HP-UX 1. Rescan the devices: ioscan -fnC <disk|tape> 2. Generate device files: insf -e 3. Verify the new devices: ioscan -funC <disk|tape> AIX 1. Rescan the devices ): cfgmgr -vl fcsx Where x is FC adapter number 2. Verify the new devices: lsdev -Cc <disk|tape> Linux The rescan in Linux is HBA-specific. For QLogic: echo […]
How to Rescan new LUN’s added in Linux, HP-UX, Aix, Solaris ? Read More »
What is X Window ? The X Window System, commonly referred to as X, is a network-based graphical window system. The X Window System uses a client-server architecture. It enables multiple programs to share and access a common set of hardware. This hardware includes both input and display devices such as mouse, keyboards, video adapters,
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This chapter discusses tuning the operating system (OS) for optimum performance. It discusses the following topics: Server Scaling Solaris 10 Platform-Specific Tuning Information Tuning for the Solaris OS Tuning for Solaris on x86 Tuning for Linux platforms Tuning UltraSPARC CMT-Based Systems Server Scaling This section provides recommendations for optimal performance scaling server for the following
Tuning the Unix Operating System and Platform Read More »
This chapter describes how to tune Oracle Database. It contains the following sections: Importance of Tuning Operating System Tools Tuning Memory Management Tuning Disk I/O Monitoring Disk Performance System Global Area Tuning the Operating System Buffer Cache 1.1 Importance of Tuning Oracle Database is a highly optimizable software product. Frequent tuning optimizes system performance and
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Memory and Paging Disk I/O Issues CPU Scheduling and Process Priorities Oracle Real Application Clusters Information Setting the AIXTHREAD_SCOPE Environment Variable Memory and Paging Memory contention occurs when processes require more memory than is available. To cope with the shortage, the system pages programs and data between memory and disks. Controlling Buffer-Cache Paging Activity Excessive
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select username,created,account_status from dba_users where username like ‘—–%’ order by created
Oracle: HOW TO SELECT USERNAME AND CHECK THERE STATUS Read More »
create user [username] identified by [password] default tablespace [tablespace name which has free space acc to statement 8] quota unlimited on [same tablespace name];
Oracle: HOW TO CREATE USER AND GIVE GRANTS Read More »
alter system set control_files=’path.ctl’,’path.ctl’ scope=spfile;
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desc dba_temp_files or desc v$tempfile;
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select tablespace_name,sum(bytes/1024/1024/1024) from dba_free_space group by tablespace_name
Oracle: HOW TO CHECK THE SPACE IN TABLESPACE Read More »