Status

Latest additions

• automatic pseudo-striping if
  • file consists of no more than one object

  • network has high latency, i.e. an effective RTT of > 10ms

Test cell in Hamburg

• Hartmut has built enhanced openafs-osd-bpc on dirac machines

  • some of the most recent changes are not yet in the svn trunk

  • latest code is in /afs/osdtest/openafs (also take note of perftest there)

• as of last week, the dcache interface machine was not yet available
• dcache support requires some special handling of linktables (?)

Policies

Database backend

• creation of sensible data structures in osddb.xg

• saving in the same manner as all data in the OSDDB
  • typed entries are already supported, so this will require very little work

Code structure

• from fileserver perspective, there are at least two places from where policy evaluation might make sense

  • in SAFSS_CreateFile, almost all relevant information is known already, however

  • size estimations can be made no sooner than in common_StoreData64

  • the latter has a disadvantage, as e.g. the filename needs to be looked up again

• all functions that make direct use of the policy data structures should live in the osddb subtree, specifically in osddbuser.c

• functions that add behaviour to the fileserver should live in vol_osd.c