Scicomp Volatile Disk (115TB)
Project Name Quota (GB) Reserved (GB) Used (GB)* Small File (MB)** Small File Count
a-apex 4,500 1,500 0 0 0
a-e08007 1,500 500 32 5 1,107
a-g2p 18,000 6,000 10,992 5 1,901
a-parity 6,000 2,000 195 0 5
clas12 5,000 100 89 136 38,795
clasdatamine 5,000 100 14 8 957
clase1 5,000 1,000 1,277 294 78,058
clase1-6 10,000 2,000 3,033 225 33,962
clase1dvcs 10,000 2,000 2,015 27 10,612
clase1dvcs2 5,000 3,000 2,567 40 13,136
clase2 10,000 1,000 1,005 0 11
clase6 5,000 100 0 0 0
claseg1 5,000 100 0 0 0
claseg1dvcs 5,000 400 625 20 47,041
claseg2 10,000 1,000 959 0 20
claseg3 10,000 1,000 928 128 49,403
claseg4 5,000 500 494 0 0
claseg5 10,000 1,000 5,961 1 52
claseg6 10,000 1,000 1,053 127 31,843
clasg10 5,000 100 55 0 1
clasg11 5,000 100 1,628 737 141,937
clasg12 10,000 1,000 1,306 20,967 1,052,818
clasg13 10,000 1,000 1,318 12 7,403
clasg14 35,000 35,000 27,509 4 2,581
clasg3 5,000 100 0 0 0
clasg7 5,000 100 0 0 0
clasg8 1,000 100 0 0 0
clasg9 20,000 7,000 2,260 80 18,696
clashps 5,000 1,000 1,000 7 3,121
hallc 30,000 10,000 18,322 765 38,062
halld 30,000 10,000 12,349 147 44,119
positron 1,000 500 0 0 3
test 300 100 65 0 0
Total 302,300 90,400 97,052 23,735 1,615,644

*Project Used is updated twice daily. **Small file counts all files lesser than 50 KB.

Delete Policy:
The /volatile area is managed by a software that cleans up the area periodically in multiple steps listed below. The first two steps will always take place. Third step will proceed if the total usage of the area still not meet the target.
  1. All files that have not been used for more than 6 months will be deleted. This step will be enforced on Sept. 1 2012.
  2. If a project exceeds its quota and the disk pool is full, the least-recently-used (LRU) files will be deleted until the total usage of the project is below its quota.
  3. Each file is assigned a deletion index that combines the excess usage of a project over its reservation coupled with the period of time the file has not been used. A daemon process will delete files according to the index in a descending order until the total /volatile usage is below the target.