-- Tamanho Undo Atual SELECT SUM(a.bytes) "UNDO_SIZE" FROM v$datafile a, v$tablespace b, dba_tablespaces c WHERE c.contents = 'UNDO' AND c.status = 'ONLINE' AND b.name = c.tablespace_name AND a.ts# = b.ts#; -- Blocos de UNDO por Seg. SELECT MAX(undoblks/((end_time-begin_time)*3600*24)) "UNDO_BLOCK_PER_SEC" FROM v$undostat; --Tamanho do Bloco SELECT TO_NUMBER(value) "DB_BLOCK_SIZE [KByte]" FROM v$parameter WHERE name = 'db_block_size'; -- Select calcula UNDO RETENTION SELECT d.undo_size/(1024*1024) "ACTUAL UNDO SIZE [MByte]", SUBSTR(e.value,1,25) "UNDO RETENTION [Sec]", ROUND((d.undo_size / (to_number(f.value) * g.undo_block_per_sec))) "OPTIMAL UNDO RETENTION [Sec]" FROM ( SELECT SUM(a.bytes) undo_size FROM v$datafile a, v$tablespace b, dba_tablespaces c WHERE c.contents = 'UNDO' ...
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ORACLE DATABASE 12C CLUSTERWARE ADMINSTRATION
ResponderExcluirThis Oracle Database 12c: Cluster ware Administration training will explore general cluster concepts and Oracle Cluster ware architecture. Work with expert Oracle University instructors through interactive instruction and hands-on exercises to reinforce your learning. Oracle Cluster ware is the cross platform cluster software required to run the Real Application Clusters (RAC) option for Oracle Database. It provides the basic clustering services at the operating system level that enable Oracle software to run in clustering mode. In earlier versions of Oracle (version 9i and earlier), RAC required a vendor supplied cluster ware like Sun Cluster or Veritas Cluster Server with the exception of Linux and Windows.
Benefits:
Learn how to make applications highly available using Oracle Cluster ware. You'll walk away with the ability to install,configure, manage and troubleshoot both standard and flex clusters. Furthermore, you will have developed the skills toupgrade and patch Cluster ware environments.
To join Online Training session kindly feel free to contact with us
Name - saurabh srivastava
Email - id - saurabh@maxmunus.com
Contact No. - +91 -8553576305
Skype- saurabhmaxmunus
Company Website - http://www.maxmunus.com