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Storage​

How much storage space do I have?​

Users are provided with 40GiB of storage space in their $HOME directory and unlimited storage space (subject to the availability) in their $SCRATCH directory. Please note that files stored in $SCRATCH directory are deleted after 15 days from their last modification date.

How to find the current usage of my storage quota in $HOME?​

Users can obtain the current usage of their storage quota in $HOME by typing the following command in the terminal.

$ usertools quota info

An example output would be:

Username: nischay
Quota Exceeded: No
Total Storage Alloted: 40 GiB
Total Storage Available: 37.86 GiB (94.65 %)
Total Storage Consumed: 2.14 GiB (5.35 %)

I am getting the message "Disk Quota Exceeded". What should I do?​

To ensure fair share of storage resources on the HPC facility, users have limited disk quota for their $HOME directory. Once the storage space exceeds the allotted quota, users might receive the above message. To resolve this issue, we request the users to either shift files from their $HOME directory to $SCRATCH or to their personal machine.

Can I increase my storage quota?​

Users are provided with 40GiB of storage quota for their home directories. However, users can request for more storage space on a case by case basis by contacting the HPC facility. Please include a proper justification for the request.

How to find the files and directories that are occupying significant space in home directory?​

The du command lists the size of files/folders.

$ du

For example, if we want to view the top 20 files and directories occupying the most space in $HOME directory, then type the following command:

$ du -ah ~/ 2>/dev/null | sort -n -r | head -n 20

However, some softwares and libraries create hidden directories in the home directory. To see their data usage, you can run the following command:

$ du -sh ~/.??*

Is there any backup available for my data?​

Currently, we maintain daily backups of the $HOME directory for a period of 30 days. This is subjected to the HPC policy and also the availability of storage space on the backup drives. In case a user has accidentally lost any of their data, they may contact the system administrator at hpc@hyderabad.bits-pilani.ac.in for a possible restoration.

Please note that $SCRATCH directory is not backed up by the system and therefore not restorable in case of any loss of data. Users are advised to maintain their own backups as the HPC facility is not responsible for the loss of users data.