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doku:vsc4_storage [2021/06/09 13:55] – mhickel | doku:vsc4_storage [2023/10/23 10:58] (current) – [VSC Storage] goldenberg | ||
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- | ===== VSC-4 Storage ===== | + | ===== VSC Storage ===== |
- | VSC-4 provides three facilities for persisting | + | VSC-4 and VSC-5 provide two unified |
+ | They are accessible under: | ||
* **IBM Spectrum Scale**: | * **IBM Spectrum Scale**: | ||
* '' | * '' | ||
* '' | * '' | ||
- | * **BeeGFS (former FhGFS)**: | ||
- | * '' | ||
- | * '' | ||
* **Local SSD** | * **Local SSD** | ||
* ''/ | * ''/ | ||
- | Usage '' | + | ==== Usage '' |
+ | |||
+ | '' | ||
+ | Quota on '' | ||
+ | |||
+ | ==== Usage '' | ||
+ | |||
+ | '' | ||
+ | Quota on '' | ||
+ | |||
+ | ==== Usage '/ | ||
+ | |||
+ | /local is a locally mounted NVMe disk. The size is about 450GB on VSC-4 and 1.8TB on VSC-5. Data retention is not guaranteed, al data is lost on a reboot, so they need to be transferred after use. | ||
+ | |||
+ | ==== Backup Policy ==== | ||
+ | |||
+ | We operate a backup for disaster recovery on two physical sites with IBM Jaguar tape libraries. In the case of $DATA, this backup can be toggled off and on in the project management page. Restore of lost or deleted files is not possible. Backup of user files is solely the responsibility of each user. | ||
- | $HOME is the location of the user UNIX home directory. It can be accessed from login and compute nodes. $HOME should be used for storing/ | ||
- | Quota on $HOME is 100GB and 10^6 number of files and **can not** be extended |