The procedures and commands in this section show how to manage devices and how to add devices. The device-allocation and device-deallocation commands are entered from the command line in a Command Tool or Shell Tool window:
allocate assigns a device to a user.
You can specify the device in either of the two ways shown in Table 4-4.
Option |
Action |
---|---|
device-name |
Allocate the device that matches the device name. |
-g device-type |
Allocate the device that matches the device group type. |
list_devices allows you to see a list of all allocatable devices, devices currently allocated, and allocatable devices not currently allocated.
The list_devices command requires one of the three options shown in Table 4-5.
Option |
Action |
---|---|
-l |
List all allocatable devices or information about the device. |
-n |
List devices not currently allocated or information about the device. |
-u |
List devices currently allocated or information about the device. |
Use the allocate command with a device specified by name, as in the example, or by type, with -g switch.
sar1% allocate st0 |
If the command cannot allocate the device, an error message displays in the console window. A list of all error messages appears in the allocate(1M) man page.
sar1% deallocate st0 |
Deallocation allows other users to allocate the device when you are finished.