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4  Maintaining Power Supply and Cooling Modules

The array can support two hot-swappable power supply and cooling modules. 

The array can operate only temporarily with one module, but both modules must be present for long-term cooling 
of the array.                      

About Power Supplies

The PS Series array receives power from two power supplies (PSUs).

Each PSU has a 700W power supply. Each power supply has two cooling fans.

The fans that keep the array cool are integrated into the power supply modules and cannot be replaced 
separately. If a fan fails, you must replace the entire power supply module.

Identifying Power Supply Failures

You can identify a power supply and cooling module failure by any or all of the following:

• 

LEDs

 on the power supply and cooling modules.  

See "Power Supply LEDs" on page 33

 for details.

• 

Messages

 on the console, in the event log, or in the Group Manager GUI Alarms panel.

• 

Group Manager GUI and CLI output.

 The GUI Member Enclosure window or the CLI 

member select 

show enclosure

 command shows a power supply and cooling module failure. 

Note:  

When viewing the rear of the array, power supply 0 is on the right, and power supply 1 is on the left.

Power Supply LEDs

The   power supplies and cooling modules have LEDs that indicate their status. 

Figure 23

 illustrates the power supply LEDs. 

Table 7

 describes these LEDs.

33

Содержание PS4110

Страница 1: ...PS4110 Storage Arrays Hardware Owner s Manual Version 1 0 ...

Страница 2: ...marks and registered trademarks mentioned herein are the property of their respective owners Information in this document is subject to change without notice Reproduction in any manner whatsoever without the written permission of Dell is strictly forbidden Published February 2013 Part Number 110 6067 EN R2 ...

Страница 3: ... Networking Options 31 4 Maintaining Power Supply and Cooling Modules 33 About Power Supplies 33 Identifying Power Supply Failures 33 Removing a Power Supply and Cooling Module 35 Installing a Power Supply and Cooling Module 36 5 Troubleshooting Your Array 39 Safety First For You and Your array 39 Obtaining Technical Support and Customer Service 39 Determining Service Tag Information 40 Obtaining ...

Страница 4: ......

Страница 5: ... power on and off operations Notes Cautions and Warnings A NOTE indicates important information that helps you make better use of your system A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed A WARNING indicates a potential for property damage personal injury or death Recommended Tools You will need the following items to perform the procedures in th...

Страница 6: ...ceptacle or attach it to the matching alligator clip and connect the clip to a grounded device Examples of an appro priate ground would be an ESD mat or the metal frame of a grounded piece of equipment Chassis Types The PS4110 array is available in two different chassis types A 2U chassis with 24 2 5 inch drives installed vertically A 2U chassis with 12 3 5 inch drives installed horizontally Array...

Страница 7: ...e of the array 4 Set the bezel aside Installing the Bezel The steps for installing the bezel are the same for all the array models 1 Hook the right end of the bezel onto the right side of the chassis 2 Swing the left end of the bezel towards the left side of the chassis 3 Press the bezel into place until the release latch closes 4 Using the key provided lock the bezel and store the key in a safe p...

Страница 8: ...ify the array see the Group Manager online help Steady amber Critical status Blinking amber Warning 2 Power LED The power LED is ON when at least one power supply is supplying power to the array Off No power or the array is in Standby mode Steady green Array has at least one power supply providing power and array is not in Standby mode 3 Drive Release Latch None Enables you to remove a drive from ...

Страница 9: ...data path between the array and the applications using the storage array management functions for your array 4 Control Module Release Lever None Enables you to remove the control module from the array Shutting Down and Restarting an Array A PS Series array includes redundant hot swappable drives power supplies and control modules in a dual control module array You can remove a redundant component ...

Страница 10: ...with read write access such as the grpadmin account 3 Enter the shutdown command as shown next login grpadmin Password Welcome to Group Manager Copyright 2001 2011 Dell Inc group1 shutdown If you are using a serial connection to shut down an array it is safe to turn off power when the press any key message appears Pressing any key will restart both control modules If you are using a network connec...

Страница 11: ... LEDs on the drive See Interpreting Drive LEDs on page 8 A message on the console in the event log or in the Group Manager Alarms panel Indications in the Group Manager Member Disks window or the CLI member select show disks command output Behind the bezel arrays have a label showing the drive numbering for that specific array model In arrays with 2 5 inch drives installed vertically in a row the ...

Страница 12: ...wn in Figure 7 Drive LED states are described in Table 4 Figure 6 LEDs on 3 5 inch Drives Figure 7 LEDs on 2 5 inch Drives Table 4 Drive LED States Description Indicator States Drive activity indicator ACT LED Blinking green Drive is busy Steady green No drive activity Drive status indicator PWR LED Green Drive OK Amber Drive failed Off No power to drive 8 ...

Страница 13: ... a drive Protect drives from electrostatic discharge Wear an electrostatic wrist strap when handling a drive unless it is protected from electrostatic discharge See Protecting Hardware on page 2 Handle drives carefully Hold a drive only by the plastic part of the carrier or the handle Do not drop or jolt a drive or force a drive into a slot Warm replacement drives to room temperature before instal...

Страница 14: ... make sure the drive power LED is green or flashing green See Identifying Failed Drives on page 7 There is a two minute delay between the time you insert a drive and the time the drive is automatically con figured into a RAID set This time interval allows multiple drives to be simultaneously configured in an array which is more efficient than installing a single drive configuring it and then repea...

Страница 15: ...ves are installed vertically with the drive release latch on the top and the drive label on the bottom 1 Wear electrostatic protection when handling a drive See Protecting Hardware on page 2 2 Open the drive release latch 3 Hold the drive by the carrier and slide the drive most of the way into a slot callout 1 in Figure 9 11 ...

Страница 16: ...until you hear a click callout 4 Figure 9 Installing a 2 5 inch Drive Verify that the new drive is operational by examining the LEDs on the front panel as described in Interpreting Drive LEDs on page 8 In addition examine the GUI Member Disks window and the CLI member select show disks command output Removing a 3 5 inch Drive 1 Remove the bezel See Removing the Bezel on page 3 12 ...

Страница 17: ... the drive out by the handle until it is free of the drive bay callout 3 Figure 10 Removing a 3 5 Inch Drive Installing a 3 5 inch Drive The 3 5 inch drives are installed horizontally with the drive release latch to the left and the drive label to the right 1 Wear electrostatic protection when handling a drive See Protecting Hardware on page 2 2 Open the drive release latch 13 ...

Страница 18: ...allout 3 5 Push in the handle until you hear a click callout 4 Figure 11 Installing a 3 5 inch Drive Verify that the new drive is operational by examining the LEDs on the front panel as described in Interpreting Drive LEDs on page 8 In addition examine the GUI Member Disks window and the CLI member select show disks command output Removing a Drive Blank Warning To maintain proper system cooling al...

Страница 19: ...ive bay See Figure 12 or Figure 13 Figure 12 Removing and Installing a 3 5 Inch Hard Drive Blank Figure 13 Removing and Installing a 2 5 Inch Hard Drive Blank Item Description 1 Drive blank 2 Release tab Installing a Drive Blank 1 Remove the bezel See Removing the Bezel on page 3 2 Insert the drive blank into the drive bay until the blank is fully seated 3 Attach the bezel 15 ...

Страница 20: ......

Страница 21: ...h labeled Ethernet 0 Each port has its own LEDs indicating status and activity One 10GBASE T port One SFP port Note Only one 10G Ethernet port can be used at a time If both ports are attached to an active switch the control module will prefer to communicate over the SFP interface One 10Mb 100Mbps port labeled MANAGEMENT for use only if you configure a management network The management port has two...

Страница 22: ...figuration A single control module is a single point of failure If the control module fails the entire array and all the volumes on it becomes unavailable Dell strongly recommends buying an array with two control modules or installing a second control module in a single controller array In an array with a single control module the module must be in slot CM0 Caution For proper array cooling and air...

Страница 23: ...her control module but is not currently in use its LEDs will not be lit Interpreting Control Module LEDs Control modules have the following LEDs The Ethernet ports and the Management port each have LEDs that indicate the port s status and activity Below the release latch is a column of three LEDs that indicate the status of the entire control module Figure 15 Control Module LEDs 19 ...

Страница 24: ...t transmitting or not receiving On Transmitting or receiving Table 6 Control Module Status LED Descriptions LED Name State Description PWR Off No power On steady green Power OK ACT Off No power secondary control module is not synchronized with active control module or error condition Steady green Active control module serving network I O Steady amber Secondary control module Cache is synchronized ...

Страница 25: ...s on both control modules are connected to the management network A PS Series array provides the following types of network failure protection Vertical failover In a dual control module array a network port on the active control module can fail over to the same network port on the other secondary control module if a network path fails For example if Eth ernet 0 on CM0 loses connectivity switch 0 f...

Страница 26: ... Controllers window or use the following CLI command member select show controllers If the firmware on a microSD card does not match the firmware running on an array do not install it Instead contact your array support provider Control Module Handling Requirements Follow these control module handling requirements Do not remove an active control module Protect control modules from electrostatic dis...

Страница 27: ...up However anyone can press the button and the group cannot determine who put the array into standby on off mode Therefore group administrators should consider their environment s security concerns before enabling this feature Using the Standby Button After the feature is enabled group wide you can use the Standby On Off button on either control module of any applicable member to shut down the arr...

Страница 28: ...placing a Control Module If a control module fails remove it and replace it with a functioning control module as described in this section You will also need to temporarily remove a control module when you want to replace its microSD card Refer to Replacing the MicroSD Card on page 29 for information about replacing the MicroSD card You can partially or completely remove a control module without s...

Страница 29: ...rol module As described in Inserting the MicroSD Card on page 30 4 Insert the replacement control module into the array As described in Installing a Control Module on page 27 Replacing the Active Control Module Use one of following procedures to replace the active control module in the array One Controller Array 1 Shut down the system with a full shutdown As described in Shutting Down and Restarti...

Страница 30: ... 25 Removing a Control Module Before removing a control module Review the information at the beginning of Replacing a Control Module on page 24 Attach an electrostatic wrist strap See Protecting Hardware on page 2 Disconnect any serial or network cables attached to the control module If there are open interface con nectors on the other control module re attach the network cables to the other contr...

Страница 31: ...re See Replacing the MicroSD Card on page 29 Caution Do not operate an array with an empty control module slot Return the failed control module in the packaging in which the replacement module was shipped Contact your PS Series support provider for information about returning hardware Installing a Control Module You can install a control module without shutting down the array Caution Do not mix co...

Страница 32: ...hown in following illustration Figure 19 Installing a Control Module 2U Array 4 Rotate the lever callout 2 in illustration inward which pushes the control module completely into the slot The latch on the lever will snap into place 5 Reconnect the network cables 6 If the array was shut down turn on power to the array 7 Make sure the control module is operational See Interpreting Control Module LEDs...

Страница 33: ...le and install the card in the replacement control module This will make sure that the new control module is running the same firmware as the other control module in the array Before you begin the procedure to replace a microSD card Review Replacing a Control Module on page 24 for information about removing and replacing a control mod ule Attach an electrostatic wrist strap as described in Protect...

Страница 34: ...microSD card on a flat surface where it will be protected from electrostatic charge Figure 20 Ejecting the MicroSD Card Inserting the MicroSD Card 1 Align the replacement microSD card so the arrow on the card points towards the housing Figure 21 When correctly positioned the gold contacts will be facing downward and inward towards the housing 2 Firmly press the card into the housing until it click...

Страница 35: ...modules to network switches you can also optionally connect the Management port to a separate network switch Configuring a management port enables you to separate management traffic creating and managing the group members volumes replication and so on from the iSCSI data traffic I O between applications and volumes and between replication partners Configuring the Management Port Configuring the 10...

Страница 36: ... a dedicated management network with a subnet that is separate from the subnets for iSCSI traffic 2 On both control modules connect the port labeled MANAGEMENT to the management network The location of the management port is shown in the following figure Figure 22 Management Port Location Software Steps See the PS Series Group Administration guide for the procedure to configure the management netw...

Страница 37: ...re power supply module Identifying Power Supply Failures You can identify a power supply and cooling module failure by any or all of the following LEDs on the power supply and cooling modules See Power Supply LEDs on page 33 for details Messages on the console in the event log or in the Group Manager GUI Alarms panel Group Manager GUI and CLI output The GUI Member Enclosure window or the CLI membe...

Страница 38: ...onnected to AC power There is a fault condition For a list of warning or critical level faults see the Group Administration manual 2 Fault Amber On Fault detected OFF OK Blinks briefly when power is first turned on to the power supply module For a list of warning or critical level faults see the Group Administration manual 3 AC power Green ON Power supply module is connected to a source of AC powe...

Страница 39: ...ng module must be replaced within five 5 minutes of removing it Otherwise if possible cleanly shut down the array before removing the module as described in Shutting Down and Restarting an Array on page 5 How to Remove a Power Supply Wear electrostatic protection when handling a power supply and cooling module See Protecting Hardware on page 2 To remove a power supply and cooling module use the fo...

Страница 40: ...d cooling module use the following steps and illustrations 1 Hold the power supply module so that the orange release latch is on the upper left 2 Slide the power supply and cooling module into the chassis until it is fully seated and the release latch clicks into place as illustrated below Note Before the power cable is connected the fans start spinning powered by the other power supply module 36 ...

Страница 41: ... Connect the power cable to the power supply and cooling module and plug the cable into a power outlet Note The AC LED lights up when the AC power cable is connected even if the switches on the power supply are off 5 Secure the power cable using the hook and loop fastener strap as shown in the following illustration 6 Turn on the switch on the power supply and cooling module 37 ...

Страница 42: ...Hardware Owner s Manual 4 Maintaining Power Supply and Cooling Modules Figure 26 Securing the Power Cables 38 ...

Страница 43: ...automated support telephone system direct your call more efficiently Contacting Dell Dell provides several online and telephone based support and service options Availability varies by country and product and some services might not be available in your area For customers in the United States call 800 945 3355 Note If you do not have access to an Internet connection contact information is printed ...

Страница 44: ...artup check if The array fault LEDs are lit See Front Panel Features and Indicators on page 3 There is a constant scraping or grinding sound when you access the hard drive See Obtaining Technical Sup port and Customer Service on page 39 Troubleshooting Loss of Communication For information about troubleshooting loss of communication see Network Requirements and Recommendations in the Installation ...

Страница 45: ... supply s fault indicator is lit see Obtaining Technical Support and Customer Service on page 39 Power supply and cooling modules are hot swappable The array can operate on a single power supply however both modules must be installed to ensure proper cooling A single power supply and cooling module can be removed from a powered on array for a maximum of five minutes Beyond that time the array may ...

Страница 46: ... latest firmware see the PS Series Release Notes and the document Updating PS Series Storage Array Firmware available on the customer support site 5 If the link status LEDs are not green a Reseat the cables on the control modules and the switches b Check the link status LED If the link status LED is not green proceed to the next step c Replace the cables If the problem is not resolved see Obtainin...

Страница 47: ... status 28 cooling module removing PSU 35 D disks failure behavior 9 failure indications 7 handling requirements 9 LEDs 8 locating 7 protecting 9 verifying operational status 12 14 E electrostatic discharge avoiding 2 electrostatic wrist strap using 2 F failover control module 21 failure indications control modules 20 disks 7 fans removing PSU 35 firmware identifying version 22 requirements 21 fro...

Страница 48: ...emoving 3 5 inch drive 10 12 drive blank 14 requirements control modules 22 cooling 35 disks 9 firmware 21 power 35 S safety 39 shutting down an array 5 status control modules 20 T troubleshooting 39 connections 40 cooling problems 41 external connections 41 hard drives 42 loss of communication 40 power supply cooling fan module 41 startup failure 40 44 ...

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