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.
Select the recording format to be used when writing data to quarter-inch cartridge (QIC) 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 the DRIVE value when a mixture of devices 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. |
QIC120 | 26.0MB to 172.0MB | 120 QIC format, depending on media
Using DC600XTD, DC6150, DC6320, and DC6525 |
QIC150 | 31.0MB to 207.0MB | 150 QIC format, depending on media
Using DC600XTD, DC6150, DC6320, and DC6525 |
QIC525 | 65.0MB to 427.0MB | 525 QIC format, depending on media
Using DC6320 and DC6525 |
QIC1000 | 169.0MB to 1.1GB | 1000 QIC format, depending on media
Using DC9100 and DC9120XL |
QIC2GB | 2.0GB | Uncompressed 2000 QIC format
Using DC9100 and DC9120XL |
QIC2GBC | See note above.
4.0GB |
Compressed 2000 QIC format |
QIC4GB | 4.0GB | Uncompressed 4000 QIC format |
QIC4GBC | See note above.
8.0GB |
Compressed 4000 QIC format |
QIC12GB | 12.0GB | Uncompressed 12000 QIC format, using 343-meter tape |
QIC12GBC | See note above.
24.0GB |
Compressed 12000 QIC format, using 343-meter tape |
QIC5010 | 13.0GB to 16.0GB | Uncompressed 5010 QIC format, depending on media |
QIC5010C | See note above.
26.0GB to 32.0GB |
Compressed 5010 QIC format, depending on media |
QIC20GB | 20.0GB | Uncompressed 20000 QIC format |
QIC20GBC | See note above
40.0GB |
Compressed 20000 QIC format |
QIC25GB | 25.0GB | Uncompressed 25000 QIC format |
QIC25GBC | See note above.
50.0GB |
Compressed 25000 QIC format |
QIC30GB | 30.0GB | Uncompressed 30000 QIC format |
QIC30GBC | See note above
60.0GB |
Compressed 30000 QIC format |
QIC50GB | 50.0GB | Uncompressed 50GB QIC format, specific to the Tandberg SLR100 drive |
QIC50GBC | See note
100.0GB |
Compressed 50GBC QIC format, specific to the Tandberg SLR100 drive |
Select the library name that contains the QIC 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 | Specifies 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 sequential access volume assigned to this device class, the server uses this parameter to create the data set name.
Example: AB.CD2.E
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.
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.