Configuration Of A One-Partition System; Configuration Of A Two-Partition System - Overland Storage NEO 200S User Manual

NEO 200s/400s User Guide
Partitioning of 2U Libraries
When two half-height drives are installed in a 2U library, the library firmware supports
partitioning. The first partition contains the first magazine and the first drive (called
Drive 1). The second partition contains the second magazine and the second drive (called
Drive 2). The Mail Slot (if configured as Mail Slot) is shared.
Partitioning of 4U Libraries
When one or more half-height drives are added to a 4U library, the library firmware
supports partitioning. The first half-height drive in the bottom position is called Drive 1.
The half-height drive above it is called Drive 2. And so forth up to four drives.
Mixing of Drives
The libraries support a mix of Ultrium 4 and 5 drives in the same physical library and the
same logical library.
NOTE: While the libraries also support a mix of SAS and Fibre Channel drives in the same physical

Configuration of a One-Partition System

A single-partition system configured for a 4U library contains any and all drives present in
any drive positions, and all four magazines. When configured with one logical partition, the
Element Address assignments will be as follows for the Data Transfer (Drive) Element
(DTE) and the Storage Elements (STE):
DTE assignments:
STE assignments:
• Logical Library 1: Slot 1 through 23, 4096 (0x1000) through 4118 (0x1016).

Configuration of a Two-Partition System

A two-partition system must have at least two drives installed. One drive must be installed
in either drive position 1 or drive position 2, and another drive must be installed in either
drive position 3 or drive position 4. Partition 1 contains any drives in drive position 1 and
drive position 2. Partition 1 will also contain magazine 1 and magazine 2. Partition 2
contains any drives in drive position 3 and drive position 4. Partition 2 will also contain
magazine 3 and magazine 4.
When configured with two logical partitions, the Element Address assignments will be as
follows:
10400367-001 04/2012
library and same logical library, mixing drive interface types in the same logical library is
not recommended.
©2012 Overland Storage, Inc.
Library Partitioning and Element Addressing
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