External RAID Controller & Subsystem
Revision Firmware Version
 Copyright This Edition First Published
Disclaimer
 Iii
RMA Policy
Supported Models
 Table of Contents
 LCD Screen Messages
LCD Keypad Operation
 Viewing and Editing Logical Drives and Drive Members
Viewing and Editing Scsi Drives
 Terminal Screen Messages
Terminal Operation
Vii
 Fibre Operation
Viii
 Advanced Configuration
Multi-Host Access Control LUN Filtering
Host-side and Drive-side Scsi Parameters
 Redundant Controller
10-1
10-14
10-19
 Record of Settings
Array Expansion
 Appendix C System Functions Upgrading Firmware
Appendix D Event Messages
Xii
 Functional Table of Contents
 Xiv
7.8
 Chapter Advanced Configurations
Chapter Fibre Operation
 Chapter Redundant Controller Configuration
Chapter Array Expansion
Xvi
 Appendix C Controller Maintenance
Xvii
 Xviii
Chapter
 Optimization Setting
Xix
 About This Manual
 Revision History
Xxi
 Xxii
 Logical Volume
What is a logical volume?
Logical Drive
Chapter
 RAID Levels
What are the RAID levels?
RAID Levels
Infortrend
 LogicalDrive
 RAID 0+1
RAID 0+1
 Disk Striping with Dedicated Parity Disk
 Spare Drives
Global and Local Spare Drives
Local
Spare
 12 Mixing Local and Global Spares
 Identifying Drives
Flash Selected Scsi Drive
Flash All Scsi Drives
Flash All but Selected Drives
 Rebuild
Automatic Rebuild and Manual Rebuild
 Manual Rebuild
14 Manual Rebuild
 Concurrent Rebuild in RAID 0+1
 Logical Volume Multi-Level RAID
15 Logical Volume
 16 Logical Drive Composed of 24 Drives
 Spare drives assigned to a logical volume?
18 Logical Volume with Drives on Different Channels
 Limitations
 Different write policies within a logical volume?
RAID expansion with logical volume?
Different controller settings using logical volume?
 Logical volume with logical drives of different levels?
Multi-level RAID systems
 How many physical drives do you have?
How many drives on each drive channel?
RAID Planning
 Dual loop, hub, or switch?
What kind of host application?
 Optimization Mode
What RAID level?
 Any spare drives?
Limitations?
 Array Configuration Process
Starting a RAID System
 Infortrend
 1 I/O Channel, Scsi ID, and LUN
Grouping Drives into an Array
 Physical locations of drive members
 Making Arrays Available to Hosts
Mapping Partitions to Host ID/LUNs
 Controller Parameter Settings
Tunable Parameters
 Optimization Mode
 Array Configuration
 Following are guidelines on using the serial port
RS-232C Serial Port
Out-of-Band via Serial Port and Ethernet
 Configuring RS-232C Connection via Front Panel
 Keys used when operating via the terminal are as follows
Connecting Terminal
Starting RS-232C Terminal Emulation
 What Is the Disk Reserved Space?
Out-of-Band via Ethernet
 Connecting Ethernet Port
Other Concerns
Requirements
 Configuring the Controller
Use a Terminal Emulator to Begin Configuration
 Assign an IP Address to Ethernet Port
 Starting the Manager
 NPC Onboard
Snmptrap
 Snmptrap section
 Quick Installation Screen
Initial Screen
LCD Screen Messages
 Logical Drive Status
Logical Drive
RAID level
Drive numbers
 Logical Volume Status
Logical Volume Status
 Scsi Drive Status
 Channel Mode
Default Scsi Bus Sync Clock
Scsi Channel Status
Primary Controller Scsi ID Mapping
 Controller Voltage and Temperature
 UPS Power Failure Detected Press 2 Seconds to Clear Events
Cache Dirty Percentage
View and Edit Event Logs
View and Edit Event Logs
 Power on RAID Enclosure
Caching Parameters
Optimization Modes
Front Panel Operation
 Optimization Mode and Stripe Size
Database and Transaction-based Applications
 Write-Back/Write-Through Cache Enable/Disable
Write-Back Cache Enabled Disable Write
Optimization for Random or Sequential I/O
 Infortrend
 View Connected Drives
View and Edit Scsi Drives
=2 I=0 1010MB New DRV Seagate
View Drive Information
 Creating a Logical Drive
Choosing a RAID Level
Choosing Member Drives
Logical Drive Preferences
 Initialization Mode
Maximum Drive Capacity
Spare Drive Assignments
Disk Reserved Space
 Stripe size Default ?
On-Line Mode
Stripe Size
Beginning Initialization
 Off-Line Mode
 Creating a Logical Volume
 Logical Volume Assignment
 Partitioning a Logical Drive/Logical Volume
 Mapping a Logical Volume/Logical Drive to Host LUN
View Edit Host Luns
 Assigning Spare Drive and Rebuild Settings
Adding a Local Spare Drive
MAP to LV=0 PRT=0?
View and Edit Scsi Drives =2 I=4 1010MB
 Rebuild Settings
Adding a Global Spare Drive
Add Global Spare Drive Add Global Spare Drive Successful
 Viewing and Editing Logical Drives and Drive Members
Deleting a Logical Drive
 Deleting a Partition of a Logical Drive
Drive Space Allocated to the Last Partition
 Assigning a Name to a Logical Drive
Rebuilding a Logical Drive
View and Edit Logical Drives LG0 RAID5 DRV=3 2012MB FL SB=0
Rebuild Logical Drive Drive? Rebuilding 25% Please Wait
 Regenerating Logical Drive Parity
LG0 RAID5 DRV=3 2012MB RB SB=0 Rebuild Progress
 Media Scan
View and Edit Logical Drives LG0 RAID5 DRV=3 4095MB GD SB=0
 Write Policy
 Pass-through Scsi Commands
Viewing and Editing Host LUNs
Viewing and Deleting LUN Mappings
 Viewing and Editing Scsi Drives
Scanning New Scsi Drive
Scan Channel=1 ID=1 Scan Fail
 Identifying a Drive
=1 I=1 Absent
 Redefining Channel Mode
Viewing and Editing Scsi Channels
Deleting Spare Drive Global / Local Spare Drive
 Setting a Scsi Channel’s ID Host Channel Viewing IDs
Adding a Channel ID
Add Channel
Primary Controller ? Add CHL=0 ID=2 Primary Ctlr ?
 Setting a Scsi Channel’s Primary ID Drive Channel
Deleting a Channel ID
Delete Channel
Delete ID=2 Primary Ctlr ?
 Setting a Scsi Channel’s Secondary ID Drive Channel
Setting Channel Bus Terminator
 Setting Transfer Speed
Scsi Terminator Enabled CHL=0 Disable Terminator ?
 Setting Transfer Width
Viewing and Editing Scsi Target Drive Channel
View and Edit Scsi Channels CH1=Drive PID=7
View and Edit Scsi Target
 Slot Number
Maximum Synchronous Transfer Clock
Maximum Transfer Width
 Disconnecting Support
Parity Check
Maximum Tag Count
Max Xfer Narrow Only?
 Restore to Default Setting
 Change Password
Changing Password
System Functions
Mute Beeper
 Disabling Password
Reset Controller
Shutdown Controller
 Restore Nvram from Disks
ShutdownComplete Reset Ctlr?
Controller Maintenance Save Nvram To Disks
Restore Nvram From Disks
 Password Validation Timeout
Controller Parameters
Controller Name
LCD Title Display Controller Name
 Controller Date and Time
Time Zone
Time Zone
 Date and Time
GMT +0800
Date and Time MMDDhhmmYYYY
 Scsi Drive Utilities
Scsi Drive Low-level Format
View and Edit Scsi Drives =1 I=1 8683MB
Scsi Drives Utilities Drive Read/Write Test
 Scsi Drive Read/Write Test
 Transfer Rate Indicator
PC Graphic Ansi Mode
Terminal VT-100 Mode
Cursor Bar
 Quick Installation
Main Menu
 Terminal Screen Messages
 SizeMB
Status
 Column C
Name
 Slot
Chl
Size MB
Speed
 Scsi Channel’s Status
PID
 Term
CurSynClk
CurWid
 Controller voltage and temperature monitoring
 Viewing Event Logs on the Screen
 Terminal Operation
Terminal Operation
 Limitations
 Optimization Mode and Stripe Size
 Viewing the Connected Drives
 Creating a Logical Drive
 Choosing a RAID Level
 Assign Spare Drives
Logical Drive Assignments
 Initialization Mode
 Terminal Operation
 Creating a Logical Volume
 Partitioning a Logical Drive/Logical Volume
 Infortrend
 Mapping a Logical Volume to Host LUN
 Infortrend
 Assigning Spare Drive, Rebuild Settings
Adding Local Spare Drive
 Viewing and Editing Logical Drive and Drive Members
 1000MB
 Rebuilding a Logical Drive
 Applies to RAID1, 3,
 Iteration Count
 Viewing or Deleting LUN Mappings
Edit Host-ID/WWN Name List
 Scanning New Drive
 Slot Number Drive Entry
Identifying Drive
 Terminal Operation
 Viewing and Editing Scsi Channels
 Viewing and Editing Scsi IDs Host Channel
 Setting a Primary Controller’s Scsi ID Drive Channel
Deleting an ID
 Setting a Secondary Controller’s Scsi ID Drive Channel
Setting Channel Terminator
Setting a Transfer Speed
Drive Channel
 Setting the Transfer Width
Host Channel
 Viewing and Editing Scsi Target / Drive Channel
 Maximum Synchronous Transfer Clock
 Data Rate
 Infortrend
 System Functions
 Changing the Password
Setting a New Password
 Disabling the Password
 Controller Parameters
 Saving Nvram to Disks
 Password Validation Timeout
 Terminal Operation
 Set Controller Date and Time
 Drive Information
Scsi Drive Utilities
View Drive Information
 Scsi Drive Low-level Format
 Scsi Drive Read/Write Test
 Overview
Fibre Operation
 Major Concerns
 Fibre Operation
 Supported Features
Fibre Chip
Multiple Target IDs
 Drive IDs
In-band Fibre and S.E.S. Support
 Configuration Host and Drive Parameters
Channel Mode
Primary and Secondary Controller IDs
 Redundant Controller Cache Coherency Channel RCC Channel
View Channel WWN
Limitation
 View Device Port Name List Wwpn
View and Edit Fibre Drive
User-Assigned ID Scan Scsi Drive
 View and Edit Host-Side Parameters
 Fibre Channel Connection Type
View and Edit Drive-Side Parameters Drive-Side Dual Loop
 Controller Unique Identifier
 Controller Communications over Fibre Loops
 Fibre Operation
 Multi-Host Access Control LUN Filtering
Storage Pool
 Creating LUN Masks
Host-LUN Mapping
 WWN Name List
 Logical Unit to Host LUN Mapping
 Infortrend
 LUN Mask ID Range Configuration
Filter Type Include or Exclude
 Sample Configuration
Access Mode Read Only or Read/Write
 Configuration Procedure
 Infortrend
 Fault Prevention
Advanced Configurations
A.R.T
 Clone Failing Drive
Replace after Clone
 Perpetual Clone
 Advanced Configurations
 Introduction
 Disable
Detect Only
Perpetual Clone
Clone + Replace
 Configuration Procedure
Enabling the S.M.A.R.T. Feature
Examining Whether Your Drives Support S.M.A.R.T
 Using S.M.A.R.T. Functions
Detect Only Setting
 Detect, Perpetual Clone Setting
 Detect, Clone+Replace Function
 Host-side and Drive-side Scsi Parameters
Host-side Scsi Parameters
Foreword Scsi Channel, Scsi ID and LUN
 Number of Tags Reserved for each Host-LUN Connection
 Maximum Queued I/O Count
LUNs per Host Scsi ID
LUN Applicability
 What is In-band?
Peripheral Device Type
In-band Scsi or Fibre
 Peripheral Device Type Parameters
SCO
 Peripheral Device Type Settings
Device Type Setting
Cylinder/Head/Sector Mapping
Cylinder/Head/Sector Mapping under Sun Solaris
 Configuring Sector Ranges/Head Ranges/Cylinder Ranges
 Drive-side Parameters
Scsi Motor Spin-Up
 Scsi Reset at Power-Up
 Disk Access Delay Time
Scsi I/O Timeout
 Maximum Tag Count Tag Command Queuing
 Detection of Drive Hot Swap Followed by Auto Rebuild
SAF-TE and S.E.S. Enclosure Monitoring
Periodic Drive Check Time
 Idle Drive Failure Detection
Periodic Auto-Detect Failure Drive Swap Check Time
 Advanced Configurations
 Monitoring and Safety Mechanisms
Dynamic Switch Write-Policy
View Peripheral Device Status
 Controller Auto-Shutdown Event Trigger Option
 Disk Array Parameters
Rebuild Priority
 Verification on Writes
 Operation Theory
Redundant Controller 10-1
 Setup Flowchart
Considerations Related to Physical Connection
SCSI-Based Controllers
10-2 Infortrend
 Fibre-Based Controllers
Redundant Controller 10-3
 Grouping Hard Drives and LUN Mapping
10-4 Infortrend
 Logical Drive, Logical Volume, and Logical Partitions
Redundant Controller 10-5
 System Drive Mapping
Primary and Secondary IDs
10-6 Infortrend
 Mapping
Redundant Controller 10-7
 Fault-Tolerance
What Is a Redundant Controller Configuration?
10-8 Infortrend
 How does Failover and Failback Work? Channel Bus
Redundant Controller 10-9
 ID Mapping Status Normal Operation
ID Mapping Status Controller Failed
10-10 Infortrend
 Active-to-Active Configuration
Controller Failover and Failback
Replacing a Failed Unit
Auto-Failback
 Traffic Distribution and Failover Process
Redundant Controller 10-12
 Symptoms
Controller Failure
Connection
10-13 Infortrend
 Preparing Controllers
Requirements
Cabling Requirements
Controller RCC cable
 Controller Settings
Redundant Controller 10-15
 Configurable Parameters
Limitations
Primary or Secondary
10-16 Infortrend
 Active-to-Standby Configuration
Battery Support
Cache Synchronization
Redundant Controller 10-17
 10-18 Infortrend
 Configuration
Redundant Controller 10-19
 Redundant Configuration Using Automatic Setting
Enable Redundant Controller
Autoconfig
Via Front Panel Keypad
 Redundant Configuration Using Manual Setting
View and Edit Peripheral Dev
Redundant Controller 10-21
 RC connecting ENT to cancel
Starting the Redundant Controllers
Creating Primary and Secondary ID
10-22 Infortrend
 Set Sec. Ctlr Idna to ID 6?
CHL=0 ID=0 Primary Ctlr Add Channel
View and Edit Logical Drives
Redundant Controller 10-23
 Mapping a Logical Drive/Logical Volume to the Host LUNs
10-24 Infortrend
 What will happen when one of the controllers fails?
When and how is the failed controller replaced?
Front Panel View of Controller Failure
Redundant Ctlr Failure Detected
 Via Terminal Emulation
10-26 Infortrend
 Redundant Controller 10-27
 10-28 Infortrend
 Assigning Logical Drives to the Secondary Controller
Redundant Controller 10-29
 10-30 Infortrend
 When and How Is the Failed Controller Replaced?
Terminal Interface View of Controller Failure
Redundant Controller 10-31
 10-32 Infortrend
 Forcing Controller Failover for Testing
Redundant Controller 10-33
 RCC Status Redundant Controller Communications Channel
Secondary Controller RS-232
Remote Redundant Controller
Cache Synchronization on Write-Through
 Record of Settings 11-1
View and Edit Logical Drives
 11-2 Infortrend
 View and Edit Logical Volumes
Record of Settings 11-3
 View and Edit Host LUN’s
11-4 Infortrend
 Record of Settings 11-5
 View and Edit Scsi Drives
11-6 Infortrend
 Record of Settings 11-7
View and Edit Scsi Channels
 View and Edit Configuration Parameters
Communication Parameters
11-8 Infortrend
 Record of Settings 11-9
Host Side Scsi Parameters
 Disk Array Parameters
11-10 Infortrend
 Record of Settings 11-11
View and Edit Peripheral Devices
 Save Nvram to Disk, Restore from Disk
RAID Security Password
11-12 Infortrend
 What is it and how does it work?
Array Expansion
 Added Capacity
 Expand Logical Drive Re-Striping
Array Expansion
 Mode 1 Expansion Adding Drives to a Logical Drive
Add-Drive Procedure
 12-5
 12-6
 Copy and Replace Procedure
Expansion by Copy & Replace
 12-8
 Making Use of the Added Capacity Expand Logical Drive
12-9
 12-10
 Expand Logical Volume
 Limitations When Using Windows
Example
 12-13
 12-14
 12-15
 12-16
 12-17
 Navigation Map
Start
 Create
 View and Edit Scsi Drives
 View and Edit Scsi Channels
 View and Edit Configuration Parameters
 View and Edit Peripheral Device
 End
 Basic RAID Management
Appendix
 Advanced Features
 Caching Operation
128
 RAID Expansion
Caching Optimization
 Fibre Channel Support
 A.R.T. Support
Redundant Controller
 Data Safety
 System Security
 Environment Management
 User Interface
Remote Manageability
 JBOD-Specific
Others
 Redundant Controller Rolling Firmware Upgrade
Upgrading Firmware
System Functions Upgrading Firmware
 Redundant Controller Firmware Sync-version
Establish the In-band Scsi connection in RAIDWatch Manager
 Upgrade Both Boot Record and Firmware Binaries
 Upgrading Firmware Using RS-232C Terminal Emulation
Upgrade the Firmware Binary Only
 Upgrading Both Boot Record and Firmware Binaries
 Upgrading the Firmware Binary Only
 Event Index
Controller Event
Event Messages
 Drive Scsi Channel/Drive Error
Notification
 Logical Drive Event
General Target Events
 I2C Device
 Notification SAF-TE Device
 3fa2 Notice Controller FAN Back On-Line RPM
 Controller Event
Happens?
 Happens? What to Do?
 Happens? What to Do?
 Drive Scsi Channel/Drive Error
 Received Sensekey Sensecode
 Happens? What to Do? Line LCD
 = I= Unexpected Sense Rec
 What to Do?
 What to Press ESC to clear the message
 Red Path for C Failure Detected
 Logical Drive Event
 Infortrend
 Happens?
 Infortrend
 Event Type
 General Target Events
 Controller On-board
 Event Type
 Check I 2C cable connection and contact your system supplier
 3F22 Peripheral Device Alert high/low threshold Fan Speed
 Event Messages
 SES Device
 Line LCD . Temp Sensor Device Unknown Status
 What Happens? What to
 Line LCD . Current Sensor Device Not Supported
 Infortrend
 What Happens?
 Temperature back to non-critical level
 Controller Self Diagnostics
 Contlr FAN Back On-Line
 Happens?
 SES Device Alert
 Alert Notification What UPS device failure detected
 Index
Index-1
 Index-2 Infortrend
 Index-3
 Index-4 Infortrend
 Nvram
Index-5
 RCC
Index-6 Infortrend
 Index-7
 Zmodem
Index-8 Infortrend