Sun Microsystems StorageTek Modular Library System SL500 - Manual (Page 176)

System Requirements for Library Partitioning
144 SL500 User’s Guide • July 2008 Revision: KA • 96116
System Requirements for Library
Partitioning
Note – Starting with SL500 firmware version 1300 and SL Console version FRS_4.00,
library partitioning upgrades must be installed through the SL500 licensing utility.
Partitioning established on a library prior to version 1300 is retained permanently. See
Chapter 4, “Licensing” for details.
Note – ACSLS does not support partitioning on the SL500 library.
Enabling and Disabling Partitioning
In order for you to use partitions in a library, the partitioning feature must be enabled
by your StorageTek CSE. Contact your StorageTek CSE for assistance.
A library with partitioning enabled can be in either of the following states:
■
Partitioned—The library has at least one user-defined partition with a valid partition
ID.
■
Non-partitioned—The library has no user-defined partitions. A non-partitioned
library behaves in the same manner as a library that does not have partitioning
enabled; that is all storage cells, drives, and CAPs are accessible to all hosts.
To disable partitioning on a library, you must first delete all partitions. The library state
will then change to “non-partitioned.”
Partition Planning
The partitioning feature offers great flexibility in the use of your library. It also requires
careful planning, a thorough knowledge of library wall and storage cell mapping, and
expertise in configuring and administering host software applications. There must be
clear communication among all parties involved, including system programmers and
administrators, library operators, and your Sun service representative.
Before creating partitions, you must plan the storage area that is needed for resident
tape cartridges and anticipate the number of required free cells. You must understand
the boundaries of each partition and the host ownership relationships. You must verify
that all tape drives and cartridges have been moved to the proper locations, according
to the planned host/storage cell and host/tape drive assignments.