ADIC 601354 사용자 설명서

601354 Rev A

Initial Configuration

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When the archive media class action mode migrate option is 
selected, a migration priority is assigned to the archive media 
class. This value is used only during media type migration. 
When media type migration begins, media from the highest 
priority archive media class are first moved to the source 
archive Eject list. If additional media must be ejected to meet 
the media type low mark, the media class with the next highest 
migration priority is chosen for processing. 

The migration archive is the target archive for all media ejected 
because media class migration or media type migration. As a 
medium or media are removed from the source archive for the 
purpose of migration, the destination archive (or migration 
archive) Console ENTER button is highlighted. 

When preferred media placement entries (DataShelf archive 
only) are defined for a Media Class, VolServ directs placement 
of media entered into that media class to a particular area in an 
archive. 

When a medium is entered into an archive for any reason 
(import, checkin, move, migrate) or dismounted from a drive, 
VolServ software checks if its media class is configured for 
preferred placement. If it is, VolServ software directs 
placement to a specific area in the archive. Note that preferred 
placement values override the archive fill mode made during 
archive configuration. 

Entries in this field are four integers, separated by commas. Its 
form is #,#,#,#. The entries stand for row, column, shelf, and 
bin. 

The primary use of preferred placement is to ensure that media 
in a particular media class are placed near a system resource, 
such as drives.