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Accusys ACUTA User Manual

Raid subsystem
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  • Page 3: Preface

    Other product and company names mentioned herein may be trademarks and/or service marks of their respective owners. All contents of this manual are copyrighted by Accusys, Incite information contained herein is the exclusive property of Accusys, Inc. and shall not be copied, transferred, photocopied, translated on paper, film, electronic media, or computer-readable form, or otherwise reproduced in any way, without the express written permission of Accusys Inc.

  • Page 4: Regulatory Information

    Accusys Acuta User’s Manual Regulatory information For Europe This equipment is in conformity with the EMC directive. Federal Communications Commission (FCC) Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
  • Page 5 Preface CCC certificate This equipment is in conformity with the CCC S&E requirement.

  • Page 6: About This Manual

    Accusys Acuta User’s Manual About this manual Intended user This manual is designed and written for users of the ACUTA subsystem. This is an entry level product suitable for most users. Organization of the manual This manual consists of the following sections:...

  • Page 7: Using This Manual

    When you have reached this point, your ACUTA subsystem will be ready for use. To get the most from ACUTA, you may also want to set up the AcutaView GUI on your system. With this browser you can monitor the status of your array at any time and from any computer on your LAN.

  • Page 8: Guide To Conventions

    Important terms, commands and programs are put in Boldface font. Screen text is given in screen font. Related Products/Versions AcutaView: A GUI application designed for use with the ACUTA subsystem. The application serves as a handy and effective tool for remote, cross-platform monitoring of arrays. Related Documents for Reference...

  • Page 9: Table Of Contents

    Chapter 1 – Introduction PREFACE ..................1 ........................1 OTICE ......................1 RADEMARKS ..................2 EGULATORY INFORMATION ....................4 BOUT THIS MANUAL Intended user......................4 Organization of the manual ................. 4 ....................5 SING THIS MANUAL ................... 6 UIDE TO ONVENTIONS .................
  • Page 10 Accusys Acuta User’s Manual ..................21 INSTALLATION NOTICES CHAPTER 3-SETTING UP THE SUBSYSTEM......22 ACUTA..............22 AMILIARIZING YOURSELF WITH Overview ......................22 Front view ......................23 Rear view ......................24 Host connection ports: IEEE 1394 and USB interface version ......24 Host connection ports: Serial ATA interface version.........
  • Page 11 Chapter 1 – Introduction Disk failure message ..................54 RAID configuration error message..............54 Fan failure message................... 54 Overheating error message................55 RAID ................. 55 AND DISK STATUS MESSAGES Power on ......................55 Disk initialization....................55 Ready ......................... 55 RAID level......................55 RAID ...............

  • Page 12: Chapter 1- Introduction

    The four drive design allows also one drive to be designated a hot spare: if one of other drives fails, the ACUTA will seamlessly rebuild the failed drive’s data on the hot spare.

  • Page 13: Key Features

    Hot Spare Hot Spare allows for the automatic replacement of a failed drive without requiring intervention from the administrator. If this option is selected and a drive fails, the ACUTA will automatically replace the faulty drive with the hot spare drive.

  • Page 14: Specifications

    Accusys Acuta User’s Manual Specifications Available host intefaces and transfer speeds IEEE 1394A/B 400/800 Mbps and USB 2.0, 480 Mbps; or SATA I, 1.5Gbps Disk Interface Support 4 x ATA-100/133 or 4 x Serial ATA I RAID Function Support Hardware RAID level 0, 5, 0+1, 5 + spare by switch setting...

  • Page 15: Mechanical, Environmental And Safety Specifications

    Chapter 1 – Introduction Mechanical, Environmental and Safety Specifications Dimensions: 402mm x 200mm x 175mm Weight: < 6.67 Kg without disks Host Connectors (depending on hardware configuration): Two 9-pin 1394B with power connectors and one USB2.0 connector; or One Serial ATA connector Interface Connectors: One RS-232 connector Operation temperature: 0 ~ 40℃...

  • Page 16: Chapter 2-Before You Begin

    In its most basic configuration, your package should include the following: ACUTA Controller Box with four drive trays (DISKs not included) ACUTA is available in two hardware configurations with the following host interfaces: IEEE 1394A/B and USB 2.0 Serial ATA I...
  • Page 17 Chapter 2 – Before you begin The following cables: RS-232 cable Power cable Serial ATA Cable (Serial ATA version only) USB Cable (IEEE 1394 and USB version only) Serial ATA external port cable bracket IEEE1394a to 1394b cable (Serial ATA version only) (IEEE 1394 and USB version only) IEEE 1394b to 1394b cable (IEEE 1394 and USB version only)

  • Page 18: What Else You Need

    Introduction to RAID levels The ACUTA can support the following RAID levels: 0, 0+1 and 5 with the additional option of RAID 5 + hot spare. Which is the right level for you? The answer depends on the application it is used for.

  • Page 19: Raid 0

    Chapter 2 – Before you begin RAID 0 RAID 0 links each drive in the array as one huge drive. Storage capacity is determined by the smallest drive in the array. That capacity is then applied to format all other drives in the array. If using a 40 GB, 50GB, 60 GB, and 70 GB drive in a RAID 0 array, your system will see one huge drive of 160 GB (40 GB×4).

  • Page 20: Raid 0+1

    Accusys Acuta User’s Manual RAID 0+1 RAID 0+1 combines mirroring and striping functions on a minimum of four hard disks. Mirroring provides full redundancy and protects data in case of multiple drive failure (providing that data on one of each mirrored pair of drives is intact).

  • Page 21: Raid 5 And Raid 5+Hot Spare

    RAID 5 requires at least three drives. The ACUTA allows users to set RAID 5 with three drives and the fourth drive as a “hot spare” ready to be used for rebuilding data in case one of the other drives fails. This is RAID 5 +hot spare function.
  • Page 22 Accusys Acuta User’s Manual The diagram below represents the writing of data on a RAID 5 array composed of four DISKS connected to the controller. Parity blocks are represented by the letter P. The diagram below represents the writing of data on a RAID 5+hot spare array composed of four DISKS connected to the controller.

  • Page 23: Pre-Installation Notices

    To avoid overheating, ACUTA should be installed in a well-ventilated area and in such a way that sufficient airflow is maintained across the controller chips.

  • Page 24: Chapter 3-Setting Up The Subsystem

    Accusys Acuta User’s Manual This chapter gives an overview of the ACUTA and explains how Remove the drive carriers from the controller box Load hard drives into the drive carriers Install the drive carriers in ACUTA Familiarizing yourself with ACUTA...

  • Page 25: Front View

    Each drive carrier can hold a one-inch high 3.5-inch form factor parallel ATA IDE disk drive. Display The LCD displays status and configuration information for the ACUTA subsystem and arrays. A full list of LCD display messages is given in Appendix C. Scroll button...

  • Page 26: Rear View

    RAID level. See Setting RAID level in Chapter Host connection ports The host connection ports differ depending on the host interface of your ACUTA subsystem. Two hardware configurations of ACUTA are available: Power status indicator: Indicating power supply status.

  • Page 27: Host Connection Ports: Serial Ata Interface Version

    We recommend that you use one of the following hard disk brands: Fujitsu, IBM, Maxtor, Quantum, Seagate, or West Digital. All four hard disks should be configured as Single Master. The ACUTA should be fitted with four hard disk drives (DISKs). Load each drive into a drive carrier as follows:...
  • Page 28 Accusys Acuta User’s Manual 1. Pull the drive carrier handle to release the latch. 2. Slide the drive carrier out of the controller box. 3. Place the disk drive at an angle in the drive carrier and connect the power connector to the disk drive 4.
  • Page 29 7. Slide the loaded disk drive carrier into the ACUTA Controller Box and push flat the carrier handle to lock the carrier in position. The disk carrier connector at the back of each controller box disk carrier slot can be damaged if the disk carrier is not properly aligned when inserted.

  • Page 30: Chapter 4-Setting Up An Array

    Set the time and date on ACUTA Array creation flowchart Setting up an array on ACUTA is simple. This chapter will lead you though the following steps: Use the RAID level selector to set the RAID level (0, 0+1, 5...

  • Page 31: Setting Raid Level

    Chapter 4 – Setting up an array Setting RAID level RAID level is set using the RAID level selector on the rear panel of ACUTA. The RAID level selector consists of two switches. The four possible combinations switch position correspond to the four available RAID settings: 0, 0+1, 5 and 5+spare.
  • Page 32 Accusys Acuta User’s Manual ACUTA must be switched off to change RAID level. To change RAID level: Power off ACUTA Set the new RAID level using the RAID level selector Remove all four disks Power on ACUTA Install the four disks to start RAID initialization...

  • Page 33: Setting Raid 0

    Move selector switch 1 to ON and 2 to OFF as shown Setting RAID 5 1. Ensure ACUTA is turned off . Move both selector switch 1 and 2 to OFF. Setting RAID 5+spare 1. Ensure ACUTA is turned off.

  • Page 34: Creating An Array

    5. Install drives to begin initialization ACUTA will check the status of the installed drives. If all of four drives are brand new or never been used in Acuta then the initialization of the desired RAID level array will begin automatically.
  • Page 35 Chapter 4 – Setting up an array The upper disk status indicator and low disk activity indicator on each drive carrier indicate the following: Disk Status Disk Activity Controller Status Indicator Indicator Alternating green Flashing blue RAID being initialized & amber Alternating green Flashing blue RAID being rebuilt...
  • Page 36 Accusys Acuta User’s Manual A full list of LCD display messages is given in Appendix C If system power is turned off midway through array initialization, the process will continue from its point of interruption when power returns. In a RAID 5+spare array, the disk in the TOP drive carrier is the hot spare initially.

  • Page 37: Removing / Replacing A Drive

    RAID rebuilding will be processed automatically in the background and the ACUTA RAID subsystem will record its progress. If the host system is shut down or powered off abnormally, the ACUTA RAID subsystem will continue the disk rebuilding process after power is turned on again.

  • Page 38: Removing A Drive

    Accusys Acuta User’s Manual Removing a drive 1. Pull the drive carrier handle to release the latch. 2. Slide the drive carrier out of the controller box. 3. Place the drive carrier face down and remove four screws from the base that are securing the drive inside the carrier.

  • Page 39: Connecting To A Host Computer

    Windows 2000 users should upgrade their operating system to at least Windows Service Pack 3 for the operating system to be able to recognize ACUTA on an IEEE 1394 host connection. To check whether you should upgrade, right click on the My Computer icon on your desktop and select Properties.

  • Page 40: Serial Ata Host Interface Version

    ACUTA via an RS-232 cable to a terminal or computer hosting a terminal emulation program. 3. The host computer should detect the presence of the ACUTA subsystem. Turn to the next chapter for instructions on formatting your array. Serial ATA host interface version Serial ATA allows transmission up to 1.5 Gbps.
  • Page 41 Advanced users wishing to remotely monitor the status of their array should connect ACUTA via an RS-232 cable to a terminal or computer hosting a terminal emulation program. 3. The host computer should detect the presence of the ACUTA subsystem. Turn to the next chapter for instructions on formatting your array.

  • Page 42: Setting The Display Time & Date

    Accusys Acuta User’s Manual Setting the Display Time & Date Press down the right hand (Enter) button for over five seconds to enter or change the time and date displayed on the display. When you release the button, the date and time setting screen...

  • Page 43: Chapter 5-Partitioning The Array

    Chapter 5 – Partitioning the array This chapter explains how to partition the array in Windows , Linux and Mac OS X operating systems. Partitioning the array - Windows The array must be partitioned before it can be used. To do this on a Windows operating system: 1.

  • Page 44: Partitioning The Array - Linux

    Accusys Acuta User’s Manual 6. Right click on the disk representing the array and select Create Partition. Follow the wizard to create one or more partitions on the array. 7. When you have completed creating a partition, the array will appear as a disk in the disk management section of the Computer Management dialog box.
  • Page 45 Chapter 5 – Partitioning the array 4. Enter the command to format the disk (array): fdisk /directory/device name (e.g. fdisk /dev/hde). 5. When the disk is formatted, you should partition the disk. Call up the help screen as shown to identify the correct command to add a partition.

  • Page 46: Partitioning The Array - Mac Os X

    You must partition the disk and make it accessible to the operating system. 5. Choosing Acuta by click in left menu and click on tag “partition” to fill the name and size of the array. The array could be created to be a single volume or several volumes, determined by intention of user.
  • Page 47 Chapter 5 – Partitioning the array 7. The partition will then begin, and process is been showing as creating partition map in lower right corner of dialog box. 8. When you have completed creating a partition, the array will appear as a disk in storage list in left menu, and be put on desktop as shortcut.

  • Page 48: Appendix A-Faq

    There is no need to immediately replace the failed drive. The capacity of new DISK you installed must equal or larger than the smallest DISK in Acuta. Otherwise, it will be rejected by Acuta, though it has no any damage.
  • Page 49 Plug in all of disks to initialize new RAID. If you use previous disks, Acuta will show a message “Create New RAID?” to confirm with you if you really want to create a new RAID. Please choose “Yes” by right button, the initialization will then begin.
  • Page 50 Accusys Acuta User’s Manual Swap the position of the drive carrier that failed twice and turn on. If the same drive carrier fails, replace it. If the failure reappears at the same drive carrier slot, ACUTA is faulty. Perform the next step.
  • Page 51 <423s>: the spare disk is put in the tray 4 and original disk 4 is put in the tray 1Disk order error, 16. Why can’t I use Acuta with Windows 98 on a USB2.0 host interface ? We recommend user NOT to use Windows 98 because Windows 98 is too old and not compatible with many cards.
  • Page 52 Accusys Acuta User’s Manual Array See Disk Array. Array Management Software The body of software that provides common control and management for a disk array. Array Management Software most often executes in a disk controller or intelligent host bus adapter, but may also execute in a host computer.

  • Page 53: Appendix B-Glossary

    Appendix B – Glossary Parallel ATA (Parallel Advanced Technology Attachment) Formerly referred to simply as ATA, now known as parallel ATA to differentiate it from Serial ATA. Various versions exist, including ATA (also called IDE), ATA-2 (Fast ATA or Enhanced IDE /EIDE) and Ultra ATA (Ultra DMA).

  • Page 54: Appendix C-Lcd Display Messages

    Accusys Acuta User’s Manual Initialization messages Meaning LCD display Message cleared when New RAID being Initialization R A I D I N I T x x . x % created completed T o t a l : x x x x G B...

  • Page 55: Rebuild Messages

    Appendix C – LCD Display Messages Rebuild messages Meaning LCD display Message cleared when Rebuilding data to new Rebuild completed R e b u i l d x x . x disk following disk successfully T o t a l : x x x x G B failure Rebuild failure...

  • Page 56: Failure And Error Messages

    Accusys Acuta User’s Manual Failure and error messages RAID failure message Meaning LCD display Message cleared when RAID failed. Not enough Disk reinstalled R A I D F a i l number of function disks c o d e : 0 for a RAID to operate RAID failed.

  • Page 57: Overheating Error Message

    I n i t i a l i z e D i s k s initializing disks Ready Meaning LCD display Message cleared when ACUTA turned on ACUTA A C U T A successfully completed R e a d y h h : m m...

  • Page 58: Raid And Disk Information Messages

    Accusys Acuta User’s Manual RAID and disk information messages The following messages display when the scroll button is pressed when a RAID has been established. Press the scroll button to move between the information messages in the order shown. Disk information...

  • Page 59: Appendix D-Updating Firmware

    Ask your vendor about the latest firmware edition or refer to the website www.accusys.com.tw Once new or updated firmware has been obtained, it can be downloaded to ACUTA from a host PC with third party communication software, such as HyperTerminal, that supports ANSI terminal emulation.
  • Page 60 5. The Connect to dialog box appears. Select COM1 or COM2 from the Connect using: dropdown menu, depending on which port is linked to ACUTA. Click OK. 6. The COM Properties dialog box will appear. Set the following values: Bits per second: 19,200...
  • Page 61 Appendix D – Updating Firmware 8. Turn on ACUTA and press Esc on the host Acuta4 Download Mode ====== computer keyboard. The >>>>> prompt ******Choose "1" to download firmware. will appear. 9. Type in the command ”download”. Enter '1' to Download Firmware 10.

  • Page 62: Appendix E-Contact Us

    Accusys Acuta User’s Manual Accusys, Inc. Accusys U.S.A., Inc. • • 8F, No.47 Lane 2, Sec. 2, Guangfu Address: 46710 Fremont Blvd. Rd., Hsinchu, Taiwan, R.O.C. Fremont, CA 94538, U.S.A. • • Tel : +886-3-575-0668 Tel:+1-510-661-0800 • • Fax : +886-3-575-0866 FAX:+1-510-661-9800 •...

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