API Guide
2-812 API Functions 601355 Rev A
If the specified MediaClass group contains any media, the
VSCMD_DeleteMediaClass request fails.
The total length of time the API software waits for a command
status in synchronous mode from VolServ is
(VSID_RETRY_LIMIT plus 1) multiplied by
VSID_TIMEOUT_VALUE.
If the VSID_ENTERPRISE_ID parameter is set to any value
other than zero, the final status for this request is returned to the
enterprise registered with VolServ.
When the API software is operating in asynchronous mode,
client software must call VS_Select to receive final status on
a Delete Media Class request submitted through the API
interface to the VolServ system.
Two levels of default parameter settings are used in the API
software—global defaults and command-specific defaults.
• Global defaults for all commands are initialized at startup
and can be set or retrieved using VS_Global_SetFields
and VS_Global_GetFields function calls.
• Command-specific parameter defaults for Delete Media
Class commands are set with
VSCMD_DeleteMediaClass_SetDefaults. If
command-specific defaults are set for Delete Media Class
commands, they override the global defaults for all
commands.
Tip
To override a default (global or command-specific)
parameter value for a specific instance of a Delete Media
Class command, the parameter identifier and the value to
be used for the parameter can be submitted on the specific
request itself.