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电源管理技术初探(WOL,STR)

 happy123god 2013-04-12

The normal homeusers (95% of the users) use the nas for backup and filestorage.
Normaly they do not need 24/7 Freenas service.
To save energy and money, it would be fine, if freenas has some configurable energy save plans. 
In the Supend to RAM Mode (S3), normaly you reduce power consumption by 90% 

So the requested features are:

  1. wake up on lan (wol)
  2. power off the disks after some time
  3. suspend to RAM (S3)
  4. suspend to disk (or usb stick)

Wake up on Lan:
Nearly all Linux versions using ethtool to config the Networkcards with the following params:

p - Wake on phy activity
u - Wake on unicast messages
m - Wake on multicast messages
b - Wake on broadcast messages
a - Wake on ARP
g - Wake on MagicPacket?(tm)
s - Enable SecureOn?(tm) password for MagicPacket?(tm)
d - Disable (wake on nothing). This option clears all previous options 

It would be fine, if you add this functionality to your development plan.
BR Rainer


转自: http://www./eschool/includes/zhuanti/faq/info/1/2/data/show3269.shtml

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