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Chapter 3: Subsystem Connection and Operation

SCSI Connection

Overview

3-1

Chapter 3

Subsystem Connection

This chapter outlines some general configuration rules you should use when

configuring a storage system and introduces basic information about SCSI

cables and SCSI topologies for the Galaxy RAID subsystem. You can setup

the subsystem using these topologies or use them as a guide for developing

your own unique topologies.

3.1 SCSI Connection Overview

The GALAXY RAID subsystem supports two (2) SCSI channels and two

(2) dual-stacked SCSI connectors using

SCSI-320

(also known as Ultra-320

SCSI), the latest iteration of the SCSI bus standard. SCSI-320 enables

maximum data transfer rates of up to 320MB/second per channel between

the host computers and the subsystem. This is twice as fast as the Ultra-160

standard, allowing users to store data at the fastest SCSI speeds available.

3.1.1 SCSI Cables

One (1) external SCSI round cable (GAL-9270UJBODCab) is provided with

each GALAXY RAID for host connection. If you wish to use a second SCSI

cable to connect the second host channel, the second cable must be

purchased separately. Purchase only high quality SCSI-320 cables from a

reputable manufacturer. To ensure optimum GALAXY RAID performance,

it is necessary to use proper, high quality, durable SCSI-320 cables. Failure

to do so will result in downgraded performance.

3.1.2 SCSI Ports on the Controller Rear Panel

The GALAXY RAID is equipped with two (2) dual-stacked VHDCI SCSI

connectors on the back of the enclosure for connecting the subsystem to a

host computer and/or to daisy-chain other GALAXY RAIDs. (See

Figure 3-

) The connectors on the bottom of the controller rear panel are for data

input and the connectors on the top are for data output. Each dual-stacked

VHDCI connector is specified as “Channel # In” or “Channel # Out” port.

The IN ports are designed to connect host computers while the OUT ports

are used to daisy chain additional GALAXY RAID subsystems.

Содержание Galaxy HDX2-2430S-16U4D

Страница 1: ...Galaxy Raid Model GHDX2 2430S 16U4D 16 Bay U320 SCSI to SATA II RAID Subsystem Installation and Hardware Reference Manual Version 060107 Version 1 0 08 2005...

Страница 2: ...and Hardware Reference Manual ii Contact Information Americas Rorke Data Inc 7626 Golden Triangle Drive Eden Prairie MN 55344 USA Tel 1 800 328 8147 Fax 1 952 829 0988 sales rorke com techsupport rork...

Страница 3: ...ontents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose Furthermore Rorke Data reserves the right to revise this publication and to ma...

Страница 4: ...any interference received including interference that may cause undesired operation NOTE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Par...

Страница 5: ...sing the device and for the area surrounding the apparatus This standard covers only safety aspects of the above apparatus it does not cover other matters such as style or performance CCC for Power Su...

Страница 6: ...3 Firmware FW and RAIDWatch GUI 1 13 1 4 4 Audible Alarms 1 13 1 5 HOT SWAPPABLE COMPONENTS 1 13 1 5 1 Hot swap Capabilities 1 14 1 5 2 Components 1 14 CHAPTER 2 HARDWARE INSTALLATION 2 1 INTRODUCTION...

Страница 7: ...4 4 4 Controller Module LEDs 4 9 4 4 5 LAN Port LEDs 4 10 4 4 6 BBU Module LED 4 10 4 4 7 PSU LEDs 4 12 4 4 8 Cooling Module LEDs 4 12 4 5 AUDIBLE ALARM 4 13 4 5 1 Default Threshold Values 4 14 4 5 2...

Страница 8: ...PIN OUTS C 1 VHDCI SCSI PORT PINOUTS C 1 C 2 DB9 AUDIO JACK PINOUTS C 2 C 2 1 COM1 Serial Port Cable C 2 C 2 2 COM2 Serial Port Cable to UPS C 3 C 3 NULL MODEM C 4 C 4 ETHERNET PORT PINOUTS C 5 C 5 M...

Страница 9: ...s or replaceable modules should be removed Make sure that during operation all enclosure modules and covers are securely in place Be sure that the rack cabinet into which the subsystem chassis will be...

Страница 10: ...ot user serviceable Describe the configuration options of firmware using terminal emulation programs or the RAIDWatch GUI software that came with your subsystem Give a detailed description of the RAID...

Страница 11: ...teps you should follow in order Important information that users should be aware of is indicated with the following icons NOTE These messages inform the reader of essential but non critical informatio...

Страница 12: ...cess may cause unrecoverable errors and system down time Always consult technical personnel before proceeding with any firmware upgrade NOTE The firmware version installed on your system should provid...

Страница 13: ...ed hardware XOR for RAID6 acceleration A RAID6 array configuration allows two 2 disk drive failures to occur at the same time This feature marks a giant step forward for providing a higher level of da...

Страница 14: ...4 layout for sixteen 16 3 5 inch hard disk drives The subsystem comes with an LCD keypad panel If your subsystem comes an LCD keypad two 2 handles will be available on the front of the subsystem The...

Страница 15: ...owing components RAID controller module A RAID controller module is installed in the GALAXY The controller module contains a RAID controller board a module bay for the optional battery module and a DD...

Страница 16: ...andles 445mm W x 130mm H x 488 2mm L 17 5 x 5 1 x 19 2 inches 1 3 Subsystem Components The subsystem houses many active components and most of them can be accessed through either the front or rear pan...

Страница 17: ...t of the tray indicate drive operating statuses A key lock on each drive tray secures the hard drive in place while a release button can be used to release the locking mechanism should the need arises...

Страница 18: ...or a hot replaceable BBU module The controller module contains no user serviceable components Except when installing upgrading the cache memory inside the controller module should never be removed or...

Страница 19: ...the other end of the Ethernet cable to a network switch hub port of the local network COM ports Each controller module comes with two 2 serial ports The COM1 port is used for accessing the controller...

Страница 20: ...e unfinished writes in cache memory The BBU module is hot swappable New Feature The battery cell pack listed above comes with an EEPROM to record the date of installation and when the one year life ex...

Страница 21: ...PSU comes with a single power socket for power cord plug in and a power switch to turn the subsystem on and off Two 2 embedded cooling fans provide sufficient airflow to keep the PSU cool A single LE...

Страница 22: ...cient airflow across components Under the following conditions cooling fans raise their rotation speed to increase the airflow 1 Component Failure if one cooling fan a PSU or a temperature sensor fail...

Страница 23: ...ring methods that provide you with continual updates on the status of the system and individual components The following monitoring features are included in the subsystem 1 4 1 I2C bus The following e...

Страница 24: ...rectify the problem immediately Event notification messages indicate the completion or status of array configuration tasks and are always accompanied by two 2 or three 3 successive and prolonged beeps...

Страница 25: ...able Components 1 13 1 5 2 Components The following components are hot swappable Power supply units PSUs Cooling modules BBU Hard disk drives NOTE Instructions on how to replace these hot swappable co...

Страница 26: ...Galaxy Raid GHDX2 2430S 16U4D Installation and Hardware Reference Manual 1 14 Hot swappable Components This page is intentionally left blank...

Страница 27: ...installation environment The GALAXY RAID subsystem must be installed in a static free environment to minimize the possibility of electrostatic discharge ESD damage See Section 2 3 1 2 Component check...

Страница 28: ...om AC outlets before servicing or cleaning DO NOT use liquid or sprayed detergent for cleaning Use a slightly moistened clothe for cleaning 4 Rack mounting the GALAXY RAID subsystem The subsystem is i...

Страница 29: ...arked on the product s electrical ratings label The voltage and current rating of the power cord should be greater than the voltage and current rating marked on the product 10 All cautions and warning...

Страница 30: ...s eject levers or the module s metal frame faceplate only Avoid touching the PCB board traces chips or connector pins 19 Always secure every enclosure module with its retaining screws or make sure it...

Страница 31: ...e installed prior to installing the hard drives Installing the subsystem into a rack or cabinet requires at least two 2 persons See Section 2 9 WARNING DO NOT USE ONLY THE FRONT EAR HOLES TO MOUNT THE...

Страница 32: ...installation procedure As you complete each step check off the Done box on the right Please use this flowchart in conjunction with the instructions that follow Figure 2 1 Installation Procedure Flowc...

Страница 33: ...and its manual Installation and Hardware Reference Manual this document Application Note and the SCSI to SATA RAID Subsystem s Operation firmware Manual 2 5 1 Pre installed Components The following c...

Страница 34: ...chase the correct hard drives CAUTION The hard drives and drive trays should only be installed into the subsystem after the subsystem has been mounted into a rack cabinet If the hard drives are instal...

Страница 35: ...ed into the enclosure even if they do not contain a hard drive If the trays are not installed into the enclosure the ventilation required for cooling will not be normalized and the subsystem will over...

Страница 36: ...be done smoothly and gently See Figure 2 5 Figure 2 5 Installing a Drive Tray Step 4 Close the front flap on the drive tray Make sure the front flap is closed properly to ensure that the SATA connect...

Страница 37: ...r system 2 8 2 BBU Warnings and Precautions Install or replace the BBU with BBUs supplied by your Galaxy subsystem vendors only Use of battery cells provided from another source will void your warrant...

Страница 38: ...cedure To install a BBU into the controller module please follow these steps Step 1 Prior to installing the BBU power off the subsystem or restart the subsystem after the installation For the power of...

Страница 39: ...If the subsystem has been powered on the LED should start flashing to indicate that the BBU is being charged When the BBU is fully charged the LED will be turned off See Figure 2 10 Figure 2 10 BBU LE...

Страница 40: ...wo people will be required to install the chassis Disk drives should only be installed after the chassis is properly mounted The chassis can weigh about 24Kgs without disk drives The following tools a...

Страница 41: ...ions There are five 5 mounting holes for 6 32 screws on the sides of the enclosure for use with slide Figure 2 12 Enclosure Side Mounting Holes 2 Use M5 or M6 pan head screws to secure the chassis to...

Страница 42: ...ble 3 1 1 SCSI Cables One 1 external SCSI round cable GAL 9270UJBODCab is provided with each GALAXY RAID for host connection If you wish to use a second SCSI cable to connect the second host channel t...

Страница 43: ...an external terminator when a subsystem acts as the last device in the daisy chain configuration The on board terminator default is enabled If the subsystem is not the last device in the daisy chain...

Страница 44: ...f multiple hard drives Namely create two logical drives in your subsystem and associate them each with a host ID on separate host channels When cabling follow all SCSI channel specifications Pay atten...

Страница 45: ...Operating using a protected capacity decreases the chance of server downtime The logical arrays can be associated with different host IDs on separate host channels so that if one cable link fails the...

Страница 46: ...CH1 Drive Via system bus through the backplane Configuration Information RAID Controller 1 Host Server 2 Data Path Connection Dual data paths Host Channel Bandwidth 640 MB s Max Number of Drives 16 Th...

Страница 47: ...er may use separate capacity volumes or share volumes using file locking or access management utilities Depending on I O characteristics each configured array should be properly optimized either for R...

Страница 48: ...d CH1 Drive Via system bus through the backplane Configuration Information RAID Controller 3 Host Server 2 Data Path Connection Dual redundant data paths Host Channel Bandwidth 640 MBps Max Number of...

Страница 49: ...u may also partition a logical capacity into two or more volumes and let each server access separate volumes 3 3 2 Daisy Chain Procedures Step 1 Connect the RAID subsystem to the host computer Use the...

Страница 50: ...aths In a mission critical application redundant data paths to different LDs logical drives or logical volumes LVs can be created To do this logical units LDs or LVs are mapped to both host channels C...

Страница 51: ...Galaxy RAID GHDX2 2430S 16U4D Installation and Hardware Reference Manual 3 10 Daisy Chain This page is intentionally left blank...

Страница 52: ...ays ALL the drive trays whether or not they have a hard drive have been installed into the subsystem Cable connections The host ports on the subsystem have been correctly connected to host computer s...

Страница 53: ...Switches CAUTION Although the PSUs are redundant and a single PSU can provide sufficient power to the subsystem it is advisable to turn both the power switches on If only one 1 PSU is operating and th...

Страница 54: ...ally and experiencing no problem after being powered on the LEDs on the PSU should light Green constantly 6 Firmware and RAIDWatch The overall status of the system can be checked using the pre install...

Страница 55: ...r cursor bar and press Enter on the last category View and Edit Event Logs More details on firmware configuration can be found in the firmware Operation Manual in your product Utility CD The MUTE butt...

Страница 56: ...subsystem using the power switch on each PSU Once the subsystem is powered down other devices that are connected to the subsystem can be sequentially powered down 4 3 Subsystem Monitoring Overview Th...

Страница 57: ...N Messenger ICQ SMS Short Message Service and the configuration utility screen Configuration Client helps prevent blind time and keeps you constantly aware of the status of the storage components Inst...

Страница 58: ...egrity of the subsystem components The list in Table 4 1 shows the number of LEDs that reside on each component Component LEDs per module Total LEDs LCD Panel 3 3 Drive Trays 2 32 Controller Module 6...

Страница 59: ...e 4 2 LCD Panel LED Definitions NOTE During the power on process the ATTEN LED will light up steadily Once the subsystem successfully boots up the ATTEN LED is turned off 4 4 3 Service Button The serv...

Страница 60: ...is healthy Note that a faulty drive might temporarily appear healthy until the first I O is distributed to it or accessed by the periodic firmware check RED indicates that the drive is faulty Table 4...

Страница 61: ...esence Green ON indicates the presence of a BBU backup module Host Busy Green Rapidly Blinking to indicate traffic on the host bus Drive Busy Green Rapidly Blinking to indicate traffic on the drive ch...

Страница 62: ...on your subsystem These updates may require restoring firmware defaults before firmware upgrade can actually take place Before using the button it is highly advised to practice the following Stop host...

Страница 63: ...s with an LED that indicates the status of the current battery charge module failure or when battery cells are being replenished Figure 4 7 BBU Module LED LED Name Color Status BBU Status Amber ON ind...

Страница 64: ...m other sensors within the enclosure Airflow might have been disrupted by the absence of one or several major modules or the failure of a cooling fan Once the thermal condition is improved charging wi...

Страница 65: ...le LED will remain off even if the power cable has been plugged in but the power switch is not turned on Table 4 7 PSU Module LED Definitions 4 4 10 Cooling Fan LEDs Each cooling fan LED corresponds t...

Страница 66: ...been assigned a range of values between which they can fluctuate If either the upper or lower thresholds are exceeded an audible alarm will automatically be triggered The alarm will also be triggered...

Страница 67: ...ailed Devices If any of the following devices fails the audible alarm will be triggered Cooling modules PSU modules BBU Hard drives NOTE When the detected CPU board temperature exceeds a preset thresh...

Страница 68: ...lacing it the internal airflow will be disrupted and the system will overheat causing damage to the subsystem All of the following components can be replaced in case of failure 1 Controller modules Se...

Страница 69: ...n lead to irreparable damage When removing a controller module from the subsystem ensure that your applications running on servers have been properly closed users notified of the down time all cached...

Страница 70: ...2 It is recommended to remove BBU before handling the controller BECAUSE once a controller is removed from chassis BBU will discharge to support the cache memory If you replace a DIMM module with sup...

Страница 71: ...the host or cascaded enclosures Ethernet cables for the management purpose and any cables connecting to the COM ports Step 6 Remove the screws from underneath each eject lever See Figure 5 2 Figure 5...

Страница 72: ...dule please see Section 5 3 and Section 5 4 Step 2 Install the DIMM module and BBU onto the new controller module making sure that the modules are securely in place See Section 5 3 Step 3 Install the...

Страница 73: ...dule is preferred the pre installed module can be removed and a replacement installed Replacement and installation instructions are described fully below 5 3 1 DIMM Module Considerations The following...

Страница 74: ...skip this section If a DIMM module fails or if a DIMM module with a higher memory capacity is required the onboard DIMM module can be replaced To replace the DIMM module Step 1 Prepare an anti static...

Страница 75: ...the BBU handling precautions below before proceeding with the replacement procedure A BBU failure can result from the following 1 A BBU has lost its ability to hold electrical charge This may be the...

Страница 76: ...with a hammer step on it or throw it These actions could damage or deform it and internal short circuiting can occur possibly cause functional defects acid leak and other hazardous results If a BBU l...

Страница 77: ...e LED should start flashing to indicate that BBU is being charged When the BBU is fully charged the LED will be off NOTE A new or replaced BBU takes approximately seven 7 hours to charge to its full c...

Страница 78: ...wo serially aligned cooling fans in the rear section When the PSU is removed from the chassis the cooling module is also being removed Printed text on PSU handle Before you insert a new PSU be sure th...

Страница 79: ...ace a PSU please follow these steps Step 1 Turn off the PSU Using the power switch located on each PSU s rear facing panel See Figure 5 10 Step 2 Disconnect the power cord that connects the PSU to the...

Страница 80: ...to prevent the subsystem from overheating Step 6 Insert the replacement PSU into the subsystem Make sure the ejection handle is at its up most position so that the saddle notches on the edges of the h...

Страница 81: ...ager software or the Configuration Client can notify you Replacing a cooling module Once you are notified that a cooling module has failed it should be replaced as soon as possible A failed cooling mo...

Страница 82: ...1 Make sure the PSU handle is in the down position so that you can grab the edge of the cooling fan assembly Step 3 2 Use your thumb and middle finger to seize the cooling assembly your thumb by the u...

Страница 83: ...all the replacement module by aligning it with the module bay on the PSU module and gently lowering it into The fan outlet should be aligned with the PSU faceplate and that the side with screw holes s...

Страница 84: ...tem Failure to remove the drive tray from the subsystem after the flap has been opened may cause data errors Slowly remove a faulty drive When removing a drive tray from the subsystem pull the drive t...

Страница 85: ...its metal cover and avoid touching its circuits part and interface connectors Step 1 Identify the drive tray that contains a hard drive indicated as faulty Step 2 Make sure the key lock is in the unl...

Страница 86: ...ent purpose e g cloning the members of a logical drive or Copy Replace and then gently and carefully withdraw the drive tray from the chassis See Figure 5 18 Figure 5 18 Removing a Drive Tray Step 5 R...

Страница 87: ...Galaxy Raid GHDX2 2430S 16U4D Installation and Hardware Reference Manual 5 20 Replacing a Failed Hard Drive This page is intentionally left blank...

Страница 88: ...Operating 0 to 12 000 ft Packaging 0 to 40 000 ft Power Requirements Input Voltage 100VAC 9A 240VAC 4 5A with PFC auto switching Frequency 47 to 63Hz Power Consumption 530W Dimensions With Forearm Ha...

Страница 89: ...FCC Class B CE CB UL60950 IEC 60950 BSMI Shock Half sine Operating 5G peak 11ms duration Non operating 15G 11ms duration Vibration Operating 5 to 500Hz 0 2G X Y Z Non operating 5 to 500Hz 1 0G X Y Z...

Страница 90: ...r write back Cache Memory Up to 2GB DDR RAM DIMM memory with without ECC Number of LUNs Up to 32 per SCSI ID Multiple Target IDs Host Channel Yes NCQ support Yes Aliases for Target IDs Yes Firmware on...

Страница 91: ...Voltage DC 12V Acoustic Noise High speed 51dB max Low speed 46dB max Temperature Operating 10 to 60 C Storage 20 to 70 C A 5 RAID Management Specifications Configuration Text based firmware embedded u...

Страница 92: ...and perpetual clone functions Battery Back up Option Yes Sensors and Module Presence detection through an I2 C serial bus Yes Automatic Drive Failure Detection Yes Automatic Rebuild on Spare Drives Ye...

Страница 93: ...Galaxy Raid GHDX2 2430S 16U4D Installation and Hardware Reference Manual A 6 Fault Tolerance Management This page is intentionally left blank...

Страница 94: ...L 9273ECPSU Power supply module RoHS compliant 530W capacity Cooling Fan Module GAL 9273ECFanMod Cooling fan module for the enhanced 16 bay subsystems LCD Module GAL 9270CLCD LCD keypad and screen mod...

Страница 95: ...GAL 9273CBTE Li Ion battery cell pack with four 4 battery cells An EEPROM is implemented to record the installation date Firmware will notify a system administrator when the approximate one year life...

Страница 96: ...ule for all Galaxy subsystems GAL DDRESCMB 2GB DDR DIM module for all Galaxy subsystems GAL 9273CSlider36 Side rail assembly for mounting Galaxy 3U enclosures into rack 23 36 rack depth GAL 9273CSlide...

Страница 97: ...Galaxy Raid GHDX2 2430S 16U4D Installation and Hardware Reference Manual B 4 Accessories This page is intentionally left blank...

Страница 98: ...12 35 SD12 2 SD13 36 SD13 3 SD14 37 SD14 4 SD15 38 SD15 5 SDP1 39 SDP1 6 SD0 40 SD0 7 SD1 41 SD1 8 SD2 42 SD2 9 SD3 43 SD3 10 SD4 44 SD4 11 SD5 45 SD5 12 SD6 46 SD6 13 SD7 47 SD7 14 SDP0 48 SDP0 15 GN...

Страница 99: ...controller module to the serial port of a management computer The serial port s defaults and requirements are 1 Set at 38400 baud 8 bit 1 stop bit and no parity 2 In most cases connecting RD TD and S...

Страница 100: ...Use this cable to connect the COM2 port to a UPS PN GAL 9270CUPSCab Figure C 2 Connector Pinouts Adapter Cable for COM2 CN1 Pin Number Pin Name 1 Ground 2 TXD 3 RXD CN2 Pin Number Pin Name 1 TXD 2 RXD...

Страница 101: ...ull Modem C 3 Null Modem A null modem has its wires swapped and is necessary for connecting COM1 CN2 to the serial port of a management computer PN GAL 9011 Figure C 3 Null Modem Pinouts Swap pin 2 an...

Страница 102: ...ts Figure C 4 Ethernet Port Pinouts Pin Pin Name Pin Pin Name 1 LAN_TXP 5 N2 2 LAN_TXN 6 LAN_RXN 3 LAN_RXP 7 N1 4 N2 8 N1 Table C 5 Ethernet Port Pinouts C 5 Main Power IEC type receptacle Unless spec...

Страница 103: ...Galaxy Raid GHDX2 2430S 16U4D Installation and Hardware Reference Manual C 6 Main Power This page is intentionally left blank...

Страница 104: ...ication Cable Part Number GAL 9270CUPSCab The subsystem is shipped with a customized audio jack to DB9 serial communication cable The cable is used to connect the controller module on a subsystem to a...

Страница 105: ...rial port is 38400 and must be changed to 2400 For instructions on changing the baud rate please refer to the SCSI to SATA RAID Subsystem s Operation Manual that came with the subsystem D 4 3 Connect...

Страница 106: ...ystem after the subsystem has been powered on but you will have to trigger the firmware to allow the subsystem to detect the UPS If you are daisy chaining systems together be sure to make all the cabl...

Страница 107: ...city and the UPS has either been disconnected from the AC power supply or the AC power supply has been disrupted The write policy will be changed from the default write back to write through If this m...

Страница 108: ...l BPL Write Policy Status UPS connection is absent N A N A Write back UPS connection detected N A N A Write back Warning UPS AC Power Loss detected Disconnected BPL 50 Write through Warning UPS Batter...

Страница 109: ...Galaxy Raid GHDX2 2430S 16U4D Installation and Hardware Reference Manual D 6 UPS Status Monitoring This page is intentionally left blank...

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