Enabling a policy for cloud data sharing export service

This topic describes how to create a policy for export, a service provided by the IBM Storage Scale cloud services, cloud data sharing.

After you create a cloud storage account, you will want to create a policy for exporting data to cloud storage. You can run this policy manually as needed or set it up to run periodically – a cron job is frequently employed for this purpose. This policy is meant to run weekly and exports files greater than one day old and less than eight days old.
Note: Do not set this down to modified age of 0 if you want to run it in a cron job -- as it will only pick up a partial list of files for day 0 and you may end up with get gaps or duplicates over your week-to-week policy runs.
A sample policy is provided as follows: 

define(
modified_age,
(DAYS(CURRENT_TIMESTAMP) - DAYS(MODIFICATION_TIME))
)
RULE EXTERNAL LIST 'export' EXEC '/opt/ibm/MCStore/bin/mcstore' OPTS '-e'
RULE 'files-to-export'
LIST 'export'
WHERE modified_age > 1 AND modified_age <= 8
How this could be applied using a cron job:
  1. Open a cron job editor by issuing this command:
    crontab -e
  2. Add weekly export cron job by specifying this command: 
    @weekly mmapplypolicy {Device|Directory} -P PolicyFile
  3. Specify a command to export the journal to cloud storage here, if required.
  4. Specify the asynchronous notification of new files in the cloud here (pick your favorite notification tool).
  5. Save the file.