Which two statements are true about Flex ASM in a Flex Cluster?
B: Oracle Automatic Storage Management Cluster File System (Oracle ACFS) can only be run on the hub nodes, not the leaf nodes. Architecturally
Oracle Flex Cluster comprises of a Hub and Leaf architecture where in only the Hub nodes will only have direct access to Oracle Cluster Registry
(OCR) and Voting Disk (VD).
E: application can access the database via Leaf nodes without ASM instance NOT running on Leaf nodes. The connection to the database is through
Hub making it transparent for the application.
A: The Oracle Flex ASM can be implemented in two ways:
Pure 12c Flex ASM (Same Version)
Both Grid Infrastructure (GI) and Database running on Oracle 12c
Pre Oracle 12c Mixed (Different Versions)
As normal ASM instance will run on each node with Flex configuration to support pre 12c database. The compatibility parameter of ASM disk group
is used to manage the compatibility of between and among database instances. Advantage of this approach is that if an Oracle 12c database instance
loses connectivity with an ASM instance, then the database connections will failover to another ASM instance on a different server. This failover is
achieved by setting the cardinality to all.