Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base


Understanding Network VLANs

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...


SRDF – Symmetrix remote data facility

    Introduction: Symmetrix Remote Data Facility (SRDF) family of software is the industry’s most powerful suite of remote storage replication solutions for disaster recovery and business continuity designed by EMC. SRDF transparently remotely mirrors production or primary (source) site data to a secondary (target) site....


Solaris SVM : Disk replacement for Systems With Internal FCAL Drives Under SVM (V280R, V480, V490, V880, V890):

Beginning with Solaris 9 Operating System (OS), Solaris Volume Manager (SVM) software uses a new feature called Device-ID (or DevID), which identifies each disk not only by it’s c#t#d# name, but also by a unique ID generated by the disk’s World Wide Number (WWN), or serial...

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