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Category Archives: Operating Systems
How 2 Know OS Version on alt_inst_rootvg online
There is a helpful command to check the OS Release on the Alternative Disk in AIX without booting from it or wakeup /usr/lpp/bosinst/blvset -d /dev/hdisk0 -g level
List ALL ASM Disks with header ( AIX )
Hello ALL,, Below is script Tested on AIX Environments to List ALL ASM Disks ( Oracle ASM ) with SN , Header of DIsk , Major and Minor ,,
AIX Duplicate Node ID
This small article describes how to change the ct_node_id in case two LPARs have the same. 1. Duplicate Node ID after LPAR Cloning When you clone an LPAR by splitting up a copy of the rootvg of an existing LPAR … Continue reading
Detect SAN Switch from AIX Side
Sometimes AIX Admin need to be sure that the System is connected to different SAN Switch for more redundancy and stability. Follow below steps to check SAN Switches from AIX Side: # lsdev |grep fc fcs0 Available 24-T1 Virtual Fibre … Continue reading
Recursively replacing a string in all files in a directory
You can use the following command to change Specific string on all files under specific directory: find /u01/directory -type f | xargs perl -pi~ -e ‘s/oldtext/newtext/g;’ Tested on Linux & AIX Ref: https://blogs.oracle.com/rammenon/recursively-replacing-a-string-in-all-files-in-a-directory-linux
Solaris Quick Start
You can download the following PDF which you can use it for a quick start on Solaris: solaris-quicksheet the PDF file taking about the following outlines:
Shell Script Quick Sheet
The following link containing a quick sheet to start on Shell Script: shell-quicksheet The Sheet has the following outline: Variables Relational operators Pattern matching Functions Shell math Test conditions Flow control Sample snippets Special variables Conditional commands Trapping signals Output … Continue reading
Change default values on ODM for Fibre
Hello Everybody … Sometimes for performance recommendations or redundancy solutions, you will need to change some parameters on fibre card, like fc_err_recov & dyntrk TEST_SERVER#lsattr -El fscsi0 attach none How this adapter is CONNECTED False dyntrk yes Dynamic Tracking of … Continue reading
Script to list disks Info
Hello Everybody, The following lines are a for loop script to display disks info @ AIX System (Disk Name, Disk Unique ID, Disk Size in MB) and of course you can customize the data by add more columns: