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--- doku:vsc3_global_quotas [2018/11/07 07:55] – [Note: 7.11.2018] jz
+++ doku:vsc3_global_quotas [2021/08/23 08:51] (current) – removed goldenberg
@@ Line 1: / Line 1: @@
-==== Quotas on $GLOBAL ====
-Quotas are enforced in the ''$GLOBAL'' filesystem to avoid storage problems because of full fileservers. They are set on a per project basis and each project initially gets 500GiB of free space and the possibility to create 100'000 files.
-==== Checking Quotas ====
-A user can check his quota with the beegfs-ctl command.
-<code>
-beegfs-ctl --getquota --gid ProjectNumber
-</code>
-Yields the following output:
-<code>
-      user/group     ||           size          ||    chunk files
-     name     |  id  ||    used    |    hard    ||  used   |  hard
---------------|------||------------|------------||---------|---------
-   ProjectName| xxx  ||   18.08 GiB|  500.00 GiB||     2178|100000
-</code>
-The 3rd and 4th column show the used space and the total available space.
-The 5th and 6th column show the number of files created and the maximum amount of files allowed for the project.
-If a user hits one of these two limits he will be blocked from writing on the storage. Deleting files will unblock the user after a maximum of 10 minutes.
-==== Increasing Quotas ====
-As long as there is free space on ''$GLOBAL'' users can apply for more storage space via email to the service email address. The 'Fair use' policy introduced with the commissioning of VSC-3 is still valid, quotas are just to make sure, that no one interferes with the jobs of others.
-==== Pitfalls ====
-Quotas are checked every 10 minutes. If a user deletes files because he was over quota it can take up to ten minutes until he gets allowed to write on the storage again.
-The number of chunkfiles displayed can be up to 4 times higher than the actual amount of files stored on the filesystem. This is because big files will be stored distributed on up to 4 storage targets.
-==== Note: 7.11.2018 ====
-In order for qutoa enforcement to work it is apparently necessary that user and group IDs are known on the storage servers. Therefore the ''/etc/nslcd.conf'' has to be proper and the service needs to be running.
-Currently we have the following beegfs versions in operation:
-^ ^  version  ^
-| Storage server |  6.18  |
-| VSC-3 nodes   |  6.17  |
-| VSC-3 plus nodes |  6:19  |