NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
On Thu, 6 Nov 2014, Wojtowicz, David wrote:
You'd think switching to the backup facility would be somewhat of an automated process. (I don't know what it actually involves)
It is and it isn't. You have to cleanly shutdown the primary uplink, and then spin up the backup uplink at the same time. Normally, this
process can be done manually, but quickly. The problem is when your uplink that you are using goes down, and you can't communicate with it. You have to shut that one off first, or else you can get two uplinks transmitting to one bird, when theprimary comes back online...which is a bad situation. In that case, and I don't know how it's done, you have to manually
shut off the uplink you were using, and then quickly spin up the other backup uplink. In this case, I completely understand why it takes them an hour and more to do that, because they also need a little time to figure out why they lost the uplink in the first place. The two issues now are: 1. Why did the generator on the primary system fail? 2. The backup uplink, which they are on now, I think has no generator backup, only commercial power. Please correct me if I'm wrong... Gilbert ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** Staff Meteorologist, Northern Illinois University **** E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx *** web: http://weather.admin.niu.edu ** Twitter: http://www.twitter.com/NIU_Weather ** Facebook: http://www.facebook.com/niu.weather * *******************************************************************************
ldm-users archives: