Maxtronic Co ARENA-EX Disk Array System User Manual 8
Maxtronic International Co Ltd Disk Array System 8
8
** USERJS MANUAL $$ (y; FCC ID : NKF—ARENA-EX Federal Communications Commission (FCC) Statement This equiplent has been tested and found to conply with the linits for a Class B digital device. pursuant to part 15 of the FCC Rules. These lilits are designed to provide reasonable protection against harmful interference in a residential installation. This equiplent generates, uses and can radiate radio frequency enersy and. if not installed and used in accordance with the instructions. lay cause harnful interference to radio conlunications. However. there is no guarantee that interference will not occur in a particular installation. If this equip-ant does cause harnful interference to radio or television reception, which can be deterained by turning the equipment off and on. the user is encouraged to try to correct the interference by one or more of the following neasures: -- Reorient or relocate the receiving antenna. —- Increase the separation between the equipnent and receiver. -— Connect the eqhipnent into an outlet on a circuit different fro: that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. Warning: A shielded‘type power cord is required in order to meet FCC enission lilits and also to Prevent interference to the nearby radio and television reception. It is-essential that only the supplied power cord be used. Use only shielded cables to connect 1/0 devices to this equipnent. You are cautioned that changes or modifications not expressly approved by the Party responsible for colpliance could void your authority to Operate the equiplent. Arena EX SCSI to IDE Disk Array system User's Guide Version 1 .1 November 1998 Important i Safety Instructions. Care and Handling . Before starting, take a few minutes to read this manual, read all of these instructions and save this manual for later reference. Protect the Disk Array from extremely high or low temperatures. Let the Disk Array warm (or cool 1 to room temperature before using it. . Protect the Disk Array from being bumped or dropped. Do not place this product on an unstable cart, stand, or table. It may fall, causing serious damage to the product. Keep the Disk Array away from magnetic forces. Do not use this product near water. Keep the Disk Array away from dust, sand, or dirt. Gaps and openings in the cabinet and the back are provided for ventilation. To ensure reliable operation and to protect it from overheating, the gaps and openings should never be blocked or covered by placing the product on a bed, sofa, rug. or other similar surface. Do not place this product near or over a radiator or heat register. Refer to rating plate for voltage and check that the appliance voltage corresponds to the supply voltage. The appliance must be grounded. This product is equipped with a 3wire grounding-Type power cord, this power cord will only fit Into a groundingtype power outlet. Operating Environment I When selecting a suitable working location, please consider : 0 Ventilation . Temperature 0 Dust and dirt o Electromagnetic and Radio Frequency Interference. 0 Security The selected location should provide at least six inches of open space around the Disk Array cabinet for proper airflow. Your Disk Array functions best at normal room temperature. Choose a location free from extreme heat or cold. Warning! The Disk Arrcn/‘s LCD Panel may be damaged by exposure to intense sunlight. Limlt exposure to indirect or subdued sunlight only. Your Disk Array should be used in a clean environment that is free from airborne contaminants such as dust, dirt, and smoke. Excessive moisture or oil particles in the air can also hinder your system‘s performance. To reduce the possibility of data errors caused by electromagnetic interference, locate your Disk Array at least five feet cmay from electrical appliances and equipment that generates magnetic fields. Chapter 1 : Introduction Features General RAID concepts RAID Level 0 RAID Level 1 RAID Level 3 44444 1-8 RAID Level 5 -- Summary Comparison of RAlD Levels Supported RAID Levels »»»»»» MuitI-SCSi Format support Chapter2 : Getting Started General Overview -------- Unpacking & Checklist Choosing a place for Disk Array Identifying Ports of Disk Array Front View Rear mew Power Source Installing the Hard Disk Drive Host Linkage ----- Power—On & Self—Test LED Display & Function Keys LED Display Function Keys LCD Status Panel Chapter3 : Configuration General Overview Configuration from the front Panel Chapter 1 : " Introduction " I This chapter will In'rroduce you to yout new Dlsk Army's features and provide Informofion on general RAID concept Introduction Solid reliability - Automatic failed disk drive detection. - Auto rebuild : when a replacement disk installed (or by using hot spare disk ), Arena provides automatic data rebuild without any commands or functlor‘s keyed In. (Transparent to Host ) Efficient maintenance - An LCD status panel displays a comprehensive readout of the operating status, and the HDD LED indicators on each HDD tray display the individual HDD status. - When disk failure occurs on a member disk of the disk array, the built-in buzzer sounds simultaneously and LCD status panel also points out the location of the tailed hard disk drive. in the meantime the LED HDD status indicator will light up " Red “on the failed HDD tray , according the LED Indicator on the HDD tray you can perform quick efficient and correct maintenance. - Hot Swap : allows you can remove and Install the " Hot Swap " parts without interrupting data access while the Arena is on. - The ' Hot Swap ' parts Include the Hard Disk Drive, Redundant Power Suppty Unit and Cooling Fan. Introduction RAID Levels RAID Level 0 : " Disk striping " High I/O Performance Disk 1 Dlsk 2 Dlsk 3 Disk 4 Disk 5 Dlsk 6 Physical olmproved l/O performance Is the motor reawn for using RAID level 0. o No protection is provided against data loss due to member disk failures. A RAID level 0 array by itself is thus an unsuitable storage medium for data that can not easily be reproduced or for data that must be available for critical system operation. It Is more suitable for data that can be reproduced or is replicated on other media. .A RAID level 0 array can be pariicuiariv useful for : - Storing program Image libraries or runtlme libraries for rapid loading, these libraries are normally read only. - Storing large tables or other structures of read only data for rapid application access. Like program Images, the data should be backed up on highly reliable media. from which it can be recreated in the event of a failure. - Collecting data from external sources at very high data transfer rates, Introduction RAID Level I : " Disk Mirroring “ High Data reliability Disk 1 Disk2 Optional RAID level 1 provides both very high data reliability and continued data availability In the event of a failure of an array member. When a RAID level 1 member disk falls, array management software simply directs all application requests to the surviving member. RAID level I is suitable for data for which reliability requirements are extremely high, or for data to which high performance access is required, and for which the cost of storage Is a secondary Issue. introduction O The distinctive performance characteristics of RAID Level 3 : - RAID Level 3 provides excellent performance for data transfer-Intensive applications. - RAID level 3 in not well suited for transaction processing or other I/O request-intensive applications. Introduction 0 RAID level 5 arrays have unique performance characteristics : ~ The data can be recalculated or regenerated, using parity, when any drive In the array falls. - When the failed drive Is replaced, either automatically if the subsystem contained a hot spare drive, or by user Intervention during a scheduled maintenance period, the system will be restored its full data redundancy configuration by rebuilding all of the data that had been stored on the failed drive onto the new drive. This Is accomplished using parity information and data from the other data disks, Once the rebuild process ls complete, all data is again protected from loss due to any failure of a single disk drive. Introduction Su 0 0 cried RAID Levels Based on the needs of 0 Disk Arrays capacity, data availability, and overall performance, you can select a proper RAID level for your Disk Array. The supported RAID levels are shown In below : Drives required Mln. “Disk striping" . block striping is used. which yields higher performance than with the Individual disk drives. * There is no redundant function. I‘Disk Mirroring" , Disk drives are mirrored . All data Is 100% duplicated on each equivalent disk drives. * High Data Reliability " Parallel Transfer Disks with Parity ", Data Is sirlped across physical drives. Parity protection is used for data redundancy. " Independent Access Array with Partly Data Is striped across physical drives. Rotating Parity protection is used for data redundancy. " Disk Striping ' + ' Disk Mirroring" Function. Chapter 2 : " Getting Started " General Overview This chapter helps you get ready to use the Disk Array. It gives you : O Unpacking & Checklist 0 Choosing a place for Disk Array 0 identifying Parts of Disk Array 0 Power Source 0 installing the Hard Disk Drives 0 Host Linkage 0 Power—On and Self-test 0 LED Display and Function Keys 0 LCD Status Display The following Illustrations will help you read the further sections. Getting Started Chooslng a place for Disk Array I When selectlng a place to set up your Dlsk Array, be sure to follow the gulclellnes as below: 0 Place on a flat and stable surface. 0 Use a stand that supports at least 30.0 kg for thls Disk Array. (HDD included ] 0 Place the Disk Array close enough to the computer for the Dlsk Arrays External SCSI cable to reach it. 0 Use a grounded wall oultet. oAvold an elec’rrlcal outlet controlled by wall switches or automatic tlmers. Accldental cllsruptlon of the power source may wlpe out data In the memory of your computer or Disk Array. 0 Keep the entire system away from potential sources of electromagnetlc Interference, such as loudspeakers , cordless nes, etc. Irect sunlight, excessive heat moisture, or dust. Getting Slarled Figure : Rear Vlew 1. 2. 3. 4. Sr 6. 7. 8, RS232 Adopter [VI] 00 Termlnol Port) Reserved Cooling Fans AC Voltage Select Swilch [l l 5V/230V) Power Supply Un'rl Switch (On / Off] Power Supply Unh‘ 1 [Upper] Power Supply Unit 2 (Lower) Hos? channel adopter Port . Fan Door Screws 10. Power Supply Unil 1 LED indicolor (Green) 1 1. Power Supply fall Indicator [Red] 12. Power Supply Alarm reset swll‘ch 13. AC power lnpul sockel Getting Started lnsiolling 1he Hard Disk Drives Step I : Unlock the HDD troy by tumlng the Key-lock to the correct poslflon. Step 2 : Genny Pull out the HDD troy. Flgure : InquIIIng HDD step 1, 2 Gettin Started Step 6 : Gentty slide in The HDD tray. Step 7 : Lock the HDD troy. When powered on the Green LED will light up. Flgure : Instatllng HDD step 6, 7 Getting Started Power-On and Self-Test When you connect the Disk Array to the Host computer, You should press the Push-button ON/OFF Power Supply Switch on the front panel. It will turn the Disk Array on and the Self—Test will be started automatically. m - Before you push down the power switch, you should turn the ' I " symbol on the power switch cap and align It to point to the " - " mboi on the front panel. [turn to release mode] Protect M . o e : When the " 0 " symbol [on the power sw'rtch cap] points to " - " , the power supply switch is in the protect mode (locked). This is a safety feature to avoid accidentally turning off the Disk Array. Unless you need to power On / Off the disk array, you should put the power supply switch in the protect mode at all times. Figure : Power-On & Seiffiest Getting started ’ Function Keys The four funcflon keys at The Top of the from panel perform The following funcfions : ( 1 ) Up AHOW/ nght Arrow Use fO scroll me cursor Upward / Rightward Use to scroll the cursor Downward / Leftward [lchwnArrow/LeflArrow [Emer] Use To confirm a selected hem [ ESC ] Use to exit a selecilon Chapter 3 : " Configuration “ I After completing the hardware installation, the disk array must be configured and the logical unit must be initialized before ti Is ready to use. This can be accomplished through the following user interfaces : ' - From Panel function keys ( LCD Display) or - VT] 00 terrnlnal connected through the serial port [ Monitor Port] is The LCD display panel and a Wt 00 terminal can not be used at the same time. This chapter guides you through setting up your Disk Array for the first time. This chapter contains information on setup. The setup program Is a menu—driven utility which enables you to make changes to the configuration and tailor your Disk Array to your Individual needs. The setup program is a ROM-based configuration utility which displays the Disk Arrays status and allows you to set up the parameters. The parameters are stored in a nonvolatile battery backup CMOS RAM which saves the Information even when the power is off. By using an easy—to-use user interface, you can configure such items as : - RAID Level - Hot Spare Disk - SCSI iD ~ Termination - Password ( For protection from unauthorized use] - Firmware update [VT] 00 Terminal mode only] for update procedures please refer to Chapter 4 : Advanced information. The setup program has been designed to make it as easy to use as possible. By using a menu-driven program, you can scroll through the various sub-menus and make your selections among the various predetermined choices. Configuration Configurcfion procedures (via Front Panel] |V|C|ln screen Re-Config RAID RAID Level (5, 3, 1, 0, 0+], None] Se? SCSI ID [0~15) Termination (Enable / Dlsable) Se? Password |_ (4m i’rcl] <___ Save Configuroflon No & ResTorf Yes Configuration 5. Set RAID Level Move cursor it I ) to the desired RAID Level ( 5, 3, i. 0, 0+]. None ), press " Enter ' to confirm. All data on the disk drives will be lost by changing the RAID Level, * RAID Level " None " = No Configuration 6. Set Hot Spare Dlsk Select " Yes “ to set one Disk Drive as a Hot-spare Disk. [Valid for RAID Level 5 and 3 , the total number of Disk Drives installed must be more than 3 Disk Drives ) 7. Set SCSI ID Each device on a specific SCSI bus must be configured with a _ target address ( which Is 0 “SCSI ID“ ] which Is different from any other devices on the SCSI Bus. The default SCSI ID for the Arena is ID 0. If you need to assign a different ID # for your Disk Array. The available SCSI ID# for Arena are ID# 0 ~ 15 . You must assign a different SCSI ID to each SCSI device on the SCSI Bus. The SCSI ID# must be Unique tor each device. Configuration Confio uration from W100 Terminal Mode By connecting 0 W100 compatible terminal or a PC operattng in a terminal emulation mode, a configuration can be performed through this Interface. To ensure proper communications between the "Disk Array" and the ”terminal“, Please configure the Vll 00 ten'ninai settings to the values shown below : W1 00 Terminal ( or compatible ) set up Connection Serial Port (COM 1 or COM 2] Protocol R5232 ( Awnchronous ] Null—Modem cable Cabling Baud Rate i9,200 Data Bits Stop Bit Parity Keyboard Function Key Definitions " Enter “ key, Use to confirm a selected item “ esc " key, Use to exit a selection " A " key, Use to scroll the cursor Upward / Rightward " Z " key, Use to scroll the cursor Downward / Leftward ‘ Tab " key, Use to switch mode ( Menu / Output Area 1 Configuration Main Screen une—conhu mm | mm; Law! Han: Spur: man | {Set scar m | wax-manna “Sec Pass-am “SM 5 nun-nu I Iflpdncz ROI w- Ha mam-nun | urea- Ix Disk Bray Cuncxoue: Ivershn 2.217 BI 17] 1953 [serum nu: uuunmsasuusaus nun-w senul cementum. ox lint-“Ad nanny - Siflvtzl now can 1= ITBtrAnq aux Henna fluk l'l'lstinn an): ma: Ln no: lnxsm its an: an ant. um: um: unsx. 11:51 at comcuun 5 s ox. comunan : x 0K. conucnun 1 s ox. inst-llad manned , mac-11m . mat-um magnum . installed . mu mm! contxq ma. nun nu; emimld! mac-Hug zmnon resay. tnkawx»mluu~xaa&iaznt Configuration Set RA|D Level Move the cursor To he desired RAID Level [ 5, 31 l, 0, 0+ 1, none ], and Press" Emer “ to confitm h, All D010 will be lost by chonglng me RAID level. nan ----- — »—Wflfl No eanflquzniun | —— MENU ————————— A--»|Axenn xx nnsx xxx-y Conclnlll: |47An.1n x=nu—--+ Iveruinn z‘zn 9/17/1993 ‘||l=-Conzlw RAID! Isarill Nu: enuuczsasonsaue |\n;xn Level | ITEHting sezx-l cunnzcnann...ox ||nu+—nxxn L=VE)-+ llnstllled lA-nxy - azu1y==s ||s=| u | |!n'c Chnn 1: 11:1 an ||T=| x | |Teacxng axsx noun-euaon s s ||s=| 3 1 |Teucinq dink unungccinn z : nhl | ITEHI'JM max cannecmun 1 s ||vn\ v lv-a LnA 1nd. |¢—-| | lust: ls nor. inst-11:1 ! 4—- ---------- + mm: In an: mac-use ! 1“ mac tucnuzd I xnse-xnea ! xucuugd 5 ml: manned : 1mm um! canny mu. llJID not cunxifluted! man—Mug gunman ready. T‘*""“" Configuration Each device on 0 SCSI bus must be configured fora Targe‘r address (which Is 0 "SCSI ID“), which Is diiferen’r from any other device on Ihe SCSI Bus. The default ID for his Disk Array IS ID#0 If you need assign a different ID# for your Disk Array, The available SCSI ID# for Arena is ID# 0 ~15 You must assign a dliferen‘I SCSI ID to each SCSI device on the SCSI Bus. The SCSI lD# musI be unlque for each device. U. Huntirirmmil Arena xx "amen: mum; vzrzn ______ umrrr Karl g; xxxlxx 11x 1 9 | | ——————————————— MENU -v——--—--——-——--|Ax=u I! van: Anny Cannon“ “7-4—5“ scsx xn-q- |Ve=sian 2.21) 9/11/1593 Iin| ISeriul No: unnnossesuuaene “mi 1 | nanny sezm comuunn...ox rlunl “mums Henry - azimu- llSei IBM: ch-n :: 1151 at life! |T=n=1nu am: cnmunnn a 5 ox. Iis=| Insuw our: cum-acne: z 1 UR. llfi-i rreannq um: nannlctxnn l 3 ex. Wu LBA and: run: as an: hue-um r lust: 1M nan amunaa ! IBXSK: H an: mac-um I Ch": 55.- LII Arc, in at, 11 nun: as not nun-nee uusxx l: par. hut-Ind run: a: new, sun-um Iflst win! canny mm. mm m unlimited! twnian ze-Ayi Configuration Set Password Press " Enter " to activate the password sefl|ng when you key-In the desired “ Number " or " Character “. Press " ESC “ for no change to me password. A an 5: Banner “nut-1 v2.2“ -------- --------------- amm- —|Arenn u can): kxly Connruue: wan-inn 2.21: 9/11/1995 “Fa-Cunfiv rum men-u Ho: unnuussssnunua ”nun Lev=1 I Henna sun-1 Canucciqn...ol 1 ‘ nun: Span nun nun-1m: um“ - aznyu: ”Ser- scsl m | man cm a: 7:51 on unmzuumn | rn-exw aux conucuun e s ox. use: panama | wean-nu um: communion a 1 an. “54—4“ manna-w runny: aux tonne-xx“ q : ax. I|“|III||I I|||III libel-Illa“ I+—+————fl»—--—--——-+ nu“: us an: inc-Had . run: an an trauma . lnxsl: u: we install-u , "nan us nor. muuea . wax: is par. tun-um , unsxx s; not. iuuued . w“ m cum, mu. Hum m configured; nut—Plug gun-z: my. Egfififi' ”g xwngg 4sz Chapter 4 : “ Advanced Information “ This chapter describes more Information about your Disk Andy. The following items are describes In detail. - Memory Expansion - RAID Controller - Updating Firmware Advanced Information - Installing Memory Modules : 1. Unscrew & Remove cover Flgure 1 Remove Cover " Advanced Information — Disk Array Controner Block Diagram Monitor Fort Ultra VWde SCSI control|er ‘ channel Advanced Information A Selup W1 00 Terminal Example : Setup W1 00 Terminal in Windows°95 _ Step 1 . Advanced lnformatlon Step 3. Entet a name for your Terminal. Advanced Information STep 5. Port porcmetel sefllngs Advanced Information Step 7. Select emula1e VI] 00 mode After you have flnlshed The VT100 Termlnol setup, you may resran your Dlsk Array and press “ cm + D “ keys ( In your Terminal 110 llrrk the Disk Array and Terrnlncr! together. 10 dlsplay the d|sk array Monhor U1i|fly Press f screen on your VH 00 Terminal. Advanced Information 2. Press " Y " to confirm the Updoie. Bhutan“ m husn Bmtzt Are you "may tn «unload nu ne- Axe you flute) (vim 21n'fle7(1/“l v Advanced Information 4. Locate the new Firmware file on your PC. mm»; ‘ M, a, _.|. D, Advanced Information /— 6. Type “ Go " 10 reconfirm and The firmware wiii begin to be reprogrammed. 7. Afier verifying, please resiari the Disk Array To acflva’fe me new firmware. llzvre dawn-um cm le- zap-nu, Bhutan nu has: emu: "an. In Wu {2.141 n same-4 one 11" hunt-”WI“ 1 Are you sun, ml. 1 new firm-m tu- zen-g“ not. 19 dun mums "sun um um "um. nuuucnn nu um!“ =nol=lm . mmuu- - oxelcs x ex. we. “max: “man: came“. ‘Gw' tn want: “- tumult. 09 am an gamma. cu Chapter 5 : " Hot Swap “ This chapter explains how to remove and install the “HotSwap' parts without tnterrupting the data access whtte the disk array Is on. The “Hot-Swap" parts Include : - Hard Dtsk Drives - Redundant Power Supply Unrts - Coating Fans Follow the steps below and refer to the diagrams to remove and Instatt the “Hat-Swap" parts. Hot Swap b. Genin pull-out the HDD tray Figure : Swap HDD [ Pun-om] Hot Swap __'_______’——————— d. Replace with a new Hard Disk Drive ll must be same capacl'ly or greater than the faulty dflve, if you replace with a Hard Disk Drive of lnsutficlent capaclly, the Dlsk Array‘s built-In buzzer wlll sound and the Intelligent Auto—Rebuild function wlll not be started. ©For best performance, we recommend you swap wlth an identical Hard Disk Drive. 9. Gently slide-ln the HDD tray and lock up to start the Auto-Rebuild When you have Installed the replacement dlsk drive, serew in all the screws and plug In the cables. You may now gently sllde in the HDD tray lnto the chassis and lock up lt. ©Data Auto-Rebuild wlll be started automatlcally when you lock up the HDD tray. Figure : Swap HDD ( Lock Up ] Hot Swap b. Replace with a new power supply unit Flgute : Swap PIS unh‘ [ swap with a new unh] Hot Swap _________,_____,_._—————————- Removing l installing Cooling Fans - Unscrew the Fan door and open the door to a 90 degree position i Caution : Be careful , the high speed rotating fans may harm uch the rotating Fons, if necessary, you. Don‘t to Unplug the Fan power connector first. 4—— Unscrew 4—— Unscrew “murmur " E. °llt|liililiiflti- fig Figure '. Swap cooling Fon \ Unscrew the Fan Door] Appendix ____/ Technical Speclficallons Microprocessor Inlel l960 RD Cache Memory Minlmum 4MB I léMB* ) Maxlmum 256MB (Mo 128MB SIMMs) DRAM Slots TWO Module Type 72 Pln SIMMs DRAM Type EDO (Extended Dala Output) DRAM Speed 60ns RAS access lime CAS access llme Parl'ly Ellher parl‘ly or non-parlly Read Cache Read—Ahead erle Cache Wrile Back* Flrmware Flash EEPROM .256K x 8 SCSI I/O Processor SYMBIOS 530875 Serial Port Ix R3232 (Asynchronous) Port Baud Role 19,200 (Bils Per Second] Dala Blls 8 Slop Bil I Parlly None RAIDLeveIs 0,1,0+l,30r5 Dala Transfer Role Up lo 40MBIs (Synchronous) SCSI ID Asslgnmenl 0 ~ 15 ( 0") Tagged-command queulng Up to 255 slmullaneous dala requesls Interface: Host Bus Disk Bus Drives Maximum Fault Tolerant Capacity Drive MTBF Host Requirement Operating Systems Data Rebuild LCD Display Panel Cooling Fans Power Supply Capacity AC Input Voltage Environmental Relative Humidity Temperature Operating : Storage : Safety testing Dimensions Weight " * " Default Settings Appendix Fast / Vlfide / Ultra-Wide SCSI-3 EIDE Fast ATA-2 (PIO Mode , DMA Mode) Hot Swap, User Replaceable Up to Six 3.5inch drives ( 1" height) >BDGB >500.000 hrs Host Independent 015 Independent and Transparent Automatic Data Regeneration 2 x 16 Characters 6cm Ball Bearing Fan 4 Fans Dual 250W Independent Power Supplies HO/22DVf +/10%) , 60/50HZ to% to 85% Non-condensing 5°C ~ 40°C 25°C ~ 60°C Under apply CE and FCC Class B 350mth) * i75mm(W] " 310mm(D) t l .5 kgs (W/O Disk Drive] "* Various trademarks belong to their respective owners. Hot Swap - Unplug the Fan connector - Unscrew the faulty coollng fan and replace with a good one filmportont ! The coollng ton‘s olr flow must polnt to the fan door, please refer to the label on the cooling fan. - Plug in the fan connector, close the tan door and screw it in ! Cautlon : The coollng ton wIII rotate immediately when you plug In the tan power connector. Flgure : Swap Coollng Fon ( swap with 0 new Fon ] Hot Swap o. Press the Power Supply Reset switch When you replace a new power supply unlt, you should then push the power supply reset swltch on the front panel or on the power supply frame to stop the buzzer alarm and llnk the two power supply units together. ©The new power supply unlt will llnk wllh the other unlt lmmedlotely and WIN start working otter you press the power supply reset swltch. and the buzzer wornlng nolse wIII stop. - Reset from the front panel Reset Here RGSGT Here ° D fl°llllflllflflllflfl°w Hot Swap Removing/ installing the Redundant P/S Unit I There are two LED indicators on the front panel which display the status of the redundant power supplies. While the power supply is working properly the two LED indicators light up " Green ", If any one of them fall, the LED Indicator will go off and the redundant power supply buzzer alarm will sound. When you need to replace the redundant power supply unit , refer to the redundant power supply status LED indicator on the front panel to find the failed power supply unit and follow these steps to swap it. a. Unscrew the taulty unit [For Safety reasons, you should switch otf the faulty unit‘s power switch] Unscrew Figure : Swap P/S unit ( Unscrew ) c. Unscrews and Unplug the ch|es Unplug Calres Figure : Swap HDD ( Unplug cables ) Hot Swap H01 Swap Removing / Ins1C|IIing Hard Disk Drives — 0. Unlock 1he HDD Tray (When 0 HDD error occurs, The HDD LED IndlcctOf llgh'rs up “ RED ") ' Flgure : Swap HDD( Uniock) Advanced Information 5. Press ' Y " to confirm to download the new firmware and type" Go “ to confirm the new firmware update. nature unnlamlnq tn: n" tun-n, shutdown um um amnur antes. m 10x: ready as «gnu-n m an “WEN!!!" v m nu sun ml) 7 Spain urn-n nu “man: u“. um clan-tax mum“. Cheakm- - mm! = oz, nu ”we “flute: smitter lnzex '¢'m' m “NI-u ne {ix-Illa. (in but '60‘ n “can"... Advanced Information 3. Select transfer ” Send Tex1 File ' and press Enrer. “n "1 “5,3! , fit 59. “can Smut: zue crmtex nun. Tu than. damn-n nun-n. ch: run mun. - _ Em “43.31.83 ’!h 17m “2"ij an;- 41 Advanced Information Start to Update Firmware 1. Move the cursor to " Update ROM " and press "Enter'. xxxxxx Rx In - nuww ---------------- llzznl 1x Disk Art-v Concrn11=x lVarsion zrzn 9/11/1998 lln=-cnn1xg RAID| Iflerlnl Na: 000003555005505 llRAID szzl | |T=snan 51:15] Cnnnecclon..lflx [lHnL spux= nx=k| |1n=cuxl=d lznnxv - flzflmyces I|5=c scsr x» | lflnsc than 1: 1:51 on ”Termination r |1=sc1nq aux cunnecnum s 5 ex. sez Password | Pressing disk nonunion 2 1 on. lsave : nucanl lTasnnw dun unusual: q 3 on. llvpdace gnu | |U=e LEA mung I ——+ IDISX: us Mr. menu“ ‘ |brsx= “1 na: lnlcullefl l rnxsx: 13 not anal-11:6 l rnzsx: us no: installzd r lDIsK: la nan lust-lied r lnrsxl a: non insc-lled . lune wm cal-m: 1am. nun; an: cauxvuua! mac-mug tunccmn “my. aa=kaatwa§maxalaatxa ¢a Unpredictable results will occur If firmware update ls attempted during Host computer and Disk Array activity. All activity to the controller should be stopped before updating llrmware. Advanced Information Step 6. Advanced lnformafion Step 4. Select a connedlng por'r In your Termlncl. Advanced Information Step 2. F? prelTelmindl Advanced Information Updaling Firmware l . Selup your VT] 00 Terminal Please configure the VT] 00 Termlnal semng lo the values shown below : W1 00 Terminal ( or compaflble ] set up -_ Advanced lnformolion 2. Install the memory a. The SIMM memory modules wIII only fit In one orienlaflon. b. Press the memory module flrmly Info sockel from a 45 degree angle, make sure rho? all the comacls are aligned wllh the socket. c. Push lhe memory module forward to a verllcal posh‘lon. From Panel IIlIlIlIIIll|l||Illlllll|IllIIlllllI|||IIIlllllllllllllllllllllll Figure : Controller Advanced Information Memory Expansion Your Disk Array comes wlth 1 (SM! of memory that Is expandable to a total of 256MB by installing additional memory modules. The optional memory expansion socket Is provided for Installing memory module. These expansion memory module can be purchased from your dealer. - Memory Type : 60NS Extended Data Output [ EDO )SIMMs . - Memory Size 1 Supports 729in SlMMs of 4MB, BMB, léMB, 32MB, 64MB, or i28MB The main-board supports many memory combinations for a total of up to 256MB. Memory sizes are arrived at by Inserting different combinations of SIMM DRAM modules Into the RAM sockets. The RAM sockets are numbered SIMM l and SlMM 2. The disk array controller will automatically detect the amount of memory Installed without any Jumper settings needing to be set.. The following table are the possible configurations. Do not use SIMM modules which have an extra logic chip that has been used to convert the memory module from asymmetric to symmetric. Configuration Save & Restart Select the Save & Restart functlon and press “ Enter “ to save and activate your selections. Warnlng! All data will be lost If you change the RAID level WAR NI NG Savlng configuratlon changes causes the dlsk array controller’s worklng parameters to change. Thls can produce unpredlctable results it it occurs during Host and Array actlvlty. All activity to the controller should be stopped before saving contlguratlon changes. Hulw-rll-Hrlllllll mm n max Anny Connmuzx tVetnon 2.21) 9/17/1995 Ille—Conxlg mum |s=zm Ila: uuuwasesuussuu Hum: Level | 11:5:an Sari-l com:ci=rn...0|( ”up; Sm: Mum nun-um new“ - sauna; 1|=ezscsx m | munch-nu max ”Tenn-nun l I‘l'estinw um: nonunion 6 5 oz. ll!“ Password | [mum asst camunion 2 1 or. ”flaw: 5 Restart] "Hung am: cumctien 4 a an ||w+»suv= i Renault-9 |u== Ln lad: I+—-l N0 lDlSKr us pm. installed I 1 117m: rm nu: tun-um z roux: in non nun-um: ! ‘h'nf’g‘u' it it l lust: rrs nut. inst-nan l thin: In an: mums | Husk: n nu: uncalled ‘ l 117“ mm can“; Ann. I run) an configured! ' l 43mm |u=»?1w zunctinn “any. “I 11 Save cur-oz, ls Configuration Termination - Terminating 0 SCSI chain is achieved by adding a Termincrior 10 " each end of The SCSI Bus. The Disk Array supporis active iermlnoflon in the controller‘s SCSI end. Terminciion "enabled" musi be $91 when ihe Disk Array is or one end of the SCSi Bus. _ m n . — i mm | ”mum! omvrr - mmxx n: 1 9 11m —-----—-------——|k=nu zx Max Array Conuuue: ¢ mamm- 1.21: s/n/lssa | IM—Cnnfiw lull” lsenn no: caucus Sumatra ”nun Laval i rruunq sari-l. Connection-”OX ”Hm: 5pm: mum Iluunued moon - nun-s “an sex! in 1 man cm 1: m'rox ”Tern-matmn | ITzutinv dink umutlnn s or. ||Se¢~Tethtenmv Hun.” aux cinnamon 2 x ||sa| man: | ITzlzinq aux connection 4| : ||Up| nun: |wu Ln Kong |+>7F77 ——+ IBISK: as not untamed ok. ox. Ts'm <1! [flu IDISI: n u: uncalled r mm: In nu installed ‘ Inn: 55 mt. installed s Inn; 5: m: luullad ! Hun: 51 an: installed ! Ilue Wm unnzlv tutu. nun) now maxim-zed! otkmnazaakxmawhahnaunxn— I l l I i Configuration Hol Spore Dlsk Select " Yes " to sel One Dlsk Drlve as 0 H01 Spore Dlsk. Thls Funcfion is valid In RAID level 5 and RAID level 3 ,fhe total Dlsk Drives installed must be more than 3 Dlsk Drives. ( Disk Drives number > 3 ] m. MM (1 wrnlvull um xx nunnn: 16mm v2,” LCD ————-----—--———-----------——A-——- ov'mn' nu Cunnquzancn | an!!! --«-----—------|uem 11 um: Bt‘y cnnznuer o lvunon 2.2» 9/11/1995 llfle-Cnntxg mum ls 1.1 Na: unnunsusnusaus mum sz=1 l ”(Icing Serial Cur-manna...“ “Hon an“: 1):st lust-um angry - azuyns Ilkkluc spun n:=x»+ luau cm 1: 1157 ex ||‘r=| my mama; um: cam-cum 6 s on. ||=e| [Testing aux canuccion z 1 OK‘ ||s-+-— nanny aux cunnzccim 4 J ox. “wane no! mu Lu Ina. mm: is an; mammal; ! IBEX: 53 nur- macuum v lnxsx: 01 our. mac-um t lblslx is nut manna ! taa§tl1unttxznxx4+ mm: in non use-nee mm: 112 not inst-Ned ”15: um! cantifl xntu. nun no: cantlyuxzfl! Int—Plug {unccifln “my. +¥nxa Conf guru on Re Conf RAID Select " No" for seh‘ing : " SCSI ID ", " Terminator ", " Password " Select ' Yes “ for setting on The configurations sznn 1: lamina: utility v2.2» - LCD - -- --—---»~-- No canzxwuzanaun | ------- leenl IX nxsn szny Controllet |Varuinn 2 2» 9/17/1993 lllz-Cnntxu Ralbl |S=tial n unannzsasuusaua Ilklo-ng-Cnnzxw BA!D-+ |T=-:an atzttl Connnucion...ux ||so| NO | |1ns=a11ea ugnuxv - Jzumvces Itse| YIS | |nnsv Chan 1: 1:51 on uru— + |Teszjnq um “men“ s 5 ox. ||5=c P-aauuzd | |T=uninq dxak cunngctiun z 1 on ||!-v= s Raga-rt] Iletinq axax cunngcclon 4 : ox. ||up¢uc= non | |v=e LaA lnflg |+- IDlsR: 15 net that-AXEG |nlsx= 1: no; xnsuuxxaa . luzsxx 11 nu: tnzcsllgd lnxsx: ts nan lnztsllafl Inxsx: 14 an: xnsznxx=a 4 IBISX: 52 no: Installed . luemmnuuwxum nun: not ”annual |lnL—Pluq 1mm"; zzudy. +ahaaltbhxfiat1natvlt‘—+ Configuroiion Configuration procedures (W1 00 Terminal) Main screen ReConflg RAID Yes RAID Level (5, 3,1, 0, 0+], None] He? Spore Disk [ Yes / No 1 SeiSCSIID [O~15] Terminoiion (Enable / Disable] ..—Y— Set Password [ 4 DigITCiI ) Save Configuration & Resiori Configuration 8. Termination Terminating a SCSI chain Is achieved by adding a terminator to each end of the SCSI bus. The Disk Array supports active termination at the controllers SCSI end. Termination “enabled“ must be set when the Disk Array is at one end of the SCSI Bus. 9. Set Password Press ” Enter " to activate the Password setting. When the cursor stop on the desired "number” or "character“, Using " i ' and " T " function keys to choose the desired characters and then press ' Enter “ to confirm it. it Press " ESC " function key for password "No Change" 10. Save Configuration & Restart Select the Save Configuration function and Press the ' Enter ' key to save and activate your selections. Wamlng I All data will be lost if you change RAID Levels . WARi‘JING Saving configuration changes causes the disk array controller‘s working parameters to change. This can produce unpredictable results It It occurs during Host and Array activity. All activity to the controller should be stopped before saving configuration changes. Configuration Starting the configuration 1 . Power-on the Disk Array. At the end of the power-on self test program, the LCD displays the current system status. 2. Press the front panel " Enter " key to access the buItHn configuration program. 3. When the screen displays the password prompt and asks you to " Enter‘Password “ 0... press “ Enter " 4 times to Input the defautt password [ default password is " 0000 " ] 4. Re-Configuration RAID Select " N0 " T0 IUST SGT up " SCSt |D# ", "Terminator', and "Password" Select " Yes " to SGT up " RAID Level " , " HOT spare disk " , “ SCSI ID# “ . "Terminator " r and “ Password " Configuration Confio uratlon from the front Panel The LCD Display front panel function keys are the primary user interface for the Disk Array. Except for the "Firmware update" ,crII configuration can be performed through this Interface. Function Key Definitions The four function keys at the top of the front panel perform the following functions : (1 ) Up Arrow/ Right Arrow Use to scroll the cursor Upward! Rightword U ) Down Arrow/ Left Arrow Use to scroll the cursor Downward / Leftward Use to confirm a selected Item Use to exit a selectlon Getting Started LCD Status Panel Located the LCD panel, the LCD status panel Informs you of the Disk Arrays current operating status at a glance. Upon activating a certain function, a symbol or icon corresponding to that function will appear in the display Mndaw. The symbol will remain In the display window Indicating the status of the Disk Array. Identifying the status on the LCD The following Illustration shows the symbols [characters] been used and their representation. A description of each of the symbols In LCD display window : _dentttying Di_k Drive Example of the LCD status dlsplay window : A r e n a EX OOOSXX R5 ID:0 this informs you : 0. HDD I ~ HDD 3 : Online b. HDD 4 : It Is a Spare disk drive 0. HDD 5 ~ HDD 6 : Not Installed d. RAID Level : In ' RAID Level 5 “ 9. SCSI ID : In ' ID# 0 " Gefiin Started LED Display & Function Keys ©LED Display Shown below is the LED Display. Please refer to the Illustration, the LEDs Inform you of the Disk Arrays current operating status. Upon activating a certain function, the corresponding LED Indicator should turn on indicating that the feature is engaged. Figure : LED Display -_ 1. Power Unit I indicator [git up : Green‘ , it lights when the Power Unitl is plugged and operating tunctiorralty. 2‘ Power Unit 2 Indicator iight up : ‘Green" , it lights when the Power Unit 2 is plugged and operating tmctionalty. 3, Host Computer Access light up: Nairow‘ , Indicates Host Indicator computer Is currentty accessing the Disk Array Ar HDD Power-On Indicator light up : "Green' , It lights men the HDD irtme Is locked (rid Power-On 5. HDD Access Indicator light up : "Yellow' 4 when HDD Is messed or HDD Error Indicator light Lp : "Red" . when the HDD not Imiulied or HDD error Getting Started Host Linkage _ Wrth the HDD[s] Installed correctty, you are ready to connect the Dlsk Array to your Host computer. Use a shielded twlsted-palr SCSI cable to connect your Host computer to the Dlsk Array's bulrl-In 68 pIn SCSI adapter port. _ Connect the Host computer as shown below : Host Computer a Flgure : Host linkage For safety reasons, make sure the Dlsk Array and Host Computer are turned off when you plug-In the SCSI cable. Getting Started Step 3 1 Insert HDD into the tray Step 4 : Screw In the hard drlve. ( Use the correct slze, type and thread 1 Step 5 : Cabling, Connect the Data cable & Power cable Cuang Flgure : Installing HDD step 3, 4, 5 Getting Signed Power Source Choosing a Working Voltage The Arena can run ellher on AC 1 10V (+/10%) or AC 220V [+/10%), Slide the AC voilage select switch on both of The Two power supply units to the correct position which corresponds with lhe wall oulle’r supply voriage. ‘ V l Wrong AC Vollage lnpu’l will harm the power supply and cause serious damage lo lhe Disk Array. Figure : Power Source This Disk Array is supplied with an AC power cord equipped with a 3-wlre grounding Type plug. This is a safely feature and ii is Imponam to only use a 3-wlre grounded mains power cord. Gettin Started Identifyin- Parts of the Disk Arra — Front VIew _ Figure : Front VIew l . LCD Status Dlsplay Panel ‘ HDD Trays 1 ~ 6 Power Supply Switch ( On / Off ) Function Keys [ 1 , l , Enter, ESC) Power-On Indlcator [ PWR Unlt "l , PWR Unlt 2 ] Power Supply " Norm “ Reset Host Computer Access Indlcotor HDD Tray Lock [ Lock/ Unlock) . HDD Status Indlcator w [From left to rlght: Error (Red), Access [Yellow], Power-On [Greenn ___i__._; cpspweew Getting Started Unpacking & Checklist Before unpacking your Disk Array, prepare a clean and stable place to put the contents of your Disk Arrays shipping comalner on. Altogether, you should tlnd the followlng Items in the package : 0 The Disk Array ' One AC power cord ' One External SCSI cable 0 Keys 0 User Manual Remove all the Items from the carton. If anything is missing or broken , please Inform your dealer Immediately. Save the cartons and packing materials that came with the Disk Array. Use these materials for shipping or transporling the Disk Array. Figure : Checklist Introduction Mum-SCSI Format su . - -rt The Disk Array provides one Ultra Wlde SCSI channel for connectlng to your host system. Wlth proper cabllng, It may support Narrow or Wlde: Standard, Fast or Ullra SCSI formats. I slngle ended ] Overall cable length For secure data transfer , please refer to the cable length limitations as below : * Cable length = External Host cables length + Inlemal Host cable length * Standard Disk Array External cable length = 900m ( 3 ft) * Standard Dlsk Array lrrlemal cable length = 20cm SCSI Clock Data axlmum Cable Remark Type Rate Rate wig. Ie Requlred Ultra wide HPD 68»- (16 blt] MHZ MB/sec HPD 68 pln Wlde SCSI (16 bIT) 1 0 20 MHZ MB/sec HPD 68»- HPD 68 pln Ultra SCSI 20 20 2m HPD 68--- [8 bit) MHZ MB/sec HPD 50 pln MHZ Introduction Summary Comparison of RAID Levels Common Description Arrays D010 Name Copocrry Reliability Minster Capaclry Data dsmbu‘red across me disks Infhearray. (N) Low Very No redundcm Inforrnaflon disks ngh errarlng All 1' VerV Transfer and alsmtxned across all Disks wflh dam disk. Redundant Pamy Infarmmlon stored on a dediccned parfly disk Independent Dcna sectors are dlsrnbured Access Array as with disk sirlplng with Roraflng redundanf Inbrmaflon Is lnTelspelsed with user data. Introduction RAID Level 5 : A " Independent Access Array with Rotating Parity - High Data Reliability & Transfer Capacity ‘ Disk 1 Disk 2 Dlsk 3 Disk 4 Disk 5 Disk 6 Physical P 1 Parity When RAID Level 5 technology is combined with cache memory to improve Its write performance, the result can be used In any applications where general purpose disks would be suitable. For read only or read mostly application VO loads, RAID Level 5 -~ performance should approximate that of 0 RAID Level 0 array. In fact. for a given user capacity, RAID Level 5 read performance should normally be slightly better because requests are spread ’ across one more members than they would be In 0 RAID Level 0 array of equivalent usable capacity. 0 A RAID level 5 array performs best In applications where data and I/O load characteristics match their capabilities : - Data whose enhanced availability is worth protecting, but for which the value of full disk mirroring is questionable. - High read request rates. _ - Small percentage of writes in I/O load. Pi; Introduction " RAID Level 3 : ‘ " Parallel Transfer Disks with Parity " High Data Reliability & Highest Transfer Capacity ‘ Disk 1 Disk 2 Disk 3 Disk 4 Disk 5 Disk6 Physical P:Parity RAID Level 3 technology use a dedicated parity disk to store redundant lnformat10n about the data on several data disks. RAID Level 3 Is an excellent choice for applications which require single stream V0 with a high data transfer rate. RAID Level 3 is optimal for applications in which large block of N sequential data must be transferred quickly these applications are usually of one of these types: 0 They operate on large data objects such as graphical Image processing. CAD/CAM tiles, and others. 0 That are non-interactive applications that process large data sequentially. They usually request a large amount of data (32KBytes or more) wrth each I/O request. A __L__; Introduction 0 RAID level 0 arrays are not particularty suitable for : - Appllcaflons whlch make sequential requests for small amount of — data. These appllcations will spend most of fhelr I/O tlme walling for dlsks to spln, whether or not they use striped arrays as storage medla. — - Applicatlons which make synchronous random requests for small ~ amounts of data. Introduction General RAID Conce ots — Correct installation of the disk array requires an understanding of _ RAID technology and the concepts described in this section. Definition , RAID Is an acronym of Redundant Array of Independent Disks . A RAID Is 0 Disk Array In which part of the storage capacity Is used to record redundant Information about the user data stored on the remainder of the storage capacity. The redundant Information enables regeneration of user data In the event that one of the —~ Arroy's member Disks or the access path to it falls, Benefits of RAID ~ 1 . Secure Data RAID Is on emerging storage technology with the potential to revolutionize the data storage technology. A typical RAID unit contains a set of disk drives, typically two to six, which appear to the user to be equivalent to a single large capacity disk drive. The a remarkable benefit of disk array Is that if any single disk In the RAID falls, the system and array still continues to function without loss of data. This Is possible because the redundancy data Is stored on e separate disk drives and the RAID can reconstruct the data that was stored on the failed disk drive. ' 2. Increases system performance ' As the effective seek time for finding data on a disk can ~ potentlaity be reduced by allowing multiple simultaneous access , of different data on different disks. Utilizing parallel reads and writes of the data spread across the disks In the array, the data transfer rate can be Increased significantly over that of a single a disk. 3. Easy maintenance RAID system maintenance Is typically simplified because It Is easy ‘ to replace Individual disks and other components while the system continues to function. ( Hot swap support ] —_i_“ Introduction This section provides an overview of the features. For more detailed Information, please refer to the technical specifications appendix at the end of this manual . Arena includes the following features : Easy Operation As everyone knows, conventional Disk Arrays are designed for experienced computer specialists. To solve complicated and time consuming operating procedures, Arena came up with a revolutionary Idea : innovative Plug And Play RAID As compared to a conventional Disk Arrays long—winded setup procedures. Arena can be ready to go after using the simple step by step built-In setup program, Ultra High performance Arena combines an extremely high speed microprocessor with the latest chip set, SCSI hardware technology, perfect firmware and an artistic design. The result is one of the fastest, most reliable Disk Array systems on the market. - Supports virtually all popular operating systems platforms and network environments because It works Independently from the 0.5. - Fast / Wide / Ultra Wide SCSI channel interface to your Host computer, up to 40MB data transfer rate provides the processing and access power for you to handle complex and large files. - Selective SCSI ID 0 ~ 15 , support with active termination, - Tagged-command queuing : allows processing of up to 255 simultaneous data requests. ~ Selective RAID levels 0, 1, 0+], 3 or 5. - Build-In léMB cache memory, expandable up to 256MB. ~ Serial communication port ( Monitor Port ) permits array controller operation through a standard VTiOO terrnlnai (or equivalent]. Configuration Procedures Starting the Configuration .. Configuration from VII 00 Terminal Mode Configuration Procedures Main Screen 3-9 Re~conflg RAID 3-10 Set RAID Level 3-1 1 Hot Spare Disk 3-12 Set SCSI |D# 3-i 3 Termination 34 4 Password 3-15 Save & Restart 3-16 Chapter 4 : Advanced Information Memory Expansion RAID Controller Block Diagram Updating Firmware Setting Up VT] 00 Terminal Emulation in Windows 95" -» Start to Update Firmware 4-14 Chapter 5 : Hot Swap Removing / Installing Hard Disk Drive ----------------------------- Removing / installing Redundant Power Supply Unit Removing / Installing Cooling Fan M“ Appendix : Technical Specifications About This Manual This manual serves as a useful guide you can refer to when you wish to Install and operate your Disk Array. It Includes the following information : 0 Chapter 1 : “ Introduction " Introduces you to your new Disk Array's features and general RAID concepts, 0 Chapter 2 : " Getting Started" Describes general inforrnatlon about this Disk Array. 0 Chapter 3 : “ Conflguration " Provides a Quick and Easy way to setup this Dlsk Array. 0 Chapter 4 : " Advanced Information ' Describes Information In more detail. 0 Chapter5 : “ Hot-Swap " Describes Hot-Swap components, 0 Appendle : " Technical Specification " mutton 11. 12. 13. 14. 15. 16. if an extension cord or a power center is used with this product, make sure that the total of all products plug into the wall outlet does not exceed the ampere rating. Do not place the Disk Array where the cord will be walked on. Never push any kind of object Into this product Through cabinet gaps and openings, they may touch dangerous voltage points cause a risk of fire or electric shock. Unplug the power cord from the wall outlet before cleaning. Keep the Disk Array dry. Do not use liquid cleaners, aerosol cleaners, or a wet cloth. Use a damp cloth for cleaning. Except as specifically explained In this Users Manual, please do not attempt to service this product by yourself. Opening or removing the covers may expose you to dangerous voltages. Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions : 0 If this product has been exposed to water or any liquid. 0 If the product has been dropped or the cabinet damaged. Copyrrghl No’rrce ©1998 MaxTronio Internalioncrl Co., le. All rights reserved. No pan‘ of this When malerlal may be reproduced, stored in a retrieval sysrem, used in any form or by any means, electronlc or mechanical, photocopying, recordlng, or otherwise, wl‘lhoul the wrll'len permisslon of MaxTronic Inlerncxllonal CO,, LTD.
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