MIB module to manage Storage Media Encryption (SME) service.
SME is an encryption service provided by an encryption node
residing on a linecard in a storage device. It receives
clear-text data from host, encrypts it, then sends it to be
written to tape or disk. It does the reverse in the opposite
direction so the service is completely transparent to the
host. The purpose of this service is to enhance data security
in case the tape or disk is lost or stolen.
As with any important service, user requires that it provides
some level of fault tolerant in a graceful manner.
SME provides this by allowing encryption nodes to be grouped
into cluster. Nodes in the same cluster immediately pick up
the work of a failed node so user does not see service
disruption.