies that ADSM writes data to a 2600 MB 5.25-inch optical drive.

Library Name

Select the name of the library that contains the optical drives used by this device class.

Mount Limit

Enter the maximum number of volumes that can be simultaneously mounted for the device class. This value can be any number from 0 to 256.

Possible values for this parameter:

Drives Specifies that ADSM determines the mount limit based on the number of drives defined and online in the library. The default is Drives. For external libraries you should not use the value of Drives. You need to specify the number of drives for the library as the Mountlimit value.
mount limitvalue Specify a number for the maximum number of drives used concurrently in this device class by ADSM. This value must never be allowed to exceed the number of drives that are defined and online in the library that services this device class.
0 The value of zero prevents new transactions from gaining access to the storage pool.

Mount Retention

Enter a number, to be interpreted as minutes, for the amount of time to retain an idle volume before dismounting it.

Estimated Capacity

Enter the estimated capacity for the volumes assigned to this device class. You do not need to specify an estimated capacity unless the drives perform data compression, or you have volumes of nonstandard size. The value must be an integer followed by a scale factor..

Scale factors and their meanings are:

K Kilobyte
M Megabyte
G Gigabyte

Mount Wait

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