System Logs are important things when you want to track usage or troubleshoot an application. Unfortunately the more information that gets logged, the more disk space the log uses. Over time it can really add up. A log left unrotated not only cause the “out of...
When we trying to use a particular RPC program, below may indicate that rpcbind is not running or the program is not registered with rpcbind. Error “RPC: Program not registered”
Solaris Disk Management / Solaris Troubleshooting / Unix Intermediate
by Ramdev · Published October 9, 2021
While handling storage related issues, it is important to Unix Admin to take the decision about disk drive replacement. The interpretation and understanding of the cause of SCSI message blocks is one important part that influences the drive replacement decision. This article will help you...
Unix Experts / VCS How To / Veritas Cluster Services / VxVM Learning
by Ramdev · Published October 8, 2021
vxfenadm: The vxfenadm utility enables the vxfen driver to manage SCSI-3 registrations and reservations on disks for purposes of I/O fencing. In the event of a split-brain condition, I/O fencing allows only a system with a valid registration to write to a disk. Thus, I/O...
Device-mapper is a very important component of Linux 2.6 kernel. It is used for many critical storage related applications, such as LVM2, Linux native multipath tool device-mapper-multipath, device-mapper software RAID, etc. A solid understanding of device-mapper helps system administrators to investigate various kinds of issues with...
After delivering our first Free email crash course “Linux Admin Interview Preparation” to more than 1000 working professionals ( you can still signup for this course here http://tinyurl.com/za28xdz), now we are back with another free email crash course for unix and linux professionals, that will take...
Blog for Unix Admin / Solaris Admin / Solaris How-to / SUN Hardware
by Ramdev · Published October 5, 2021
Below Procedure describes how to add a new two-board domain, using Sun direct attach boot storage to an existing Sun Enterprise 10000 platform. You will use the System Service Process (SSP) as a boot server for the domain’s new operating system. The SSP is a SPARC...
Create a Sample file to Understand how RegEx commands works in Linux My original text Another line with the number 3 Search for the word “me” I contain 5and6 Skip me and me 0 + 1 = 1 Above this line is a math equation…duh! 1....
Puppet Hardware Requirements Puppet client is very lightweight and can be installed on most systems. Puppet server, on the other hand, is heavyweight and has restrictions on the hardware on which it can run effectively. The minimum requirement as of this writing is a dual-core processor...
Unix Intermediate / Veritas Administration for unixadmin / VxVM - How to / VxVM Learning
by Ramdev · Published October 2, 2021
VxVM uses several Default Values during volume management tasks. To display all defaults: # vxdefault list
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