Table of Contents
Summer Quarter 2018 Maintentance Events
Calendar
Summer Quarter Maintenance
Fall quarter Maintenance has been schedule for 9/17/2018. Please check the Summer Maint. website for updates. Send email to helpdesk@ics.uci.edu to have maintenance rescheduled.
- Date: 9/17/2018
- Time: All Day
Network Switch Firmware Update and Reboot
Affected Hosts: Large number of ICS Hosts
Reason: Switch unresponsive to remote logins.
Impact: These switches provide network connection for a large number of servers. As the firmware update occurs, except network interruptions of up to 1 hour. If you have a server that needs uninterrupted network connection, please email helpdesk@ics.uci.edu with the server name and the reason.
Relocate john-luther to Critical Rack Cluster
Affected Hosts:
- john-luther.ics.uci.edu
- ldap3.ics.uci.edu (john-luther-v0.ics.uci.edu)
- gitlab.ics.uci.edu (john-luther-v1.ics.uci.edu)
Reason: Relocating server to rack with emergency power.
Impact:
- gitlab will be unavailable during this period.
Pedigree/Beem systems to new power
Affected Hosts:
- Pedigree cluster
- Beem2 and Beem3
Reason: Relocating power to 110V to free up power needed for another project.
Impact: The server will be turned off for about 10-15 minutes while power is rerouted. This will happen after the servers are patched. Rather than a reboot, a brief shutdown will occur instead.
OS Maintenance
Affected Hosts: All ICS and IGB CentOS6/7 hosts.
Reason: Patching multiple critical vulnerabilities that can lead to loss of sensitive information and allow attackers to preform trivial DDOS exploits.
- Kernel Side-Channel Attack using L1 Terminal Fault: CVE-2018-3620 and CVE-2018-3646
- Segmentsmack TCP implementations vulnerable to Denial of Service: CVE-2018-5390
Impact:
Kernel packages updates are required to mitigate these vulnerabilities. New kernel packages will be installed to all CentOS6/7 followed by a reboot to load the new kernel.
If this downtime would cause hardship for your research, please send mail to helpdesk@ics.uci.edu to setup an alternate schedule.
KEA DHCPD Server Release
Affected Hosts: ICS Hosts using DHCP
Reason: Upgrading to ISC KEA DHCP Server.
Impact: Clients should not experience any interuption in service.
Gitlab Server Downtime
- SYSTEM: Gitlab Server
- DATE: September 17, 2018
- START TIME: 0800
- DURATION: 2 hours
(Please note this is an estimate; systems may be up sooner or later than expected, due to unforeseeable circumstances.)
AFFECTS:
During this downtime window, the ICS Gitlab server will be unavailable.
REASON:
The GitLab server will be updated to the latest security release, 11.1.2.
#68260 MySQL Server Maintenance
- SYSTEM: melvil-dewey-v0.ics.uci.edu
- DATE: September 17, 2018
- START TIME: 0600
- DURATION: 15 minutes
(Please note this is an estimate; systems may be up sooner or later than expected, due to unforeseeable circumstances.)
AFFECTS:
During this period the MySQL server will be unavailable. Any dependent websites, including https://www.ics.uci.edu, and applications will be unavailable.
REASON:
A restart is required in order to limit the size of the ibtmp1 caching file.
VirtualBox 5.2.18 Upgrade #68338:
- SYSTEM: All ICS Systems
- DATE: Sept 14, 2018
Affected Hosts: All ICS hosts
Reason: Upgrading to the latest version of Virtual Box on all ICS hosts between quarters.
Impact: Running VM's may require a restart. No other service outage anticipated.
Vagrant 2.1.4 Upgrade #68338:
- SYSTEM: All ICS Systems
- DATE: Sept 14, 2018
Affected Hosts: All ICS hosts
Reason: Upgrading to the latest version of Vagrant on all ICS hosts between quarters.
Impact: Running VM's may require a restart. No other service outage anticipated.
Odin Emergency Maintenance
- SYSTEM: odin.ics.uci.edu
- DATE: Aug 27, 2018
- START TIME: 1130
- DURATION: 2 hours
Affected Hosts: odin.ics.uci.edu.
Reason: Dell Tech will be onsite replacing failed parts.
Impact: 2 hours downtime/interruption on odin host.
This is an estimate and systems may be down longer or back online sooner than estimated.
Patching Odin
- SYSTEM: Odin Server
- DATE: Aug 27, 2018
- START TIME: 10:00
- DURATION: 2 hours
Affected Hosts: odin.ics.uci.edu.
Reason: Upgrading the BIOS firmware to fix the CPU error, referring to ticket #68146.
Impact: 2 hours downtime/interruption on odin host.
If this downtime would cause hardship for your research, please send mail to helpdesk@ics.uci.edu to setup an alternate schedule.
