Access Server’s OS Console from the LOM service Processor: Server Models : SunFire V100/V120/V1280/E2900 and Netra 1280/1290 You can use below command to navigate between Server OS console and LOM port: connecting to console from LOM prompt: sc/lom>console Returning to LOM from the Server console presss #. ( # followed by a dot) How [...]
Memory bottlenecks are evidenced by two different things happening on the system — paging and swapping. Paging refers to pages of memory being reclaimed by the page daemon when the system starts to get low on free memory. Swapping is more extreme, and refers to entire processes being swapped out. To determine if [...]
This post is to highlight some of the steps needed to diagnose if an issue is in fact a disk performance issue or not. And if it is, what data will be collected to help diagnose the issue. Please note that performance in general is not an easy issue to tackle. This is because it can [...]
Configuring SAN storage is usual task of system administration in Enterprise network environment. And Of course there is lot of engineering activity involved in certifying a process , that defines the guidelines on what hardware / software matrix should be used for stabled operating environment. In this post , we are assuming that the server is [...]
One of the Sample Issue: Customer frequently sees in /var/adm/messages syslogd: going down on signal 15 which indicates that the system rebooted from a normal shutdown or init 6, yet no reboot has actually occurred and uptime indicates that no reboot occurred. If you stop the syslogd and restart it, it puts a message in [...]
While Troubleshooting Veritas Volume Manager, Understanding volume and plex states is key part to investigate about the current issue related to the Veritas Volumes. In this post, I made little effort to write all the possible Volume and Plex states so that it can be readily useful for others ( including me) for [...]
About Author : My name is Ramkumar Ramadevu ( Ramdev ). I have started writing about enterprise unix system administration since 2009 just for my own knowledge reference, and then later I have made this site available for everyone, for better purpose. ... read more