Computer Systems Status
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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.
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11 June 2019 — Software Update
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The default version of Matlab for CS Linux hosts will be
updated to Matlab-9.6 (R2019a) on 11 June 2019.
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10 June 2019 — Scheduled Downtime
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riker.cs (under-graduate file server) will be down starting
@8a to have 40Gbps ethernet card installed. During this time
no under-graduate students will be able to access their home
directories. The outage should last about thirty minutes.
All login sessions on data.cs (under-graduate compute server)
will be terminated beforehand.
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23-24 May 2019 — Scheduled Downtime
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ITaP Networking will be upgrading our network link between
LWSN and the rest of campus on the evening of May 23 from 11PM
until May 24 2AM. They will also be reconfiguring routing
between CS and campus networks.
There will be extended network disruption for all CS networks during this time.
This work was not able to be completed as schedule. It has been postponed until a later date.
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16 May 2019 — Scheduled Downtime
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madoc.cs (faculty/staff file server) will be down starting @6a
to have it's /home and /scratch2 filesystems enlarged. It
should be operational by 7a.
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15-16 May 2019 — Scheduled Downtime
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Contractors on behalf of ITaP Networking will be upgrading
network infrastructure in LWSN on the evening of May 15 from
11PM until May 16 6AM. There will be general network
disruption.
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13 May 2019 — Scheduled Downtime
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cuda.cs (departmental GPU server) will have it's OS updated
from Ubuntu 16.04 to 18.04. It will be down starting @8a,
and should be back up and available by noon.
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9 May 2019 — Scheduled Downtime
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The XINU lab hosts (xinu00-xinu24) will be down for system
replacments starting @8a. They will return to service by 4p.
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7 May 2019 — Software Update
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Default Matlab installation for all CS Linux hosts updated
from 9.1 (R2016b) to 9.4 (R2018a). Removed 7.12 (R2011a)
installation.