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


Solaris 10 – How to access SVM root disk from fail safe / Cdrom boot

This procedure explains the steps required to access a root filesystem under SVM, during the situation when the solaris cannot boot in normal way and it require to boot from failsafe or cdrom. In this procedure the device /dev/dsk/c0t0d0s0 is used as our root filesystem slice.....


VCS 6.1 – How to configure and display information about Group and Atomic Broadcast (GAB) ports

The gabport utility displays GAB port information or changes the heartbeat timeout value of a user client process on a GAB port. In normal operation, a GAB client process should heartbeat to GAB at a certain interval. GAB uses this mechanism to monitor the aliveness of...


VCS 6.1 – How to allocate two disk heartbeating resources, one for port a (the GAB control port) and one for port h (the VCS port) using gabdiskhb.

The gabdiskhb utility sets up and maintains the configuration of GAB driver heartbeat disk regions. GAB driver heartbeat disk regions provide channels in addition to the network connections for protection from network failures. These resources describe a 64K region that GAB uses to read and write...


VCS 6.1 – How to check the cluster node Heartbeat connectivity using dlpiping ?

The dlpiping utility exchanges network traffic over a specific DLPI network device to test network connectivity. Each host on the network being tested should run an instance of dlpiping in server mode to reflect packets from the other hosts. An instance of dlpiping in client mode...


Solaris ZFS Command Line – Solaris Admin Reference

The ZFS file system is a new kind of file system that fundamentally changes the way file systems are administered, with the below mentioned features: ZFS Pooled Storage ZFS uses the concept of storage pools to manage physical storage. Historically, file systems were constructed on top of a...


IPV6 in Redhat Enterprise Linux

    In my previous post about IPV6- Solution for IPv4 Exhaustion , we have already discussed about the purpose and basic features of IPv6. In this post we will get discuss about basic IPv6 commands used in Redhat Enterprise Linux.          


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