Sun Microsystems StorEdge 3000 Series, Installation, Operation And Service Manual

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Chapter 5 First-Time Configuration 5-39
For Solaris operating environment configurations, use the values in the following
table.
* These settings are also valid for all logical drives under 253 GBytes. After settings
are changed, they apply to all logical drives in the chassis.
To revise the Cylinder and Head settings, perform the following steps.
1. Choose “view and edit Configuration parameters
→
Host-Side SCSI Parameters
→
Host Cylinder/Head/Sector Mapping Configuration
→
Sector Ranges - Variable
→
255 Sectors
→
Head Ranges - Variable.”
2. Specify “255 Heads.”
3. Choose “Cylinder Ranges - Variable
→
< 65536 Cylinders.”
Refer to Sun StorEdge 3000 Family RAID Firmware User’s Guide for more information
about firmware commands used with logical drives.
5.5.11 Changing a Logical Drive Controller Assignment
(Optional)
By default, logical drives are automatically assigned to the primary controller. If you
assign half the drives to the secondary controller, the maximum speed and
performance is somewhat improved due to the redistribution of the traffic.
TABLE 5-9
Cylinder and Head Mapping for the Solaris Operating Environment
Logical Drive Capacity Cylinder Head Sector
< 253 GB variable (default) variable (default) variable (default)
253 GB - 1 TB < 65536 Cylinders * 255 * variable (default)