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The Lustre based work filesystem /scratch is the main work filesystem for the HLRN clusters. We provide no backup of this filesystem. The storage system of Emmy provides around 60GiB65GiB/s streaming bandwith and Lise around 85GiB/s in normal operation. The storage system is harddisk based (with solidstate disks vor metadata), so the best performance can be reached with sequential IO of large files that is aligned to the fullstripe size of the underlying RAID6 (Emmy 1MiB, Lise 16MiB).
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