Computer Systems Status
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27 November 2019 — Scheduled Downtime
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Undergad compute server data.cs and undergrad file server
riker.cs will be down from 7AM until about 8AM to be down
to reconfigure backend network connections. During this
time, undergraduate student home directories will be
unavailable.
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7 October 2019 — Scheduled Downtime
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Ector will be down from 7AM until about 8AM for a system
move to another location in the datacenter. During this time
authentication services for grad/research UNIX/Linux
machines will be unavailable.
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7-8 September 2019 — Scheduled Downtime
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Computer Science departmental web-servers (www Sept. 7 and
*-wiki Sept. 8) will be down, starting @midnight. During this time,
server availability will be unreliable.
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5 September 2019 — Unscheduled Downtime
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Due to a misconfiguration on the undergraduate file server,
issues arose beteween the NFS server (riker.cs) and clients
(data.cs and other CS lab hosts). Restarting the server
corrected the issue.
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30 August 2019 — Unscheduled Downtime
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The primary server for the XINU backend devices in HAAS 257 is
off-line after the network switch replacement. ITaP has been
contacted. There is no estimated time of repair.
The network connectivity was restored about 10:00. Some backend devices were still unavailable until a reboot of the server at about 11:30
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29 August 2019 — Scheduled Downtime
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ITaP Networking will be replacing network switches in HAAS 257
on Thursday, August 29 from 5:30PM until about 6:30PM. During
this time the backend machines will be unavailable.
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29 August 2019 — Scheduled Downtime
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ITaP Networking will be replacing network switches in HAAS 257
on Thursday, August 29 from 5:30PM until about 6:30PM. During
this time the backend machines will be unavailable.
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27 August 2018 — Unscheduled Downtime
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The CS web server (www.cs.purdue.edu) will be rebooted at
11:20AM to resolve NFS problems. It should be back up before
11:30AM.
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18 August 2019 — Scheduled Downtime
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antor.cs (graduate file server) will be down starting @6a for
storage upgrades. The expected downtime will be 4-8 hours.
During this time, all graduate student home directories will be
unavailable. Any processes running on remote servers accessing
files on antor will likely become unresponsive. Please save all
work, kill off any processes and logout beforehand.
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11 August 2019 — Scheduled Downtime
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antor.cs (graduate file server) will be down starting @6a for
storage upgrades. The expected downtime will be 4-8 hours.
During this time, all graduate student home directories will be
unavailable. Any processes running on remote servers accessing
files on antor will likely become unresponsive. Please save all
work, kill off any processes and logout beforehand.
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7 August 2019 — Scheduled Downtime
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On Wednesday morning, August 7, between 5:30AM and 9:30AM,
Computer Science servers and networking will be down for an
infrastructure upgrade in our main data center.
Between 6AM and 8AM, electricians will be adding additional power whips to our main UPS in the data center. This will require that the power be turned off for the front row of racks. To facilitate the electricians' needs, IT staff will begin shutting down the servers in those racks at 5:30AM.
Servers will be returned to service when power has been restored.
In addition to servers, the power will be shut off to core network switches located in the racks. This means even though office computers and research computers in other locations will stay on, they will likely not have network access.
To avoid losing work, it is advised to save your work and log out of your computer before 5:30AM (i.e. when you leave work Tuesday) and not use your computer during this time, particularly the 6AM-8AM time while the network is down.
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6 August 2019 — Scheduled Downtime
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Arthur will be down from 9PM until about 10PM for a system
move to another location in the datacenter. During this time
authentication services for faculty and staff UNIX/Linux
machines will be unavailable.