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Connecting hosts

Cabling for replication

This section shows example replication configurations for MSA 2050 SAN controller enclosures. The following
illustrations provide conceptual examples of cabling to support Remote Snap replication. Blue cables show I/O traffic and
green cables show replication traffic.

NOTE:

Simplified versions of controller enclosures are used in cabling illustrations to show host ports used for I/O or

replication, given that only the external connectors used in the host interface ports differ.

•

Virtual replication supports FC and iSCSI host interface protocols.

•

The 2U enclosure rear panel represents MSA 2050 SAN 4-port models.

•

Host ports used for replication must use the same protocol (either FC or iSCSI)

•

Blue cables show I/O traffic and green cables show replication traffic.

Once the MSA 2050 systems are physically cabled, see the SMU Reference Guide or online help for information about
configuring, provisioning, and using the optional Remote Snap feature.

Host ports and replication

MSA 2050 SAN controller modules can use qualified SFP options of the same type, or they can use a combination of
qualified SFP options supporting different interface protocols. If you use a combination of different protocols, then host
ports 1 and 2 are set to FC (either both 16 Gb/s or both 8 Gb/s), and host ports 3 and 4 must be set to iSCSI (either both
10GbE or both 1 Gb). FC and iSCSI ports can either be used to perform I/O or replication.

IMPORTANT:

MSA 2050 controller enclosures support dual-controller configuration only. A controller module must be

installed in each IOM slot to ensure sufficient airflow through the enclosure during operation.

Each of the following diagrams show the rear panel of two MSA 2050 SAN controller enclosures equipped with
dual-controller modules. The controller modules can use qualified SFP options of the same type, or they can use a
combination of qualified SFP options supporting different interface protocols.

IMPORTANT:

MSA 2050 SAN controllers support FC and iSCSI host interface protocols for host connection or for

performing replications.

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Содержание MSA 2050

Страница 1: ...is document describes initial hardware setup for HPE MSA 2050 controller enclosures and is intended for use by storage system administrators familiar with servers and computer networks network administration storage system installation and configuration storage area network management and relevant protocols ...

Страница 2: ...r copying Consistent with FAR 12 211 and 12 212 Commercial Computer Software Computer Software Documentation and Technical Data for Commercial Items are licensed to the U S Government under vendor s standard commercial license Links to third party websites take you outside the Hewlett Packard Enterprise website Hewlett Packard Enterprise has no control over and is not responsible for information o...

Страница 3: ...Installing the enclosures 16 Installation checklist 16 FDE considerations 16 Connecting controller and drive enclosures 17 Connecting the MSA 2050 controller to the LFF or SFF drive enclosure 18 Cable requirements for MSA 2050 enclosures 18 Testing enclosure connections 22 Powering on powering off 22 AC power supply 23 DC power supply 24 4 Connecting hosts 26 Host system requirements 26 Connecting...

Страница 4: ...l Fault Service Required LED amber 48 Are both disk drive module LEDs off Online Activity and Fault UID 48 Is the disk drive module Fault UID LED blinking amber 48 Is a connected host port Host Link Status LED off 49 Is a connected port Expansion Port Status LED off 49 Is a connected port Network Port Link Status LED off 50 Is the power supply Input Power Source LED off 50 Is the power supply Volt...

Страница 5: ...ear panel LEDs 66 Controller enclosure rear panel layout 66 MSA 2050 LFF and SFF drive enclosures rear panel layout 71 B Specifications and requirements 72 Safety requirements 72 Site requirements and guidelines 72 Site wiring and AC power requirements 72 Site wiring and DC power requirements 72 Weight and placement guidelines 73 Electrical guidelines 73 Ventilation requirements 73 Cabling require...

Страница 6: ...ng hosts switch attach two servers two switches 30 19 Connecting hosts switch attach four servers multiple switches SAN fabric 30 20 Connecting two storage systems for Remote Snap multiple servers one switch one location 33 21 Connecting two storage systems for Remote Snap multiple servers switches one location 33 22 Connecting two storage systems for Remote Snap multiple servers switches two loca...

Страница 7: ...tus Rear panel Network Port Link Status 50 14 Diagnostics LED status Rear panel power supply Input Power Source 50 15 Diagnostics LED status Rear panel power supply Voltage Fan Fault Service Required 50 16 Diagnostics LED status Rear panel Cache Status 51 17 Diagnostics for replication setup Using Remote Snap feature 55 18 Diagnostics for replication setup Creating a replication set 55 19 Diagnost...

Страница 8: ...ne interface CLI are briefly described The SMU is the primary web interface to manage virtual storage The CLI enables you to interact with the storage system using command syntax entered via the keyboard or scripting NOTE For more information about the SMU see the SMU Reference Guide or online help For more information about the CLI see the CLI Reference Guide MSA 2050 SAN MSA 2050 SAN models use ...

Страница 9: ...t to change Online documentation describes the latest product and product family characteristics including currently supported features options technical specifications configuration data related optional software and product warranty information Product QuickSpecs Check the QuickSpecs for a complete list of supported servers operating systems disk drives and options See http www hpe com support M...

Страница 10: ...ved revealing ear flanges and disk drive modules Two sleeves protruding from the backside of each ear cover component of the bezel assembly push fit onto the two ball studs shown on each ear flange to secure the bezel Remove the bezel to access the front panel components TIP See Enclosure bezel page 62 for bezel attachment and removal instructions and pictorial views MSA 2050 Array SFF or supporte...

Страница 11: ...he sleeves that push fit onto the ball studs to secure the bezel or ear covers are shown in Figure 26 page 62 Disk drives used in MSA 2050 enclosures MSA 2050 enclosures support LFF SFF Midline SAS LFF SFF Enterprise SAS and LFF SFF SSD disks They also support LFF SFF Midline SAS and LFF SFF Enterprise self encrypting disks that work with the Full Disk Encryption FDE features NOTE In addition to t...

Страница 12: ...n The diagrams with tables that immediately follow provide descriptions of the different controller modules and power supply modules that can be installed into the rear panel of an MSA 2050 controller enclosure Showing controller modules and power supply modules separately from the enclosure provides improved clarity in identifying the component items called out in the diagrams and described in th...

Страница 13: ...or online help 1 Host ports used for host connection or replication see Install an SFP transceiver page 77 2 CLI port USB Type B 3 Service port 2 used by service personnel only 4 Reserved for future use 5 Network port 6 Service port 1 used by service personnel only 7 Disabled button used by engineering only Sticker shown covering the opening 8 SAS expansion port 1 Host ports used for host connecti...

Страница 14: ...r aging and continuing to receive new I O data the controller writes the data to the drive array Read ahead caching The controller detects sequential array access reads ahead into the next sequence of data and stores the data in the read ahead cache Then if the next read access is for cached data the controller immediately loads the data into the system memory avoiding the latency of a disk access...

Страница 15: ...sed installed in a different enclosure data loss data corruption will occur IMPORTANT In dual controller configurations featuring one healthy partner controller there is no need to transport failed controller cache to a replacement controller because the cache is duplicated between the controllers subject to volume write optimization setting Supercapacitor pack To protect RAID controller cache in ...

Страница 16: ...structions Import the keys for the disks so that the disk content becomes available Table 1 Installation checklist Step Task Where to find procedure 1 Install the controller enclosure and optional drive enclosures in the rack and attach the bezel or ear caps See the racking instructions poster 2 Connect the controller enclosure and LFF SFF drive enclosures See Connecting controller and drive enclo...

Страница 17: ...ll of the disks must be FDE capable If you install a disk module that does not support FDE into a secure system the disk will have the Unusable status and will be unavailable for use If you are re installing your FDE capable disk drive modules as part of the process to replace the chassis FRU you must insert the original disks and re enter their FDE passphrase IMPORTANT The Fault UID disk LED disp...

Страница 18: ...itional 1 m or 2 m cables depending upon number of enclosures and cabling method used see QuickSpecs for supported cables Spanning 3 4 or 5 drive enclosures requires 1 m 3 28 cables Spanning 6 or 7 drive enclosures requires 2 m 6 56 cables See the QuickSpecs link provided above regarding information about cables supported for host connection Qualified Fibre Channel SFP and cable options Qualified ...

Страница 19: ...In Out 1B 1A 2A 2B Controller A Controller B In Out LFF 12 drive or SFF 24 drive enclosure 1 1 Controller A Controller B 1A 1B In Out 2A 2B 3A 3B 4A 4B 5A 5B In Out In Out In Out In Out In Out In Out Out In Fault tolerant cabling Controller A Controller B 1A 1B In Out 2A 2B 3A 3B 4A 4B 5A 5B In Out In Out In Out In Out In Out In Out Out In Straight through cabling 4A 5A 1 1 1 1 1 1 1 1 LFF 12 driv...

Страница 20: ...e last drive enclosure with connections moving in the opposite direction green Fault tolerant cabling allows any drive enclosure to fail or be removed while maintaining access to other enclosures The diagram at right above shows the same storage components connected using straight through cabling Using this method if a drive enclosures fails the enclosures that follow the failed enclosure in the c...

Страница 21: ... 1 Drive enclosure IOM face plate key Controller A Controller B In Out In Out In Out In Out In Out 1A 1B 2A 2B 3A 3B 4A 4B 8A 8B In Out In Out 5A 5B In Out In Out 6A 6B In Out In Out 7A 7B In Out In Out Note The maximum number of supported drive enclosures 7 may require purchase of additional longer cables 1 1 1 1 1 1 1 In Out In SFF 24 drive enclosure ...

Страница 22: ...d associated host in the following order Drive enclosures first This ensures that disks in each drive enclosure have enough time to completely spin up before being scanned by the controller modules within the controller enclosure While enclosures power up their LEDs blink After the LEDs stop blinking if no LEDs on the front and back of the enclosure are amber the power on sequence is complete and ...

Страница 23: ... drive enclosure 3 Plug the power cord into the power cord connector on the back of the controller enclosure see Figure 12 Plug the other end of the power cord into the rack power source Repeat the sequence for the controller enclosure s other switchless power supply To power off the system 1 Stop all I O from hosts to the system see Stopping I O page 46 2 Shut down both controllers using either m...

Страница 24: ...hten the screws at the top and bottom of the shell applying a torque between 1 7 N m 15 in lb and 2 3 N m 20 in lb to securely attach the cable to the DC power supply module 4 To complete the DC connection secure the other end of each cable wire component of the DC power cable to the target DC power source Check the three individual DC cable wire labels before connecting each cable wire lug to its...

Страница 25: ... also Figure 13 page 24 To power off the system 1 Stop all I O from hosts to the system see Stopping I O page 46 2 Shut down both controllers using either method described below Use the SMU to shut down both controllers as described in the online help and HPE MSA 2050 SMU Reference Guide Proceed to step 3 Use the CLI to shut down both controllers as described in the HPE MSA 2050 CLI Reference Guid...

Страница 26: ...HBA in a server Cable connections vary depending on configuration Common cable configurations are shown in this section A list of supported configurations is available on the Hewlett Packard Enterprise site at http www hpe com support msa2050 HPE MSA 2050 Quick Start Instructions HPE MSA 2050 Cable Configuration Guide These documents provide installation details and describe supported direct attac...

Страница 27: ...tch used for the FC traffic The first usage option requires valid licensing for the Remote Snap replication feature whereas the second option requires that the host computer supports FC and optionally multipath I O TIP Use the SMU Configuration Wizard to set FC port speed Within the SMU Reference Guide see Using the Configuration Wizard and scroll to FC port options Use the set host parameters CLI...

Страница 28: ...erver connections four per controller module Connect appropriate cables from the server HBAs to the controller host ports as described below and shown in the following illustrations NOTE Not all operating systems support direct connect For more information see the Single Point of Connectivity Knowledge SPOCK Storage compatibility matrix www hpe com storage spock To connect the MSA 2050 SAN control...

Страница 29: ...erchangeable SFPs supported by the system One server one HBA dual path Figure 15 Connecting hosts direct attach one server one HBA dual path Two servers one HBA per server dual path Figure 16 Connecting hosts direct attach two servers one HBA per server dual path Four servers one HBA per server dual path Figure 17 Connecting hosts direct attach four servers one HBA per server dual path Server MSA ...

Страница 30: ... cable to the network management port on each MSA 2050 controller 2 Connect the other end of each Ethernet cable to a network that your management host can access preferably on the same subnet NOTE Connections to this device must be made with shielded cables grounded at both ends with metallic RFI EMI connector hoods in order to maintain compliance with NEBS and FCC Rules and Regulations NOTE Acce...

Страница 31: ...or by using physically separate infrastructure See also paragraph beneath Figure 21 page 33 For remote replication ensure that all ports assigned for replication are able to communicate appropriately with the remote replication system see the CLI Reference Guide for more information by using the query peer connection CLI command Allow a sufficient number of ports to perform replication This permit...

Страница 32: ...nd using the optional Remote Snap feature Host ports and replication MSA 2050 SAN controller modules can use qualified SFP options of the same type or they can use a combination of qualified SFP options supporting different interface protocols If you use a combination of different protocols then host ports 1 and 2 are set to FC either both 16 Gb s or both 8 Gb s and host ports 3 and 4 must be set ...

Страница 33: ...ddle switch Use multiple switches to avoid a single point of failure inherent to using a single switch Figure 21 Connecting two storage systems for Remote Snap multiple servers switches one location With the replication configuration shown in the previous figures Virtual Local Area Network VLAN and zoning could be employed to provide separate networks for iSCSI and FC respectively Whether using a ...

Страница 34: ... rear panel of two MSA 2050 SAN controller enclosures with both I O and replication occurring on different networks This diagram represents two branch offices cabled to enable disaster recovery and backup In case of failure at either the local site or the remote site you can fail over the application to the available site 6Gb s 6Gb s S S A S S A 6Gb s 6Gb s S S A S S A Remote site A Ethernet WAN I...

Страница 35: ...Modes Replicate back over WAN Failover Modes VMware Hyper V failover to servers A1 A2 B2 A1 B1 A2 B2 A1 B1 A1 A2 B1 B2 A Application servers A2 B File servers B1 B Application servers B2 Remote site B Remote site A Corporate end users Corporate end users LAN LAN WAN Ethernet SAN FC SAN FC data FS A data App A replica App B replica FS B replica FS A replica App A data FS B data App B MSA 2050 SAN S...

Страница 36: ...e to install a firmware binary file follow the steps below Using the SMU in the System topic select Action Update Firmware The Update Firmware panel opens The Update Controller Modules tab shows versions of firmware components currently installed in each controller NOTE Partner Firmware Update using management interfaces The SMU provides an option for enabling or disabling Partner Firmware Update ...

Страница 37: ...ctly cabling to the CLI port is an out of band connection because it communicates outside the data paths used to transfer information from a computer or network to the controller enclosure Emulated serial port Once attached to the controller module as shown in Figure 24 page 39 the management computer should detect a new USB device Using the Emulated Serial Port interface the controller presents a...

Страница 38: ...tall the USB device driver from your HPE MSA support page at www hpe com support downloads Obtaining IP values One method of obtaining IP values for your system is to use a network management utility to discover HPE MSA Storage devices on the local LAN through SNMP Alternative methods for obtaining IP values for your system are described in the following subsections Setting network port IP address...

Страница 39: ...From your network administrator obtain an IP address subnet mask and gateway address for controller A and another for controller B Record these IP addresses so that you can specify them whenever you manage the controllers using the SMU or the CLI 2 Use the provided USB cable to connect controller A to a USB port on a host computer The USB mini 5 male connector plugs into the CLI port as shown in F...

Страница 40: ...t for controller A and then for controller B set network parameters ip address netmask netmask gateway gateway controller a b where address is the IP address of the controller netmask is the subnet mask gateway is the IP address of the subnet router a b specifies the controller whose network parameters you are setting For example set network parameters ip 192 168 0 10 netmask 255 255 255 0 gateway...

Страница 41: ...2 Retain the new IP addresses to access and manage the controllers using either the SMU or the CLI NOTE Using HyperTerminal with the CLI on a Microsoft Windows host On a host computer connected to a controller module s mini USB CLI port incorrect command syntax in a HyperTerminal session can cause the CLI to hang To avoid this problem use correct syntax use a different terminal emulator or connect...

Страница 42: ...unicate out of band between the host and controller module for setting network port IP addresses To restore a hung connection when the MC is restarted any supported terminal emulator 1 If the connection hangs disconnect and quit the terminal emulator program a Using Device Manager locate the COMn port assigned to the Disk Array Port b Right click on the hung Disk Array USB Port COMn and select Dis...

Страница 43: ...ted section provides instructions for signing in to the SMU introduces key concepts addresses browser setup and provides tips for using the main window and the help window TIP After signing in to the SMU you can use online help as an alternative to consulting the reference guide Configuring and provisioning the storage system Once you have familiarized yourself with the SMU use it to configure and...

Страница 44: ...ted below Gather fault information including using system LEDs see Gather fault information page 45 Determine where in the system the fault is occurring see Determine where the fault is occurring page 45 Review event logs see Review the event logs page 45 If required isolate the fault to a data path component or configuration see Isolate the fault page 46 Cabling systems to enable use of the licen...

Страница 45: ...l help you determine the correct action needed to remedy the fault Begin by reviewing the reported fault Is the fault related to an internal data path or an external data path Is the fault related to a hardware component such as a disk drive module controller module or power supply By isolating the fault to one of the components within the storage system you will be able to determine the necessary...

Страница 46: ...it is connected to Check the event log for errors Correcting enclosure IDs When installing a system with drive enclosures attached the enclosure IDs might not agree with the physical cabling order This is because the controller might have been previously attached to some of the same enclosures during factory testing and it attempts to preserve the previous enclosure IDs if possible To correct this...

Страница 47: ...l system setup See LED descriptions page 62 for descriptions of all LED statuses NOTE Once event notification is configured and enabled using the SMU you can view event logs to monitor the health of the system and its components using the GUI In addition to monitoring LEDs via line of sight observation of racked hardware components when performing diagnostic steps you can also monitor the health o...

Страница 48: ...action required Yes blinking One of the following errors occurred Hardware controlled power up error Cache flush error Cache self refresh error Restart this controller from the other controller using the SMU or the CLI If the above action does not resolve the fault remove the controller and reinsert it If the above action does not resolve the fault contact an authorized service provider for assist...

Страница 49: ...n Check cable connections and reseat if necessary Inspect cables for damage Replace cable if necessary Swap cables to determine if fault is caused by a defective cable Replace cable if necessary Verify that the switch if any is operating properly If possible test with another port Verify that the HBA is fully seated and that the PCI slot is powered on and operational In the SMU review event logs f...

Страница 50: ...erly No action required Yes The link is down Use standard networking troubleshooting procedures to isolate faults on the network Table 14 Diagnostics LED status Rear panel power supply Input Power Source Answer Possible reasons Actions No System functioning properly No action required Yes The power supply is not receiving adequate power Verify that the power cord is properly connected and check th...

Страница 51: ...te the troubleshooting process Host side connection troubleshooting featuring host ports with SFPs The procedure below applies to MSA 2050 SAN controller enclosures employing small form factor pluggable SFP transceiver connectors in 8 16 Gb FC 10GbE iSCSI or 1 Gb iSCSI host interface ports In the following procedure SFP and host cable is used to refer to any of the qualified SFP options supporting...

Страница 52: ...t cable and host side devices are functioning properly Return the SFP and cable to the original port If the link status link activity LED remains off you have isolated the fault to the controller module port Replace the controller module No Proceed to the next step 7 Swap the SFP with the known good one Is the host link status link activity LED on Yes You have isolated the fault to the SFP Replace...

Страница 53: ...nk status This step isolates the problem to the expansion cable or to the controller module expansion port Is the expansion port status LED on Yes You now know that the expansion cable is good Return the cable to the original port If the expansion port status LED remains off you have isolated the fault to the controller module expansion port Replace the controller module No Proceed to the next ste...

Страница 54: ...ndary system follow these steps Find the port address on the secondary system Using the CLI run the show ports command on the secondary system Verify that ports on the secondary system can be reached from the primary system using either method below Run the query peer connection CLI command on the primary system using a port address obtained from the output of the show ports command above In the S...

Страница 55: ... the Updating firmware chapter in the SMU Reference Guide No Invalid cabling connection If multiple controller enclosures are used check the cabling for each system Verify controller enclosure cabling Verify use of proper cables Verify proper cabling paths for host connections Verify cabling paths between replication ports and switches are visible to one another Verify that cable connections are s...

Страница 56: ...Event List for indicators of a specific fault in a replication data path component Follow any Recommended Actions No Network error occurred during in progress replication Review event logs for indicators of a specific fault in a replication data path component Follow any Recommended Actions Click in the Volumes topic then click on a volume name in the volumes list Click the Replication Sets tab to...

Страница 57: ...stem monitors conditions at different points within each enclosure to alert you to problems Power cooling fan temperature and voltage sensors are located at key points in the enclosure In each controller module and expansion module the enclosure management processor EMP monitors the status of these sensors to perform SCSI enclosure services SES functions The following sections describe each elemen...

Страница 58: ...ly Table 23 Controller platform temperature sensor descriptions Description Normaloperating range Warningoperating range Critical operating range Shutdown values CPU temperature internal digital thermal sensor 2 C 98 C 0 C 1 C 99 C 104 C None 0 C 104 C SAS2008 internal digital sensor 3 C 112 C 0 C 2 C 113 C 115 C None 0 C 115 C Supercapacitor pack thermistor 0 C 50 C None None None Onboard tempera...

Страница 59: ...ing software updates through the product interface Review your product documentation to identify the recommended software update method To download product updates go to either of the following Hewlett Packard Enterprise Support Center www hpe com support hpesc Hewlett Packard Enterprise Support Center Software downloads www hpe com support downloads Software Depot www hpe com support softwaredepo...

Страница 60: ...ce for remote support If your product includes additional remote support details use search to locate that information Remote support and Proactive Care information HPE Get Connected www hpe com services getconnected HPE Proactive Care services www hpe com services proactivecare HPE Proactive Care service Supported products list www hpe com services proactivecaresupportedproducts HPE Proactive Car...

Страница 61: ...and the Council A chemical information report for this product can be found at www hpe com info reach For Hewlett Packard Enterprise product environmental and safety information and compliance data including RoHS and REACH see www hpe com info ecodata For Hewlett Packard Enterprise environmental information including company programs product recycling and energy efficiency see www hpe com info env...

Страница 62: ...losure See Figure 1 page 10 for front view display of the bezel Enclosure bezel attachment Figure 25 Partial exploded view showing bezel alignment with 2U chassis Orient the enclosure bezel to align its back side with the front face of the enclosure as shown in Figure 25 Face the front of the enclosure and while supporting the base of the bezel while grasping the left and right ear covers position...

Страница 63: ...drive expansion enclosure Figure 27 LEDs MSA 2050 Array SFF or supported 24 drive expansion enclosure front panel 1 2 3 Left ear Right ear 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Notes Integers on disks indicate drive slot numbering sequence The enlarged detail view at right shows LED icons from the bezel that correspond to chassis LEDs Bezel icons for LEDs Ball stud t...

Страница 64: ...tifies the ear kit that connects to LED light pipes in the bezel or ear cover LED Description Definition 1 Enclosure ID Green On Enables you to correlate the enclosure with logical views presented by management software Sequential enclosure ID numbering of controller enclosures begins with the integer 1 The enclosure ID for an attached drive enclosure is nonzero 2 Disk drive Online Activity See Di...

Страница 65: ...sk is not being accessed A predictive failure alert may have been received for this device Further investigation is required On Amber blinking regularly 1 Hz Online possible I O activity A predictive failure alert may have been received for this device Further investigation is required Blinking irregularly Amber blinking regularly 1 Hz The disk drive is active but a predictive failure alert may ha...

Страница 66: ...agrams with tables that immediately follow provide descriptions of the different controller modules and power supply modules that can be installed into the rear panel of an MSA 2050 controller enclosure Showing controller modules and power supply modules separately from the enclosure provides improved clarity in identifying the component items called out in the diagrams and described in the tables...

Страница 67: ... applies to all negotiated link speeds 4 Network Port Link Speed4 Off Link is up at 10 100base T negotiated speeds Amber Link is up and negotiated at 1000base T 5 OK to Remove Off The controller module is not prepared for removal Blue The controller module is prepared for removal 6 Unit Locator Off Normal operation Blinking white Physically identifies the controller module 7 FRU OK Off Controller ...

Страница 68: ... Link Speed4 Off Link is up at 10 100base T negotiated speeds Amber Link is up and negotiated at 1000base T 5 OK to Remove Off The controller module is not prepared for removal Blue The controller module is prepared for removal 6 Unit Locator Off Normal operation Blinking white Physically identifies the controller module 7 FRU OK Off Controller module is not OK Blinking green System is booting Gre...

Страница 69: ...ites it to disk This means the system can be operational within 30 seconds and before the typical host I O time out of 60 seconds at which point system failure would cause host application failure If primary power is restored after the backup power is depleted the system boots and restores data to cache from CompactFlash which can take about 90 seconds The cache flush and self refresh mechanism is...

Страница 70: ...ycling enclosures AC model DC model LED Description Definition 1 Input Source Power Good Green Power is on and input voltage is normal Off Power is off or input voltage is below the minimum threshold 2 Voltage Fan Fault Service Required Amber Output voltage is out of range or a fan is operating below the minimum required RPM Off Output voltage is normal 1 2 1 2 ...

Страница 71: ...050 3 5 12 drive or 2 5 24 drive enclosure rear panel LED Description Definition 1 Power supply LEDs See Power supply LEDs page 69 2 Unit Locator Off Normal operation Blinking white Physically identifies the expansion module 3 OK to Remove Not implemented 4 Fault Service Required Amber A fault has been detected or a service action is required Blinking amber Hardware controlled powerup or a cache f...

Страница 72: ...lude an earth ground connection to the AC power source The supply conductors and power distribution boxes or equivalent metal enclosure must be grounded at both ends Power circuits and associated circuit breakers must provide sufficient power and overload protection To prevent possible damage to the AC power distribution boxes and other components in the rack use an external independent power sour...

Страница 73: ...extension cords with the enclosures Not all power cords have the same current ratings Household extension cords do not have overload protection and are not meant for use with computer systems Ventilation requirements Refer to Environmental requirements page 75 for detailed environmental requirements Do not block or cover ventilation openings at the front and rear of an enclosure Never place an enc...

Страница 74: ...ferent power supplies IOMs and differing calibrations between scales 3Weights may vary due to actual number and type of disk drives SAS or SSD installed Table 27 Rackmount enclosure dimensions Specifications Rackmount 2U Height y axis 8 9 cm 3 5 inches Width x axis Chassis only Chassis with bezel ear caps 44 7 cm 17 6 inches 47 9 cm 18 9 inches Depth z axis SFF drive enclosure 2U24 Back of chassis...

Страница 75: ...rements for both U S and international operation The power supply modules use standard industrial wiring with line to neutral or line to line power connections Power cord requirements Each enclosure is equipped with two power supplies of the same type both AC or both DC For enclosures equipped with AC power supply modules use two power cords that are appropriate for use in a typical outlet in the ...

Страница 76: ... a static sensitive component or assembly Grounding methods to prevent electrostatic discharge Several methods are used for grounding Use one or more of the following methods when handling or installing electrostatic sensitive parts Use a wrist strap connected by a ground cord to a grounded workstation or computer chassis Wrist straps are flexible straps with a minimum of 1 megohm 10 percent resis...

Страница 77: ...0 SAN host port perform the following procedure to install an SFP Refer to the figure above when performing the steps 1 Orient the SFP as shown above and align it for insertion into the target host port The SFP should be positioned such that the actuator pivot hinge is on top 2 If the SFP has a plug remove it before installing the transceiver Retain the plug 3 Flip the actuator open as shown in th...

Страница 78: ...d of the SFP connector NOTE To remove an SFP module perform the above steps in reverse order Verify component operation View the host port Link Status Link Activity LED on the controller module face plate A green LED indicates that the port is connected and the link is up see LED descriptions for information about controller module LEDs ...

Страница 79: ...DC power supply 12 supported drive enclosures LFF drive enclosure 14 MSA 2050 SAN enclosure rear panel AC power supply 66 CLI port USB Type B 13 66 DC power supply 66 DC power switch 66 host ports 13 66 mini SAS expansion port 13 network port 13 66 reserved port 13 66 SAS expansion port 66 service port 1 13 66 service port 2 13 66 configuring direct attach configurations 28 switch attach configura...

Страница 80: ...peed 67 68 OK to Remove 67 68 Unit Locator 67 68 power supply unit Input Source Power Good 70 Voltage Fan Fault Service Required 70 supported drive enclosures expansion LFF enclosure rear panel Fault Service Required 71 FRU OK 71 OK to Remove 71 power supply 71 SAS In Port Status 71 SAS Out Port Status 71 Unit Locator 71 local management host requirement 73 P physical requirements 74 power cord re...

Страница 81: ...ngle controller configuration 50 correcting enclosure IDs 46 enclosure does not initialize 46 expansion port connection fault 53 host side connection fault 51 Remote Snap replication faults 53 using event notification 45 using system LEDs 47 using the CLI 45 using the SMU 44 V ventilation requirements 73 W warnings voltage and temperature 57 ...

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