[mythtv-commits] Ticket #5746: With multiple disk of different sizes, place new recording on partition which will have the lowest priority files deleted

[MythTV]

#5746: With multiple disk of different sizes, place new recording on partition
which will have the lowest priority files deleted
-------------------------------------+--------------------------------------
 Reporter:  John.r.fulton at gmail.com  |        Owner:  cpinkham  
     Type:  patch                    |       Status:  closed    
 Priority:  minor                    |    Milestone:  unknown   
Component:  mythtv                   |      Version:  0.21-fixes
 Severity:  low                      |   Resolution:  fixed     
  Mlocked:  0                        |  
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Changes (by cpinkham):

  * status:  assigned => closed
  * resolution:  => fixed


Comment:

 (In [21225]) Add some more intelligence to the Storage Scheduler.

 When using the new "Balance Free Space" method, the Storage Scheduler
 will now perform an intermediate step if it can not find a directory
 with enough free space to hold the recording.  Previously, the scheduler
 would go through the directory list again and put the recording on the
 first acceptable directory in the list and hope that something could be
 expired from that directory.  The new middle pass will go through the
 directory list again looking at what can be expired from each directory to
 find out the best place to put the recording based on what recording(s)
 may have to be expired to make room for the new recording.

 One warning....  The corner case of full drives and multiple recordings
 starting at once will still not be handled effectly by this 2nd pass.  The
 2nd recording will probably be put on the same filesystem as the first
 since "free space" is the deciding factor.  It may be that the "free
 space"-only method may work better to use a fuzzy comparison and then
 take weight into account which would help balance out multiple recordings
 in this scenario.

 This patch also does 2 things regarding the default value of the
 StorageScheduler setting:

 1) The default method on the setup screen is now 'Balanced Free Space'.
 2) A DB upgrade inserts a setting into the database to set the method
    to 'Combination' so that users upgrading from previous versions will
    see the same scheduling logic they have been seeing.  Users can
    change the value in mythtv-setup anytime and restart the master
    backend for the new value to take effect.

 Closes #5746 using modified patch originally by John R Fulton.

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Ticket URL: <http://svn.mythtv.org/trac/ticket/5746#comment:6>
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