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abstract:caviness:filesystems:filesystems [2021-08-12 12:23] – [Quotas and usage] anita | abstract:caviness:filesystems:filesystems [2023-01-13 14:04] (current) – [Lustre] anita | ||
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==== Lustre storage==== | ==== Lustre storage==== | ||
- | User storage is available on a [[abstract: | + | User storage is available on a [[abstract: |
- | space. This is used for temporary input files, supporting data files, work files, and output files associated with computational tasks run on the cluster. The filesystem is accessible to all of the processor cores via Omni-path Infiniband. | + | space. This is used for temporary input files, supporting data files, work files, and output files associated with computational tasks run on the cluster. The filesystem is accessible to all of the processor cores via Omni-path Infiniband. The default stripe count is set to 1 and the default striping is a single stripe distributed across all available OSTs on Lustre. See [[https:// |
<note warning> | <note warning> | ||
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==== Node scratch ==== | ==== Node scratch ==== | ||
- | Each compute node has its own 900GB local hard drive, which is needed for time-critical tasks such as managing virtual memory. | + | Each compute node has its own 900GB local hard drive (or for enhanced local scratch nodes 32TB), which is needed for time-critical tasks such as managing virtual memory. |
===== Quotas and usage ===== | ===== Quotas and usage ===== | ||
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All of Lustre is considered scratch storage and subject to removal if necessary for Lustre-performance reasons. All users can create their own directories under the ''/ | All of Lustre is considered scratch storage and subject to removal if necessary for Lustre-performance reasons. All users can create their own directories under the ''/ | ||
- | The example below is based on user '' | + | The example below is based on user '' |
< | < | ||
- | [(it_css: | + | [(it_css: |
Filesystem | Filesystem | ||
- | 10.65.32.18@o2ib: | + | 10.65.32.18@o2ib: |
</ | </ |