Disk quotas are enabled on Theta project directories. Theta shares the same home file system with Mira/Cetus, located at /gpfs/mira-home where quotas are also enforced. But Theta has its own project file system separate from Mira/Cetus. Details on the home file system are listed in File Systems. Following are descriptions and examples for the home file system and the Theta projects file system
Home Directory Quotas
By default, each home directory is assigned a default of 100GB. File ownership determines disk space usage.
Project Directory Quotas
On the Lustre project file system (/lus/theta-fs0), each project is given the quota approved during the allocation period.
The amount of data stored below the /lus/theta-fs0/projects/PROJECT_NAME directory cannot exceed this quota. Unixgroup ownership counts toward the project directory quota. The total data usage under the project directory is used to calculate the disk quota.
To check project quota usage on the Lustre file system, enter this command specifying the unixgroup and project directory as follows.
joconne@thetalogin1:~> lfs quota -g Operations /projects/Operations/
Disk quotas for group Operations (gid 1279):
Filesystem kbytes quota limit grace files quota limit grace /projects/Operations/ 740 1073741824 1181116006 - 4 0 0 -
The -h option can help make the output easier to read (e.g. reporting usage in Terabytes).
> lfs quota -h -g catalyst /projects Disk quotas for grp catalyst (gid 1044): Filesystem used quota limit grace files quota limit grace /projects 17.1T 20T 22T - 2222419 0 0 - gid 1044 is using default file quota setting
If you need a quota increase for your project directory, please send an email to email@example.com with the machine, project name, new quota amount and reason for the increase.