Instruction Manual

Table 3 Sampling of Media Type Identifiers

IdentifierMedia TypeMedia Domain

“L4” as the last two characters in the

barcode

LTO-4LTO

“LU” as the last two characters in the

barcode

LTO-4 WORMLTO

“L5” as the last two characters in the

barcode

LTO-5LTO

“LV” as the last two characters in the

barcode

LTO-5 WORMLTO

With a valid media type identifier present and the Media Type Checking setting enabled, which is

the case by default, a host is prevented from executing invalid media moves across differing media

types. For example, a host can be prevented from moving LTO-5 media to an LTO-4 drive. If an invalid

move is attempted, the library returns an error to the host.

Returning media identifiers to hosts

With the Return Media Identifier setting, you can control if and where a media type identifier appears

in the volume serial number that is returned to the host.

Table 4 shows an example of how the return media identifier behaves, depending on the setting you

choose: Disabled, Prefix, Suffix, and Pass Through. The bold, underlined portion is the media identifier.

Table 4 Return Media Identifier Behavior Example

Volume Serial Number Returned to Host

Setting

AB1234Disabled

L5AB1234Prefix

AB1234L5Suffix

AB1234L5Pass Through

Based on actual LTO-4 barcode: AB1234L5

For more information about configuring the Media Type Checking and Return Media Identifier settings,

see Creating Partitions.

Working with Library Control Paths

You must define a control path for each library partition. The control path is used to connect a partition

to a host application. The ESL G3 does not automatically assign a control path when you create a

partition. When selecting a library control path for a partition, you are selecting which tape drive

will present (or proxy) the virtual robot LUN to the SAN and hosts.

Creating Partitions

You can create library partitions in the following ways:

• Creating Partitions with the Setup Wizard

Modifying the Library Configuration36