Technical Staff Blog

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During a routine update of our firewall there was an unexpected outage, which we are working to identify the cause of.  Most systems and connectivity have already been restored and the remaining systems will be brought back online in just a few minutes.

If you continue to have trouble after 4pm, please email problem@cs ...

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The CIS Networking Group will be swapping out a UPS in the 5th floor networking closet on Tuesday, Oct. 25th, 6am-7am. The networking switches in the closet will loose power during this maintenance.  These switches provide networking connections to southwest section of the CIT building on the 4th and 5th.

The following rooms on the ...

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ibm-gpfs.jpg We are currently experiencing some issues with our GPFS file system, which are causing logins to the departmental systems to hang. Updates to this blog post will be added as we debug the issue.

08:34 -  A file system fsck process appears to be hung. A support call to IBM has been initiated as we ...

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Brown Secure Wifi Cert Update

CIS has pushed an updated certificate for the "Brown" secure wireless network.  If you're having connectivity issues with one of Brown's wifi networks, please try connecting to the "Brown-Guest" network to visit https://wifi.brown.edu/ and follow the on-screen instructions to re-estabilish your connection to the secure network(s).

For further assistance ...

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We are about to perform an emergency failover of the department FastX gateway, which should be complete by 12:00pm. This will mean that anyone who is presently connected to FastX will lose their session(s), along with any unsaved work.

Several users reported over the weekend that the FastX gateway was refusing new connections ...

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All tstaff managed linux desktop will be rebooted on Wednesday, August 31st, at 7am.

Tstaff is pushing out a new nvidia driver for all managed linux desktop running X in order support new nvidia graphics hardware.  Any managed linux desktop with the following nvidia cards listed below will get the new 367.44 driver.  A ...

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whoa-1444580.jpg At about 1am this morning, disk hardware providing a backing store for our VMWare machines went offline. This caused nearly every one of our production servers to go offline as well as all our hosting class machines provisioned for users and research groups. CIS is investigating the issue and we will post updates as we ...

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power-outage.jpg We experienced some sort of power blip on Saturday, likely the result of the storms that rolled through. This took out a number of grid machines. The majority of the machines are back and operational again, but obviously any jobs running on the machines have been killed. There are still about two dozen machines we ...

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Unfortunately, there is an issue with the Grid Master process which has rendered qstat, qsub, etc... unusable.  We're working on diagnosing the problem, now.  But, our Grid Engine guru is out of town, at the moment.

Any jobs that were submitted before the outage are still running and will continue to run, as expected ...

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CIS Networking Group announced CS edge switches maintenance schedule on August 2nd, 6am - 8am.  See below.   

During this maintenance windows, all desktop machine network connection will be affected.  This includes most of ssh forwarding hosts except a few virtualize hosts like unison, oolong, kui, emma, eternity, earl and bushtea. A few servers will also be ...

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