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Re: [Bacula-users] macbook pro as a client
2015-09-15 09:00:42
On 9/14/2015 5:38 PM, Dan Langille
wrote:
Looks like the sd might be waiting for the
fd which is "sleeping" if top on the mac is any
indication.
This is the second time in recent days I've
seen that _expression_ used in conjunction with FD, Mac, and
top. Perhaps you were on IRC.
OSX on MBP is, by default, very aggressive with power management.
OSX always shuts down network PHYs when in "full sleep" state. Apple
has a proprietary power state named "Power Nap" that allows remains
awake enough to maintain a wifi connection.
System Preferences -> Energy Saver
In Energy Saver,on Power Adapter tab, slide "Computer sleep" slider
to the right all the way to "Never"
Check "Put hard disks to sleep..."
Check "Wake for network access..."
Check "Enable Power Nap..."
Note that it isn't enough to check "Enable Power Nap". The "Computer
sleep" slider must be slid to "Never". Also note that this is not
possible when on battery.
Now the bad news. A MBP is not designed to run with the lid closed.
Closing the lid interferes with proper heat dissipation should the
CPU be running at full speed, so the MBP automatically goes to full
sleep when the lid is closed. Supposedly, enabling "internet
connection sharing" prevents this, though I have not tested it.
System Preferences -> Sharing
Check the "Internet sharing" box on the left
Select the interface to share on the right.
These Macs have been very frustrating to use with Bacula, mostly due
to the aggressive power management. And now we will have to deal
with the same thing with Windows 10, most likely. I really believe
that Bacula is going to have to stop relying so heavily on the
longevity of a TCP connection. Particularly for wireless networks,
device makers are increasingly choosing to ignore TCP/IP standards
in favor of power conservation.
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