Configuring Library Partitions
PTP Addressing Scheme
The following terms and definitions apply to PTP operations:
Home Library: For two libraries connected by PTPs, the home library is the library supplying power and signals to the PTP through the left side of the Drive and Electronics Module, as viewed from the front of both libraries.
Away Library: For two libraries connected by PTPs, the away library is the library on the left side of the home library as viewed from the front of both libraries.
The PTP addressing scheme is the same
PTP numbering for the home library is:
■Library number
■Rail number
■
■1 (Side number)
■0 (Row number)
PTP numbering for the away library would be:
■Library number
■Rail (LSM) number
■+6 (Column number)
■1 (Side number)
■0 (Row number)
Note – Columns +6 and
However, the host software (ACSLS and HSC) consider Panel 1 as the PTP area, whereas elevators are Panel 0. The first library installed in the complex is 1 and each additional library added to the complex increments by 1.
Home and away designations are always referenced from a PTP perspective of the library it is connected to. When more than two libraries are connected in a complex, every library that has two neighbors is both a home and away library, depending on the perspective of the PTP devices. For example, the middle library in a set of three is the home library for the PTP's on its left and the away library for the PTPs on its right.
Configuring Library Partitions
Note – Library partitioning is a licensed feature which must be enabled by your Sun service representative. This feature is available starting with SL8500 firmware version 3.7x and StreamLine Library Console version 3.25. See “System Requirements for Library Partitioning” on page 24 for complete details.
34 StreamLine™ SL8500 Modular Library System User's Guide • March 2007 | Revision K • 96154 |