US Robotics 7931 Guide de l'utilisateur télécharger pdf (Page 51)

Chapter 2 Using Automated Libraries and Manually Loaded Drives 27

Tracking Exported Media – The Historian

The Sun StorageTek SAM historian keeps track of cartridges exported from an

automated library or a manually mounted device. The historian acts like a virtual

library, but it has no defined hardware devices. Like an automated library, it is

configured in the mcf file, has a catalog that records entries for all cartridges

associated with it, can import and export cartridges, and appears in File System

Manager as another automated library.

You can configure the historian in the mcf file by using a device type of hy. If you do

not configure the historian in the mcf file, it is created as follows:

In the preceding entry, n+1 is the last equipment ordinal in the mcf file plus 1. If you

want to use a different equipment ordinal or path name for the catalog, you need to

define the historian in the mcf.

The historian library catalog is initialized with 32 entries when the historian first

starts. Make sure that the catalog resides on a file system large enough to hold the

entire catalog. Your site might want to track existing Sun StorageTek SAM cartridges

that have been exported from the library. In this case, you need to build a historian

catalog from the existing cartridges as described in the build_cat(1M) man page.

The following two configuration directives in the defaults.conf file affect the

behavior of the historian:

■ If the exported_media = unavailable directive appears, any cartridges

exported from an automated library are flagged as unavailable to the historian.

Requests for cartridges flagged as unavailable generate an EIO error.

■ If the attended = no directive appears, it declares to the historian that no

operator is available to handle load requests. Requests to load cartridges known

to the historian, and not already loaded, generate an EIO error.

For more configuration information, see the historian(7) and defaults.conf(4)

man pages.

Importing and Exporting From an Automated Library

A mailbox is an area in an automated library for adding and removing cartridges

from the automated library. The import(1M) command moves a cartridge from the

mailbox to a storage slot. The samexport(1M) command moves the cartridge from a

storage slot to the mailbox. For most libraries, if a cartridge is present in the mailbox

when the Sun StorageTek SAM software is started, the software imports the

cartridge automatically upon startup.

historian n+1 hy - on /var/opt/SUNWsamfs/catalog/historian

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 287 288

Pas de commentaire

US Robotics 7931 Guide de l'utilisateur Page 51