Dot Hill Systems II 200 FC - Manual (Page 91)

Chapter 5 Configuration Overview 5-9
Perform the following steps to set up a typical point-to-point SAN configuration based
on Figure 5-1 and Figure 5-2.
1. Check the position of installed SFPs. Move them as necessary to support the
connections needed.
2. Connect expansion units, if needed.
3. Create at least two logical drives (logical drive 0 and logical drive 1) and configure
spare drives.
Leave half of the logical drives assigned to the primary controller (default assignment).
Assign the other half of the logical drives to the secondary controller to load-balance
the I/O.
4. Create up to 32 partitions (LUNs) in each logical drive.
5. Change the Fibre Connection Option to Point to point only (view and edit
Configuration parameters → Host-side SCSI Parameters → Fibre Connections
Option).
6. For ease of use in configuring LUNs, change the host IDs on the four channels to the
following assignments:
Channel 0: PID 40 (assigned to the primary controller)
Channel 1: PID 41 (assigned to the primary controller)
Channel 4: SID 50 (assigned to the secondary controller)
Channel 5: SID 51 (assigned to the secondary controller)
Caution – Do not use the command, Loop preferred, otherwise point to point. This
command is reserved for special use and should be used only if directed by technical
support.
Table 5-1 Example Point-to-Point Configuration With Two Logical Drives in a Dual-
Controller Array
Task
Logical
Drive LUN
IDs Channel
Number Primary ID
Number Secondary
ID Number
Map 32 partitions of LG 0 to
CH 0 LG 0 0-31 0 40 N/A
Duplicate-map 32 partitions of
LG 0 to CH 1 LG 0 0-31 1 41 N/A
Map 32 partitions of LG 1 to
CH 4 LG 1 0-31 4 N/A 50
Duplicate-map 32 partitions of
LG 1 to CH 5 LG 1 0-31 5 N/A 51