Disk Quota Policy

To prevent storage misuse and problems resulting from filesystems becoming full, INCDCNCA has implemented the following data usage policies and limits.

File system Hard Limit Exceeded /home Once quota or number of files exceeded, new files will not be allowed. No automatic warning implemented. This may lead to login problems. /data/unixgrp Once quota or number of files exceeded, new files will not be allowed and all jobs will fail. No automatic checks implement and users are allowed to submit jobs and run then even no quota available.

• There are two conventions for defining digital storage capacities, namely, base 2 (1KB = 1024 bytes) and base 10 (1KB = 1000 bytes), and both are in common use. At INCDCNCA we follow Base 2, the following definitions are used when referring to digital storage capacities (filesystem quota limits, usage, etc.):

Convertion Table -- -- 1 KiloByte (KB) 2 ^ 10 1024 bytes 1 MegaByte (MB) 2 ^ 20 1048576 bytes 1 GigaByte (GB) 2 ^ 30 1073741824 bytes 1 TeraByte (TB) 2 ^ 40 1099511627776 bytes 1 PetaByte (PB) 2 ^ 50 1125899906842624 byte

• To know more about quota usage and filesystem please see the directories and filesystems section

NOTE Users should check in advance if they have enough quota for their jobs since this may lead to job failures and loss of CPU hours pledged to them.