Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

</SIZE>

</WHEN>

</RELOCATE>

This rule relocates files smaller than 10 megabytes to tier1 volumes, files between

10 and 100 megabytes to tier2 volumes, and files larger than 100 megabytes to

tier3 volumes. VxFS relocates all qualifying files that do not already reside on

volumes in their DESTINATION placement classes when the fsppadm enforce

command is issued.

DELETE statement

The DELETE file placement policy rule statement is very similar to the RELOCATE

statement in both form and function, lacking only the <TO> clause. File placement

policy-based deletion may be thought of as relocation with a fixed destination.

Note: Use DELETE statements with caution.

The following XML snippet illustrates the general form of the DELETE statement:

<FROM>

<CLASS> placement_class_name </CLASS>

</SOURCE>

additional_placement_class_specifications

</SOURCE>

</FROM>

<WHEN> relocation_conditions </WHEN>

</DELETE>

A DELETE statement contains the following clauses:

An optional clause that contains a list of placement classes from whose

volumes designated files should be deleted if the files meet the

conditions specified in the <WHEN> clause. No priority is associated

with the ordering of placement classes in a <FROM> clause. If a file to

which the rule applies is located on a volume in any specified

placement class, the file is deleted. If a DELETE statement does not

contain a <FROM> clause, VxFS deletes qualifying files no matter on

which of a file system's volumes the files reside.

<FROM>

367Administering SmartTier

File placement policy rules