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Chapter 4

Configuring the HP Rack Storage/12

29

Cluster Configuration

When the HP Rack Storage/12 is connected to two host systems, each host can
access up to 12 hard disk drives on each SCSI channel (see Figure 4-3).

Figure 4-3. Cluster Configuration Example

1. Connect one host system adapter to the RS/12 SCSI card in slot 1 (right

slot) of the HP Rack Storage/12.

2. Connect the second host system adapter channel to the RS/12 SCSI card

in slot 2 (left slot) of the HP Rack Storage/12.

3. Set Management Board Configuration Switch 1 Right for cluster

configuration:

Complete the configuration by installing power cables shown in "Power Cabling"
in the following section.

Summary of Contents for Rack Storage/12

Page 1: ...HP Rack Storage 12 Installation Guide HP Part Number D5989 90000 Printed in October 1998 ...

Page 2: ...mation that is protected by copyright All rights are reserved No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company Novell NetWare is a registered trademark of Novell Inc Microsoft Windows NT and NTAS are registered trademarks of Microsoft Corporation Windows and Windows 95 are registered trademarks of ...

Page 3: ...trols Ports and Indicators 11 Front View 11 Chassis Status LEDs 11 Hard Drive Status Indicators 12 Rear View 12 Power Switch 13 RS 12 SCSI Card 13 Management Board 14 Power Supplies 15 Operating and Managing the HP Rack Storage 12 16 Power On 16 Power Off 17 Managing Disk Arrays 17 3 Installing the HP Rack Storage 12 in a Rack 19 Tools Required 20 Installing Rack Nuts 20 Installing the Support Rai...

Page 4: ...rd 38 Removing the Connector Filler Panel 39 Installing the RS 12 SCSI Card 39 Replacing the Hot Swap Power Supply 39 Removing the Power Supply 40 Separating the Fan Module from the Power Supply 41 Attaching the Fan Module to the Power Supply 42 Installing the Power Supply 42 Replacing the Hot Swap Management Board 43 Preparing the Replacement Management Board 43 Removing the Management Board 44 I...

Page 5: ...pendix B Regulatory Information 53 Restricted Access Location 53 Notice for USA 53 FCC Radio Frequency Emissions Statement 53 Notice for Canada DOC Requirements 53 Appendix C Specifications 55 Environment 55 Power Requirements 56 Index 57 ...

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Page 7: ...t equipment in the rack make sure that you allow enough air flow for safe operation of the equipment Mechanical Loading Uneven mechanical loading within the rack can cause hazardous conditions Plan the placement of equipment in the rack to make sure that this problem does not occur Circuit Overloading Make sure that the total configuration of equipment in the rack does not overload the supply circ...

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Page 9: ...one of three operating environments simplex duplex or cluster The simplex configuration accesses up to 12 addressed hard drives The cluster configuration accesses up to 12 addressed hard drives from two host systems The duplex configuration accesses two banks of up to six hard drives each The duplex configuration is useful for either a small number of drives per channel or mirrored configurations ...

Page 10: ...e spacers are used between half height and low profile hard drives Filler panels in unused drive slots are mandatory to maintain proper drive cooling Configurations Internal chassis braces divide the drive cage into four sections Each section can support the following hard drive configurations see Figure 1 1 Three low profile hard drives Two half height hard drives One low profile drive one half h...

Page 11: ...hard drive products refer to the Tested Products List Help topic on the HP NetServer Navigator CD ROM or the Internet Web page http www hp com netserver NOTE Do not use hard drives that are not specifically certified by Hewlett Packard for use in the HP Rack Storage 12 The hard drives are multimode disk drives which allow the integration of the differential drivers and receivers into SCSI drive co...

Page 12: ...l when you install a new hard drive CAUTION Do not remove the filler panels except to install a new hard drive Open slots in the drive cage can affect airflow and cause thermal damage and excessive EMI Drive Spacers Drive spaces are required when half height and low profile hard drives are installed in the drive cage The 0 5 inch drive spacer fills the space between adjacent drives or between a dr...

Page 13: ...ower Switch Figure 1 3 Rear View of the HP Rack Storage 12 Power Switch The power switch controls AC power to the HP Rack Storage 12 The switch is located behind a hinged cover to prevent accidental power off NOTE 5 VDC standby power is supplied to the HP Rack Storage 12 even when the power switch is set OFF To remove standby power disconnect both power supplies from their AC sources ...

Page 14: ...ply fails the remaining power supply provides DC power to HP Rack Storage 12 components CAUTION Do not operate the HP Rack Storage 12 with a open power supply slot The chassis can overheat and damage components NOTE Replace a failed power supply as soon as possible The HP Rack Storage 12 should not be operated for extended time periods with only one operating power supply The power supply is prote...

Page 15: ...S 12 SCSI cards are installed Simplex configuration is enabled if one RS 12 SCSI card is installed Duplex configuration is enabled if two RS 12 SCSI cards are installed The cluster configuration is enabled by Switch 1 on the Management Board Descriptions of Simplex Duplex and cluster configurations follow See Management Board for a description of the configuration switches later in this chapter Co...

Page 16: ...cluster configuration This switch has effect only when two RS 12 SCSI cards are installed Set Left for non cluster operation Set Right for cluster operation Switch 2 is reserved Switch 3 is reserved Switch 4 is reserved Configuration Switch Settings The configuration switches take effect when the HP Rack Storage 12 is powered on Changing the switch settings after power on does not change the HP Ra...

Page 17: ...Chassis Status LEDs The three Status LEDs indicate the current operating status of the HP Rack Storage 12 The following conditions are displayed by the Status LEDs Green Normal operation Flashing Yellow Warning condition exists in the chassis Attention is required Check the operating status of components on the front and rear panels Flashing Red Fault condition exists in the chassis Immediate atte...

Page 18: ...nnected to the cage Green solid Hard drive present Drive Activity Indicator The drive activity indicator displays the following conditions Off No disk activity Flickering Green Accessing disk Flashing Yellow Disk failure predicted Red Disk fault or drive is offline Rear View The rear of the HP Rack Storage 12 is shown in Figure 2 2 Controls ports and indicators for each component are described sep...

Page 19: ...atus LED The Status LED indicates the current operating status of the RS 12 SCSI Card The following conditions are displayed by the Status LED Green Normal operation Flashing Yellow Firmware revision mismatch between the two installed RS 12 SCSI cards Flashing Red Hardware fault on the RS 12 SCSI card Off No power supplied to the RS 12 SCSI card 68 Pin Connector The 68 pin high density connector c...

Page 20: ...nt Board Controls and Indicators Temperature LED The temperature LED displays the current environmental temperature status of the HP Rack System 12 Green Normal operation Flashing Yellow High temperature warning within the chassis Check fan operation cooling or airflow problems Flashing Red Critical high temperature within the chassis Check fan operation cooling or airflow problems Off No power ...

Page 21: ...Right The default switch setting is Left for all switches The description of each switch follows Set Left Default Switch Set Right Non cluster Operation 1 Cluster Operation Reserved 2 Reserved Reserved 3 Reserved Reserved 4 Reserved Power Supplies The power supply port and indicators are shown in Figure 2 5 AC Power Connector Power LED Fan Status LED Figure 2 5 Power Supply Ports and Indicators ...

Page 22: ...e fan status LED displays the current operating condition of the fan module Green Normal operation Off No power or fan module failure Operating and Managing the HP Rack Storage 12 Power On The power switch is located on the top center of the rear panel NOTE 5 VDC standby power is supplied to the HP Rack Storage 12 even when the power switch is set OFF To remove standby power disconnect both power ...

Page 23: ...he power switch off Managing Disk Arrays HP NetServer Installation and Configuration Refer to the HP NetServer User Guide for information on installing accessory I O cards and configuring your system RAID Management Refer to the HP NetRaid Series User Guide for information on HP NetRAID adapters network operating system requirements and use of the HP NetRAID configuration and management applicatio...

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Page 25: ...tallation effort You should plan the placement of your HP Rack Storage 12 and other rack components before proceeding with installation For more details see the HP NetServer Rack Installation Road Map HP Rack Assistant can be used to plan the rack configuration HP Rack Assistant can be downloaded from the following Internet web site http www hp com netserver servsup The HP Rack Storage 12 fits int...

Page 26: ...ed in the sheet metal of the columns Use the rack template to locate the top and bottom of the HP Rack Storage 12 and install rack nuts for the support rails on all four columns NOTE Use the printout from the HP Rack Assistant and the instructions from the HP NetServer Rack Installation Roadmap to locate the HP Rack Storage 12 within the rack 1 Hold the bottom of the rack template at the EIA unit ...

Page 27: ...t section of the rail see Figure 3 2 1 Secure the front section of the support rail to the rack front column Insert two screws through the mounting holes and into the rack nuts mounted earlier 2 Slide the rear section of the support rail over the extension of the front section Insert two screws through the mounting holes and into the rack nuts mounted on the rear column earlier Rack Front Support ...

Page 28: ...NG Two persons are recommended to lift the HP Rack Storage 12 chassis The chassis weighs 35 pounds 15 9 Kg with the power supplies removed Installing the chassis without assistance could result in injury to the installer 2 Remove the power supply from the chassis to reduce the lifting weight NOTE The chassis top is wider than the bottom The chassis top rests on the support rails mounted in the rac...

Page 29: ... HP Rack Storage 12 in a Rack 23 Bezel Thumbscrews Figure 3 3 Sliding the Chassis into the Rack 5 Attach the front bezel Insert the bezel pins in the mounting holes in the chassis front Push the bezel until it snaps into place ...

Page 30: ...tall the RS 12 SCSI card in slot 1 right slot in the rear chassis Secure the adapter with two thumbscrews 3 Install the second RS 12 SCSI card or a blank filler panel in slot 2 left slot in the rear chassis Secure with two thumbscrews 4 Install the Management Board in the rear chassis slot Secure with two thumbscrews 5 Install the hard drives filler panels and spacers in the drive cage according t...

Page 31: ...in a Rack 25 Completing the Installation Return to the HP NetServer Rack Installation Roadmap to complete the installation of rack components When instructed to cable components follow instructions in Chapter 4 Configuring the HP Rack Storage 12 ...

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Page 33: ...on Duplex Configuration Cluster Configuration Power Cabling Simplex Configuration When one RS 12 SCSI card is installed in the HP Rack Storage 12 the host system can access up to 12 hard disk drives on a single SCSI channel see Figure 4 1 Figure 4 1 Simplex Cable Configuration Example 1 Connect the host system adapter to the RS 12 SCSI card in slot 1 right slot of the HP Rack Storage 12 ...

Page 34: ... can access up to six hard disk drives on each SCSI channel see Figure 4 2 Figure 4 2 Duplex Cable Configuration Example 1 Connect the host system adapter channel to the RS 12 SCSI card in slot 1 right slot of the HP Rack Storage 12 2 Connect the second host system adapter channel to the RS 12 SCSI card in slot 2 left slot of the HP Rack Storage 12 3 Set Management Board Configuration Switch 1 Lef...

Page 35: ...uster Configuration Example 1 Connect one host system adapter to the RS 12 SCSI card in slot 1 right slot of the HP Rack Storage 12 2 Connect the second host system adapter channel to the RS 12 SCSI card in slot 2 left slot of the HP Rack Storage 12 3 Set Management Board Configuration Switch 1 Right for cluster configuration Complete the configuration by installing power cables shown in Power Cab...

Page 36: ...ws the power cabling for the HP Rack Storage 12 Your power installation can be different because of the rack components installed and power load requirements Use the cable retention clips on the power supply to prevent inadvertent disconnection Figure 4 4 Power Cabling Example ...

Page 37: ...anels and drive spaces installed in unused drive slots You should plan your hard drive removal and installation steps before removing any hard drives drive spaces or filler panels from the drive cage Refer to Mass Storage in Chapter 1 for supported hard drive type configurations and installation restrictions The following general tasks are required for removing and installing hard drives Prepare t...

Page 38: ...lectrical components Place the drive on the anti static bag whenever you set it down Hard disk drives are very susceptible to mechanical shock and can be damaged by a drop as short as one quarter of an inch Take care when unpacking and handling the drive If the drop would crack an egg it will damage the drive 1 Remove the hard drive from its anti static container and set it on an anti static mat A...

Page 39: ...the slots of the hard drive 3 Press the drive spacer and hard drive together until the drive spacer is fully seated Removing a Drive Spacer Remove a drive spacer from the adjacent hard drive if it is not required for the installation 1 Slide the drive spacer back slightly to the rear of the hard drive 2 Tilt up the front of the drive spacer to disengage the front two tabs 3 Pull the drive spacer f...

Page 40: ...ponents 34 Removing a Filler Panel Remove a filler panel when installing a new drive in the drive cage see Figure 5 2 1 Press the locking latch and insert your fingers 2 Using your fingers pull the filler panel straight out Figure 5 2 Removing a Filler Panel ...

Page 41: ...nds for the drive to stop spinning and the drive heads to park 5 Support the bottom of the drive as you remove it Slowly pull the drive straight out Do not allow the drive to fall 6 Turn the drive slowly to its horizontal storage orientation 7 Place the drive in an anti static bag Do not stack drives Installing a Hard Disk Drive Install the hard drive in the drive cage CAUTION Do not use excessive...

Page 42: ...ght pipes when handling or installing the hard drive The light pipes are exposed on the rear of the hard drive 2 Slide the drive slowly into the drive slot until it stops see Figure 5 4 3 Press the ejector handle until you feel the locking latch click into place The hard drive power indicator displays Green when the hard drive is correctly installed 4 Install filler panels in unused drive slots ...

Page 43: ...Chapter 5 Removing and Installing HP Rack Storage 12 Components 37 Figure 5 4 Installing the Hard Drive ...

Page 44: ...crews Figure 5 5 Replacing the RS 12 SCSI Card Removing the RS 12 SCSI Card NOTE Follow step 1 only for simplex and duplex configurations The hard drives can still be accessed in cluster configurations 1 Close all applications and log off all users on the host system using the hard drives connected to the RS 12 SCSI card 2 Disconnect the cable connecting the RS 12 SCSI card to the host system ...

Page 45: ...ly seated in the chassis 2 Secure the RS 12 SCSI card to the chassis with two thumbscrews 3 Connect the SCSI cable from the host system to the RS 12 SCSI card NOTE The current SCSI channel configuration is restored from memory The configuration can be changed by recycling AC power Replacing the Hot Swap Power Supply The power supply and fan module are removed as a unit from the chassis see Figure ...

Page 46: ...3 Pull the power supply out of the chassis until the power supply disconnects from its connector Leave the power supply in the chassis until the fan stops spinning WARNING Wait 60 seconds for the fan to stop spinning Removing the power supply before the fan stops can result in injury to you or damage to equipment Do not touch the exposed power connector inside the chassis Electrical current is pre...

Page 47: ...Fan Module from the Power Supply 1 Press and hold the plastic tabs securing the fan to the power supply see Figure 5 7 1 Press and hold tabs 2 Push down on fan Figure 5 7 Separating the Fan Module from the Power Supply 2 Push down on the fan to separate the fan from the power supply ...

Page 48: ...supply 2 Lift the fan module until the top tabs snap into the top slots of the power supply Installing the Power Supply 1 Insert the power supply until it is fully seated in the chassis 2 Tighten the two thumbscrews to secure the power supply assembly to the chassis 3 Plug the power cord into the power supply and into the AC source 4 Secure the power cord in the cable retention clamp 5 Verify the ...

Page 49: ...d is installed the current operating configuration is unchanged The configuration can be changed by resetting the configuration switches and recycling AC power Preparing the Replacement Management Board 1 Remove the Management Board from its anti static container see Figure 5 8 Thumbscrews Configuration Switches Figure 5 8 Replacing the Management Board 2 Set the configuration switches on the repl...

Page 50: ...chassis from the rack 1 Close all applications and log off all users using the disk arrays on the Rack Storage 12 2 Lift the hinged cover and set the power switch off 3 Disconnect all data cables and power cords 4 Label each hard drive and filler panel so that they can be later installed in the same location in the drive cage NOTE Remove components to reduce the chassis weight before removing it f...

Page 51: ...eveler feet to the floor WARNING Two persons are recommended to remove the HP Rack Storage 12 chassis The empty chassis weighs 35 pounds 15 9 Kg with power supplies removed Removing the chassis without assistance could result in injury Support the chassis as you remove it 10 Slide the chassis out of the rack and place it on work surface ...

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Page 53: ...s and power cords are firmly plugged into their proper receptacles Check that all parts of the system are turned on and properly adjusted If the system is plugged into a switched multiple outlet box make sure the switch on the outlet box is turned on Plug a different electrical device such as a printer into the power outlet and turn it on Always exchange units suspected of malfunctioning with anot...

Page 54: ...s If timeouts occur frequently the recommended solution is to add a second RS 12 SCSI card and connect to the host through a duplex configuration If the Drive Power Indication is not lit check the following Check to make sure that the HP Rack Storage 12 is powered on and the there is power to the unit Check that the hard drive is seated in the drive cage Remove and reinstall the hard drive If the ...

Page 55: ... same SAF TE processor revision If the Status LED is red the board is defective Replace the board with a new board Management Board Not Responding Check to make sure that the HP Rack Storage 12 is powered on and that there is power to the unit If the Temperature LED is not lit remove the Management Board and replace it with a new board If the Temperature LED is flashing yellow the chassis is too h...

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Page 57: ...rvice Support Booklet included with your product for a description of the On Site Warranty and for all other information regarding Hewlett Packard s warranty of this product Service and Support Please refer to the HP NetServer Warranty and Service Support Booklet included with your HP Rack Storage 12 for all information regarding service and support for this product ...

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Page 59: ...g the equipment in a commercial environment This equipment generates and uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at h...

Page 60: ... kV Signal Lines 1 kV Power Lines FCC Title 47 CFR Part 15 Supplementary Information 1 The product was tested in a typical configuration with Hewlett Packard peripherals 2 Models were configured with a network interface board and shielded twisted pair cable 3 The product complies with Part 15 of the FCC rules Operation is subject to the following two conditions This device may not cause harmful in...

Page 61: ... drives that you are using Environment Temperature Operating 5 to 35 C 40 to 95 F Non operating 40 to 65 C 40 to 140 F Humidity noncondensing Operating 20 to 80 relative humidity Non operating Maximum 95 relative humidity Altitude Operating 3 046 m 10 000 ft Non operating 12 200 m 40 000 ft Weight and Dimensions Height 13 2 cm 5 19 in Width 46 36 cm 18 25 in Depth 71 76 cm 28 25 in Weight chassis ...

Page 62: ...l AC input requirements for fully loaded configuration 73 of power supply capability Nominal Volts Amps Watts 100 5 48 537 120 4 51 530 200 2 61 512 230 2 25 507 Power supply type Wide input range power factor corrected DC output power 500 Watts DC continuous maximum Peak AC inrush current 30 Amps 230 VAC ...

Page 63: ...g 29 configuring 9 17 definiton 3 switch setting 10 14 configuration resetting 9 10 restoring 9 switch settings 43 switches 9 D data transfer rate 9 drive activity indicator 12 power indication 12 spacers 6 drive cage 4 capacity 4 sections 4 drive spacers definiton 4 installing 32 removing 33 duplex auto configuration 9 cabling 28 definiton 3 switch settings 14 E environmental specifications 55 F ...

Page 64: ...lems 49 mass storage 3 N Navigator CD ROM 5 NetServer installing and configuring 17 P power cabling 30 fan status LED 16 over temperature protection 8 powering off 17 powering on 16 redundancy 8 requirements 56 standby 7 status LED 16 supply instaling 42 supply replacing 39 switch 7 13 troubleshooting problems 47 R Rack Assistant 20 rack nuts 20 rack space requirements 19 RAID managing 17 Roadmap ...

Page 65: ...5 status chassis 11 chassis temperature 14 fan 16 hard drive 6 12 management board 9 power 16 RS 12 SCSI Card 13 support rails 21 T troubleshooting hard drive problems 48 management board problems 49 power problems 47 RS 12 SCSI card problems 49 W WARNING fan removal 40 lifting chassis 22 45 power supply connector 40 stabilizing rack 22 44 weight and dimensions 55 ...

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