Dot Hill Systems SANnet II 200 User manual

SANnet II 200 Fibre Channel Array
Quick Installation Guide
March 2005
83-00002625, Revision B

Copyright
Copyright 2005 Dot Hill Systems Corp. All rights reserved. No part of this publication may be reproduced,
stored in a retrieval system, translated, transcribed, or transmitted, in any form or by any means – manual, electric,
electronic, electromechanical, chemical, optical, or otherwise – without prior explicit written permission of Dot Hill
Systems Corp., 6305 El Camino Real, P.O. Box 9000, Carlsbad, CA., 92009-1606.
Trademarks
Dot Hill Systems, the Dot Hill logo, SANscape, SANnet, and SANpath are registered trademarks of Dot Hill
Systems Corp. All other trademarks and registered trademarks are proprietary to their respective owners.
Changes
The material in this document is for information only and is subject to change without notice. While reasonable
efforts have been made in the preparation of this document to assure its accuracy, Dot Hill Systems Corp., assumes
no liability resulting from errors or omissions in this document, or from the use of the information contained herein.
Dot Hill Systems Corp., reserves the right to make changes in the product design without reservation and without
notification to its users.

iii
Contents
1. Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–1
1.1 Refer to Your Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
1.2 Site Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–2
1.3 Unpacking the Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–2
1.4 Mounting Your FC Array in a Rack or Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
1.5 Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
1.6 What to Do Next . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
2. Connecting Your FC Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–1
2.1 SANnet II 200 FC Array Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
2.2 Connecting the Chassis to AC Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
2.3 Connecting the Chassis to DC Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
2.4 Cabling to Expansion Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–5
2.5 Setting Loop IDs on Expansion Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
2.6 Powering Up and Checking LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10
2.7 Reviewing Channels, Ports, and SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
2.7.1 Drive Port Connectivity in a Dual-Controller Array . . . . . . . . . . . . . . 2–12
2.7.1.1 SANnet II 200 FC Array Drive Ports . . . . . . . . . . . . . . . . 2–12
2.7.2 Host Port Connectivity in a Dual-Controller Array . . . . . . . . . . . . . . 2–12
2.7.2.1 SANnet II 200 FC Array Host Ports . . . . . . . . . . . . . . . . . 2–13
2.7.3 Default SFP Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–13
2.7.4 Changing Your SFP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 2–15
2.8 Establishing Communications With An Array . . . . . . . . . . . . . . . . . . . . . . . . . 2–16
2.9 Configuring a Host COM Port to Connect to a RAID Array . . . . . . . . . . . . . . 2–17
2.10 Manually Setting a Static IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17

iv SANnet II 200 FC Array Quick Installation Guide • March 2005
2.11 Setting Up Out-of-Band Management Over Ethernet . . . . . . . . . . . . . . . . . .2–18
2.12 Scaling a SANnet II 200 FC Array Into a High-Capacity Configuration . . . . .2–20
2.13 Adding an Expansion Unit to an Existing RAID Array . . . . . . . . . . . . . . . . . .2–21
2.14 Connecting Ports to Hosts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–21
2.15 Power-On Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–22
2.16 Powering Off the Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–23

1-1
CHAPTER 1
Getting Started
This guide provides basic instructions on how to unpack and connect your SANnet II
200 Fibre Channel (FC) array.
Figure 1-1 SANnet II 200 FC Array (Front View)
This chapter includes the following topics:
■“Refer to Your Release Notes” on page 1-2
■“Site Planning” on page 1-2
■“Unpacking the Array” on page 1-2
■“Mounting Your FC Array in a Rack or Cabinet” on page 1-3
■“Related Documentation” on page 1-3
■“What to Do Next” on page 1-3

1-2 SANnet II 200 FC Array Quick Installation Guide • March 2005
1.1 Refer to Your Release Notes
Refer to the SANnet II 200 FC Array Release Notes to see late-breaking information
including required patches and supported hardware and software. The release notes and
other documentation for this product are available online at:
http://www.dothill.com/manuals
1.2 Site Planning
Refer to the SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and
Service Manual to see detailed information about preinstallation site planning. Fill out
the preinstallation worksheet before you unpack and set up your SANnet II 200 FC
array.
1.3 Unpacking the Array
Follow these guidelines for unpacking the equipment.
Caution – Always use two people to remove the unit from its container, to avoid
personal injury or damage to the equipment during installation. This unit weighs
approximately 60 pounds (27 kg).
1. Select a suitable area for unpacking.
2. Store all packing material and boxes for possible equipment returns.
3. Check the Contents Sheet in your product package.
The Contents Sheet summarizes the standard contents for your product.
4. Compare the packing slip and the list of parts with the items you received.
If the list of parts on your packing slip does not match the items you received, or any
items appear damaged, immediately notify your carrier agent and the supplier who
prepared your shipment.
5. Carefully examine the cables provided in the package.
If any cable appears to be damaged, contact the Technical Service department for an
immediate replacement.
6. To complete the installation, you must provide a minimum of one fiber-optic cable per
host to connect a host to a RAID array. Two fiber-optic cables are required for a
redundant path configuration.
To obtain qualified cables, consult your Dot Hill sales representative.

Chapter 1 Getting Started 1-3
1.4 Mounting Your FC Array in a Rack or Cabinet
To physically mount your array, follow the instructions that came with the mounting
kit or those found in the SANnet II 200 Family Rack Installation Guide for 2U Arrays,
located on your CD and on the product web site.
1.5 Related Documentation
Your SANnet II 200 FC array package contains the manuals listed below in PDF
format. The book part number is used for the PDF filename assigned to each book.
1.6 What to Do Next
1. For cabling with standard configurations, see “Connecting Your FC Array” on page 2-
1.
For alternate configurations, refer to the SANnet II 200 FC and SATA Array Best
Practices Manual.
2. After cabling is complete, print and use the SANnet II 200 FC, SATA, and SATA SE
Array Installation, Operation, and Service Manual for first-time configuration and
basic troubleshooting.
3. Install optional software; or, use the firmware application to continue management of
the array, and use the software to manage and monitor your array as needed.
Title Part Number
SANnet II 200 FC, SATA, and SATA SE Array Release Notes 83-00003262
SANnet II 200 FC and SATA Array Best Practices Manual 83-00003263
SANnet II 200 FC, SATA, and SATA SE Array Installation,
Operation, and Service Manual
83-00003261
SANnet II Family RAID Firmware 4.1x User’s Guide 83-00003435
SANnet II Family Safety, Regulatory, and Compliance Manual 83-00002666
SANnet II Family FRU Installation Guide 83-00002708
SANnet II Family Rack Installation Guide for 2U Arrays 83-00002365

1-4 SANnet II 200 FC Array Quick Installation Guide • March 2005

2-1
CHAPTER 2
Connecting Your FC Array
This chapter describes procedures for cabling the SANnet II 200 FC array and for
connecting an array to power and to network devices.
The following topics are covered in this chapter:
■“SANnet II 200 FC Array Connections” on page 2-2
■“Connecting the Chassis to AC Power Outlets” on page 2-3
■“Connecting the Chassis to DC Power Outlets” on page 2-4
■“Cabling to Expansion Units” on page 2-5
■“Setting Loop IDs on Expansion Units” on page 2-7
■“Powering Up and Checking LEDs” on page 2-10
■“Reviewing Channels, Ports, and SFPs” on page 2-11
■“Drive Port Connectivity in a Dual-Controller Array” on page 2-12
■“Host Port Connectivity in a Dual-Controller Array” on page 2-12
■“Default SFP Placement” on page 2-13
■“Changing Your SFP Configuration” on page 2-15
■“Establishing Communications With An Array” on page 2-16
■“Configuring a Host COM Port to Connect to a RAID Array” on page 2-17
■“Manually Setting a Static IP Address” on page 2-17
■“Setting Up Out-of-Band Management Over Ethernet” on page 2-18
■“Scaling a SANnet II 200 FC Array Into a High-Capacity Configuration” on
page 2-20
■“Adding an Expansion Unit to an Existing RAID Array” on page 2-21
■“Connecting Ports to Hosts” on page 2-21
■“Power-On Sequence” on page 2-22
■“Powering Off the Array” on page 2-23
Before you connect the array to the network, position the array in the rack, cabinet, or
other location where it will be used.

2-2 SANnet II 200 FC Array Quick Installation Guide • March 2005
Caution – When positioning the array, do not block the air vents at the front or back
of the unit. Follow all safety precautions specified in the SANnet II Family Safety,
Regulatory, and Compliance Manual.
Caution – When you power off an array, wait five seconds before you power it back
on. If you power the array off and on too quickly, unexpected results can occur. For
more information, refer to the SANnet II 200 FC, SATA, and SATA SE Installation,
Operation, and Service Manual.
2.1 SANnet II 200 FC Array Connections
Figure 2-1 identifies the hardware connections on the back of a dual-controller SANnet
II 200 FC array.
Figure 2-1 Hardware Connections on the Back of a Dual-Controller SANnet II 200 FC Array
FC device connections
application/data servers and consoles
FC expansion units/FC arrays
FC devices Servers and consoles
Management
console

Chapter 2 Connecting Your FC Array 2-3
Management is in-band through fibre host connections and out-of-band through the
serial port and Ethernet port on the back of each controller.
2.2 Connecting the Chassis to AC Power Outlets
When you connect the AC power cords, install the two provided cord locks at the same
time. The AC cord locks are used to securely fasten the AC cable connectors.
Caution – If the array is connected to AC power sources not within the designated
90–135 or 180–264 VAC range, the unit might be damaged.
Note – To ensure power redundancy, be sure to connect the two power supply modules
to two separate circuits (for example, one commercial circuit and one UPS).
To connect the AC power cords, perform the following procedure.
1. Use a Phillips screwdriver to remove the screw and cylindrical standoff from one of
the two provided cord locks.
Set them aside for reassembly later.
2. Slide the cord lock over the AC power connector.
3. Hold the cylindrical standoff between the two screw holes on the flanges of the cord
lock.
4. Insert the screw into the first screw hole, through the standoff, and then into the
threaded screw hole on the other flange.
5. Tighten the screw with a screwdriver until the flanges bottom out on the cylindrical
standoff.
6. Push the power cord into the power supply receptacle until it is firmly seated.
7. Push the green ejector handle forward until it is seated against the power supply.
8. Turn the thumbscrew of the green ejector handle clockwise until it is finger-tight to
secure the handle and the cord lock.
Note – To ensure that a thumbscrew is finger-tight, tighten it with a screwdriver and
then loosen the thumbscrew counterclockwise a quarter turn.
9. Repeat Step 1 through Step 8 for the second cord lock and second power cable.

2-4 SANnet II 200 FC Array Quick Installation Guide • March 2005
Figure 2-2 Installing a Cord Lock
2.3 Connecting the Chassis to DC Power Outlets
Two DC power cords are packaged with each DC array. To connect the DC power
cords, perform the following procedure.
1. Check the DC cable part number and wire labels carefully before connecting the cable
to the source.
Table 2-1 DC Cable Wiring for Cable 35-00000148
Pin Number Voltage Color
A3 Return Red
A2 GND (Chassis Ground) Green/Yellow
A1 –48 VDC Black
1
3
2
4

Chapter 2 Connecting Your FC Array 2-5
2. Connect a DC power cable to the first power supply and to a power outlet.
Note – Use only the DC power cables provided with the array.
Caution – If the array is connected to DC power sources not within the designated –
48V DC (–36 VDC to –72 VDC) range, the unit might be damaged.
Note – To ensure power redundancy, be sure to connect the two power supply modules
to two separate circuits (for example, one commercial circuit and one UPS).
Note – To extend the length of the DC power cable as needed, strip the last 1/4 inch
of the cable, insert the stripped end into a provided Panduit tube, and crimp the tube.
3. Tighten the cable-locking screws to attach the cable securely to the power supply
power outlet.
4. Connect the second power cable to the second power supply and to a second power
outlet. Tighten the cable-locking screws.
If one power supply fails, the second power supply automatically takes the full load.
2.4 Cabling to Expansion Units
Caution – When connecting expansion units to a RAID array, always connect channel
2 of the RAID array to the A channel of the expansion units, and connect channel 3 of
the RAID array to the B channel of the expansion units. Otherwise, unexpected
behavior might occur.
Several cabling configurations are possible, each with its own advantages and
disadvantages. Refer to the SANnet II 200 FC and SATA Array Best Practices Manual
for more information about the suitability of various configurations for various
application requirements, as well as for information about high-capacity
configurations.
Table 2-2 DC Cable Wiring for Cable 35-00000156
Pin Number Voltage Color
A3 L+ Red
A2 GND (Chassis Ground) Green/Yellow
A1 L– White

2-6 SANnet II 200 FC Array Quick Installation Guide • March 2005
The maximum number of expansion units attached to a RAID array are:
■up to eight SANnet II 200 FC expansion units attached to a SANnet II 200 FC array
■up to five SANnet II 200 FC expansion units and SANnet II 200 SATA expansion
units, in any combination, attached to a SANnet II 200 FC array
These configurations are described in the SANnet II 200 FC and SATA Array Best
Practices Manual.
The example in Figure 2-3 shows a RAID array connected to two expansion units.
Connections to expansion units are designed to keep all A drive ports on the same loop
and all B drive ports on the same loop.
Caution – To avoid drive assignment conflicts, make sure that each connected array
and expansion unit uses a different loop ID, as described in “Setting Loop IDs on
Expansion Units” on page 2-7.
In the RAID array, two of the unused SFP host ports can be used to provide redundant
pathing to the two servers, and the remaining unused SFP host ports can be connected
to two more servers in a redundant configuration.
Similarly, you can connect expansion units to other channels (which are separate from
channels 2 and 3) if you configure them as drive channels. For details, refer to the
SANnet II Family RAID Firmware User’s Guide.

Chapter 2 Connecting Your FC Array 2-7
Figure 2-3 SANnet II 200 FC Array Attached to Two Hosts and Two Expansion
Units
2.5 Setting Loop IDs on Expansion Units
When an expansion unit is attached to a RAID array, unique, hard-assigned loop IDs
are assigned to each expansion unit drive. A loop ID is the decimal version of an
arbitrated loop physical address (AL_PA). The lowest number loop ID is the lowest
priority address on the loop.
RAID array
Expansion unit 1
Expansion unit 2
Loop A (top drive ports) Loop B (bottom drive ports)
Cable to drive
Cable to host

2-8 SANnet II 200 FC Array Quick Installation Guide • March 2005
On the left front side of an expansion unit, an ID switch is used to set the loop IDs for
the disk drives to a different range of values so that the same IDs are not repeated by
RAID units and expansion units on the same loop.
Setting the loop ID on an array or expansion unit requires dropping the front bezel out
of the way and removing the small vertical plastic cap on the left side of the bezel that
covers the left rackmount tab. Rackmount tabs are also referred to as “ears.”
Figure 2-4 Front Bezel and Front Bezel Locks of an Array
1. Use the provided key to unlock both bezel locks.
2. Grasp the front bezel cover on both sides and pull it forward and then down.
3. Remove the plastic cap from the left ear of the array.
a. Squeeze both sides of the cap at the top and the bottom.
b. Turn the cap toward the center of the array until it disengages and pull it free.
Caution – To avoid damage to the cap, do not pull the cap forward directly or pull
from only its top or bottom.
The ID switch is exposed when you remove the plastic cap.
Figure 2-5 ID Switch Located on the Left Front Side of Arrays and Expansion
Units
4. Press the upper or lower switch button to change the ID number so that each connected
RAID array and expansion unit uses a different loop ID.
Bezel locks
Plastic “ear” cap covering loop ID switch
Press to change the ID number

Chapter 2 Connecting Your FC Array 2-9
Caution – The loop ID should only be changed while the expansion unit is powered
off or not in use. After changing the loop ID, a power cycle is required to make the ID
switch change take effect. Failure to cycle the power following a loop ID change can
lead to unexpected results.
The default ID switch setting for RAID arrays is 0. The default range of available
drive IDs for RAID arrays is 0 to 11 for 12 drives (the IDs 12–15 are ignored). The
default ID switch setting for expansion units and JBODs is 1.
Ensure that the loop IDs of expansion units do not duplicate the loop IDs of other
connected expansion units or RAID arrays.
The ID switch offers eight ID ranges. Each range contains 16 IDs (the last four IDs in
each range are ignored). These ranges are shown in Table 2-3.
For an example of properly configured loop IDs, consider the configurations shown in
Figure 2-3. You must make sure the RAID array and each of the two expansion units
have been assigned different loop IDs. Set the loop ID switches so that the RAID array
is assigned loop ID 0, expansion unit 1 has loop ID 1, and expansion unit 2 has loop
ID 2. The range of IDs assigned to the drives is shown in Table 2-4.
Table 2-3 ID Switch Settings for Expansion Units
ID Switch Setting Range of IDs
0 0–15
1 16–31
2 32–47
3 48–63
4 64–79
5 80–95
6 96–111
7 112–125
Table 2-4 Sample Array and Expansion Units With Different Loop IDs and Drive
IDs
Fibre Channel
Device
Loop ID Switch
Setting
Range of
Drive IDs
RAID array 0 0–15
Expansion unit 1 1 16–31
Expansion unit 2 2 32–47

2-10 SANnet II 200 FC Array Quick Installation Guide • March 2005
5. Prepare the plastic left ear cap for replacement by aligning the inside round notches of
the cap with the round cylindrical posts (ball studs) on the ear.
6. Push the top and bottom of the ear cap onto the ear, pressing in on the top side toward
the center of the array first.
7. Continue pushing the top and bottom of the ear cap onto the ear, pressing on the side
toward the outside of the array.
Do not use force when placing a cap on an ear.
8. Lift the bezel into position and press it onto the front of the chassis until it is flush with
the front.
9. Use the key to lock both bezel locks.
2.6 Powering Up and Checking LEDs
Perform the initial check of the array according to the following procedure.
1. Connect two AC or DC power cables to the power and fan modules on the back of the
array.
2. Power on the array by turning on each power switch.
3. Check for the following LED activity:
All front-panel LEDs turn solid green to indicate good operation.
Note – Whenever media scan is running on a drive, its front-panel LED flashes green
and continues to flash as long as media scan is running. Media scan must be started
from the firmware application. If the host is restarted, then media can must be
manually restarted. For more information, refer to the SANnet II Family RAID
Firmware User’s Guide.

Chapter 2 Connecting Your FC Array 2-11
Figure 2-6 Front Panel of the SANnet II 200 FC Array With LEDs Displayed
For further information about your array’s LEDs, refer to the SANnet II 200 FC, SATA,
and SATA SE Array Installation, Operation, and Service Manual.
2.7 Reviewing Channels, Ports, and SFPs
I/O controller modules have ports that accept small form-factor pluggable (SFP)
transceivers. These ports are labeled FC0 through FC5, to indicate channels 0 through
5. Default configurations do not include an SFP connector in every SFP port. To add or
change SFP connectors, see to “Changing Your SFP Configuration” on page 2-15.
The channels and associated ports for the SANnet II 200 FC arrays are summarized in
Table 2-5.
Table 2-5 Number of Ports in SANnet II 200 FC Arrays
Item SANnet II 200 FC Array
Total number of ports 6
Channel 0 1 FC0 host or drive port; default: host port
Channel 1 1 FC1 host or drive port; default: host port
Channel 2 1
1. Channel 2 drive ports connect to drive loop A ports on expansion units.
1 FC2 dedicated drive port
Channel 3 2
2. Channel 3 drive ports connect to drive loop B ports on expansion units.
1 FC3 dedicated drive port
Channel 4 1 FC4 host or drive port; default: host port
Channel 5 1 FC5 host or drive port; default: host port
Disk 0
Disk 1
Disk 2
Disk 3
Disk 4
Disk 5
Disk 6
Disk 7
Disk 8
Disk 9
Disk 10
Disk 11

2-12 SANnet II 200 FC Array Quick Installation Guide • March 2005
2.7.1 Drive Port Connectivity in a Dual-Controller Array
Drive channels connect to the internal drives in the array and can also connect to
drives in external expansion units. The SANnet II 200 FC array has a drive channel
assigned to two ports on each I/O controller module. Each drive channel is a pair of
ports on a single I/O controller module. In a dual-controller configuration, the top
controller has two ports for drive channel 2, and the lower I/O controller module has
two ports for drive channel 3.
2.7.1.1 SANnet II 200 FC Array Drive Ports
Configured for redundancy, each controller in a dual-controller RAID array has two
adjacent dedicated drive channels on one loop to load balance I/O operations (see
Figure 2-7). Each drive channel has two SFP ports that can be connected to expansion
units. Drive channels 2 and 3 access all the disk drives and are interconnected to load-
balance I/O operations. Each drive channel has an upper and lower port.
Figure 2-7 Dedicated Drive Channels 2 on the Upper Controller and 3 on the Lower Controller in a
Dual-Controller SANnet II 200 FC Array
The I/O controller module in slot A (the upper slot) houses drive channel 2, which
connects to the 12 internal disk drives through their A ports. The I/O controller module
in slot B (the lower slot) houses drive channel 3, which connects to the 12 internal disk
drives through their B ports.
2.7.2 Host Port Connectivity in a Dual-Controller Array
Host channels connect to host computers either directly or through storage switches or
other devices. In a default dual-controller RAID configuration, each controller has four
host channels, channels 0, 1, 4, and 5. Port bypass circuits connect each pair of host
SFP ports on a host channel; as a result, each host channel accesses both controllers.
In a default dual-controller RAID configuration, each controller has four host ports.
Each port connects to one host channel, channels 0, 1, 4, and 5 (see Figure 2-8). All
four host channels support 1-Gbit or 2-Gbit data transfer speeds. Each host channel has
un upper port and a lower port.
Two drive ports on channel 2
Two ports on channel 3