Sun Microsystems SL500 manual Installing the Partitioning Feature, Allocated Storage Capacity

Partition Planning

Installing the Partitioning Feature

The following special considerations apply after you successfully install the Partitioning feature on a previously non-partitioned library.

■You must reboot the library after installing the Partitioning license.

■Until you create at least one partition, the library remains in a non-partitioned state; that is all licensed storage cells, drives, and CAPs are accessible to all hosts.

Allocated Storage Capacity

In partitioned libraries, the total number of storage cells allocated to all library partitions cannot exceed the licensed capacity of the library.

In partitioned libraries, there is no default active storage region. You must explicitly assign storage cells to partitions, thereby configuring the active storage regions for each partition. See “Partitioning Process” on page 153 for details.

Partition Configurations

You must use the standalone SL Console or Web-launched SL Console to configure library partitions; the partitioning screens are not available on the local operator panel.

To configure a partition, you must define the following information:

■Partition Summary Information

■Host-Partition Connections

■Partition Boundaries

For detailed instructions on defining library partitions, see “Partitioning Process” on page 153.

Partition Summary Information

Partition summary information includes the partition ID and name, and the barcode format to be used on cartridge labels. Partition IDs must be unique and can range from 1–8.

Host-Partition Connections

Host-partition connections identify the hosts that are able to access a partition. Each partition appears to the host as a separate library module. A host can control one or more partitions. In addition, it is possible for more than one host to control a single SCSI partition, but it is recommended that you exercise caution in implementing this configuration, as some host applications may not allow for resource sharing.

Apartition can have one or more host-partition connections. The host-partition connection configuration is user-defined and consists of the following information:

■World Wide Port Name of the host bus adapter

■Port number of the library Fibre Channel card

96116 • Revision: KA Chapter 6 Library Partitioning 145