Specifications

For example, if you select destructive (write/read) testing for a disk that
really should be write protected, then you can use this command to change to
nondestructive (read only) testing for the disk. Or, if you set up a COM or LPT
for external loopback testing and find that loopback plugs are not installed,
then you can use the devices command to reconfigure the COM or LPT for
internal loopback testing only.
The first argument must be the name of the requested device. The /n modifier
can be used to request a specific device of the type given. The following
example specifies COM2 and no other COM devices:
RUN> devices com/2
Enter
The format of the /n modifier depends on the device type. Table 3–8 shows the
format for each device type.
Table 3–8 Devices Command Formats
Device Type(s) Format Description
COM
LPT
nn= device port number
Disk x:y[:z] x = disk adapter slot number
y = SCSI ID address
z = logical unit number (hard disk drives only)
Ethernet nn= device slot number
If the /n modifier is not provided, then all devices of the given type will be
affected.
A flag list can be included in the command line, which will cause the specified
device flag(s) to be set to the requested state. When a flag list is not included,
the current state of the specified device(s) is displayed. A flag list has the
format (enable/disable) flag1, flag2, ..., flagn. You must specify the state
followed by a list of all flags that should be set to that state.
The /n modifier for the disk device type has the format x:y[:z], where x:y:z
specifies the disk whose flag state should be displayed or modified. The disk
number can be found in the test list. For example, dev disk/0:0 specifies the
RX23 diskette drive, and dev disk/3:1:0 specifies a disk on the SCSI bus.
Table 3–9 shows the available state flags for supported devices.
System Exerciser 3–15