Updating a 8mm Device Class

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

Recording Format

Select the recording format to be used when writing data to volumes in this device class.

Note: This format uses the tape drive hardware compression feature. Depending on the effectiveness of the compression, the actual capacity may be greater than the listed value. The actual capacities may vary depending on which cartridges and drives are used.

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.

8200 2.3GB Uncompressed (standard) format, using standard 112-meter tape cartridges
8200C See note above.

3.5GB

4.6GB

Compressed (standard) format, using standard 112-meter tape cartridges
8500
15m
54m
112m
160m XL
See note above.

600MB
600MB
600MB
2.35GB
2.35GB
2.35GB
5GB or 10.0GB
5GB or 10.0GB
5GB or 10.0GB
7GB

Drives (Read Write)

Eliant 820 (RW)
Exabyte 8500/8500C (RW)
Exabyte 8505 (RW)
Eliant 820 (RW)
Exabyte 8500/8500C (RW)
Exabyte 8505 (RW)
Eliant 820 (RW)
Exabyte 8500/8500C (RW)
Exabyte 8505 (RW)
Eliant 820 (RW)

8500C
15m


54m


112m


160m XL
See note above.

1.2GB
1.2GB
1.2GB
4.7GB
4.7GB
4.7GB
5GB or 10.0GB
5GB or 10.0GB
5GB or 10.0GB
7GB

Drives (Read Write)

Eliant 820 (RW)
Exabyte 8500/8500C (RW)
Exabyte 8505 (RW)
Eliant 820 (RW)
Exabyte 8500/8500C (RW)
Exabyte 8505 (RW)
Eliant 820 (RW)
Exabyte 8500/8500C (RW)
Exabyte 8505 (RW)
Eliant 820 (RW)

8900
15m
54m
112m
160m XL
22m
125m
170m
See note above.

Not applicable
Not applicable
Not applicable
Not applicable
2.5 GB
Not applicable
40 GB

Drive (Read Write)

Mammoth 8900 (R)
Mammoth 8900 (R)
Mammoth 8900 (R)
Mammoth 8900 (R)
Mammoth 8900 (RW)
Mammoth 8900 (RW with upgrade)
Mammoth 8900 (RW)

AIT

15m                      50m                      170m SDX1-25C  230m SDX1-35C  170m SDX2-36C  230m SDX2-50C

See note above.

1.75GB
7.0GB
25.0GB
35.0GB
36.0GB
50.0GB

Drive

AIT Drive (300/300C)
AIT Drive (300/300C)
AIT and AIT2 Drives (300/300C, 500C)
AIT and AIT2 Drives (300/300C, 500C)
AIT2 Drive (500C)
AIT2 Drive (500C)

AITC                   

15m                      50m                      170m SDX1-25C 230m SDX1-35C  170m SDX2-36C  230m SDX2-50C

See note above.

3.5 GB
14.0 GB
50.0 GB             
70.0 GB             
72.0 GB
100.0 GB

Drive

AIT Drive (300/300C)
AIT Drive (300/300C)
AIT and AIT2 Drives (300/300C, 500C)
AIT and AIT2 Drives (300/300C, 500C)
AIT2 Drive (500C)
AIT2 Drive (500C)

M2
75m
150m
225m
See note above.

20.0GB
40.0GB
60.0GB

Drive (Read Write)

Mammoth II (RW)
Mammoth II (RW)
Mammoth II (RW)

M2C
75m
150m
225m
See note above.

50.0GB
100.0GB
150.0GB

Drive (Read Write)

Mammoth II (RW)
Mammoth II (RW)
Mammoth II (RW)

Library Name

Select the name of the library that contains the 8mm tape drives used by this device class.

Mount Limit

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

The following are possible values for Mount Limit:

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 in this device class by the server.

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 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 volume assigned to this device class, the server uses this prefix to create the data set name.

Example: AB.CD2.E

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 one of these units:

K Kilobyte
M Megabyte
G Gigabyte

For more information on the default estimated capacity, see the Recording Format heading.

Mount Wait Period

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