The TALPA molehill
The TALPA molehill
Posted Mar 10, 2009 8:22 UTC (Tue) by florin-lwn (guest, #57068)Parent article: The TALPA molehill
A use case scenario would be HSM http://en.wikipedia.org/wiki/Hierarchical_storage_management.
Has two parts :
-Moving least recently used files on slower/cheap media.
-Bring them back when are needed.
Problems:
a. creating a list/database of candidate files
can be done when High Water Mark is reached:
1. by using find -atime (not optimal but can have rationale)
2. by inotify/FAM
3. TALPA/Dazuko
b. bringing back files
block requesting process until file is automatic or manual recovered from storage(robotic library,tapes, opticals,slow disk or inner zone of disk)