Abstract: The present disclosure relates to an air cleaner for moving particles from an air stream. The air cleaner includes a housing defining a separation chamber at which at least some of the particles are removed from the air stream. The air cleaner includes an inlet passage for allowing the air stream to the separation chamber, an outlet passage for allowing the air stream to exit the separation chamber, and a plurality of vanes for causing the air stream to swirl as the air stream flows through the inlet passage and enters the separation chamber. The housing includes a side wall structure defining at least one discharge opening through which particles are discharged as the air stream swirls within the separation chamber.

Abstract: Disclosed are a method, a storage management system, an article of manufacture comprising a computer readable medium, and a computer program product for saving a recovery plan file for a storage management server. The storage management system has a plurality of storage management servers at sites remote from one another coupled by a server-to-server infrastructure. A recovery plan file is saved for one of the storage management servers at one of the sites by establishing the server as a source for its recovery plan file. Another storage management server at a site remote from the source server site is established as a target for the recovery plan file. The source server transmits the source recovery plan file from the source server to the target server at the remote site over the server-to-server infrastructure. The source recovery plan file is managed at the target server according to defined criteria, for placement, backup, migration and expiration under the control of the source server.