Veritas volume manager is robust volume manager software and mostly used on Oracle Solaris, HP-UX and Linux Operating systems. In some cases, after the host reboot, you might get an error that “Disk group has no valid configuration copies” when you try to import the existing Veritas disk group. This error common in SRDF environment […]
Solaris
Meltdown and Spectre Vulnerabilities – Big Threats
Meltdown and Spectre Vulnerabilities have made 80% of servers as Vulnerable in overnight, thanks to Google Project Zero team and other security researchers who have brought such a worst vulnerabilities to the world (At least now). Meltdown vulnerability basically melts security boundaries which are normally enforced by the hardware (CPU). Spectre name is based on the root cause, “speculative […]
Veeam Extends Data Protection For AIX & Solaris
Veeam is known for VMware vSphere and Microsoft Hyper-V’s data protection solution. Veeam is a market leader in X86 virtualization world but now they would like to grab the opportunity in another enterprise world where the system runs on RISC chips. Majority of enterprise data protection solution for RISC systems are offered by Veritas Netbackup and […]
How to convert controller disk naming to SSD on Solaris ?
Have you ever been analysed the SAR(System activity reporter) reports on Solaris server for the disk performance issues ? If you would have done that , you might noticed that all the disks & LUN’s will be shown as “ssdXXX” names instead of cXtXdXs2. If you run “iostat” command without “n” option, you can see that […]
Solaris – Memory & Swap Usage Script
How to find the exact memory and swap usage of Solaris server? Solaris uses the memory as /tmp and swap will be calculated along with physical memory. We need to use the right commands to figure out the utilization of both. “top” is one if the best monitoring tool but it’s not inbuilt in Solaris 10. I have created […]
How to generate crash-dump in Solaris ?
Crashdump is memory dump of the system during the crash/panic. This dump file will provide you the exact status of system when the system panic or crashed. So we can determine root cause for crash by analyzing this file.If you are not expert to analyze this ,you can raise the support case with oracle for analyzing it. Dumpadm manages the following: […]