Configuration File Storage


Included topic: Configuration File Storage


Introduction to Storage Section

This section gives information about the options in the Storage section of the configuration file. Several of these values are constrained and need to be set in a way that is consistent with one of the OSG storage models. Please review the Storage Related Parameters section of the Environment Variables description as well as the Overview of Services and Site Planning discussions for explanations of the various storage models and the requirements for them.

Options

The options given in bold type are mandatory.

Option Values Accepted Explanation
se_available True, False This indicates whether there is an associated SE available. It should be set to True or False.
default_se String If an SE is available at your cluster, set default_se to the hostname of this SE, otherwise set default_se to UNAVAILABLE.
grid_dir String The grid_dir setting should point to the directory which holds the files from the OSG worker node package. It should be visible on all of the computer nodes and will be accessed via the $OSG_GRID environment variable. Read access is required, though worker nodes don't need write access.
app_dir String The app_dir setting should point to the directory which contains the VO specific applications, this should be visible on both the CE and worker nodes and will be accessed via $OSG_APP. Only the CE needs to have write access to this directory. The $OSG_APP directory must also contain a sub-directory (etc) with 1777 permissions.
data_dir String The data_dir setting should point to a directory that can be used to store and stage data in and out of the cluster and accessed via the $OSG_DATA variable. This directory should be readable and writable on both the CE and worker nodes.
worker_node_temp String The worker_node_temp directory (accessed via $OSG_WN_TMP) should point to a directory that can be used as scratch space on compute nodes. It should allow read and write access on a worker node and can be visable to just that worker node. If not set, the default is UNAVAILABLE
site_read String The site_read setting should be the location or url to a directory that can be read to stage in data via the variable $OSG_SITE_READ. This is an url if you are using a SE. If not set, the default is UNAVAILABLE
site_write String The site_write setting should be the location or url to a directory that can be write to stage out data via the variable $OSG_SITE_WRITE. This is an url if you are using a SE . If not set, the default is UNAVAILABLE


Complete: 3
Responsible: SuchandraThapa - 06 May 2008
Reviewer - date: JeffPorter - 12 Jun 2008
Comment: JohnWeigand - 28 Jan 2009 - updated the app_dir explanation for the ./etc sub-directory and permissions
Review status: NEW

Topic revision: r6 - 28 Jan 2009 - 19:08:22 - JohnWeigand
 
TWIKI.NET

TWiki | Report Bugs | Privacy Policy

This site is powered by the TWiki collaboration platformCopyright by the contributing authors. All material on this collaboration platform is the property of the contributing authors..