Cache disk policy file

Format of ".srm-default-policy" file

<policy> is the root element of policy file. It contain two components <life-time-in-days> and <space-type>. It is shown below.

     <policy>
         <life-time-in-days>a positive integer</life-time-in-days>
         <space-type>string "permanent" or "volatie"</space-type>
     </policy>

All these elements have no attribute. <life-time-in-days> specify number of days file will be pinned (keeping in disk). <spcae-type> define the type of space, which must be permanent or volatile. The files will be backed up only if it is in the permenent space.

Default .srm-default-policy file in /cache/<project> directory (files in this directory are permanent and will be backup to the silo after 7 days).

     <policy>
         <life-time-in-days>0</life-time-in-days>
         <space-type>permanent</space-type>
     </policy>

Default .srm-default-policy file in /cache/users directory (files in this directory are not permanent and will be kept on disk for at least 60 days)

     <policy>
         <life-time-in-days>60</life-time-in-days>
         <space-type>volatile</space-type>
     </policy>

This .srm-default-policy file can be used for scratch directory (files in this directory are not permanent and will be deleted when space is needed)

     <policy>
         <life-time-in-days>0</life-time-in-days>
         <space-type>volatile</space-type>
     </policy>