Forum Discussion

shiv124's avatar
shiv124
Level 4
13 years ago

CPS server

Can some body throw some light on CPS server.What are the requirements to build CPS.

 

I am new to VCS.

 

I am planning to configure CPS fencing for my cluster

 

Thanks and regards,

 

Siva

business continuity
Cluster Server

4 Replies

Sort By
  • PranavPeshwe's avatar
    PranavPeshwe
    13 years ago

     

    Hi Siva,

                Here is an excerpt about CP servers, from the VCS admin guide:

    'The coordination point server (CP server) is a software solution which runs on a remote system or cluster. CP server provides arbitration functionality by allowing the VCS cluster nodes to perform the following tasks:
    Self-register to become a member of an active VCS cluster (registered with CP server) with access to the data drives
     
    Check which other nodes are registered as members of this active VCS cluster
     
    Self-unregister from this active VCS cluster
     
    Forcefully unregister other nodes (preempt) as members of this active VCS cluster
     
    In short, the CP server functions as another arbitration mechanism that integrates within the existing I/O fencing module.'
     
     
    VCS install and admin guides have information regarding how to configure and use CP servers (sometimes referred to as 'CPS') in a VCS cluster.
     
    Hope that helps.
     
    Kindly revert in case you have any further query.
     
    Thanks and regards,
    Pranav
     
     
     
     
  • AHerr's avatar
    AHerr
    Level 5
    13 years ago

    Hi Siva,

    If you are just looking for requirements of the CPS, the OS/Platform requirements are the same as VCS.  If you run VCS on a specific version of UNIX/Linux with the same VCS version (5.1SP1 or 6.0) then it should be supported.  The computing requirements are limited as the primary focus is the network since it is a network arbitrator for the cluster.  With VCS 6.0, we also support multi-IP with CPS.  This means that you can configured the CP Server to use multiple IPs to connect to the cluster nodes during a fencing event.  The CPS can run on physical or virtual machines but is limited to one instance (CP Server) per node, so they are not supported with multiple CP Servers in the same failover cluster.

     

    If you have further questions that are not in the documentation, please let us know.

     

    Thanks,
    Anthony

  • Gaurav_S's avatar
    Gaurav_S
    Moderator
    13 years ago

    I would strongly urge to understand the IOfencing concept & how fencing / membership arbitration works .... that will give a whole lot of idea to understand fencing / CPS & how each component works ....

    Have a run through

    https://sort.symantec.com/public/documents/sfha/5.1sp1/solaris/productguides/pdf/vcs_admin_51sp1_sol.pdf

     

    I would suggest to start from page 311 from "About membership arbitration"

    above section will give a whole lot of idea about fencing / different types of fencing, will ofcourse cover CPS as well ....

     

    Gaurav

  • shiv124's avatar
    shiv124
    Level 4
    13 years ago

    HI Anthony/gaurav/pranav

     

    thanks for the reply.i would go through the document and let you know if i have any fencing questions

     

     

    Regards,

     

    Siva