Computer Drive User Manual

13.2.3.1.2. Site Defined Account Apportionment Table
In UNIX-style accounting, the UID (as Account Index) maps only to a specific user. Some sites may
wish to apportion different percentages of the charges for a single UID among different project charge
codes, but without using site style accounting. HPSS does not provide a means to do this, but a site could
implement its own table and utilities to do so. Here is an example of an Account Apportionment Table
which a site might implement to do this:
UID % of (Project(s))
1478 75(DND) 25(CBC)
3152 45(DDI) 25(DND) 30(CBC)
5674 100(DDI)
... .................
The site would need to write utilities to tie the Apportionment table to the HPSS accounting report.
13.2.3.1.3. Maintaining Site Defined Accounting Files
Sites which require a site defined Account Map, Apportionment Table, or other accounting files must
develop tools to maintain and modify the files according to local accounting policies. Tools will be
necessary to change, add, or delete an HPSS Account Index and its associated information. Site
administrators must implement their own policies on what to do when an account is deleted, a user moves
to another project, or a user leaves the system.
Other needed mappings, if any, must be maintained by the site in the Account Map file. When Account
Validation is disabled, the site will need to maintain the user-to-account index mappings in the Account
Map file as well.
UNIX-style accounting changes of this nature are handled through the normal utilities that set up and
modify users and UIDs. A basic set of site-developed utilities are described in more detail below.
• Add a user and account. New entries can be made and the next available HPSS Account Index
number will be assigned from the free-list. The free-list will most likely consist of the last
assigned number plus one, but could include reclaimed index numbers if a site chooses to re-use
Account Index numbers that were previously assigned and no longer referenced. It is not likely
that a site will need to reclaim Account Index numbers, but it is an option.
• Delete a user. When a user is deleted from the Account Map, the HPSS files must be reassigned
to another HPSS Account Index. This should be done from the HPSS client interface side. The
update_flag should be set to true to indicate that this account index number can be reclaimed.
The reclaiming tool should check for files using the account number before reclaiming it. When
the Account Index is reclaimed, it can be put on the free-list to be re-used. It is important to keep
a copy of the Account Map that corresponds to the HPSS accounting snapshot of storage space in
use for that time period so that the proper site information can be matched.
• Delete account. When an account is deleted, it is handled in the same manner as when a user is
deleted.
• Modify account. The entries in the Account Map can be modified to correlate the Account Index
to different information, but care should be taken to keep a copy of the corresponding tables for
past HPSS accounting runs.
HPSS Management Guide November 2009
Release 7.3 (Revision 1.0) 337