1、orachk工具主要用途
（1）主动检查您的整个软件在操作系统、CRS、数据库、高可用等层面中的严重问题，以便于IT部门整改，提升系统的稳定性
（2）对于您系统中存在的风险提供简单化和合理化的诊断和分析建议。
（3）对系统中存在的健康风险提供汇总信息，而且可以向下钻取到特定的问题和相应的解决方式
（4）对检查结果进行量化评分（100分制），内容很的全面，通过得分直观推断健康程度
2、执行注意要点
（1）orachk不支持在root用户下执行，须要在oracle或grid用户下执行
（2）假设检查RAC环境的健康，须要输入其他节点的rootpassword，假设各节点rootpassword同样，则仅仅需输入一次就可以
3、检查输出信息分级
|
序号 |
分级 |
意义 |
|
1 |
FAIL |
严重的不合格的问题 |
|
2 |
WARNING |
警告问题 |
|
3 |
ERROR |
错误问题 |
|
4 |
INFO |
參考信息 |
4、orachk下载
metalink文章 1268927.2 中提供下载，当前最新版本号为ORA CHK2.2.5，不分平台，在linux、AIX等平台通用
5、orachk安装
5.1 创建一个orachk专用文件夹
创建一个orachk解压出来的众多文件，以及执行orachk产生的分析报告材料
|
[root@INFA oracle]# mkdir -p /home/oracle/orachk |
5.2、安装orachk
安装orachk非常easy，仅仅须要将orachk-2.2.5.zip解压缩出来就可以
|
[root@INFA oracle]# cp orachk-2.2.5.zip /home/oracle/orachk/ [root@INFA oracle]# cd /home/oracle/orachk [root@INFA orachk]# unzip orachk-2.2.5.zip |
5.3、配置orachk文件夹权限
|
[root@INFA orachk]# chown -R oracle:oinstall /home/oracle/orachk [root@INFA orachk]# chmod -R 777 /home/oracle/orachk |
6、单实例环境执行orachk开展健康检查实例
|
（1）启动orachk检查： [oracle@INFA orachk]$ ./orachk List of running databases 1. infadb 2. None of above Select databases from list for checking best practices. For multiple databases, select 1 for All or comma separated number like 1,2 etc [1-2][1]. |
|
（2）输出过程记录（部分内容）： Checking Status of Oracle Software Stack - Clusterware, ASM, RDBMS . . . . . . . . . . . . . . . ------------------------------------------------------------------------------------------------------- Oracle Stack Status ------------------------------------------------------------------------------------------------------- Host Name CRS Installed ASM HOME RDBMS Installed CRS UP ASM UP RDBMS UP DB Instance Name ------------------------------------------------------------------------------------------------------- infa No No Yes No No Yes infadb ------------------------------------------------------------------------------------------------------- Copying plug-ins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *** Checking Best Practice Recommendations (PASS/WARNING/FAIL) *** Collections and audit checks log file is /home/oracle/orachk/orachk_infa_infadb_080214_023723/log/orachk.log Checking for prompts in /home/oracle/.bash_profile on infa for oracle user... ============================================================= Node name - infa ============================================================= Collecting - Active sessions load balance for infadb database Collecting - Archived Destination Status for infadb database ...... Collecting - Memory Information Collecting - OS Packages Collecting - Operating system release information and kernel version Collecting - Patches for RDBMS Home Collecting - number of semaphore operations per semop system call Data collections completed. Checking best practices on infa. -------------------------------------------------------------------------------------- INFO => user_dump_dest has trace files older than 30 days for infadb INFO => At some times checkpoints are not being completed for infadb WARNING => One or more redo log groups are NOT multiplexed for infadb WARNING => Shell limit soft nproc for DB is NOT configured according to recommendation ...... INFO => Consider investigating changes to the schema objects such as DDLs or new object creation for infadb INFO => Information about 11.2.0.3 support Best Practice checking completed.Checking recommended patches on infa. --------------------------------------------------------------------------------- Collecting patch inventory on ORACLE_HOME /dba/oracle/product/11.2.0/db_1 --------------------------------------------------------------------------------- 1 Recommended RDBMS patches for 112030 from /dba/oracle/product/11.2.0/db_1 on infa --------------------------------------------------------------------------------- Patch# RDBMS ASM type Patch-Description --------------------------------------------------------------------------------- 18031683 no merge DATABASE PATCH SET UPDATE 11.2.0.3.10 (INCLUDES CPUAPR2014) --------------------------------------------------------------------------------- RDBMS homes patches summary report --------------------------------------------------------------------------------- Total patches Applied on RDBMS Applied on ASM ORACLE_HOME --------------------------------------------------------------------------------- 1 0 0 /dba/oracle/product/11.2.0/db_1 --------------------------------------------------------------------------------- Detailed report (html) - /home/oracle/orachk/orachk_infa_infadb_080214_023723/orachk_infa_infadb_080214_023723.html UPLOAD(if required) - /home/oracle/orachk/orachk_infa_infadb_080214_023723.zip |
具体输出结果已经打包成zip文件
7、RAC环境执行orachk开展健康检查
方法与单实例全然一样，不同的一点在于，须要在执行节点，输入远端节点的root密
8、输出结果演示样例（摘取部分内容）
（1）头部概述信息
Cluster Summary
|
（2）database server检查输出部分
Database Server
|
Status |
Type |
Message |
Status On |
Details |
|
Database Check |
There should be no duplicate parameter entries in the database init.ora(spfile) file |
XXdb1:ebiz |
||
|
SQL Check |
Table AUD$[FGA_LOG$] should use Automatic Segment Space Management for ebizsj |
All Databases |
||
|
SQL Check |
Some bigfile tablespaces do not have non-default maxbytes values set |
ebiz |
||
|
...... |
....... |
...... |
...... |
|
|
SQL Check |
Consider increasing the value of the session_cached_cursors database parameter |
ebiz |
||
|
OS Check |
maximum number of processes user limit (ulimit -u) for current user is NOT set to recommended value 16384 or greater |
All Database Servers |
||
|
...... |
...... |
...... |
...... |
...... |
（3）GRIDAND RDBMS Patch部分
GRID and RDBMS patch recommendation Detailed report
Detailed report for "XXdb1"
1 Recommended CRS patches for112030 from /u01/app/11.2.0.3/grid
|
Patch# |
CRS |
ASM |
RDBMS |
RDBMS_HOME |
Patch-Description |
|
18139678 |
not-applied |
n/a |
not-applied |
merge |
GRID INFRASTRUCTURE PATCH SET UPDATE 11.2.0.3.10 (INCLUDES DB PSU 11.2.0.3.10) |
Top
1 Recommended RDBMS patchesfor 112030 from /u01/app/oracle/11.2.0.3/db
|
Patch# |
RDBMS |
ASM |
Type |
Patch-Description |
|
18139678 |
not-applied |
n/a |
merge |
GRID INFRASTRUCTURE PATCH SET UPDATE 11.2.0.3.10 (INCLUDES DB PSU 11.2.0.3.10) |
......
本文作者：黎俊杰（网名：踩点），从事”系统架构、操作系统、存储设备、数据库、中间件、应用程序“六个层面系统性的性能优化工作
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