NEX-13374 NDMP should be able to backup unmounted ZFS filesystems
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Evan Layton <evan.layton@nexenta.com>
NEX-894 Default location of NDMP log file should be under /var/log

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                                 and hard limits, a warning message is issued to
                                 the DMA. The token sequence number can never
                                 exceed the hard-limit value.
  
  
+        autosync-support
+                                When set yes the most recent AutoSync snapshot,
+                                if found, will be used to back up. If no, the
+                                file system will be checkpointed and backed up.
+                                Acceptable values are yes or no.  The default
+                                is no.
+ 
+ 
+        hpr-support
+                                When set yes the most recent HPR snapshot, if
+                                found, will be used to back up. If this option
+                                is set to yes, it with override the setting for
+                                AutoSync. If no, the file system will be
+                                checkpointed and backed up.  Acceptable values
+                                are yes or no.  The default is yes.
+ 
+ 
         version
                                 Set the maximum active NDMP protocol version.
                                 Valid values are currently 2, 3, and 4. The
                                 default is 4.