Chapter 2. Installation Planning; Determining The Number Of Logical Libraries (Partitions); Basic Guidelines; Library Sharing - IBM System Storage TS3310 Setup And Operator Manual

Chapter 2. Installation Planning

"Determining the Number of Logical Libraries (Partitions)"

"Using Multiple Control Paths" on page 2-2
"Using Multiple Data Paths for Data Path Failover" on page 2-3
"Determining SCSI and Fibre Channel IDs" on page 2-4
"Server Attachment" on page 2-8
Installation planning is an important first step in the installation process. By
planning the installation, all decisions about system layout will be made prior to
actually handling the hardware. This should simplify the installation process.
Important: Make a copy of the Appendix D, "Library Configuration Form," on
Determining the Number of Logical Libraries (Partitions)
You can partition the library into as many logical libraries as there are drives in the
library. LTO-3 SCSI and Fibre Channel drives are allowed in the same library;
however, they are not allowed in the same logical library.

Basic Guidelines

v Each logical library must contain at least one drive.
v A library configuration of exactly one partition equals the entire physical library.
v The library prevents requests from the server to move media across the

Library Sharing

The library's default configuration allows a single application to operate the library
through a single control path. Often, however, it is advantageous to be able to
share a single library between heterogeneous (dissimilar) or homogeneous (similar)
applications. Some applications (and some servers) do not allow for sharing a
library between systems. Configurations can be created that enable the library to
process commands from multiple heterogeneous applications (such as an IBM
eServer System P
homogeneous applications (for example, the same application run by several
pSeries servers).
From the library's Web User Interface or Operator Panel, the following actions can
be performed:
v Configure the library so that it is partitioned into separate logical libraries that
© Copyright IBM Corp. 2005, 2006
page D-1. Using this form, make a record of your library's
configuration. Store this form in a safe location and update it any time
hardware is added or settings are modified.
boundaries of logical libraries.
™
application and a Windows
independently communicate with separate applications through separate control
paths. This configuration requires no special capabilities from the server or
application. (For more information, see "Using Multiple Logical Libraries for
Library Sharing" on page 2-2.)
®
application) and multiple
2-1