Recent Posts

How to reduce the Security risk in Solaris ? – Generic OS Hardening steps

Is your Solaris environment is secure enough ? How can we tighten the system security ? Here we will see some basic  Hardening steps for Solaris OS.Every organization should maintain hardening checklists of each operating systems which they are using it.Before server is bringing to operation/production, hardening check list needs to be verified by support team who supports the server.     …

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Solaris ZFS – Interview Questions

As we know Oracle made ZFS is a default root filesystem from Solaris 11 onwards. This shows their future plans of improving ZFS and making it as worlds best volume manager cum filesystem in near future.Customers would like to have ZFS in their environment  since its a inbuilt volume manager and there is no additional operating cost unlike VXVM. They preferred ZFS data volumes in mid …

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Solaris Zone(Containers) – Interview Questions

Here I would like to share interview questions regarding Solaris zones which will be normally asked for L2 level candidates in Solaris interviews. Now a days virtualization plays very important role in infrastructure market to reduce the data center space,power and utilizing hardware potentially. The virtualization goal is that utilizing the hardware without scarifying the application performance and reducing  the operational cost. We will see some of the interview questions and its answer here.Stay tuned.Q 1.What are …

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How to configure I/O fencing on Veritas cluster ?

I/O fencing is required to protect the data corruption in Shared storage cluster environment. In Normal VCS operation,Veritas cluster nodes will be having heart beats and each system will send ICMP packets to ensure each machines are live and service group status is known.(Picture:1.0).I/O fencing behaves same way on system failure and cluster interconnect failure.It will not take any decision by assuming like something.The I/O fencing …

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How to add ZPOOL-ZFS to Solaris local zones ?

Oracle is marketing Oracle’s ZFS(Zeta Byte filesystem) is the next generation filesystem. If you say next generation filesystem,will it be enhanced to support OS virtualization ? Yes.It is.Unlike VXVM, we can delegate the entire zpool to local zones.So that we can manage the entire zpool from the local zone level without logging in to global zone.It includes creating new ZFS dataset,destroying existing dataset and managing …

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Certifications – VXVM/VCS-Symantec storage foundation

The Symantec Certification Program is a valuable investment in the current market.Since acquisition of veritas, its become very important for system admins who needs to be get certified on their products like veritas volume manager and veritas cluster.By completing these certification,system admins will be experts on Installation,configuration,product administration, day-to-day maintenance, and basic troubleshooting. Symantec recommends to take training prior to …

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Oracle Solaris certifications for system administrator- 2013

Oracle has many certification programs.As a system administrator, you may have doubt that which certification should be suitable  to build technical competence. Here we will see the certification path for Solaris administrators.Oracle Solaris certification consists four parts.  1.Oracle system administration 2.Oracle Solaris cluster 3.Oracle Solaris network administration 4.Oracle Solaris security  Please read the important announcement from oracle regarding the system administrator certification. http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=449 1.Oracle system administration: If you are beginner or intermediate level of administrator …

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SMF-Service Management Facility administration

Service Management facility administration:In the last post we have seen how to list the services using SMF commands and here we will see how to administrate those FMRI(Service) using SMF commands.In Solaris Operating system administration, You should have fair enough knowledge to  start,stop,restart the SMF service.And also you should know how to troubleshoot if the service is not coming to online.In the end of …

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SMF-Service Management facility:Service information

As we all know that from Solaris 10 on-wards legacy method of starting and stopping service has been replaced by SMF (Service management facility) service management. Here we are not going in depth of SMF history and theory.Here we will see how to get the list of SMF service installed in server,how to see the dependencies and dependents services,Service tree map and complete information about the services.And …

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