While trying to start database While trying to start database You might be using Automatic Memory Management (AMM). AMM uses two initialization parameters: The shared memory file system should have enough space to accommodate the MEMORY_TARGET and MEMORY_MAX_TARGET values. To verify: In UNIX/Linux, you will have to set the shared memory file system accordingly. Verify: Set: Hope it helped … Read more
The nohup command runs the command specified by the Command parameter and any related Arg parameters, ignoring all hang up signals (SIGHUP) or modifies the process specified with the -p option to ignore all SIGHUP signals. SIGHUP is a signal that is sent to a process when the controlling terminal of the process is closed. … Read more
SAR is used to collect, report or save system activity. SAR stands for System Activity Report. SAR is used to check Memory, CPU, system load, network, swap space utilization, etc. It uses a proc file system to collect the information. The sar command writes to standard output the contents of selected cumulative activity counters in … Read more
The top utility is a commonly used tool for displaying system-performance information. It dynamically shows administrators which processes are consuming processor and memory resources. Top is incredibly handy. The top (table of processes) command shows a real-time view of running processes in Linux and displays kernel-managed tasks. The command also provides a system information summary that shows … Read more
A Linux distribution is a collection of (usually open source) software on top of a Linux kernel. A distribution (or short, distro) can bundle server software, system management tools, documentation and many desktop applications in a central secure software repository. A distro aims to provide a common look and feel, secure and easy software management … Read more
Automate RMAN Backup using Shell Script In a real environment, you will not manually trigger all the Oracle database backups. You need an automated mechanism to trigger RMAN backups. Create directory On your database server, create a directory to hold RMAN backups and all related files. All the RMAN backups, logs and backup scripts are … Read more
RAID stands for Redundant Array of Inexpensive Disks which was later interpreted to Redundant Array of Independent Disks. This technology is now used in almost all the IT organizations looking for data redundancy and better performance. It combines multiple available disks into 1 or more logical drive and gives you the ability to survive one … Read more
Backup of the Oracle home can be taken using any preferred method. You can use any tool such as zip, tar, and cpio to compress the Oracle home. It is highly recommended to take a backup of the Oracle_Home binaries and Central Inventory prior to applying patchsets or patches. It should also be done as … Read more
To create a shell script to run export/import utilities. Running the script If you save the script as exp_comp.sh, type the following command at the Unix prompt to run it: Note: Edit the above script to use it for your specific exports or imports (like full, schema, table, TTS). In case of traditional export/imp (exp/imp), … Read more
There are many middleware tools which require latest version of java jdk to be installed on your Linux machine. You can easily find and check the latest version of jdk using below commands. How to find PATH where JDK is installed Checking Java Version in Linux