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UMIACS Help Desk Closed During Spring Break

The UMIACS Help Desk will be closed from Monday the 15th to Thursday 18th along with the rest of the University. We will be opening back up on Friday the 19th.

CLIP File System Downtime, March 8

March 8


CBCB Opteron Upgrades

the following hosts will be unavailable due to an OS upgrade from RHEL4->RHEL5.

beech and larch: Tuesday, March 9th at 10am -->Complete

sycamore and hemlock: Friday, March 12th at 10am

and after spring break --

privet and bayberry: Tuesday, March 23rd at 10am

please note that apart from the nodes being down, the /tmp directories will also be deleted.


This afternoon we experienced a problem with directory service configuration for most of our NFS service, that created problems accessing NFS services. After resolving the core issue, some of our NFS servers continued to have difficulties which now seem to have been resolved.

If you continue to have any difficulties, please contact staff, by sending email to, or calling 301-405-1775

ONStor Upgrade Mon March 1st 2010 8pm-12am

Staff will be upgrading the last of our 2 ONStor clusters which provide NFS and CIFS file service to many of our labs and centers. Because they are clustered and highly available we expect to be able to upgrade the cluster without any downtime. There may be however some short hiccups when we fail servers over they should just show up as delays in file service. The following are the virtual servers that will be affected by this upgrade:

  • umiacsfs02 (nfshomes)
  • umiacsfs01 (legacyfs file systems)
  • umiacsfs00 (/usr/local and /opt file systems)
  • umiacs-webftp (ftp and web trees)
  • clampfs00
  • lccdfs00

If you have any questions please email

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Please see our HelpDesk for additional support.

Technical Reference

Welcome to UMIACS Wiki. This is the main place to find documentation and information about your account and the technical services that UMIACS offers. If this is your first time please start here Getting Started.

We provide many Core Services which include EMail, Backups and VPN.

We have lots of specific Lab Facilities that you may be interested in.

Please check here if you are interested in Ordering Equipment.