Defining a File Device Class
To define a file device
class, first complete the following fields and then click Finish,
or click Cancel to end the task.
Device Class Name
Enter the name of the device class to be defined. The maximum
length of the device class name is 30 characters.
Mount Limit
Enter the maximum number of file volumes
that can be simultaneously mounted for the device class
- The default is 2.
- Specify an integer from 0 to 256.
- For 3995 devices emulating 3390 devices, this value
should not be set higher than the number of concurrent
input/output streams possible on the media storing the server volumes.
- Specify a Mount Limit of 1 when the device class will
only be used for export and for database backup/dump
activities. Specify a Mount Limit of 2 to allow
reclamation when the device class will be used as a copy
storage pool.
Maximum Capacity
Enter the maximum capacity for the file volumes. The largest
accepted value is 2047MB
and the smallest accepted value is 100KB. The default is 1MB.
The value must be an integer followed by one of these units:
K |
Kilobyte |
M |
Megabyte |
G |
Gigabyte |
File Mode or Directory
- A file mode associated with an SFS directory cannot be
specified with the File Mode parameter.
- File Mode and Directory are mutually exclusive
parameters.
- File Mode
- Enter a 1 or 2 character string. The first character is
required and must be a letter from A to Z. The second
character is optional and can be a numeric digit from 0
to 6. The first character identifies the minidisk
that has been accessed in read-write mode.
- Directory
- Enter a fully qualified SFS directory name of the format filepool:userid
followed by up to 8 sub-directory names which are
separated by periods. Tivoli Storage Manager servers should not share SFS
directories; each server
must have separate directories for file device classes.
The server must have write authority to the directory and
files unless all volumes are read-only or full.