ICS Maintenance March 28, 2017

  # Puppet Updates
  # SGE Scheduler Reconfiguration
  # 62504: Kraken life cycle Update
  # Ugrad and Grad student gidNumber Realignment
  # Quota reassessment

Puppet Updates

ICS hosts are provisioned and configured using Puppet. During this maintenance period we will be moving the following list of hosts to our newer Puppet3 server. There may be some downtime associated with this process.

The following list is subject to downtime throughout the day as they are converted from puppet2 to p uppet3:

Hostname	Purpose
adrian-monk-v0.ics.uci.edu	Authentication Server
addison-v6.ics.uci.edu	Authenticatoin Server
colin-baker-v2.ics.uci.edu	Boot Server
columbo-v3.ics.uci.edu	Checkmate Web Server
pedigree cluster	Cycle Service
arcus cluster	Research Cluster
cacofonix cluster	Research Cluster
nebula cluster	Research Server
addison-v4.ics.uci.edu	Database Server
hawk-v3.ics.uci.edu	DNS Server
spenser-v1.ics.uci.edu	DNS Server
columbo-v4.ics.uci.edu	Faculty and Staff Cycle Server
rockford-v1.ics.uci.edu	Faculty and Staff Cycle Server
addison-v5.ics.uci.edu	Gitlab Server
rockford-v3.ics.uci.edu	High Availability Load Balancer
columbo-v0.ics.uci.edu	IMAP Server
tristram.ics.uci.edu	Instruction VM Server
rockford-v8.ics.uci.edu	ldap4
hawk-v1.ics.uci.edu	LDAP Server
hawk-v4.ics.uci.edu	License Server
columbo-v10.ics.uci.edu*	Mail Server
addison-v0.ics.uci.edu	Mail Server
addison-v3.ics.uci.edu	Mail Server
colin-baker-v1.ics.uci.edu	Mail Server
columbo-v5.ics.uci.edu	Mail Server
rockford-v4.ics.uci.edu	Mail Server
steele-v2.ics.uci.edu	Monitoring Server
columbo-v9.ics.uci.edu	MySQL Server
rockford-v6.ics.uci.edu	MySQL Server
kiss.ics.uci.edu	Openlab GPU Server
motorhead.ics.uci.edu	Openlab GPU Server
paul-mcgann-v1.ics.uci.edu	paul-v1
columbo-v2.ics.uci.edu	Print Server
neuromancer.ics.uci.edu	Resarch Server
wintermute.ics.uci.edu	Resarch Server
hermod.ics.uci.edu	Research Cycle Server
nimbus.ics.uci.edu	Research Cycle Server
borealis.ics.uci.edu
ichasc.ics.uci.edu
benedictus.ics.uci.edu	Research Server
blazar.ics.uci.edu	Research Server
csc64-1.ics.uci.edu	Research Server
drg.ics.uci.edu	Research Server
hypernova.ics.uci.edu	Research Server
invictus.ics.uci.edu	Research Server
kingoftown.ics.uci.edu	Research Server
loquat.ics.uci.edu	Research Server
paso.ics.uci.edu	Research Server
scivi.ics.uci.edu	Research Server
sepbic.ics.uci.edu	Research Server
velox.ics.uci.edu	Research Server
tahiti.ics.uci.edu	Research Sever
xander.ics.uci.edu	Reserch Server
addison-v7.ics.uci.edu	SGE Server
rockford-v7.ics.uci.edu	SGE Server
columbo-v11.ics.uci.edu	sm2
columbo-v8.ics.uci.edu	Time Server
spenser-v3.ics.uci.edu	Time Server
paul-mcgann-v3.ics.uci.edu	tsm-admincenter
paul-mcgann-v2.ics.uci.edu	Web Server
tom-baker-v1.ics.uci.edu	Web Server
tom-baker-v3.ics.uci.edu	Web Server
paul-mcgann-v0.ics.uci.edu	Web Server
sylvester-mccoy-v0.ics.uci.edu	Web Server
sylvester-mccoy-v1.ics.uci.edu	Web Server
sylvester-mccoy-v2.ics.uci.edu	Web Server
sylvester-mccoy-v3.ics.uci.edu	Web Server
tom-baker-v2.ics.uci.edu	Web Server
tom-baker-v0.ics.uci.edu	Web Srever

SGE Schedule Configuration (63144 SGE Set job_load_adjustments)

We will be modifying the SGE configuration to favor distributed job scheduling across all nodes in a cluster. This is a significant change to the way that jobs are distributed to the SGE clusters.

At present, jobs are rapidly assigned to a node based on load. This results in some nodes becoming full and some nodes sitting idle. We hope the new configuration will encourage a more balanced scheduling of jobs across the entire cluster.

62504: Kraken Lifecycle Update

* Downtime Notice *

SYSTEM: kraken.ics.uci.edu

DATE: 3/28/2016

START TIME: 1000

DURATION: 2 hours

              (Please note this is an estimate;  systems may be up sooner
              or later than expected, due to unforeseeable circumstances.)

AFFECTS: NFS service will be unavailable during this period.

REASON: Applying the latest firmware.

Ugrad and Grad student gidNumber Reallignment (ticket #62245)

The gid numbers for the ugrad and grad will be changed from 110 and 102 to 1001 and 1002, respectivevly. File group ownership will be adjusted to reflect these changes. This task may take several days to complete.

Openlab CentOS 7 Upgrade

#63147: Centos7 Install Remaining Instructional Hosts

The following hosts will be upgraded to CentOS7:

acdc.ics.uci.edu kiss.ics.uci.edu motorhead.ics.uci.edu tristram.ics.uci.edu

All Openlab hosts will receive the lastest patches and be rebooted.

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