Infortrend RAID Controller Manual

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2-2 2.3 RAID Levels RAID stands for Redundant Array of Independent Disks. Using a RAID storage subsystem has the following advantages: • Provides disk spanning by weaving all connected drives into one single volume. • Increases disk access speed by breaking data into several blocks when reading/writing to several drives in parallel. With RAID, storage speed increases as more drives are added as the channel bus allows. • Provides fault-tolerance by mirroring or parity operation. What are the RAID levels? Table 2 - 1 RAID Levels RAID Level Description Capacity Data Availability NRAID Non-RAID N RAID 0 Disk Striping N ==NRAID RAID 1 (0+1) Mirroring Plus Striping (if N/2 >>NRAID N>1) ==RAID 5 RAID 3 Striping with Parity on N-1 >>NRAID dedicated disk ==RAID 5 RAID 5 Striping with interspersed parity RAID 10 (Logical Volume) RAID 30 (Logical Volume) RAID 50 (Logical Volume) Striping with RAID 1 logical drives Striping with RAID 3 logical drives Striping with RAID 5 logical drives N-1 >>NRAID ==RAID 5 / >>NRAID >>RAID 5 / >>NRAID >>RAID 5 / >>NRAID >>RAID 5 NOTE: Drives on different channels can be included in a logical drive and logical drives of different RAID levels can be used to configure a logical volume. There are more combinations than RAID 10, 30, and 50. RAID Level Performance Sequential Performance Random NRAID Drive Drive RAID 0 R: Highest R: High W: Highest W: Highest RAID 1 (0+1) R: High R: Medium W: Medium W: Low RAID 3 R: High R: Medium W: Medium W: Low RAID 5 R: High R: High W: Medium W: Low Infortrend
Figure 2 - 2 NRAID = + + + Logical Drive Logical Drive Block 1 Block 2 Block 3 Block 4 Block 5 Block 6 Block 7 Block 8 . . 2 GB Hard Drive 3 GB Hard Drive 1 GB Hard Drive 2 GB Hard Drive 2 + 3 + 1 + 2 = 8 GB Logical Drive Figure 2 - 3 JBOD 2 GB Logical Drive 3 GB = 2 GB Hard Drive = Logical Drive 1 GB = Logical Drive 2 GB = Logical Drive Figure 2 - 4 RAID 0 NRAID Disk Spanning JBOD Single Drive Control Block 1 Block 3 Block 5 Block 7 . . 3 GB Hard Drive 1 GB Hard Drive 2 GB Hard Drive RAID 0 Disk Striping Physical Disks Striping Block 2 Block 4 Block 6 Block 8 . . NRAID Minimum Disks 1 required Capacity N Redundancy No NRAID stands for Non-RAID. The capacity of all the drives is combined to become one logical drive (no block striping). In other words, the capacity of the logical drive is the total capacity of the physical drives. NRAID does not provide data redundancy. JBOD Minimum Disks 1 required Capacity 1 Redundancy No JBOD stands for Just a Bunch of Drives. The controller treats each drive as a stand-alone disk, therefore each drive is an independent logical drive. JBOD does not provide data redundancy. RAID 0 Minimum Disks 2 required Capacity N Redundancy No RAID 0 provides the highest performance but no redundancy. Data in the logical drive is striped (distributed) across several physical drives. Functional Description 2-3
Page 1 and 2: Infortrend External RAID Controller
Page 3 and 4: UNIX is a registered trademark of T
Page 5 and 6: Chapter 5 LCD Screen Messages 5.1 T
Page 7 and 8: Logical Drive Information..........
Page 9 and 10: 13.9.1 Supported Operating Systems
Page 11 and 12: Chapter 8 Figure 8 - 1 Drive Space
Page 13 and 14: Chapter 13 details how to install t
Page 15 and 16: Functional Table of Contents: This
Page 17 and 18: Chapter 9 Fibre Operation Page numb
Page 19 and 20: Chapter 14 Fault-Bus Page number: L
Page 21: Chapter 2 1 2 3 Logical Drive Funct
Page 25 and 26: Figure 2 - 7 RAID 3 Logical Drive P
Page 27 and 28: Local Spare Drive LS (9GB) 1 2 (9GB
Page 29 and 30: 2.4.3 Automatic Rebuild and Manual
Page 31 and 32: 2.5 Logical Volume (Multi-Level RAI
Page 33 and 34: Configuration A is a large logical
Page 35 and 36: To perform RAID expansion on a logi
Page 37 and 38: Chapter 3 RAID Planning 3.1 Conside
Page 39 and 40: Spare drives allow for the unattend
Page 41 and 42: 3.3.2 Understanding Step by Step Fi
Page 43 and 44: following chapters. The configurati
Page 45 and 46: 3. Create and configure one or more
Page 47 and 48: 4-2 Select "Communication Parameter
Page 49 and 50: 4-4 4.2 Out-of-Band via Ethernet Ne
Page 51 and 52: 4-6 • One logical drive with rese
Page 53 and 54: 5-2 5.3 Logical Drive Status Logica
Page 55 and 56: 5-4 5.5 SCSI Drive Status SCSI Chan
Page 57 and 58: 5-6 5.7 Controller Voltage and Temp
Page 59 and 60: Chapter 6 Front Panel Operation 6.1
Page 61 and 62: Write-Back/Write-Through Cache Enab
Page 63 and 64: You may first examine whether there
Page 65 and 66: Maximum Drive Capacity: Choose “M
Page 67 and 68: 6.6 Partitioning a Logical Drive/Lo
Page 69 and 70: With any of the Host LUN mapped, th
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Assigning a Logical Drive Name Pres
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6.10 Viewing and Editing Host LUNs
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press ENT. Press ▼ or ▲ to choo
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SCSI channel information will be di
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Setting a SCSI Channel’s Terminat
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Press ▼ or ▲ to select “Set T
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Press ENT for two seconds to change
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Reset Controller To reset the contr
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Controller Unique Identifier Choose
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Chapter 7 Terminal Screen Messages
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7.4 Logical Drive Status LG LV ID R
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7.6 SCSI Drive’s Status Slot Chl
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On Terminator is enabled. Off Termi
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7.9 Viewing Event Logs on the Scree
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8-2 mode is to backup all data to s
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8-4 IMPORTANT! • The default opti
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8-6 Logical Drive Preferences: Afte
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8-8 8.5 Creating a Logical Volume A
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8-10 Choose the logical volume you
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8-12 select an available LUN (one n
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8-14 Move cursor bar to the SCSI dr
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8-16 Choose the logical drive you w
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8-18 8.10 Viewing and Editing Host
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8-20 You may also choose “flash s
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8-22 Viewing and Editing SCSI IDs /
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8-24 Setting a Secondary Controller
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8-26 IMPORTANT! • Every time you
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8-28 Disconnecting Support Choose
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8-30 Change Password Use the contro
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8-32 For "Controller Maintenance" f
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8-34 Saving NVRAM to File (via Text
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8-36 Choose “View and Edit Periph
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8-38 SCSI Drive Read/Write Test Fro
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9-2 Different Fibre arrays can be d
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9-4 issue when every server in this
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9-6 Figure 9 - 1 Host Loop Connecti
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9-8 9.4 Configuration: Host and Dri
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9-10 View and Edit Fibre Drive Choo
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9-12 Figure 9 - 3 Dual Loop Configu
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9-14 With firmware release 3.14 and
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9-16 Figure 9 - 5 Host-LUN Mapping
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9-18 When a logical unit is selecte
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9-20 Include: If a node's (a workst
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9-22 The exemplary entry list is sh
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10-2 Figure 10 - 1 Logical Drive Ex
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10-4 A list of available drives wil
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10-6 10.1.3 Copy and Replace Drives
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10-8 10.1.4 Expand Logical Drive In
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10-10 10.1.6 Example: RAID Expansio
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10-12 Follow the steps described in
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10-14 Select an existing volume (Di
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10-16 Drive E: now has a capacity r
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10-18 The cloning process will begi
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10-20 The cloning progress will be
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10-22 NOTE: Clone + Replace: Contro
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10-24 How to Utilize the S.M.A.R.T.
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A SCSI channel (SCSI bus) can conne
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10-28 This controller supports the
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10-30 Table 10 - 1 Peripheral Devic
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10-32 10.3.2 Drive-side Parameters:
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10-34 When the drive itself detects
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10-36 Edit SCSI Drives.” If any d
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10-38 To decide under what conditio
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11-2 Partition Information LG Parti
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11-4 11.3 View and Edit Host LUN’
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11-6 11.4 View and Edit SCSI Drives
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11-8 11.6 View and Edit Configurati
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11-10 Disk Array Parameters Rebuild
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11-12 Update Firmware 11.8 Save NVR
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12-2 � Fibre Interface The contro
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12-4 Figure 12 - 4 Partitioning Log
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12-6 in this configuration should f
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12-8 interface and multiple IDs are
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12-10 F. Considerations with Redund
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12-12 Controller Settings: Redundan
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12-14 12.2.2 Limitations • Both c
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12-16 12.3 Configuration Listed bel
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12-18 When the redundant controller
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12-20 The process of creating Prima
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12-22 NOTE: Front Panel View of Con
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12-24 The message "Enable Redundant
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12-26 Creating Primary and Secondar
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12-28 Select partition Mapping opti
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12-30 If the replacement has been i
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Chapter 13 In-band SCSI Text RAID M
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13.2 Windows NT for DEC Alpha Intro
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NOTE: • The names and values in t
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13.3 MS-DOS Introduction: The Drive
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(where "filename" is the filename o
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13.5.3 Install SNMP Extension Agent
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To uncompress the compressed file,
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5. Reboot the system. 6. Run the Te
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13.7 Solaris 2.5.x/2.6/7/8 for SPAR
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Select package(s) you will to proce
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(where "filename" is the filename o
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13.9 SCO UnixWare Introduction: The
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the corresponded Peripheral Device
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• SNMP MIB file ("RAIDSNMP.MIB")
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NOTE: 11. Type "Pathname" for value
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Chapter 14 Fault-Bus 14.1 What is F
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failure, activate the signal. When
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information list. Assign a slot num
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Press ▼ or ▲ to select “Toggl
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Delete the Slot Number of a SCSI Dr
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Viewing the Status of Each Fault-bu
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A-2 Create Create Logical Volume Su
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A-4 Change Setting Do Reset Ctlr ?
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A-6 Enable/Disable Motor Spin-Up ?
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Appendix B Basic RAID Management: F
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Maximum concurrent Host LUN connect
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Drive S.M.A.R.T. Support Supported,
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Data Safety: Redundant Controller f
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User Interface: RAIDWatch on-board
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C-2 The rolling upgrade is automati
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C-4 Upgrade the Firmware Binary Onl
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C-6 2. Go to "Controller Maintenanc
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D-2 Drive SCSI Channel/Drive Error
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Controller Event 2-Line LCD DRAM Pa
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2-Line LCD Controller Init Complete
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Drive SCSI Channel/Drive Error 2-Li
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2-Line LCD C=_ I=_ Drive Not Ready
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2-Line LCD CHL=_ SCSI Channel Failu
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2-Line LCD Mem is Now Enough Suppor
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2-Line LCD LG=_ Expansion Completed
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2-Line LCD LG=_ Add SCSI Drive Comp
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2-Line LCD High +12V Voltage Detect
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2-Line LCD High +5V Voltage Detecte
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Appendix E Differences in Logical D
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You may also see the status of rese
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D Dedicated Communications Loops 9-
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port) Out-of-band Configuration, Re
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target/drive channel, viewing and 6
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