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Oracle 视图 V$ASM_ESTIMATE 官方解释，作用，如何使用详细说明

本站中文解释

Oracle视图V$ASM_ESTIMATE用于查询ASM实例的资源使用情况。该视图综合显示了ASM中耗费的存储空间与消耗的I/O资源，从而可以更好地估算出ASM性能指标。用户可以根据这些数据来调整相关资源分配，以提高系统的存取性能。

使用该视图需要使用SQL语句，其格式如下：

SELECT *FROM v_$asm_estimate;

官方英文解释

V$ASM_ESTIMATE displays an estimate of the work involved in execution plans for Oracle Automatic Storage Management (Oracle ASM) disk group rebalance and resync operations.

Column Datatype Description

GROUP_NUMBER

NUMBER

Oracle ASM disk group number

STATEMENT_ID

VARCHAR2(30)

Value of the optional STATEMENT_ID parameter specified in the EXPLAIN WORK statement

TIMESTAMP

DATE

Date and time when the EXPLAIN WORK statement was issued

EST_WORK

NUMBER

Estimated number of Allocation Units that have to be moved by the operation

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data

For this view, the value is always 0.

See Also:

Oracle Automatic Storage
Management Administrator’s Guide for additional information about using views to display Oracle ASM information


数据运维技术 » Oracle 视图 V$ASM_ESTIMATE 官方解释，作用，如何使用详细说明
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