diff --git a/doc.zih.tu-dresden.de/docs/data_lifecycle/lustre.md b/doc.zih.tu-dresden.de/docs/data_lifecycle/lustre.md index 891808543974bb9ad92ed9897762f0d6d66bdbe2..d08a5d5f59490a8236fb6710b28d24d9a01fcfe6 100644 --- a/doc.zih.tu-dresden.de/docs/data_lifecycle/lustre.md +++ b/doc.zih.tu-dresden.de/docs/data_lifecycle/lustre.md @@ -1,11 +1,11 @@ -# Lustre File System(s) +# Lustre Filesystems ## Large Files in /scratch The data containers in [Lustre](https://www.lustre.org) are called object storage targets (OST). The capacity of one OST is about 21 TB. All files are striped over a certain number of these OSTs. For small and medium files, the default number is 2. As soon as a file grows above ~1 TB it makes sense -to spread it over a higher number of OSTs, e.g. 16. Once the file system is used >75%, the average +to spread it over a higher number of OSTs, e.g. 16. Once the filesystem is used >75%, the average space per OST is only 5 GB. So, it is essential to split your larger files so that the chunks can be saved!