Updating a QIC 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 Tivoli Storage Manager selects the highest format that can be supported by the drive on which a volume is mounted.
QIC120 Specifies that Tivoli Storage Manager writes data using the DC600XTD, DC6150, DC6320, and DC6525 formats.
QIC150 Specifies that Tivoli Storage Manager writes data using the DC600XTD, DC6150, DC6320, and DC6525 formats.
QIC525 Specifies that Tivoli Storage Manager writes data using the DC6320 and DC6525 formats.
QIC1000 Specifies that Tivoli Storage Manager writes data using the DC9100 and DC9120XL formats.

Library Name

Select the library name that contains the QIC tape 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.

The following are possible values:

Drives Specify the number of drives defined and online in the library. The default is Drives.
value Specify the maximum number of drives used concurrently. This value must never be allowed to exceed the number of drives defined and online in the library. For external libraries, specify the number of drives for the library.
0 The value of zero prevents new transactions from gaining access to the storage pool. 

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 sequential access volume assigned to this device class, Tivoli Storage Manager uses this parameter to create the data set name.

Example: AB.CD2.E

Estimated Capacity

Enter the estimated capacity for the volumes categorized by 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. Specify an number 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 in a manual library.