No Accessible Controller for this Device when adding Disk Library (New Setup)

Last post 02-04-2019, 9:52 AM by tsmtmiller. 9 replies.
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  • No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 01-29-2019, 11:29 AM

    We just had new CV hardware environment installed and during setup everything has gone smooth until trying to add a Disk Library. Im getting the annoying: "No Accessible Controller for this Device. Please check if Media Agent is online."  Im not seeing any "connections refused" entries and dont understand the ending errors on this CVMA log. 

    The Commserve is at another site and the new environment (This media agent) is a remote location. The network team assured ports were opened which copy our other remote sites. 

     


    Attachment: error1.jpg error2.jpg
  • Re: No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 01-29-2019, 1:27 PM

    Are you sure that ports 8400-8403 are open in both directions? Id check from both servers to be sure, if the MA cant get back to the CS the config may fail with the err you see.

  • Re: No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 01-29-2019, 4:40 PM

    Hi tsmtmiller

    Can you also do a "Check Readiness" at the Client level of the MediaAgent, to confirm communication is good?

    Also when configuring the Disk Library, can you also use the "Expert Storage Configuration" and then share the results?

    As mentioned by SG1, these type of errors are usually due to communication related issues between CommServe and MediaAgent, and the above test should help you narrow it down.

    Thank you 

    Winston 

  • Re: No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 01-29-2019, 5:31 PM

    "Check Readiness" at the Client level of the MediaAgent - is this not the error2.jpg I posted? The expert Mode the same thing happens. I have sent a request for the network admins to double check the firewall rules. 

  • Re: No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 01-29-2019, 6:01 PM

    Hi tsmtmiller 

    Apologies for that, I didn't see the attachment from the original post. 

    On top of what is showing in CVMA, do we see any additional errors from CVD?

    Regards

    Winston 

  • Re: No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 01-30-2019, 11:50 AM

    This AM I noticed the Disklibrary suddenly was there. I have no idea how or why but it was not showing any information like available disk space. So I removed it and added it back and the same No Accessible Controller popped up. Could it be timing out? This location has really low bandwidth.

    CVD Log: I cant make any sense of the errors but I uploaded the ending few.


    Attachment: CVD.log.jpg
  • Re: No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 01-30-2019, 12:56 PM

    The creation of just a library name is just commserve side processing, its not until you add a mount path that the device controller part comes into play. Your issue sounds like a network issue, low bandwidth would do it but it would have to be really really slow. 

    Is there a physical firewall in place? If yes, have you checked the CV FW Config to make sure it is set in line with your physical FW?

    Regards

    SG1

  • Re: No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 01-31-2019, 5:33 AM

    Hi tsmtmiller 

    From the looks of the CVD.logs, everything looks to be alright (the errors highlighted in red are just  informational and would not be the cause of the controller errors).

    I do agree with SG1's proposition to check the physical firewall, to ensure everything aligns. 

    If the issue is on-going, I also do recommend to open up a Support Ticket to have it checked out.

    Thank you 

    Winston 

  • Re: No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 01-31-2019, 3:22 PM

    Yeah Network said the ports were open so I guess its support time.

     

    This is the port info as I know:


     8400, 8401, 8402, 8403, 135, 139, 443  and the Port Range of 50000-65503 Is allowed both ways from Commserve / Backup Server

     902 Allowed b/w Commserve & Vcenter


    443, 902 Allowed b/w Backup Server and Local ESX Hosts

  • Re: No Accessible Controller for this Device when adding Disk Library (New Setup)
    Posted: 02-04-2019, 9:52 AM

    There is a utility called CVPING in Program Files\Commvault\ContentStore\Base which allows you to ping using a port number and I found some connections refused.

    Its written like: cvping.exe <IP> -UseIPv4 -port 8400

    So now its back to the network guys

     

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