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docs/merlin7/02-How-To-Use-Merlin/storage.md
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---
title: Merlin7 Storage
#tags:
keywords: storage, /data/user, /data/software, /data/project, /scratch, /data/scratch/shared, quota, export, user, project, scratch, data, data/scratch/shared, merlin_quotas
#last_updated: 07 September 2022
#summary: ""
sidebar: merlin7_sidebar
redirect_from: /merlin7/data-directories.html
permalink: /merlin7/storage.html
---
# Merlin7 Storage
## Introduction
@@ -30,13 +21,13 @@ Some of the Merlin7 directories have quotas applied. A way for checking the quot
This command is useful to show all quotas for the different user storage directories and partitions (including AFS). To check your quotas, please run:
```console
$ merlin_quotas
$ merlin_quotas
Path SpaceUsed SpaceQuota Space % FilesUsed FilesQuota Files %
-------------- --------- ---------- ------- --------- ---------- -------
/data/user 30.26G 1T 03% 367296 2097152 18%
/data/user 30.26G 1T 03% 367296 2097152 18%
└─ <USERNAME>
/afs/psi.ch 3.4G 9.5G 36% 0 0 0%
└─ user/<USERDIR>
/afs/psi.ch 3.4G 9.5G 36% 0 0 0%
└─ user/<USERDIR>
/data/scratch 688.9M 2T 00% 368471 0 00%
└─ shared
/data/project 3.373T 11T 31% 425644 2097152 20%
@@ -117,7 +108,7 @@ Directory policies:
* No backup policy is applied for the user home directories: **users are responsible for backing up their data**.
Home directory quotas are defined in a per Lustre project basis. The quota can be checked using the `merlin_quotas` command described
[above](storage.md#how-to-check-quotas).
[above](storage.md#how-to-check-quotas).
### Project data directory
@@ -151,7 +142,7 @@ Directory policies:
* Read **[Important: Code of Conduct](../01-Quick-Start-Guide/code-of-conduct.md)** for more information about Merlin7 policies.
* It is **forbidden** to use the data directories as `/scratch` area during a job's runtime, i.e. for high throughput I/O for a job's temporary files.
* Please Use `/scratch`, `/data/scratch/shared` for this purpose.
* Please Use `/scratch`, `/data/scratch/shared` for this purpose.
* No backups: users are responsible for managing the backups of their data directories.
#### Dedicated project directories
@@ -190,6 +181,6 @@ Scratch directories policies:
* Read **[Important: Code of Conduct](../01-Quick-Start-Guide/code-of-conduct.md)** for more information about Merlin7 policies.
* By default, *always* use **local** first and only use **shared** if your specific use case requires it.
* Temporary files *must be deleted at the end of the job by the user*.
* Remaining files will be deleted by the system if detected.
* Remaining files will be deleted by the system if detected.
* Files not accessed within 28 days will be automatically cleaned up by the system.
* If for some reason the scratch areas get full, admins have the rights to cleanup the oldest data.