Solaris Booting / SUN Hardware
by Yogesh Raheja · Published September 11, 2012 · Last modified July 2, 2015
I came across one unique parameter which I would like to share on our gurkulindia, specially for small business organisations where we dont have seperate power backups for DC. Has anyone noticed while working on Solaris boxes if you will power down (init 5 or poweroff...
System Controller battery (BATTERY at SC/BAT/V_BAT has exceeded low warning) failure in T-series servers. Many a times you will get a hardware error in /var/adm/messages (or at ALOM/LOM prompt, console messages) for SC battery failure, In this post I will explain the battery replacement procedure along...
Blog for Unix Admin / Network Design / Solaris Networking / Solaris Performance Monitoring
by Ramdev · Published August 24, 2012 · Last modified July 23, 2016
Our Unixadmin, John from xyz company, recently upgraded one of his server’s network interface card from the old one with 100MB speed to a new one with 10Gig speed , and the reason is to improve the speed for the backup of the server. After the NIC Upgrade john found that the server network...
Beginners Lessons / Network Design / Solaris Beginners Guides / Unix Beginners / Unix Experts
by Ramdev · Published July 31, 2012 · Last modified August 5, 2016
Let us assume that our system administrator Jack is supporting for a server environment in which a small set of servers are located in DMZ (Demilitarized zone ) network . In order to connect any DMZ server Jack has to ssh from his machine (windows PC/Unix...
Beginners Lessons / Linux Beginners Guides / Linux Networking / Network Design / Solaris Beginners Guides / Solaris Networking / Unix Beginners / Unix Experts
by Ramdev · Published July 28, 2012 · Last modified July 2, 2015
Virtual LANs or VLANs are virtual separations within a switch that provide distinct logical LANs that each behave if there were configured on a separate physical switch. Some Important points about VLANS. All the servers connected with in a VLAN will have same broadcasting domain, and...
Blog for Unix Admin / Linux LVM / Storage Migrations / Unix Experts / Unix Intermediate / Veritas Administration for unixadmin / VxVM Learning / VxVM Migrations
by Ramdev · Published July 4, 2012 · Last modified August 5, 2016
We all know that storage is key requirement for any server environment and the requirement for storage is always dynamic in nature. When we talk about the cost, providing highly redundant storage to each server is most expensive task for any organization and no company...
Deployment and understanding of LDOMS (Logical Domains): Ldom technology allows us to allocate a system’s various resources such as memory, CPUs and devices (I/O,Networl interfaces etc) into logical groupings and create multiple, discrete systems each having their own operating system, resources, and identity within a single...
Blog for Unix Admin / Solaris Admin / Solaris NIS
by Ramdev · Published July 1, 2012 · Last modified July 2, 2015
Below procedure can be used to add a new NIS user when the passwd file is not in the /etc directory Steps to Follow The example below demonstrates how to add a user for NIS maps when the passwd file is not in the /etc directory....
Blog for Unix Admin / Solaris Admin / SUN Hardware
by Ramdev · Published June 29, 2012 · Last modified August 20, 2014
The X4000 Family implements the ILOM – Integrated Lights Out Manager. This is a combination of dedicated hardware and supporting software. The Sun Fire X64 family of servers implement a technology called ILOM – Integrated Lights Out Manager where available. This is a combination of dedicated hardware...
Blog for Unix Admin / Linux Admin / Linux Networking / Linux Troubleshooting
by Ramdev · Published June 27, 2012 · Last modified July 2, 2015
Network connection problems include slow connections, as well as complete loss of connectivity. Factors that may cause slow connectivity include incorrectly configured domain name system (DNS) settings, inefficiently configured routing tables, inferior cabling, overloaded servers, and network congestion. The same set of factors, as well as...
