Kern: I no very little about programming, but here’s the documentation for creating and releasing a power assertion on OS X. There is a call “IOPMAssertionCreate” which is available in 10.5, then deprecated in 10.6. Seems it was replaced with “IOPMAssertionCreateWithDescription” which came in 10.7.
https://developer.apple.com/library/mac/documentation/IOKit/Reference/IOPMLib_header_reference/Reference/reference.html#//apple_ref/doc/uid/TP40012430 I don’t know if that will help any or not. It would be pretty awesome to see in Bacula. Love that Windows will be getting that feature built in! Cheers! -Joe > Hello, > > The next Windows version to be released by Bacula Systems roughly in > June -- it will > be version 8.0 tells the Windows OS not to suspend the SD during a job. > > For OSX, I don't know if an OS API exists to do this -- on Linux, it > doesn't seem > to have one, which means that it is not so simple. If anyone has some > simple > OS API call for Linux or Mac OSX that will do this, please let me know. > > Best regards, > Kern > > On 01/27/2014 04:50 PM, Josh Fisher wrote: >> On 1/21/2014 6:25 PM, Joe Rhodes wrote: >>> Sorry, turns out there was an error in my previous suggestion and >>> ?caffeinate? was not actually started on the client. Here?s an updated >>> (and tested) line that does keep a 10.8 or later mac awake for 3600 seconds: >>> >>> Client Run Before Job = "bash -c \"/usr/bin/caffeinate -i -t 3600 &> >>> /dev/null < /dev/null &\"" >>> >>> >>> Turns out, getting a command into the background using the ?Client Run >>> Before Job? was more tricky than I realized. This command does the trick. >>> You?ll have to adjust the time (3600) to suit your needs. (I?ve got one >>> client that takes 4 hours to do a full backup.) >>> >>> It also does not fail the job if the ?caffeinate? command cannot be found >>> (10.7 or earlier clients). So it should be safe to use that command for >>> any OS X client. >>> >>> >>> Josh Fisher asked: >>> >>>> I take there simply is no way to prevent sleep on 10.7 and earlier? >>> With 10.7 and earlier, things were actually simpler. You just set the >>> sleep timer in System Preferences (or using pmset from the command line) >>> and the Mac would stay awake for whatever you had it set for, even from a >>> WOL packet. I?d typically set it for 2 hours on most machines. I only >>> started to get lots of failed jobs with 10.8 and later. Thats? where Apple >>> got a lot more aggressive about power management. >> I see. With 10.7 and earlier there is no way to "temporarily" adjust the >> sleep timer. If a permanent long sleep timer is not desired, then it >> would require the RunBefore script to set the sleep timer with pmset and >> a RunAfter job to set it back to normal following the backup. My Mac >> clients are in and out of the office seemingly at random. It is not >> uncommon for the users to leave in the middle of a backup. Up grading to >> 10.8 and using caffeinate seems to be my best option, else they will be >> left with a long sleep timer while traveling should they leave in the >> middle of a backup. It is a real pain trying to backup these "road >> warrior" clients. >> >>>> You wouldn't happen to know how to enable WoWLAN on a Mac would you? >>> Again, easily set in System Preferences or using pmset from the command >>> line. If you?ve got a lot of Macs, Apple Remote Desktop is your friend >>> here. (?Send Unix Command? to the whole fleet) >> Thanks, Joe. >> >>> Cheers! >>> -Joe Rhodes >>> >>> >>>> For those that are backing up OS X clients, you may have noticed that 10.8 >>>> Mountain Lion and later is much more militant about having machines sleep. >>>> Even if you issue a WOL packet to start a backup, they still fall back >>>> asleep pretty quickly unless there?s someone actually using the mouse and >>>> keyboard. It doesn?t really matter what you have the sleep timer set to. >>>> >>>> Apple?s strategy seems to be that programs that need to run must issue a >>>> ?power assertion? to the system, indicating that the system must stay >>>> awake for them complete their task. Fortunately, it?s easy enough to >>>> issue one of these manually using the command line. >>>> >>>> In my job definition (in the Bacula director configuration) I?ve added >>>> this line to my Mac clients: >>>> >>>> Client Run Before Job = "/usr/bin/screen -d -m /usr/bin/caffeinate -i -t >>>> 3600; sleep 0;? >>>> >>>> The first part, using the ?screen? command, puts the command in the >>>> background. The ?caffeinate? command is new for 10.8 and later, and will >>>> keep the system awake for 3600 seconds. (Edit to suit your needs.) >>>> >>>> If you?re backing up 10.7 or earlier systems, they won?t have the >>>> caffeinate command, so trying to issue it will fail and thus your backup >>>> would fail. That?s why there?s the ?sleep 0? part at the end. It ensures >>>> you?ll always exit this command with a success (0). >>>> >>>> Hopefully this will help someone else that gets stuck when a Mac backup >>>> starts but then fails, usually taking about 2 hours before the director >>>> will give up and move on. >>>> >>>> Windows 7 seems to have a similar issue. I was able to solve that by >>>> editing a registry value as below: >>>> >>>> >>>> [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Power\PowerSettings\238C9FA8-0AAD-41ED-83F4-97BE242C8F20\7bc4a2f9-d8fc-4469-b07b-33eb785aaca0\DefaultPowerSchemeValues\381b4222-f694-41f0-9685-ff5bb260df2e] >>>> "AcSettingIndex"=dword:00000e10 >>>> >>>> [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Power\PowerSettings\238C9FA8-0AAD-41ED-83F4-97BE242C8F20\7bc4a2f9-d8fc-4469-b07b-33eb785aaca0\DefaultPowerSchemeValues\8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c] >>>> "AcSettingIndex"=dword:00000e10 >>>> >>>> [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Power\PowerSettings\238C9FA8-0AAD-41ED-83F4-97BE242C8F20\7bc4a2f9-d8fc-4469-b07b-33eb785aaca0\DefaultPowerSchemeValues\a1841308-3541-4fab-bc81-f71556f20b4a] >>>> "AcSettingIndex"=dword:00000e10 >>>> >>>> Cheers! >>>> -Joe Rhodes ------------------------------------------------------------------------------ WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
