Disk Quota Policy
To avoid the disk shortage INCD implemented a policy of disk usage which are detailed below.
| File system | Hard Limite Exceeded |
|---|---|
| /home | Once quota or number of files exceeded, new files will not be able to be created. No automatic warning implemented. This may lead to login |
| /data/unixgrp | Once quota or number of files exceeded, new files will not be able to be created 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 INCD 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 |
NOTE Users should check in advance if they have enough quota for there jobs since this may lead to high job failures and loss of CPU hours pledged to them.