Dell PowerEdge 1600SC 매뉴얼 - 페이지 12

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Section

Enabling WOL under Red Hat Enterprise

Linux

versions 4 and later and SUSE

Linux Enterprise Server versions 9 and

later

NICs and LOMs from Dell have WOL disabled by default. Having more than

one device enabled for WOL in a system can overload the 3.3‐volt auxiliary

power supply and cause it to malfunction. Dell strongly recommends that only

one device be enabled for WOL per system. To enable WOL, create a DOS‐

bootable floppy and copy the utility, listed in the Tools section above, specific to

the WOL device to it from the Dell Open Management Server Assistant or

download it from http://support.dell.com.

The steps to Enabling WOL under Red Hat Enterprise Linux versions 4 and later

and SUSE Linux Enterprise Server versions 9 and later are as follows:

1. Login to the BASH shell with root privileges. If the most recent Dell

provided drivers are not installed, install them. Run 'ethtool ethX' where

'ethX' is the name and instance of the desired WOL network interface. The

WOL capabilities and current default settings will be displayed in the

output.

2. Run 'ethtool ethX –s wol g' to enable Magic Packet WOL, where ethX is the

name and instance of the desired WOL network interface.

3. Halt Linux and shut the system off. The connection LED on the NIC and

switch or hub will remain on, indicating the NIC is monitoring the network

for wake up packets directed to its MAC address.

October 2007

a. The ethtool man pages have more information on settings and

meanings of the settings.

b. If the default settings show WOL disabled (as they will by default as

shipped from Dell) then following steps 1 and 2 in the Out‐of‐Box

WOL instruction section will change the default setting.

Enabling WOL with ethtool when the default is disabled will not

persist across reboots, meaning that shutting down and performing

WOL once, then shutting down again and attempting WOL will not

be successful without running ethtool again to enable WOL. The use

of a startup script can enable WOL on each subsequent reboot if

desired, or changing the default from the DOS based utilities.

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Dell Enterprise Product Group