[Halld-controls] Fwd: [Halld-offline] gluon upgrade Tuesday 6/6

[Hovanes Egiyan]

There will be some interruptions to the alarm system tomorrow, see the 
forwarded message.
We should expect some false alarms or missing alarms. Also BCAL voltage 
controls may not
work and may need to be shutdown today. Other controls systems should 
not be affected.


-------- Forwarded Message --------
Subject: 	[Halld-offline] gluon upgrade Tuesday 6/6
Date: 	Mon, 5 Jun 2017 15:22:39 -0400
From: 	David Lawrence <davidl at jlab.org>
To: 	halld-online at jlab.org
CC: 	HallD Software Group <halld-offline at jlab.org>



Hi All,

   Tomorrow morning (Tues. 6/6/2017) we will begin upgrading a number of the gluon computers in the Hall-D
counting house to RHEL6.8. This will include:
  
EMU’s (gluon40-gluon49)
farm nodes (gluon100-gluon111)
desktops (gluon01-gluon05)
RAID servers (gluonraid1-gluonraid2)
DB server (gluon25)

None of the gluon30’s or gluon20’s (other than gluon25) will be upgraded. Also, the newer farm nodes
(gluon112-gluon119) as well as the newest RAID server (gluonraid3) are already at RHEL6.8 and so
will not need to be upgraded. Gluon46 will remain at RHEL7.

Please note that this may disrupt some archiving and any other operations using gluondb1 (i.e.
RCDB writing of new runs).

If this causes any issues that warrant a rescheduling of this upgrade then please let me know ASAP.
We are motivated to do this tomorrow though since the scicomp farm movement is delayed and
a time slot has opened for for our sysadmin.

-David


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