To update a device class, first complete the following fields and then click Finish, or click Cancel to end the task.
Select the recording format to be used when writing data to media.
Note: 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. | 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. |
DLT10 | 10.0GB | Uncompressed format, using only CompacTape III or CompacTape IV cartridges |
DLT10C | See note above.
20.0GB |
Compressed format, using only CompacTape III and CompacTape IV cartridges |
DLT15 | 15.0GB | Uncompressed format, using only CompacTape IIIxt or CompacTape IV cartridges
(not CompacTape III)
Only valid with DLT2000XT, DLT4000 and DLT7000 drives |
DLT15C | See note above.
30.0GB |
Compressed format, using only CompacTape IIIxt or CompacTape IV cartridges
(not CompacTape III)
Only valid with DLT2000XT, DLT4000 and DLT7000 drives |
DLT20 | 20.0GB | Uncompressed format, using only CompacTape IV cartridges
Valid with DLT4000, DLT7000, and DLT8000 drives |
DLT20C | See note above.
40.0GB |
Compressed format, using only CompacTape IV cartridges
Valid with DLT4000, DLT7000, and DLT8000 drives |
DLT35 | 35.0GB | Uncompressed format, using only CompacTape IV cartridges
Only valid with DLT7000 and DLT8000 drives |
DLT35C | See note
70.0GB |
Compressed format, using only CompacTape IV cartridges
Only valid with DLT7000 and DLT8000 drives |
DLT40 | 40.0GB | Uncompressed format, using CompacTape IV cartridges
Only valid with a DLT8000 drive |
DLT40C | See note above.
80.0GB |
Compressed format, using CompacTape IV cartridges
Only valid with a DLT8000 drive |
SDLT | 100.0GB | Uncompressed format, using Super DLT Tape 1 cartridges
Valid with a Super DLT drive |
SDLTC | See note above.
200.0GB |
Compressed format, using Super DLT Tape 1 cartridges
Valid with a Super DLT drive |
SDLT320 | 160.0GB | Uncompressed format, using Quantum SDLT I media |
SDLT320C | See note above.
320.0GB |
Compressed format, using using Quantum SDLT I media |
Select the name of the defined library object that contains the tape drives used by this device class.
Enter the maximum number of volumes that can be simultaneously mounted for the device class.
The following are possible values:
Drives | Specifies that the server determines the mount limit based on the number of drives defined and online in the library. |
number | Specify the maximum number
of drives used concurrently. This value can be any number from 0 to 256.
This value must not 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. |
Enter the amount of time, in minutes, to retain an idle volume before dismounting it.
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, the server uses this prefix to create the data set name.
Example: AB.CD2.E
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 one of these units:
K | Kilobyte |
M | Megabyte |
G | Gigabyte |
For more information on the default estimated capacity, see the Recording Format heading.
Enter the maximum length of time, in minutes, to wait for a volume to be mounted.