Instead you should run commands on specific No matter what tool you use you should never try to list or process all files in your project Run man lfs-find for further instructions and information on its limitations. Lfs find -lazy has some edge-case where it can be as bad as du or silently fail to get correct Read the documentation at LUE before using it. Avoid using find options like -size or similarĬSC has developed an approximate tool called LUE (Lustre usage explorer) for reporting amount ofĭata in folders.If you have a large amount of files, analyzing how much data you have in different folders canīe time consuming and also heavy on the file system. Options for this can be for example your organizations own storage systems, or Archive files that should be available longer than the lifetime of compute projects.These tools make the usage of Allas safer, and can make your data management easier.įor very large data transfers we recommend using rclone.Ī tutorial for data transfer is available at allas-examples. Medium sized data transfers, in particular when you have a large amount of small files. The typical model is to move the files to Allas. Move files not in active use now, but that need to be available later during the project.See here for available compression tools. If the file size drops by 50%, go ahead and compress all similar files. Ascii text files usually compress very well. Compress files if it reduces file size.Note that we cannot bring back files that you delete by mistake so do these operations carefully! Remove files that are not needed anymore in your project's scratch folder.We kindly ask all users to help to keep disk usage manageable, and performance reasonable. Removing files may decrease the BU consumption of your project, since you are billed for excess disk usage beyond 1 TiB.Do not trust it to store all of your research data. There are no backups of scratch disk area.To use their scratch folders for longer term storage. A Lustre parallel file system starts to lose performance when more than approximately 70% ofĭisk space is used, and the more the disks fill up, the slower the performance will get.ĬSC has allocated more quota than there is space, hence it is not even possible for all users.Users are not expected to use all of their quota, the maximum quota is only meant for All other data should be removed, or stored in other more suitable storage systems. These are only intended as temporary storage space for data that is inĪctive use. Managing data on Puhti and Mahti scratch disksĪn important task for all users on Puhti and Mahti is to manage what data resides in projectįolders in scratch.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |