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RAC Useful Views And Tables

RAC Useful Views And Tables

GCS and Cache Fusion Diagnostics

v$cache contains information about every cached block in the buffer cache
v$cache_transfer contains information from the block headers in SGA that have been pinged at least once
v$instance_cache_transfer contains information about the transfer of cache blocks through the interconnect
v$cr_block_server contains statistics about CR block transfer across the instances
v$current_block_server contains statistics about current block transfer across the instances
v$gc_element contains one-to-one information for each global cache resource used by the buffer cache

GES diagnostics

v$lock contains information about locks held within a database and outstanding requests for locks and latches
v$ges_blocking_enqueue contains information about locks that are being blocked or blocking others and locks that are known to the lock manager
v$enqueue_statistics contains details about enqueue statistics in the instance
v$resource_limits display enqueue statistics
v$locked_object contains information about DML locks acquired by different transactions in databases with their mode held
v$ges_statistics contains miscellaneous statistics for GES
v$ges_enqueue contains information about all locks known to the lock manager
v$ges_convert_local contains information about all local GES operations
v$ges_convert_remote contains information about all remote GES operations
v$ges_resource contains information about all resources known to the lock manager
v$ges_misc contains information about messaging traffic information
v$ges_traffic_controller contains information about the message ticket usage

Dynamic Resource Remastering

v$hvmaster_info contains information about current and previous master instances of GES resources in relation to hash value ID of resource
v$gcshvmaster_info the same as above but globally
v$gcspfmaster_info conatins information about current and previous masters about GCS resources belonging to files mapped to a particular master, including the number of times the resource has remastered

Cluster Interconnect

v$cluster_interconnects contains information about interconnects that are being used for cluster communication
v$configured_interconnects same as above but also contains interconnects that AC is aware off that are not being used

Miscellanous

v$service services running on an instance
x$kjmsdp display LMS daemon statistics
x$kjmddp display LMD daemon statistics

 

 

 

About Syed Saad Ali

With 13 years of experience as a certified and skilled Oracle Database Administrator, I possess the expertise to handle various levels of database maintenance tasks and proficiently perform Oracle updates. Throughout my career, I have honed my analytical abilities, enabling me to swiftly diagnose and resolve issues as they arise. I excel in planning and executing special projects within time-sensitive environments, showcasing exceptional organizational and time management skills. My extensive knowledge encompasses directing, coordinating, and exercising authoritative control over all aspects of planning, organization, and successful project completions. Additionally, I have a strong aptitude for resolving customer relations matters by prioritizing understanding and effective communication. I am adept at interacting with customers, vendors, and management, ensuring seamless communication and fostering positive relationships.

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