Veritas™ File System 5.0.1 Administrator's Guide

<TO>
<DESTINATION>
<CLASS>tier2</CLASS>
</DESTINATION>
</TO>
<WHEN>
<SIZE Units="MB">
<MIN Flags="gteq">10</MIN>
<MAX Flags="lt">100</MAX>
</SIZE>
</WHEN>
</RELOCATE>
<RELOCATE>
<TO>
<DESTINATION>
<CLASS>tier3</CLASS>
</DESTINATION>
</TO>
<WHEN>
<SIZE Units="MB">
<MIN Flags="gteq">100</MIN>
</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:
<DELETE>
<FROM>
167Dynamic Storage Tiering
File placement policy rules