Check-Cf; Clear - Siemens SINUMERIK 840D sl Commissioning Manual

Service Commands
3.4 Description of the actions
3.4.2

Check-cf

Description
Syntax:
Alternative names:
Privilege level:
With this action, the CF card is checked reading to see whether it contains defective sectors.
If errors occur, this is noted in the file /var/log/messages.
3.4.3

Clear

Description
Various actions can be performed with the "clear" command; only the "clear dhcp" command
is relevant here.
clear dhcp
Syntax:
Alternative names:
Privilege level:
This command clears any state of the DHCP server at the specified interface (default setting
is the system network) and resets it to its initial state. This means that the Lease data is
deleted: all IP addresses are re-assigned in the network and the server forgets having ever
seen a master server.
This action is only appropriate on a machine on which the active DHCP server runs.
Note
The clearing of the Lease data does not delete the entire file, but only the data contained
therein. This action also increments the version number, so that available standby DHCP
servers can also perform the deletion.
26
sc check-df
checkcf
user
sc clear dhcp [-INTERFACE]
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service
Commissioning Manual, 01/2008, 6FC5397-1DP10-3BA0
NCU Operating System (IM7)