Appendix B. SCSI element types, SCSI addresses, and
physical configurations
For an overview of library partitioning and element addressing, see “Library partitioning and element
addressing” on page 287.
The following tables contain element addresses for the 2U library and the 4U library.
Table 60. 2U library SCSI element types and element addresses
Element Type Element Address Range
Media Transport (Accessor) Element (MTE) 1 (0x01)
I/O Station Element (IEE) 16 (0x10)
Data Transfer (Drive) Element (DTE) 256 (0x100), 257 (0x101)
Storage Elements (STE) 4096 (0x1000) - 4118 (0x1016)
Table 61. 4U library SCSI element types and element addresses
Element Type Element Address Range
Media Transport (Accessor) Element (MTE) 1 (0x01)
I/O Station Elements (IEE) 16 (0x10), 17 (0x11), 18 (0x12)
Data Transfer (Drives) Elements (DTE) 256 (0x100), 257 (0x101), 258 (0x102, 259 (0x103)
Storage Elements (STE) 4096 (0x1000) - 4140 (0x102C)
2U library I/O slot, storage slots, drive slot element addresses, and
physical locations
For an overview of library partitioning and element addressing, see “Library partitioning and element
addressing” on page 287.
The table contains the physical location and SCSI element address (decimal and hexadecimal) of the I/O
slot, storage slots, and drive slot in the 2U library that is configured with one drive and one logical
partition. If a second drive were installed, it would be at address 257 (0x101).
With two drives that are installed, the library is configured as one partition (with two drives) or as two
partitions (with one drive per partition).
When configured with two drives and one logical partition, the Element Address assignments are as
follows: DTE assignments
v Drive 1: 256 (0x100)
v Drive 2: 257 (0x101)
The STE assignments are as shown in Table 62 on page 286.
When configured with two drives and one logical partition, the Element Address assignments are as
follows:
DTE assignments
v Logical Library 1: Drive 1: 256 (0x100)
v Logical Library 2: Drive 2: 256 (0x100)
© Copyright IBM Corp. 2007, 2018 285
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