This page is intended to offer an overview of the filesystems on the Bohrg
and Dominion clusters which are of interest to users. More information is
available on the pages below
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The "core" storage on Bohrg and Dominion is based around an array of SCSI disks which is physically attached to storage, the head/submit node for Bohrg.
In addition, each node contains 1 or 2 internal disks.
The following filesystems live on the central SCSI disk and are automounted on dominion1 (head/submit node for Dominion) and on all the compute nodes (on both clusters):
/home/bohrg/<username> /scratch/bohrg/<username> /software/bohrg/<application>These are, respectively, users' home directories, users' central scratch space and the applications available, such as Gaussian and the PGI compilers.
On each node, spare disk space has been allocated as scratch space. Currently this is accessible as
/tmp # Bohrg compute nodes /local_scratch # Dominion compute nodesA naming convention which will apply across all nodes will hopefully be worked out soon!
All filesystems which live on the central SCSI disk are automounted to make them available to users. This means that they are mounted on demand and if they are not used for a specified time they are unmounted.
The automounter can cause confusion. Here is an example:
bohrg> cd /software bohrg> ls -a . .. bohrg> cd bohrg # or cd ./bohrg bohrg> ls -a amber gaussian...Automounted directories are mounted on demand --- listing the parent directory does not count as demand!
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