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The user homedirectories are located on mirrored RAID5 boxes for the protection of userdata - this homedirectory is available on all the execution hosts and frontends in the cluster. However since the network does not support a great deal of traffic, users are required to use the scratch space "/scratch" on the execution hosts for temporary data. When a job completes, output from the computation can/must be copied to the users homedirectory or "/wkspace" (read on). The information about PBS will show some examples of this. *PLEASE NOTE* After the completion of a job, "/scratch" will be erased on the execution nodes used by that job. The user has access to 2 other pools of diskspace on all execution nodes and frontends called "/wkspace1" and "/wkspace4" meant for storage of temporary data. These areas have a capacity of 4,6TB and 76TB respectively. Current usage on the homedirectory and workspace filesystems is available on the Disk Usage web page. DCSC/SDU does not offer diskspace for long term data archival. *PLEASE NOTE* We do not backup any of the filesystems in the Horseshoe cluster. If a filesystem crashes, your data is lost unless you have evacuated them to safe place outside DCSC/SDU.
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