Flash Info No 2024-20
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SCRATCH Migration Procedure
[English version below]
Hello,
As previously announced, the arrival of the H100 extension comes with a renewal of the Jean Zay storage spaces with the installation of a new Lustre storage system offering increased storage capacity and improved bandwidth.
To anticipate the shutdown of the current SCRATCH space, we invite you to start using the new space accessible via the environment variable $NEWSCRATCH (or $ALL_CCFRNEWSCRATCH for the common project space) by modifying your submission scripts accordingly. A subsequent communication will specify the date of this shutdown with at least 15 days' notice.
There will be no automatic copying of the current SCRATCH content to the new space. Therefore, if you wish to keep certain data currently stored on the SCRATCH, make sure to copy it to your new space $NEWSCRATCH (for example, via one or more jobs on the "archive" partition or interactively from the login nodes if the volume to be transferred is limited) and delete data you no longer need.
Please note that this new SCRATCH space is also subject to the automatic deletion of data not used for 30 days.
For more information on the ongoing operations on Jean Zay as part of the H100 extension installation: http://www.idris.fr/jean-zay/modifications-extension-jean-zay-h100.html.
Best regards, The IDRIS support team
Dear Jean Zay user,
As previously announced, the installation on the new H100 extension comes with a renewal of the Jean Zay storage spaces with the installation of a new Lustre storage system offering an increased storage capacity and an improved bandwidth.
To anticipate the shut down of the current SCRATCH space, we invite you as of now to start using the new SCRATCH space already accessible through the $NEWSCRATCH (or $ALL_CCFRNEWSCRATCH for the common project spaces) by modifying accordingly your submission scripts. The actual shut down date of the current SCRATCH will be announced later with at least a 15 day notice.
There will be no automatic copy of the current SCRATCH space to the new one. Therefore, if you wish to keep some data currently stored on the SCRATCH, be sure to copy it to your new space $NEWSCRATCH (for instance through one or more jobs on the "archive" partition, or interactively from the login nodes if the volume to be transferred is limited) and to remove data you do not need anymore.
Please be aware that the new SCRATCH space is also subject to the 30 day deletion policy of the unused data.
For more information on the work in progress on Jean Zay for the H100 extension: http://www.idris.fr/eng/jean-zay/modifications-extension-jean-zay-h100-eng.html.
Best regards, The IDRIS support team