Stash: Temporary Data Storage

Overview

Stash runs on Ceph, a highly-scalable, clustered, POSIX-compliant network filesystem. You may use this feature for temporary data storage.

This page will introduce users to accessing data stored on stash remotely using HTTP and XRootD.

Stash Area

After you login to login-el7.uscms.org, you can access your stash area as followed:

Stash is mounted on the CMS Connect login node ( login-el7.uscms.org) at /stash, and is accessible to workers via XRootD. The portion of your Stash designated public is also available directly via HTTP.

Set up tutorial files

Accessing Stash via HTTP

User accounts on CMS Connect have a directory that is automatically web accessible via http://stash.osgconnect.net/+username . This directory is located at /stash2/user/username/public. To make a file or directory accessible, copy it to this directory or a subdirectory of this directory and give files permissions of 644 and directories permissions of 755. E.g. :

Browsing the public Stash area

Copying files via HTTP

You can download your files using wget easily:

Accessing files using wget

You can also use curl, for example:

Accessing files using wget

-- CarlLundstedt - 2022-12-01