12c: Testing audit features for Data Pump (Export & Import) and RMAN jobs

Comments

Post a Comment

Popular posts from this blog

Oracle DataGuard – How to resize Redo Log and Standby Redo Log

Oracle DataGuard – How to resize Redo Log and Standby Redo Log set linesize 200 col dest_name for a30 select DEST_NAME,STATUS,PROTECTION_MODE,ARCHIVED_SEQ#,APPLIED_SEQ# from v$archive_dest_status; On Standby server - make file management parameter to manual if not: show parameter standby; alter system set standby_file_management=manual; ================== +     On Primary             + ==================  SQL> select group#,thread#,status from v$log; col member for a60 set linesize 200 select member,group#,status from v$logfile; SQL> select group#,thread#,status from v$log;     GROUP#    THREAD# STATUS ---------- ---------- ----------------          1          1 ACTIVE          2       ...
Read more

Exadata - Smart Scan Testing

Image
Exadata - SMART SCAN testing -------------------------------------------- Samrt scan works with cell offloading which relate to offloaded the sql processing from the database layer to the cell (storage) layer. Smart scan is the access mechanism to offload data from storage layer. For example passing only required data blocks after applying predicate filters at the cell layer instead of sending every possible blocks from cell server to database server.                           Figure 1: Traditional Database Storage I/O and SQL Processing Model   Process Steps: ------------------- 1.    The client issues a SELECT statement . 2.    The database kernel maps this request to the database files and extents which contain the table data. 3.    The database kernel issues the I/Os to read all the table bloc...
Read more

12c ASM: Moving the Existing Cluster Mode to Flex Cluster

Image
In Oracle Flex ASM architecture, Oracle ASM instances can run only a small number of cluster nodes. These ASM instances are connected by all the database instances on the cluster to provide storage access for all these database instances. When an ASM instance fails, the database instances reconnect to other ASM instances for the failed ASM instance. This features supports the platform for variety of application which includes RAC with large number of nodes. There is a new type of network, ASM network with Flex ASM which is used for communication between ASM and its clients. ASM network is accessible from all nodes. In oracle Flex Cluster, the nodes are arranged in two ways i.e. Hub Node and Leaf Node. Hub Nodes : tightly connected with each other like standard configuration and have direct access to the shared storage. Leaf nodes: Leaf nodes can be added as many as more and can host different applications other than hub nodes. This type of nodes doesn't require direct ac...
Read more