Disk quotas #
Individual disk usage quotas are enforced on disk /home/users/
. You can use the quota
command to query your current usage and quota statistics:
quota -s
The output will look like this:
Disk quotas for user danilov (uid 1002):
Filesystem space quota limit grace files quota limit grace
/dev/mapper/DataGroup-Users
84246M 133G 143G 236k 1000k 1100k
There are two types of limits:
- the total size of used disk space (
space
); - the total number of files (
files
).
The command quota
will show you the current usage for space
/files
, as well as the value of quota
and the maximum limit
. Zeros in both quota
and limit
fields are used as unlimited values. The operating system will not allow the user to exceed the limit
value, returning the error Disk quota exceeded
. However, the user may exceed the quota
value for a limited time (7 days). In this case the remaining time will be displayed in the field grace
.
Disk quotas for user danilov (uid 1002):
Filesystem space quota limit grace files quota limit grace
/dev/mapper/DataGroup-Users
139G* 133G 143G 7days 236k 1000k 1100k
Add the following lines to your ~/.bashrc
file in order to check quota limits at login time:
# check local quotas and print in human-readable format
quota -lq 2>/dev/null || quota -ls
Disk /home/users
#
Starting from April, 2022 the following quotas are enforced in user home directories under /home/users
:
- maximum file size – 100 GB,
- maximum number of files – 1 million.
Individual quotas are defined for users with usage exceeding 50 GB or 500k files in March, 2022: extra 50 GB and 500k files are added to the actual usage. Individual quotas are subject to gradual decrease over time.
Unlimited disks #
Starting from April, 2022 the following disks are available for users:
Path | Size | Availability | Notes |
---|---|---|---|
/home/data4t |
4 TB | all nodes | transferred from /data4t |
/home/data14t |
14 TB | all nodes | transferred from /data14t |
/home/biomath |
30 TB | all nodes | transferred from /data90t/biomath , data for biomathematics research groups |
/home/geosci |
40 TB | all nodes | transferred from /data90t/geosci , data for geoscience research groups |