Use the VOLSAFE device type to work with StorageTek VolSafe brand media and drives. This technology uses media that cannot be overwritten. Therefore, do not use these media for short-term backups of client files, the server database, or export tapes.
To issue this command, you must have system privilege or unrestricted storage privilege.
>>-DEFine DEVclass--device_class_name---------------------------> >--LIBRary--=--library_name--DEVType--=--VOLSAFE----------------> .-FORMAT--=--DRIVE---------. >--WORM--=--Yes--+--------------------------+-------------------> '-FORMAT--=--+-DRIVE-----+-' +-9840------+ +-9840-C----+ +-T9840C----+ +-T9840C-C--+ +-T9840D----+ +-T9840D-C--+ +-T10000A---+ +-T10000A-C-+ +-T10000B---+ +-T10000B-C-+ +-T10000C---+ +-T10000C-C-+ +-T10000D---+ '-T10000D-C-' .-MOUNTRetention--=--60------. >--+----------------------+--+----------------------------+-----> '-ESTCAPacity--=--size-' '-MOUNTRetention--=--minutes-' .-PREFIX--=--ADSM--------------. >--+------------------------------+-----------------------------> '-PREFIX--=--+-ADSM----------+-' '-volume_prefix-' .-MOUNTWait--=--60------. .-MOUNTLimit--=--DRIVES-----. >--+-----------------------+--+---------------------------+---->< '-MOUNTWait--=--minutes-' '-MOUNTLimit--=--+-DRIVES-+-' +-number-+ '-0------'
For information about defining a library object, see DEFINE LIBRARY (Define a library).
Format | Estimated Capacity | Description |
---|---|---|
DRIVE | – | The server selects the highest format that
is supported by the drive on which a volume is mounted. Attention: Avoid specifying DRIVE when a mixture of drives is
used within the same library. For example, do not use this option
for a library that contains some drives that support recording formats
superior to other drives.
|
9840 | 20 GB | Uncompressed (standard) format, using a 20 GB cartridge with 270 meters (885 feet) of tape |
9840-C | See note 80 GB |
LZ-1 Enhanced (4:1) compressed format, using an 80 GB cartridge with 270 meters (885 feet) of tape |
T9840C | 40 GB | Uncompressed T9840C format, using a StorageTek 9840 cartridge |
T9840C-C | 80 GB | Compressed T9840C format, using a StorageTek 9840 cartridge |
T9840D | 75 GB | Uncompressed T9840D format, using a StorageTek 9840 cartridge |
T9840D-C | 150 GB | Compressed T9840D format, using a StorageTek 9840 cartridge |
T10000A | 500 GB | Uncompressed T10000A format, using a StorageTek T10000 cartridge |
T10000A-C | 1 TB | Compressed T10000A format, using a StorageTek T10000 cartridge |
T10000B | 1 TB | Uncompressed T10000B format, using an Oracle StorageTek T10000 cartridge |
T10000B-C | 2 TB | Compressed T10000B format, using an Oracle StorageTek T10000 cartridge |
T10000C | 5 TB | Uncompressed T10000C format, using an Oracle StorageTek T10000 T2 cartridge |
T10000C-C | 10 TB | Compressed T10000C format, using an Oracle StorageTek T10000 T2 cartridge |
T10000D | 8 TB | Uncompressed T10000D format, using an Oracle StorageTek T10000 T2 cartridge |
T10000D-C | 15 TB | Compressed T10000D format, using an Oracle StorageTek T10000 T2 cartridge |
You can specify this parameter if the default estimated capacity for the device class is inaccurate due to compression of data.
You must specify this value as an integer followed by one of the following unit indicators: K (kilobytes), M (megabytes), G (gigabytes), or T (terabytes). The smallest value that is accepted is 1 MB (ESTCAPACITY=1M).
For example, specify that the estimated capacity is 9 GB with the parameter ESTCAPACITY=9G.
This parameter can improve response time for sequential access media mounts by leaving previously mounted volumes online.
However, for EXTERNAL library types (that is, a library that is managed by an external media management system), set this parameter to a low value (for example, two minutes) to enhance device sharing between applications.
If you have a naming convention for media labels to support your current management system, use a volume prefix that conforms to your naming conventions.
AB.CD2.E
An example of a high-level archive file name that uses the default prefix is ADSM.volume1.
If you plan to use the simultaneous-write function, ensure that sufficient drives are available for the write operation. If the number of drives needed for a simultaneous-write operation is greater than the value of the MOUNTLIMIT parameter for a device class, the transaction fails.