Adaptec 2074700-R User Guide - Page 211

C.2.4, Configuring an FC-Enabled RAID Controller for Optimal, Performance

Page 211 highlights

Fibre Channel Features Refer to Section 11.4.2 for detailed information navigating the (SCSI) I/O Processors. As indicated in this section, double-clicking the (SCSI) I/O processor icon displays channel information about that processor. When doing the same on an FC I/O processor, note the only difference is the "TYPE" field changed to "FC" (see Figure C-5 for details). All other parameters remain the same for FC I/O processor(s) and FC devices. Figure C-5. ICP RAID Navigator Channel Information C.2.4 Configuring an FC-Enabled RAID Controller for Optimal Performance Correct configuration of your controller is crucial if attempting to attain the highest possible performance of the controllers. These are some of the areas that should be checked when considering optimal performance of your RAID controller: • Ensure that your FC-AL loops are initialized. See the section of your FC-enabled ICP RAID Controller's Hardware Guide entitled "Configuring Single and Dual Loops" to ensure that your loop is configured correctly. Also see Section C.1, Boot BIOS Message to ensure that your loops are initialized. • Ensure that your controller is running at a 2G Link Speed. To check, use one of these methods: - Enter ICPCON. Select "Save Information." Under "Controller Information," locate the field "Link Speed [MBaud]." This field should include "2125" if your 2G link is working correctly. or - Verify this information in the "Fibre Channel Information" window (see Section C.2.2). • Use a Dual-Loop configuration. See the section of your FC-enabled ICP RAID Controller's Hardware Guide entitled "FC-AL Single and Dual Loop Configurations" for details on how dual loops improve performance. • Ensure your controller is inserted in a 64-bit/66MHz PCI slot. Software Installation and User's Guide 211

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Software Installation and User’s Guide
211
Fibre Channel Features
Refer to
Section 11.4.2
for detailed information navigating the (SCSI) I/O Processors. As
indicated in this section, double-clicking the (SCSI) I/O processor icon displays channel
information about that processor. When doing the same on an FC I/O processor, note the
only difference is the “TYPE” field changed to “FC” (see
Figure C-5
for details). All
other parameters remain the same for FC I/O processor(s) and FC devices.
C.2.4
Configuring an FC-Enabled RAID Controller for Optimal
Performance
Correct configuration of your controller is crucial if attempting to attain the highest
possible performance of the controllers. These are some of the areas that should be
checked when considering optimal performance of your RAID controller:
Ensure that your FC-AL loops are initialized. See the section of your FC-enabled ICP
RAID Controller’s
Hardware Guide
entitled “Configuring Single and Dual Loops” to
ensure that your loop is configured correctly. Also see
Section C.1,
Boot BIOS Message
to ensure that your loops are initialized.
Ensure that your controller is running at a 2G Link Speed. To check, use one of these
methods:
— Enter ICPCON. Select “Save Information.” Under “Controller Information,”
locate the field “Link Speed [MBaud].” This field should include “2125” if your
2G link is working correctly.
or
— Verify this information in the “Fibre Channel Information” window (see
Section C.2.2
).
Use a Dual-Loop configuration. See the section of your FC-enabled ICP RAID
Controller’s
Hardware Guide
entitled “FC-AL Single and Dual Loop Configurations”
for details on how dual loops improve performance.
Ensure your controller is inserted in a 64-bit/66MHz PCI slot.
Figure C-5. ICP RAID Navigator Channel Information