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doku:vsc4_storage [2021/06/09 13:44] – created mhickel | doku:vsc4_storage [2023/10/23 10:58] (current) – [VSC Storage] goldenberg | ||
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- | test | + | ===== VSC Storage ===== |
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+ | VSC-4 and VSC-5 provide two unified facilities for data: the high-performance IBM Storage Scale Parallel Filesystem and a node-local flash storage. The parallel filesystem is the same on both clusters, so projects that exist on both clusters can access the same data. | ||
+ | They are accessible under: | ||
+ | |||
+ | * **IBM Spectrum Scale**: | ||
+ | * '' | ||
+ | * '' | ||
+ | * **Local SSD** | ||
+ | * ''/ | ||
+ | |||
+ | ==== Usage '' | ||
+ | |||
+ | '' | ||
+ | Quota on '' | ||
+ | |||
+ | ==== Usage '' | ||
+ | |||
+ | '' | ||
+ | Quota on '' | ||
+ | |||
+ | ==== Usage '/ | ||
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+ | /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 ==== | ||
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+ | 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. | ||
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