[Dsg-rich] RICH PVs disconnect after softIOC reboot.

[Tyler Lemon]

Hi Nathan, 

There was a PV that had a typo on the cRIO client that was corrected, to set the corrected LabVIEW program as the start-up application, the cRIO needs to reboot. After the cRIO reboot, the PVs were disconnected. The past procedure we've used to fix this is to reboot the softIOC. 

In the future, we will not reboot the softIOC. Is there something else we should do if after a cRIO reboot, the PVs are disconnected? 

Best regards, 
Tyler 


From: "Nathan Baltzell" <baltzell at jlab.org> 
To: "Tyler Lemon" <tlemon at jlab.org> 
Cc: "dsg-rich" <dsg-rich at jlab.org> 
Sent: Monday, May 14, 2018 10:22:32 AM 
Subject: Re: RICH PVs disconnect after softIOC reboot. 

Hi Tyler, 

There was a bug in the database file after some cleanup after the run. I fixed it and rebooted. Sorry about that. 

But actually, there’s basically zero reason to ever reboot that ioc. Certainly no changes on the crio ever require rebooting that ioc. What were you trying to achieve by rebooting it? 

-Nathan 


> On May 14, 2018, at 10:10 AM, Tyler Lemon <tlemon at jlab.org> wrote: 
> 
> Hi Nathan, 
> 
> This morning I rebooted RICH's soft IOC after updating an incorrect PV name on the EPICS client of RICHCRIO (IP: 129.57.160.213). 
> 
> After the reboot, all but three RICH interlock PVs show as disconnected on the EPICS screen, even the ones for RICHCRIOS1EP (IP: 129.57.160.214) whose EPICS client was not touched in any way. 
> 
> Rebooting the softIOC does not fix the error, nor does rebooting the cRIO. 
> 
> Is there anything else that would allow all PVs to reconnect? 
> 
> Please let us know. 
> 
> Best regards, 
> Tyler 
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