Computer Systems Status

15 May 2025 — Scheduled Downtime

At the end of the 2025 Spring semester, departmental compute server, mc17.cs, will be decommissioned and removed from service. Students should instead use mc18.cs, mc19.cs, mc20.cs or mc21.cs.

NOTE - The hosts listed are primarily for instructional use, and secondarily for research. If research jobs obstruct or hinder instructional jobs, they will be terminated.

24 April 2025 — Unscheduled Downtime

There are campus networking issues that are causing problems with web sites that use the campus single sign-on (SSO) authentication. This is making myCS effectively unusable, or at least very slow to respond.

The problems started around 5AM and are continuing as of 11AM. There is no estimated time of repair.

This was resolved around 12:30PM

18 April 2025 — Unscheduled Downtime

Early today departmental compute server (dahj.cs.purdue.edu) became uresponsive and was rebooted. Upon reboot, it was determined that the boot drive has failed. Working with the vendor to get a replacement. Return to service time is undetermined.

UPDATE - 22 April 2025 - dahj.cs became available at ~2 PM.

31 March 2025 — Unscheduled Downtime

2:40 PM departmental compute server (mc18.cs.purdue.edu) became uresponsive and was rebooted. It was available again by 3:01 PM.

14 January 2025 — Unscheduled Downtime

5:26 PM departmental undergrad compute server (data.cs.purdue.edu) became uresponsive and was rebooted. It was available again by 5:29 PM.

17 December 2024 — Scheduled Downtime

On December 17-20 outside contractors will be replacing the old and failing UPS units in our main LWSN data center (LWSN 2133). The timing is necessary to get the work done before Purdue shuts down for the winter break. This does mean that many machines will be off-line starting Tuesday morning, December 17.

Note, this is before grades are officially due (grades are due at 5PM, Tuesday, December 17). If you rely on CS systems for any aspect of your grading work please make every effort to have it completed by 5PM on Monday, December 16.

This will have no impact on Purdue IT services such as O365 mailboxes and Purdue career account file space.

We are making arrangements to keep some infrastructure servers and all network switches on-line during this time, but we cannot keep everything on-line. We will endeavor to have the following servers on-line during the work. Some may need to be rebooted as we temporarily move power feeds (older machines that don't have redundant power supplies).

Department Fileservers

antor
cos-8bender
data
madoc
riker

Authentication servers

arthur
balan
ector
lore

CS Mail exchangers

mailslot
newman

Other Servers

bors (DHCP)
delphi (myCS)
pendragon (DNS)
pythia (www.cs.purdue.edu)

The following machines will be powered OFF during the work

beethoven
blueberry
cache
cos-8video-2581
cs490clc0
cs490clc1
cs490clc2
dahj
dumbo
float
ganon
ganondorf
gavea
golub
gorman1
gorman2
indy01
indy02
indy03
indy04
indy05
indy06
ipanema
jacobi00
jacobi01
jacobi02
jacobi03
jacobi04
jacobi05
jacobi07
jacobi08
legion
locutus
mc18
mc19
mc20
mc21
mctesla
mipha
nimbus01
nimbus02
nimbus03
nimbus04
nimbus05
noodle
pizza01
potomac
puma
pumbaa
raid
reflector
sigint
simba
singular
snowball01
snowball02
snowy01
snowy02
snowy03
snowy04
soji
sushi1
sushi2
sushi3
sushi4
taggart
trojai
tux
urca
vm0
vm1
vm2
void01

30 November 2024 — Scheduled Downtime

Beginning @8:00a Monday, November 25 SLURM job submission will be disabled on queue.cs.purdue.edu. Then, beginning @8:00a Saturday morning, November 30, queue.cs.purdue.edu will be down for system maintenance for approximately one hour. queue.cs.purdue.edu should be available again @9:00a.

12 August 2024 — Scheduled Downtime

Beginning Monday, August 12 myCS (https://my.cs.purdue.edu/) will be restricted to on-campus and VPN access. To use myCS you will need to access it from a campus computer or connect with Purdue VPN (https://it.purdue.edu/connections/vpn/)

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