DELL PowerVault MD3800i
Contents
1. If the power supply modules fault indicator is lit see Getting Help CAUTION Power supply modules are hot swappable The array can operate on a single power supply module however both modules must be installed to ensure proper cooling A single power supply module can be removed from a powered on array for a maximum period of five minutes Beyond that time the array may automatically shut down to prevent damage 2 Reseat the power supply module by removing and reinstalling it NOTE After installing a power supply module allow several seconds for the array to recognize the power supply module and to determine if it is working properly If the problem is not resolved see Getting Help Troubleshooting Array Cooling Problems A CAUTION Many repairs may only be done by a certified service technician You should only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product Ensure that none of the following conditions exist e Array cover or drive blank is removed e External airflow is obstructed The cooling fan module is removed or has failed If the problem is not resolved see Getting Help 36 Troubleshooting Expansion Enclosure Management Modules CAUTION Many re2. RAID Controller Module Connectors And Features 14 13 12 11 10 9 8 Figure 7 MD3800i and MD3820i Series iSCSI RAID Controller Module 13 Item Component Function 1 10 Gbps iSCSI IN port 2 Provides host to controller SCSI 10 Gbps Ethernet connection 2 Seven segment display Displays status or error codes for the storage array sequence 3 Controller power LED Lights green when controller power is on Turns off when controller is not powered 4 Controller fault LED Lights amber when controller fault is detected Turns off when controller is operating normally 5 System identification LED Blinks blue when system identification switch push button on enclosure front panel is pressed 6 Cache active or cache offload Lights green when on board controller memory LED contains data If AC power fails this LED changes to indicate Cache Offload status If the password reset function has successfully changed the password this LED flashes on and off briefly 7 Battery fault Lights amber when battery backup unit or battery has failed Turns off when battery backup unit is operating normally 8 Management port Provides a 100 1000 Mbps Ethernet connection for out of band management of the enclosure 9 Ethernet port reserved Reserved port 10 SAS IN port 2 Provides host to controller SAS connection 11 USB port This port is a reserved port 12 Mini USB port Provides serial connection for debugging 15 Password reset switc
3. 2 Align the screw holes on the physical drive with the back set of holes on the physical drive carrier When aligned correctly the back of the physical drive is flush with the back of the physical drive carrier 3 Attach the screws to secure the physical drive to the physical drive carrier RAID Controller Module An MD3800i and MD3820i series storage array supports single as well as dual RAID controller configurations If only one RAID controller module is installed in your array it must be installed in slot O You must install the RAID controller module blank in slot 1 22 A CAUTION RAID controller modules can be removed and installed without turning off the array It is recommended that you do not remove the RAID controller module while data is being transferred Replacing or installing a RAID controller module that is connected to a host server causes it to lose communication with the array and may require a reboot of the host server Removing a RAID Controller Module Blank CAUTION To maintain proper system cooling you must install a RAID controller module blank in the empty slot 1 Turn off the array and host server 2 Disconnect all the power cables connected to the array 3 To remove the RAID controller module blank press down on the release latch and pull the blank away from the array 4 Install RAID controller modules in slot O and 1 5 Connect all the power cables to the array 6 Turn on the array and the host
4. see Getting Help Troubleshooting Array and Expansion Enclosure Connections 1 Verify that the RAID controller module port link status LED and the RAID controller module status LED are solid green for each port that is connected to a cable Ensure that all the cables are attached correctly according to the array mode you selected Turn off the host server storage array and expansion enclosures Reseat the RAID controller module and reconnect cables on the storage array and the host server Turn on the expansion arrays and then the storage array and wait until the system is fully booted Turn on the host server Check the LEDs of all cabled ports Reboot the host server 9 54 O Jh AN N NOTE You must turn off the host server before resetting the cables on the storage array or expansion enclosure If the problem is not resolved see Getting Help Troubleshooting a Wet System A CAUTION Many repairs may only be done by a certified service technician You should only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product 1 Turn off the system and attached peripherals and disconnect the system from the electrical outlet Open the system 3 Disassemble components from the sy
5. Closing the RAID Controller Module A CAUTION Many repairs may only be done by a certified service technician You must only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product 1 Place the cover onto the RAID controller module and offset it slightly towards the back so that the hooks on the cover fit over the corresponding slots on the RAID controller module Slide the cover toward the front till it snaps into place Replace the screws on the RAID controller module Connect all the cables to the array GER Turn on the array and the host server RAID Controller Module Backup Battery Unit Removing the RAID Controller Module Backup Battery Unit A CAUTION Many repairs may only be done by a certified service technician You must only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product Turn off the array and host server Disconnect all the cables connected to the array Remove the RAID controller module Open the RAID controlle
6. server Figure 14 Removing and Installing a RAID Controller Module Blank 1 release latch 2 RAID controller module blank Installing a RAID Controller Module Blank 1 Align the blank with the RAID controller module bay 2 Insert the blank into the chassis until it clicks into place 25 Removing a RAID Controller Module A CAUTION Many repairs may only be done by a certified service technician You must only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product 1 Disconnect the cables connected to the RAID controller module 2 Push down on the release tab and pull the release lever away from the chassis 3 Hold the release lever and pull the module away from the chassis NOTE To avoid damage to the sensitive EMI contacts on the RAID controller module do not stack RAID controller modules Figure 15 Removing and Installing a RAID Controller Module 1 RAID controller module 2 release tab 5 release lever 24 Installing a RAID Controller Module A CAUTION Many repairs may only be done by a certified service technician You must only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone
7. service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product Insert the RAID controller module into the RAID controller module bay until it seats into place Push the release lever toward the chassis until it clicks into place Connect all the cables to the RAID controller module PWN P If applicable update the firmware for the RAID controller module For information about the latest firmware see dell com support Opening the RAID Controller Module A CAUTION Many repairs may only be done by a certified service technician You must only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product Turn off the array and host server Disconnect all the power cables connected to the array Remove the RAID controller module Remove the screws from the sides of the RAID controller module Ns SW NM While pressing the indent slide the cover in the direction of the arrow and lift it away from the RAID controller module 1 2 3 i 882229 Figure 16 Opening and Closing the RAID Controller Module 1 screws 2 2 RAID controller module 5 indent 25
8. wN Check the link status LED If the link status LED is not green replace the cables If the problem is not resolved see Getting Help Troubleshooting RAID Controller Modules A CAUTION Many repairs may only be done by a certified service technician You should only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product 57 A CAUTION In the case of non redundant configurations it is recommended that you turn off the host server before turning off the array to prevent loss of data If the Array Status LED is Solid or Blinking Amber ouod In the AMW select the Summary tab and click on Storage Array needs attention Follow the listed procedures in the Recovery Guru s and wait for up to 5 minutes to check if the LED has turned blue If following the Recovery Guru procedures does not solve the problem complete the following procedure to further troubleshoot the array Turn off the host server as appropriate Remove the RAID controller module and verify that the pins on backplane and RAID controller module are not bent Reinstall the RAID controller module and wait for 50 seconds Check the RAID controller module status LED Replace the RAID controller module Turn
9. Dell PowerVault MD3800i and MD3820i Storage Arrays Owner s Manual Regulatory Model E03J and E04J Series Regulatory Type E03J001 and E04J00 Notes Cautions and Warnings K NOTE A NOTE indicates important information that helps you make better use of your computer A CAUTION A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem A WARNING A WARNING indicates a potential for property damage personal injury or death Copyright O 2014 Dell Inc All rights reserved This product is protected by U S and international copyright and intellectual property laws Dell and the Dell logo are trademarks of Dell Inc in the United States and or other jurisdictions All other marks and names mentioned herein may be trademarks of their respective companies 2014 02 Rev AOO Contents TlAbout Your SY SM atac 7 Intro dUC OM EE yi Front Panel Features and IndlCators sanae i ed ts 7 Back Panel Features and Indicators eee eee dud Ere ede dde de e aa 10 Physi al Drive lndieator Patterris x ort E IER BN UPC ERE FER ERE e paren 10 Power Supply and Cooling Fan Features 11 Power Indicator Codes and Features 11 Related DOCU ION s Cede tec ds Gee lee DES 12 2 Controller Modules usd iaa 13 RAID Conttoller Modules de ee 13 RAID Controller Module Connectors And Features 13 RAID Controller Module Additional Features anna nnnn noo 14 Battery Backup Unitat as Stor
10. N connector K NOTE For technical support use only Two SAS OUT ports for expansion to additional PowerVault MD1200 or MD1220 expansion enclosures K NOTE SAS connectors are SFF 8088 compliant E NOTE It is recommended that you use one port Two 10 Gbps iSCSI IN connectors to connect hosts 43 Back Panel Connectors Per RAID Controller Module Serial connector debug port One mini USB port K NOTE For technical support use only Management Ethernet connector One 100 1000 Mbps Ethernet connection for out of band management of the enclosure MGMT Power AC power supply per power supply Wattage 600 W Heat dissipation maximum 100 W K NOTE Heat dissipation is calculated using the power supply wattage rating The heat dissipation values are for the entire system which includes chassis and two controllers Voltage 100 220 V AC 8 6 A 4 3 A K NOTE This system is also designed to be connected to IT power systems with a phase to phase voltage not exceeding 230 V Battery 6 6 V DC 1100 mAh 7 26 W Lithium ion battery Environmental NOTE For additional information about environmental measurements for specific system configurations see dell com environmental_datasheets Temperature Operating Continuous operation 10 C to 35 C 50 F to 95 F at 20 to 80 relative humidity RH with 26 C maximum dew point De rate maximum allowable dry bulb temperature at 1 C 300 m 1 F per 550 ft a
11. age Array Thermal Shutdown System Password Reset inmersa ll os Cache Functions and Features ui tdi daa CacheMITEOFIBIg 4 rao bis Whrite Backi ach Gia vn dete ente e t D eek Ee Eu eeu om d idu eun tec Wiuite Througki Cache eec ea eH e Hes o e a o o A Te oda 3 Installing Array Components sss tnter Recommended Tools i ii ID eee eue bad Bod hae Ue os abes ec BE E i ee Eu Pte Front Bezel Optionals A ta tao ny lathe ade header din e ead Removing the Front Bezel o Rei ae Ra ad EE e dest Installing the Front Bezel s ot date teet ied Al stil sa d id Physical Drives SAFETY Models AMT E03J and E04J Removing a 2 5 Inch Physical Drive Blank nstalling a 2 5 Inch Physical Drive Blank Removing a 3 5 Inch Physical Drive Blank enne nstalling a 3 5 Inch Physical Drive Blank Removirig a Hot Swap Physical Drive tutt eave tne eh cae tiec tutt nstalling a Hot Swap Physical Drive Removing a Physical Drive From a Physical Drive Carrier nstalling a Physical Drive Into a Physical Drive Carter RAID Controller Module eerta rena e e oe E RE E e eee Pre ev d Removing a RAID Controller Module Blank Installing a RAID Controller Module Blank 23 Removing a RAID Controller Module sessssssssssssssesseseee eene nnne nnne tnnt eines 24 Installinigz RAID Controller Module citet p alan wit ee d e ters 25 Opening the RAID Controller Module omic indeed esed cere dedere ea dee 25 Closing the RAID Controller M
12. bove 900 m 2952 75 ft E NOTE For information on supported expanded operating temperature range and configurations see the Owner s Manual at dell com powervaultmanuals Storage 40 C to 65 C 40 F to 149 F with a maximum temperature gradation of 20 C per hour Relative humidity 44 Environmental Operating Storage Maximum vibration Operating Storage Maximum shock Operating Storage Altitude Operating Storage Airborne contaminant level Class 10 to 80 noncondensing with maximum humidity gradation of 10 per hour 5 to 95 at a maximum wet bulb temperature of 33 C 91 F 0 26 Gims at 5 Hz to 350 Hz in operational orientation 1 88 Grms at 10 Hz to 500 Hz for 15 minutes all six sides tested One shock pulse in the positive z axis of the system at 31 G for 2 6 ms in the operational orientation Six consecutively executed shock pulses in the positive and negative x y and z axes one pulse on each side of the system at 71 G for up to 2 ms Maximum 3000 m 9842 5 ft NOTE For altitudes above 2950 ft the maximum operating temperature is derated 1 8 F 1000 ft Maximum 12192 m 40 000 ft Gl as defined by ISA S71 04 1985 45 46 Getting Help Locating Your System Service Tag Your system is identified by a unique Express Service Code and Service Tag number The Express Service Code and Service Tag are found on the front of the system by pulling out the inf
13. chassis 7 Replace the control panel 8 Replace the power supply cooling fan modules 9 Replace the hard drives 10 Connect all the cables to the array 11 Turn on the array and the host server 55 34 Troubleshooting Your System Safety First For You and Your System A CAUTION Many repairs may only be done by a certified service technician You should only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product NOTE To replace a RAID controller always hot plug the replacement controller when the array has been powered on All new hard drives should be hot plugged to the array Do not use drives or RAID controllers from other arrays Troubleshooting Storage Array Startup Failure If your system halts during startup check if The array emits a series of beeps The array fault LEDs are lit There is a constant scraping or grinding sound when you access the physical disk For assistance contact Dell Support Troubleshooting Loss of Communication For information about troubleshooting loss of communication see Troubleshooting Array and Expansion Enclosure Connections Troubleshooting External Connections Verify that the cables are connected to t
14. d to the host initiator Write back cache is enabled by default unless cache mirroring is disabled Write Through Cache In write through cache data is written to the physical disk before completion status is returned to the host operating system Write through cache is considered more robust than write back cache since a 15 power failure is less likely to cause loss of data The RAID controller automatically switches to write through if cache mirroring is disabled or if the battery is missing or has a fault condition 16 Installing Array Components Recommended Tools You may need the following items to perform the procedures in this section e Key to the system keylock 2 Phillips screwdriver e Wrist grounding strap Front Bezel Optional Removing the Front Bezel Using the system key unlock the front bezel if locked Lift the release latch next to the keylock Rotate the left end of the bezel away from the front panel Unhook the right end of the bezel and pull the bezel away from the system BN Figure 8 Removing and Installing the Front Bezel 1 bezel 2 keylock 3 release latch 4 hinge tab Installing the Front Bezel 1 Hookthe right end of the bezel onto the chassis 2 Fitthe free end of the bezel onto the system 17 3 Secure the bezel with the keylock Physical Drives SAFETY Models AMT E03J and E04J Models AMT E03J and E04J are intended for installation only in restricted access
15. de the control panel out of the chassis after Pushing the release tab toward the front of the array in PowerVault MD3800i Pulling the release pin toward the front of the array in PowerVault MD3820i Figure 20 Removing and Installing the Control Panel PowerVault MD3800i 1 control panel 2 release tab Figure 21 Removing and Installing the Control Panel PowerVault MD3820i 1 release pin 2 control panel Installing the Control Panel 1 Align the control panel with the slot on the array 2 Slide the control panel into the array until The release tab clicks into place in PowerVault MD3800i The release pin clicks into place in PowerVaultMD3820i 30 3 Replace the hard drives in their respective slots 4 Connect all the power cables to the array 5 Turn on the array and the host server Backplane Removing the Backplane A CAUTION Many repairs may only be done by a certified service technician You must only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product Turn off the array and disconnect it from the electrical outlet Disconnect all the cables connected to the array Remove the hard drives Remove the RAID controller modules Remove th
16. drive status indicator remains off until all physical drives are initialized after the system is turned on Drives are not ready for insertion or removal during this time 10 Drive Status Indicator Pattern Condition RAID Only Blinks green amber and turns Predicted drive failure off Blinks amber four times per Drive failed second Blinks green slowly Drive rebuilding Steady green Drive online Blinks green three seconds Rebuild aborted amber three seconds and turns off six seconds Power Supply and Cooling Fan Features The MD3800i and MD3820i Series storage array includes two integrated hot swappable power supply cooling fan modules Both modules must be installed to ensure proper cooling The system requires at least one of the cooling fans to function to avoid overheating A power supply cooling fan module can be replaced without powering down the system For information on removing and installing the modules see Power Supply Cooling Fan Module Power Indicator Codes and Features Figure 6 Power Indicator Codes and Features Item LED Type Icon Description 1 DC power The LED lights green when the DC output voltage is within the limit 11 Item LED Type Icon Power supply cooling fan fault A AC power p wel Power connector Power switches 2 Description If this LED is off it indicates that the DC output voltage are not within the limit The LED lights amber when the DC outpu
17. e power supply cooling fan modules Remove the control panel Remove the screws that secure the RAID controller module power supply cage to the chassis Qi DIS ANTE Hold the cage removal ring at the bottom center of the array and pull the RAID controller module power supply cage toward the back of the chassis 9 Lift the RAID controller module power supply cage away from the chassis 10 Loosen the captive screw that secures the backplane to the chassis 31 11 Remove the screws that secure the backplane and pull the backplane out of the array 1 2 Figure 22 Removing and Installing the RAID Controller Module Power Supply Cage 1 screws 6 2 RAID controller module power supply cage Figure 23 Removing and Installing the Backplane PowerVault MD3800i 1 screws 5 2 backplane captive screw 32 Figure 24 Removing and Installing the Backplane PowerVault MD3820i 1 screws 4 2 backplane captive screw Installing the Backplane 1 Align the screw holes on the backplane with the screw holes on the array 2 Tighten the captive screw to secure the backplane to the chassis 3 Replace the screws that secure the backplane to the chassis 4 Align the slots on the RAID controller module power supply cage with the tabs on the chassis 5 Push the RAID controller module power supply cage toward the front of the array 6 Replace the screws that secure the RAID controller module power supply cage to the
18. elease button Installing a 3 5 Inch Physical Drive Blank 1 If installed remove the front bezel 2 Insert the physical drive blank into the physical drive slot until the release button clicks into place 3 If applicable install the front bezel Removing a Hot Swap Physical Drive CAUTION To prevent data loss ensure that your operating system supports hot swap drive installation See the documentation supplied with your operating system 1 From the management software prepare the physical drive for removal Wait until the indicators on the physical drive carrier signal that the physical drive can be removed safely For more information see the documentation for the storage controller If the physical drive is online the green activity fault indicator flashes as the drive is turned off When the physical drive indicators are off the physical drive is ready for removal 2 Press the release button to open the physical drive carrier release handle 3 Slide the physical drive carrier out until it is free of the physical drive slot CAUTION To maintain proper system cooling all empty physical drive slots must have physical drive blanks installed 4 Insert a physical drive blank in the empty physical drive slot 19 Figure 11 Removing and Installing a Hot Swap Physical Drive 1 5 release button 2 physical drive physical drive carrier handle Installing a Hot Swap Physical Drive CAUTION Many repairs may only be d
19. elve 3 5 inch SAS hot swappable hard drives MD3820i Up to twenty four 2 5 inch SAS hot swappable hard drives The function of this switch is not applicable to your storage array However if MD1200 Series expansion enclosures are daisy chained to the storage array the enclosure mode switches of the MD1200 Series expansion enclosures must be set to the Unified Mode position E NOTE This switch must be set before turning on the MD1200 Series expansion enclosure Changing the switch setting after the expansion enclosure is turned on has no effect on the enclosure configuration until the expansion enclosure goes through a complete power cycle Back Panel Features and Indicators Figure 4 Back Panel Features and Indicators Dell PowerVault MD3800i and MD3820i Series 1 600 W power supply cooling fan 2 RAID Controller Module O 3 RAID Controller Module 1 4 600 W power supply cooling fan Physical Drive Indicator Patterns 2 1 O Figure 5 Physical Drive Indicators 1 physical drive activity indicator green 2 physical drive status indicator green and amber NOTE If the physical drive is in Advanced Host Controller Interface AHCI mode the status indicator on the right side does not function and remains off Drive Status Indicator Pattern Condition RAID Only Blinks green two times per Identifying drive or preparing for removal second Off Drive ready for insertion or removal NOTE The
20. emove it Install a physical drive in the physical drive carrier Press the release button on the front of the physical drive carrier and open the physical drive carrier handle Insert the physical drive carrier into the physical drive slot until the carrier connects with the backplane Close the physical drive carrier handle to lock the physical drive in place Removing a Physical Drive From a Physical Drive Carrier 1 Remove the screws from the slide rails on the physical drive carrier 2 Lift the physical drive out of the physical drive carrier Figure 12 Removing and Installing a Physical Drive Into a 2 5 inch Physical Drive Carrier 1 physical drive carrier 2 physical drive screws 4 21 Figure 13 Removing and Installing a 3 5 Inch Physical Drive Into a Physical Drive Carrier 1 physical drive carrier 2 physical drive screws 4 Installing a Physical Drive Into a Physical Drive Carrier A CAUTION Many repairs may only be done by a certified service technician You should only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product 1 Insert the physical drive into the physical drive carrier with the connector end of the physical drive toward the back
21. er supply handle Installing a Power Supply Cooling Fan Module A CAUTION Many repairs may only be done by a certified service technician You must only 28 perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product Slide the power supply cooling fan module into the chassis until it is fully seated and the release tab clicks into place Connect the power cable to the power supply cooling fan module and plug the cable into a power outlet 3 4 Secure the power cable using the strap Figure 19 Securing the Power Cable 1 restraining strap A CAUTION When connecting the power cable secure the cable with the strap K NOTE If the array is powered on all the power supply LEDs remain off until the AC power cable is connected to the power supply cooling fan module and the power switch is turned on Turn on the power supply cooling fan module Control Panel Removing the Control Panel 1 Turn off the array and host server Disconnect all the power cables connected to the array Remove the hard drives from slots O to 2 in PowerVaultMD3800i slots 0 to 5 in PowerVaultMD3820i E NOTE Mark each hard drive with its slot position as you remove it 29 4 Sli
22. et qe etr ed a D epa ets 58 Troubleshooting Array and Expansion Enclosure Connechonms 39 Troubleshootind a Wet Systern s crie rar comete i tO c a a Wn etr E de 39 Troubleshooting a Damaged System 2 tecti ead al Naan ew Bc tt det nd 40 Controller EallUre Condito Se idad egeat 40 Critical CONOS e a Nes Man tette 41 Noneritical A ek UR EDU GR RUBER eet ibm 41 lnvalid Storage Array ix dale c fto Neb oram dee tp t e eed te ee t ns 41 ECCiEITOIS i dee els obe er ed t eto ton a dd 41 P UERFOLS e tS D RL ELE re ELE is 41 5 Technical Specifications nocan ranie akidi enpi eea eri a aniio 43 6 Getting ET EE 47 locating Your SystemiSEnvie Tagus st teg bebe e bea 47 Contacting Dell siesta he dette id ed rae bendi EES EA 47 Doc mentation Eeedback ote ee eb te beth eee choc uei dtes Bo Net MO AE 47 About Your System Introduction The MD3800i and MD3820i Series storage array is designed for high availability offering redundant access to data storage Its features support both single and dual RAID controller configurations The Dell PowerVault MD3800i and 3820i Series storage array provides 10 G 1000 BaseT connectivity to the host server It enables access to 32 physical hosts The MD3800i and MD3820i Series storage array includes a number of components These components are RAID controller module s PSU fan modules Disk drives also called physical disks hard drives in this document A front bezel optional A system enclos
23. h Activating this switch resets the password 14 SAS OUT port 2 Provides SAS connection for cabling to an expansion enclosure It is recommended that you use port O RAID Controller Module Additional Features Battery Backup Unit Each RAID controller contains a two cell Lithium ion nanopolymer battery backup unit BBU It provides power to the RAID controller module in the event of a power outage For information on removing and installing the BBU see RAID Controller Module Backup Battery Unit NOTE For virtual disks the RAID controller firmware changes the data cache setting based on the state of the battery If the battery is missing or does not have sufficient charge the controller flushes the cache and sets the write cache attribute to Write Through for all virtual disks When the battery is replaced Write Back is re enabled 14 Storage Array Thermal Shutdown The system automatically shuts down when system temperature exceeds the safe threshold The battery backup unit protects against data loss by providing power to offload cache to non volatile memory in the event of power loss It is not necessary to shut down any MD1200 Series expansion enclosures attached to the storage array when thermal shutdown occurs Temperature threshold values determine the temperature at which shutdown occurs These thresholds cannot be changed Table 1 Shutdown Threshold Type Threshold Temperature Exceeding Event Description Nominal fa
24. he correct ports before troubleshooting any external devices For the location of the back panel connectors on your storage array see Back Panel Features and Indicators Ensure that all the cables are securely attached to the external connectors on your array For information on cabling see the Deployment Guide for your storage array at dell com powervaultmanuals 35 Troubleshooting Power Supply Cooling Fan Modules CAUTION Many repairs may only be done by a certified service technician You should only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product CAUTION It is recommended that you turn off the host server before turning off the array to prevent loss of data 1 Locate the faulty power supply and determine the status of the LEDs Ifthe AC power LED is not lit check the power cord and power source into which the power supply module is plugged Connect another device to the power source to verify if it is working Connect the cable to a different power source Replace the power cable If the problem is not resolved see Getting Help Ifthe DC power LED is not lit verify that the power switch is turned on If the power switch is turned on see step 2
25. ilure threshold A critical event is set Maximum failure threshold Shutdown of the system power supplies occurs within 3 minutes Shutdown threshold Shutdown of the system power supplies occurs within 5 seconds System Password Reset The storage array password can be reset if it is forgotten To reset the password push and hold down the password reset switch for at least 5 seconds The password is deleted The RAID controller module allows you to change the password K NOTE The reset switch can be accessed by using a small object such as the tip of a pen Cache Functions and Features Cache Mirroring Cache mirroring function copies accepted host write data from the primary controller to the partner controller This action ensures that host write data is safely mirrored to the partner controller before successful completion status is returned to the host If a controller fails the surviving controller safely retains all mirrored data Cache mirroring is enabled by default Write Back Cache In write back cache write operations result in a completion signal being sent to the host operating system as soon as the cache receives the data to be written The target physical disk receives the data at a more appropriate time to increase controller performance In dual active controller configurations with write back caching enabled the write data is always mirrored to the cache of the second controller before completion status is issue
26. locations as defined in cl 1 2 7 5 of IEC 60950 1 2005 Depending on your configuration your array either supports up to twenty four 2 5 inch SAS physical drives or up to twelve 5 5 inch SAS physical drives in internal drive bays Physical drives are connected to a backplane through physical drive carriers and can be configured as hot swappable Removing a 2 5 Inch Physical Drive Blank CAUTION To maintain proper system cooling all empty physical drive slots must have physical drive blanks installed 1 If installed remove the front bezel 2 Press the release button and slide the physical drive blank out until it is free of the physical drive slot 2 Figure 9 Removing and Installing a 2 5 Inch Physical Drive Blank MD3820i only 1 physical drive blank 2 release button Installing a 2 5 Inch Physical Drive Blank 1 If installed remove the front bezel 2 Insert the physical drive blank into the physical drive slot until the release button clicks into place 3 If applicable install the front bezel Removing a 3 5 Inch Physical Drive Blank CAUTION To maintain proper system cooling all empty hard drive slots must have drive blanks installed 1 If installed remove the front bezel 2 Press the release button and slide the physical drive blank out until it is free from the physical drive slot 18 Figure 10 Removing and Installing a 3 5 Inch Hard Drive Blank MD3800i only 1 physical drive blank 2 r
27. noncritical condition is an event or status that does not cause immediate failure but must be corrected to ensure continued reliability of the storage array Examples of noncritical events include the following e One power supply module has failed e One cooling fan module has failed e One RAID controller module in a redundant configuration has failed A battery has failed or has been removed Aphysical disk in a redundant virtual disk has failed Invalid Storage Array The RAID controller module is supported only in a Dell supported storage array After installation in the storage array the controller performs a set of validation checks The array status LED is lit with a steady amber color while the RAID controller module completes these initial tests and the controllers are booted successfully If the RAID controller module detects a non Dell supported storage array the controller does not start up The RAID controller module does not generate any events to alert you in the event of an invalid array but the array status LED is lit with a flashing amber color to indicate a fault state ECC Errors RAID controller firmware can detect ECC errors and can recover from a single bit ECC error whether the RAID controller module is in a redundant or non redundant configuration A storage array with redundant controllers can recover from multi bit ECC errors as well because the peer RAID controller module can take over if necessary The RAID con
28. odule t eset e dei e e erbe 26 RAID Controller Module Backup Battery Unit sse 26 Removing the RAID Controller Module Backup Battery Unit 26 Installing the RAID Controller Module Backup Battery Unit 27 Power Supply Cooling Fan Module Removing a Power Supply Cooling Fan Module Installing a Power Supply Cooling Fan Module Control Panel 5 rre E A pa aba Deka PUO PR e PNE PUER RP deed Removing the Control Panel Installing the Control Panel Back planes e A Gla ddd estar gece ee ee Removing the Backplane EE Installing the Backplarigs EE 4 Troubleshooting Your System Safety First For You and Your Svstem eene eene nennen nnn ntes Troubleshooting Storage Array Startup Failure nt Troubleshooting Loss of Communicator ne Troubleshooting External Connectons ener Troubleshooting Power Supply Cooling Fan Modules eee Troubleshooting Array Cooling Problem Troubleshooting Expansion Enclosure Management Modules f EMM Status LED is Blinking Amber 5 Times per Sequence ssssssm 357 f the EMM Status LED is Solid or Blinking Amber 2 or 4 Times per Sequence 37 f the Link Status EEDS are not Greene aortic titre a rb ete am e ost geg 357 Troubleshooting RAID Controller Modules ccoo nono no nora rn n cnn rca 37 f the Array Status LED is Solid or Blinking Amber 38 fthe Link Status EEDs are mot Green ti isis 58 Troubleshooting Physical Disks ue rre ttp e
29. on the host server If the problem is not resolved see Getting Help If the Link Status LEDs are not Green cBUWUNP Turn off the host server Reseat the cables on the expansion array and the server Turn on the expansion arrays and the storage array and wait until the system is fully booted Turn on the host server Check the link status LED If the link status LED is not green replace the cables If the problem is not resolved see Getting Help Troubleshooting Physical Disks A CAUTION Many repairs may only be done by a certified service technician You should only 38 perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product Check the storage array profile to ensure that the most current version of the firmware is installed For more information see the Support Matrix at dell com support manuals Remove the physical disk from the system NOTE You must ensure that you check the physical disk indicators before removing the faulty physical disk from the system Check the physical disks and the midplane to ensure that the connectors are not damaged Reinstall the physical disk 5 Ifthe problem is not resolved replace the failed physical disk If the problem persists
30. one by a certified service technician You should only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product CAUTION Use only physical drives that have been tested and approved for use with the physical drive backplane A CAUTION Combining SAS and SATA physical drives in the same RAID volume is not supported 1 2 3 4 5 20 CAUTION When installing a physical drive ensure that the adjacent drives are fully installed Inserting a physical drive carrier and attempting to lock its handle next to a partially installed carrier can damage the partially installed carrier s shield spring and make it unusable CAUTION To prevent data loss ensure that your operating system supports hot swap drive installation See the documentation supplied with your operating system CAUTION When a replacement hot swappable hard drive is installed and the system is powered on the hard drive automatically begins to rebuild Make absolutely sure that the replacement hard drive is blank or contains data that you wish to have over written Any data on the replacement hard drive is immediately lost after the hard drive is installed If a physical drive blank is installed in the physical drive slot r
31. ormation tag This information is used by Dell to route support calls to the appropriate personnel Contacting Dell NOTE If you do not have an active Internet connection you can find contact information on your purchase invoice packing slip bill or Dell product catalog Dell provides several online and telephone based support and service options Availability varies by country and product and some services may not be available in your area To contact Dell for sales technical support or customer service issues Visit dell com support Select your support category Verify your country or region in the Choose a Country Region drop down menu at the top of page BUND Select the appropriate service or support link based on your need Documentation Feedback If you have feedback for this document write to documentation Teedbackedell com Alternatively you can click on the Feedback link in any of the Dell documentation pages fill out the form and click Submit to send your feedback 47
32. pairs may only be done by a certified service technician You should only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product CAUTION It is recommended that you turn off the host server before turning off the expansion enclosure array to prevent loss of data If EMM Status LED is Blinking Amber 5 Times per Sequence Update the firmware to the latest supported firmware on both the EMMs For more information on updating your EMM firmware see Management Firmware Downloads in the Storage Arrays Administrator s Guide at dell com powervaultmanuals If the EMM Status LED is Solid or Blinking Amber 2 or 4 Times per Sequence Turn off the host server Remove the EMM and verify that the pins on the backplane and EMM are not bent Reseat the EMM module and wait for 30 seconds Turn on the host server Check the EMM status LED If the LED does not turn Green replace the EMM Sr 21 de 2 E If the problem is not resolved see Getting Help If the Link Status LEDs are not Green Turn off the host server Reseat the cables on the expansion array and the server Turn on the expansion arrays and the storage array and wait until the system is fully booted Turn on the host server uk
33. r module Loosen the screw that secures the backup battery unit to the RAID controller module Sr Uv AONE Slide the backup battery unit and lift it out of the RAID controller module Figure 17 Removing and Installing the RAID Controller Module Backup Battery Unit 1 backup battery unit 2 screw 26 Installing the RAID Controller Module Backup Battery Unit A CAUTION Many repairs may only be done by a certified service technician You must only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product Align the backup battery unit with the slots on the RAID controller module Slide the backup battery unit toward the connector on the RAID controller module Tighten the screw that secures the backup battery unit to the RAID controller module Close the RAID controller module Replace the RAID controller module Connect all the cables to the array 2 2 H 28 NP Turn on the array and the host server Power Supply Cooling Fan Module NOTE Your storage array includes two integrated hot swappable power supply cooling fan modules The array supports two hot swappable power supply cooling fan modules While the array can operate temporarily with one module both the modules mu
34. s Deployment Guide Provides information about deploying the storage system in the SAN architecture Dell PowerVault MD34xx and 38xx Series Support Matrix Provides information about the software and hardware compatibility matrices for the storage array Controller Modules RAID Controller Modules The RAID controller modules provide high performance advanced virtual disk configuration and fault tolerant disk subsystem management Each RAID controller module contains 4GB or 8GB of mirrored cache for high availability and a battery powered cache offload mechanism E NOTE The 8GB mirrored cache is an optional feature RAID controller modules provide the following data path and enclosure management functions e Monitoring and controlling enclosure environment elements temperature fans power supplies and enclosure LEDs e Controlling access to the physical disks e Communicating enclosure attributes and states to the host server and management station Each RAID controller module has multiple SCSI IN ports for host access The ports provide redundant host connections and support a high availability storage environment Various configurations can be utilized in both single controller simplex and dual controller duplex modes to connect the storage enclosure to hosts depending on specific redundancy needs For information on cabling see the MD3800i and MD3820i Series Storage Arrays Deployment Guide at dell com powervaultmanuals
35. st be present for proper system cooling CAUTION A single power supply cooling fan module can be removed from a powered on array for a maximum period of 5 minutes Beyond that time the array may automatically shut down to prevent damage Removing a Power Supply Cooling Fan Module pay CAUTION Many repairs may only be done by a certified service technician You must only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product K NOTE If you remove a fully functioning power supply cooling fan module the fan speed in the remaining module increases significantly to provide adequate cooling The fan speed decreases gradually when a new power supply cooling fan module is installed 1 Turn off the power supply cooling fan module 2 Disconnect the power cable from the power source 3 Remove the straps that secure the power cable and disconnect the power cable from the power supply cooling fan module WARNING The power supply cooling fan modules are heavy Use both hands while removing the module 27 4 Press the release tab and pull the power supply out of the chassis Figure 18 Removing and Installing a Power Supply Cooling Fan Module 1 release tab 2 power supply pow
36. stem Hard drives Hard drive backplane USB memory key Cooling shroud Expansion card risers if present Expansion cards Power supply s Cooling fan assembly if present Cooling fans Processor s and heat sink s Memory modules 4 Let the system dry thoroughly for at least 24 hours vi Reinstall the components you removed in step 3 6 Close the system 39 8 9 Turn on the system and attached peripherals If the system does not start properly see Getting Help If the system starts properly shut down the system and reinstall all of the expansion cards that you removed Run the appropriate diagnostic test For more information see Using System Diagnostics If the tests fail see Getting Help Troubleshooting a Damaged System A CAUTION Many repairs may only be done by a certified service technician You should only 4 5 6 perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product Turn off the system and attached peripherals and disconnect the system from the electrical outlet Open the system Ensure that the following components are properly installed Cooling shroud Expansion card risers if presen
37. t Expansion cards Power supply s Cooling fan assembly if present Cooling fans Processor s and heat sink s Memory modules Hard drive carriers Hard drive backplane Ensure that all cables are properly connected Close the system Run the appropriate diagnostic test For more information see Using System Diagnostics If the tests fail see Getting Help Controller Failure Conditions Certain events can cause a RAID controller module to fail and or shut down Unrecoverable ECC memory or PCI errors or critical physical conditions can cause lockdown If your RAID storage array is configured for redundant access and cache mirroring the surviving controller can normally recover without data loss or shutdown 40 Critical Conditions The storage array generates a critical event if the RAID controller module detects a critical condition that could cause immediate failure of the array and or loss of data The storage array is in a critical condition if one of the following occurs More than one fan has failed e Any midplane temperature sensors in the critical range e Midplane power supply module failure wo or more temperature sensors are unreadable Failure to detect or unable to communicate with peer port NOTE If both RAID controller modules fail simultaneously the enclosure cannot issue critical or noncritical event alarms for any enclosure component Noncritical Conditions A
38. t voltage is not within the limit or a fault with the fan is detected If this LED is off it indicates that no fault condition is present The LED lights green when the AC input voltage is within the limit If this LED is off it indicates either there is no power or the AC input voltage is not within the limit Connect the external power supply to this connector The power switch controls the power supply output to the enclosure Related Documentation K NOTE For all PowerVault documentation go to dell com powervaultmanuals K NOTE For all Dell OpenManage documents go to dell com openmanagemanuals E NOTE For all storage controller documents go to dell com storagecontrollermanuals You product documentation includes 12 Dell PowerVault MD3400 3420 38 00i 3820i 3800f 3820f Storage Arrays Getting Started Guide Provides an overview of system features setting up your system and technical specifications This document is shipped with your system Rack Installation Instructions Describes how to install your system into a rack This document is shipped with your rack solution Dell PowerVault MD Series Storage Arrays Administrator s Guide Provides information about configuring and managing the system using the MDSM GUI Dell PowerVault Modular Disk Storage Arrays CLI Guide Provides information about configuring and managing the system using the MDSM CLI Dell PowerVault MD3800i and MD3820i Storage Array
39. troller module fails over if it experiences up to 10 single bit errors or up to three multi bit errors PCI Errors The storage array firmware can detect and only recover from PCI errors when the RAID controller modules are configured for redundancy If a virtual disk uses cache mirroring it fails over to its peer RAID controller module which initiates a flush of the dirty cache 41 42 Technical Specifications Physical Disks Physical disks RAID Controller Modules RAID controller modules Expansion Modules Dell PowerVault MD1200 and MD1220 expansion enclosures SAS connectors Serial connector debug port Back Panel Connectors Per RAID Controller Module SAS connectors iSCSI connectors Up to twelve 3 5 inch or twenty four 2 5 inch SAS nearline SAS physical disks or SAS SSDs Two hot swappable modules with temperature sensors AGB or 8GB of cache per controller Provides host to controller iSCSI 10 Gbps Ethernet connection Each expansion enclosure holds Up to twelve 3 5 inch or twenty four 2 5 inch SAS nearline SAS physical disks or SAS SSDs Redundant path connectivity provides redundant data paths to each hard drive NOTE Support for 192 physical disks is a premium feature and requires activation Two SAS IN ports to connect hosts One SAS OUT port for expansion to additional PowerVault MD1200 or MD1220 expansion enclosure K NOTE SAS connectors are SFF 8088 compliant One 6 pin mini DI
40. ure into which the other components are plugged Front Panel Features and Indicators 1 eoo 6 3 gt A 4 3 5 6 E Figure 1 Front Panel Features and Indicators Dell PowerVault MD3800i Figure 2 Front Panel Features and Indicators Dell PowerVault MD3820i Figure 3 Front Bezel Features and Indicators Item Indicator Button or Connector Description 1 Enclosure status LED The enclosure status LED lights when the enclosure power is on Lights blue during normal operation Blinks blue when a host server is identifying the enclosure or when the system identification button is pressed Item Indicator Button or Connector Power LED Split mode LED System identification button Hard drives Enclosure mode switch Description Lights amber as enclosure boots or is reset Blinks amber when the enclosure is either in a fault state or the hosts are not using the preferred path to a virtual disk The power LED lights green when at least one power supply is supplying power to the enclosure This LED must be unlit as the split mode function is not supported by the MD3800i Series Storage Arrays The system identification button on the front control panel can be used to locate a particular enclosure within a rack When the button is pushed the system status indicators on the control panel and the RAID controller module s blink blue until the button is pushed again MD3800i Up to tw
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