Configuration Of A Three - Partition System; Configuration Of A Four - Partition System; Scsi Element Addressing - Dell PowerVault TL2000 User Manual

Drive 3
Element Address
256
Drive 2
Element Address
256
Drive 1
Element Address
256
Figure 3-3. Configuration of a three - partition system
Configuration of a 4 - Partition System
A four partition system must have four drives. Each partition contains one drive
and one magazine.
When configured with four logical partitions, the Element Address assignments
will be as follows: DTE assignments will be as shown in Figure 3-4.
STE assignments
v Logical Library 1: Slot 1 through slot 9 4096 (x1000) through 4104 (0x1008)
v Logical Library 2: Slot 10 through slot 21 4096 (x1000) through 4107 (0x100B)
v Logical Library 3: Slot 22 through slot 33 4096 (x1000) through 4107 (0x100B)
v Logical Library 4: Slot 34 through slot 45 4096 (x1000) through 4107 (0x100B)
Figure 3-4. Configuration of a four - partition system

SCSI Element Addressing

Every logical library starts at the first drive slot with the current assigned element
start address (default value 256). It will be incremented from the bottom to the top
slots for every drive slot. There is one exception to this addressing scheme to
accommodate libraries currently in the field. A 4U library containing only full
height drives will continue to have the addresses assignments 256 and 257, thus
causing no interruptions to their operation. Drive slots will still be incremented by
1 for each drive slot position.
Note: Exchanging drives with different form factors will result in the library
Drive 4
Element Address
257
Drive 3
Element Address
256
Drive 2
Element Address
256
Drive 1
Element Address
256
Drive 4
Element Address
256
Magazine
Drive 3
Element Address
256
Drive 2
Element Address
Magazine
256
Drive 1
Element Address
256
needing to be reconfigured.
Magazine
2
Magazine
1
Front side
Magazine
2 4
Magazine
1 3
Front side
Chapter 3. Installation Planning
Magazine
4
Magazine
3
3-5