This is an old revision of the document!
Table of Contents
ICS Maintenance June 18, 2006
In order to accomodate a 12 hour facilities shutdown on June 19, 2006, ICS Computing Support will begin shutting down non-critical ICS infrastructure in the ICS Datacenter at 5pm on June 17, 2016 and performing general maintenance throughout the day on June 18th, 2016.
Facilities's Message
Facilities High Voltage Team has been performing preventative maintenance on many of the campus building transformers, switchgear, and breakers. While performing maintenance we have been able to identify and repair many equipment deficiencies and reduce the possibility of electrical failures and outages.
Facilities High Voltage Team has scheduled preventative maintenance on Computer Science T-18 & T-19 transformers and switchgear for Sunday, June 19th, 2016, from 5:00am-5:00pm
In order to perform this maintenance it will require a 12-hour electrical shutdown to the entire building. The only power will be emergency power.
Effects on ICS
ICS Co-Maintenance
ICS will be taking this opportunity to perform maintenance on multiple systems that would individually cause significant disruption for users.
Critical Infrastructure
Effects on Critical infrastructure will be not be affected bavailable during this period. That infrastructure includes:
- ICS Home Page: http://www.ics.uci.edu
- ICS Email Systems
- ICS Home Directory (qualified with exceptions)
- ICS Samba Service (IGB Samba will be unavailable)
- ICS Samba Service
- Many ICS hosted websites (contact helpdesk to see if yours will be available).
Plan on brief outages on several ICS systems during the day. A more specific schedule will be provided later. These items are required to implement network redundancy inside the data center and perform maintenance on systems:
Planned Maintenance
Summary
- ICS NetApp Storage Outaages: Several service interuptions are expected to setup network switch redundancy.
- ICS shared space: Move /net/tron/support0_tainer_sata/shared/ to net/cybertron/vol2/ics_shared
- SGE: Central Spool data relocation
- Subversion data relocation
- Gitlab data relocation
- Complete Data Center Reboot
- Move MySQL
- Move ugrad accounts
- CentOS and Ubuntu OS Patches and Updates
- New UPS installation
- Bunker CentOS7 Upgrade
Gitlab Data Relocation
Copy file Update /etc/auto.gitlab
OS Patches and Updates
Begging on Monday morning, June 10th, we will be running updates on all CentOS and Ubnunt Linux clients. Beginning at 9pm, systems that have been updated will be shutdown.
Storage Shutdown
The following NFS servers will be unavailable beginning at 9pm on Friday the 17th.
- bunker.ics.uci.edu
- coachz.ics.uci.edu
- gaia.ics.uci.edu
- gigantor.ics.uci.edu
- kraken.ics.uci.edu
- nerve.ics.uci.edu
Scheduled Preparation Week of 6/13
| Date Time | Description |
| 6/17 5pm | Undergraduate Home Directory Move |
| 6/17 9pm | SGEsge Shutdown and SGE Spool migration to Cybertron |
| 6/17 9pm | Gitlab shutdown and directory migration |
| 6/17 10pm | Move ICS Shared to Cybertron |
| 6/18 8am | ICS 10Gb/s Network Upgrade |
| 6/18 8am | Final IGB and ICS Relocation Home and Extra Directory Moves |
| 6/18 8am | ICS MySQL Server Maintenance |
| 6/18 10am | Update Cybertron LDAP Configuration |
| 6/18 10am | Upgrade bunker to CentOS7 operating system with ZFS on Linux |
| 6/18 1030am | Rolling restart of critical infrastructure hosts |
| 6/18 10pm | Shutdown non-critical hosts and infrastructure in the ICS DC |
| 6/19 5am | We anticipate loss of commercial power and cooling to the data center |
| 6/19 5pm | We anticipate that power will be restored to the ICS DC. Some hosts will power on |
| 6/19 10pm | Power on hosts in the datacenter |
| 6/19 10pm | #59377: Fwd: Power on hosts for BIC |
