diff --git a/doc.zih.tu-dresden.de/docs/data_lifecycle/permanent.md b/doc.zih.tu-dresden.de/docs/data_lifecycle/permanent.md index 33e6c242c76e3b7801081f857402591386bddcbe..14d7fc3e5e74819d568410340825934cb55d9960 100644 --- a/doc.zih.tu-dresden.de/docs/data_lifecycle/permanent.md +++ b/doc.zih.tu-dresden.de/docs/data_lifecycle/permanent.md @@ -1,10 +1,12 @@ # Permanent Filesystems -Do not use permanent filesystems as work directories: +!!! hint -- Even temporary files are kept in the snapshots and in the backup tapes over a long time, -senselessly filling the disks, -- By the sheer number and volume of work files, they may keep the backup from working efficiently. + Do not use permanent filesystems as work directories: + + - Even temporary files are kept in the snapshots and in the backup tapes over a long time, + senselessly filling the disks, + - By the sheer number and volume of work files, they may keep the backup from working efficiently. ## Global /home Filesystem @@ -33,8 +35,8 @@ It can only be written to on the login and export nodes. !!! note - On compute nodes, `/projects` is mounted as read-only, because it must not be used as - work directory and heavy I/O. + On compute nodes, `/projects` is mounted as read-only, because it must not be used as + work directory and heavy I/O. ## Snapshots @@ -57,8 +59,9 @@ To restore a previous version of a file: !!! note - The `.snapshot` directory is embedded in a different directory structure. An `ls ../..` will not show the directory - where you came from. Thus, for your `cp`, you should *use an absolute path* as destination. + The `.snapshot` directory is embedded in a different directory structure. An `ls ../..` will not + show the directory where you came from. Thus, for your `cp`, you should *use an absolute path* + as destination. ## Backup @@ -73,8 +76,8 @@ main reason for performance degradation of the filesystem. !!! note - If a quota is exceeded - project or home - (total size OR total number of files) - job submission is forbidden. Running jobs are not affected. + If a quota is exceeded - project or home - (total size OR total number of files) + job submission is forbidden. Running jobs are not affected. The following commands can be used for monitoring: @@ -83,10 +86,10 @@ The following commands can be used for monitoring: In case a quota is above its limits: - - Remove core dumps and temporary data - - Talk with your colleagues to identify unused or unnecessarily stored data - - Check your workflow and use `/tmp` or the scratch filesystems for temporary files - - *Systematically* handle your important data: +- Remove core dumps and temporary data +- Talk with your colleagues to identify unused or unnecessarily stored data +- Check your workflow and use `/tmp` or the scratch filesystems for temporary files +- *Systematically* handle your important data: - For later use (weeks...months) at the ZIH systems, build and zip tar archives with meaningful names or IDs and store them, e.g., in a workspace in the [warm archive](warm_archive.md) or an [archive](intermediate_archive.md)